FS4 - Uncategorized AJA - Free user manual and instructions
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| Product Type | Multi-Channel Frame Synchronizer & Converter |
| Brand | AJA Video Systems |
| Model | FS4 |
| Video Processing Modes | Four-Channel 2K/HD/SD or Single-Channel 4K/UltraHD/2K/HD/SD |
| Video Inputs | 4x BNC (SDI) + 4x SFP cages (optional), up to 12G-SDI in Single Channel mode |
| Video Outputs | 4x BNC (SDI) + 4x SFP cages, BNC Monitor, HDMI Monitor, Reference Loop |
| Audio Inputs/Outputs | 16 ch AES/EBU on DB-25, 128 ch MADI (BNC & Fiber), embedded SDI (16 ch per link) |
| Audio Processing | 277x208 routable audio matrix, sample rate conversion, 5.1/7.1 to stereo mixdown |
| Control | Front panel with display and knobs, web browser GUI, SNMP, GPI (4 in/4 out) |
| Power Supply | Dual redundant, autosensing 100-240 VAC, 50/60 Hz, 55 W typical (70 W max) |
| Dimensions (W x H x D) | 17.5 x 1.75 x 16 inches (44.45 x 4.5 x 40.65 cm) |
| Weight | 7.85 lbs (3.56 kg) |
| Operating Temperature Range | 0°C to 40°C (32°F to 104°F) typical |
| Warranty | 5 years international |
| Compliance | FCC Class A, CE, ICES-003, EN 62368-1, etc. |
| Included Accessories | 2x AC power cords, rackmount brackets (pre-installed), manual |
| Optional Upgrades | SFP I/O modules (12G/6G/3G-SDI) |
| Cleaning Instructions | Wipe with a dry cloth; do not use liquids or sprays |
| User-Serviceable Parts | None; refer all servicing to qualified personnel |
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USER MANUAL FS4 AJA
Installation and Operation Guide
Trademarks
AJA^ and Because it matters. are registered trademarks of AJA Video Systems, Inc. for use with most AJA products. AJA^TM is a trademark of AJA Video Systems, Inc. for use with recorder, router, software and camera products. Because it matters. is a trademark of AJA Video Systems, Inc. for use with camera products.
Corvid Ultra ^® , Io ^® , Ki Pro ^® , KONA ^® , KUMO ^® , ROI ^® and T-Tap ^® are registered trademarks of AJA Video Systems, Inc.
AJA Control Room™, KiStor™, Science of the Beautiful™, TruScale™, V2Analog™ and V2Digital™ are trademarks of AJA Video Systems, Inc.
All other trademarks are the property of their respective owners.
Copyright
Copyright © 2022 AJA Video Systems, Inc. All rights reserved. All information in this manual is subject to change without notice. No part of the document may be reproduced or transmitted in any form, or by any means, electronic or mechanical, including photocopying or recording, without the express written permission of AJA Video Systems, Inc.
Contacting AJA Support
When calling for support, have all information at hand prior to calling. To contact AJA for sales or support, use any of the following methods:
| Telephone +1.530.271.3190 |
| FAX +1.530.271.3140 |
| Web https://www.aja.com |
| Support Email support@aja.com |
| Sales Email sales@aja.com |
Contents
Notices 2
Trademarks 2
Copyright 2
Contacting AJA Support 2
Chapter 1 – Introduction .....8
Overview....8
Video Features 8
Audio Features 9
Other Features. 9
FS4 Control 9
Front Panel Control. 10
Remote Web Browser Control.... 10
GPI Inputs and Outputs 10
SNMP Interface Monitoring 10
Technical Description.... 10
Four Channel Mode 10
Single Channel Mode 11
Enhanced Single Channel Mode 13
Video Processor(s) 13
Audio Processor.... 13
Optional FS4 Features 13
SFP I/O. 13
Operation Overview. 14
About Inputs and Outputs 14
About Reference and Genlock Source. 14
Retained Settings. 14
In This Manual 14
Chapter 2 – Controls, Indicators, and Connections ..... 16
Overview.... 16
Front Panel Description 16
Front Panel Layout and Operation 16
Operational Summary. 17
Alphanumeric Display....18
Control Knobs 18
Button Menus 19
Status LED Indicators 22
Incompatibility Alarms 23
Rear Panel Description 23
Connectors....24
Chapter 3 – Installation & Configuration .....26
Installation Overview 26
Installation Summary 26
Unpacking....27
Shipping Box Contents 27
Installing Optional SFP I/O Modules. 27
FS4 Chassis Installation....27
Physical Requirements for Mounting the Chassis. 27
Power Requirements. 28
Networking 28
FS4 Default Network Settings 28
Networking Using DHCP or Default Static IP. 28
Networking the FS4 Using Your Own Static IP. 29
Using Ping to Test the Network Connection....29
Web Browser Control 30
Software Update Installation 31
Download the Latest Software 31
Unpack the Software 31
Uploading and Installing the Software to the FS4 31
System Cabling....32
System Video/Audio Cable Connections 32
Four Channel Mode Configuration Examples 32
Single Channel Mode Configuration Examples 37
Single Channel Mode Conversion Examples. 41
Local Monitoring with the FS4 42
GPI Connections 42
Stand Alone Tests 42
First Power Up 43
FS4 Processing Examples 44
About FS4 Operating Modes 44
General FS4 Setup 44
Dual Stream Signal Separation 45
Chapter 4 – Display Menus ..... 47
Overview....47
FS4 Modes, System Parameters, and Video Parameters ..... 47
Presets and FS4 Operating Mode. 48
Parameter Menus. 48
STATUS Menu Group 48
System Status 49
Vid 1/2 I/O 49
Vid 3/4 I/O 49
Vid I/O 49
Vid 1 Format 49
Vid 2-4 Format. 49
Vid 1 Alarm....50
Vid 2-4 Alarm 50
Vid Alarm 50
Channel Name. 50
SDI Input 50
Monitor Output 50
AES Input 51
MADI In/Out 51
Power/Temp Alarm. 51
Caption Status....51
REMOTE Menu Group....51
1 Remote Control....52
1.1 Authentication 52
2.1-4 GPI IN 1-4 Response 52
Interaction of Presets and GPIs 53
3.1-4 GPI 1-4 OUT 54
VIDEO Menu Group 54
1 Output Frame Rate. 54
2 Genlock Source 54
3.1 HDMI Mon 2K Crop 54
3.2 HDMI RGB Range....55
3.3 Monitor Map 55
4.1 SDI1 3G Detect ..... 55
4.2 SDI2 Input Protect 56
4.3, 4.5, 4.7 SDI3/5/7 3G Detect ..... 56
4.4, 4.6, 4.8 SDI4/6/8 Input Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
CONFIG Menu Group 56
1 System Name 56
2 Operation Mode 57
3.1 IP Config 57
3.2 IP Address 57
3.3 Subnet Mask. 58
3.4 Default Gateway 58
3.5 MAC Address (view only)....58
4 SNMP Enable Parameters. 58
About FS4 Alarms. 59
5.1, 5.2 Power Supply 1-2 Alarm....59
6 Vid Format Alarm. 59
6.1-6.4 Vid1-4 Format Alarm 59
7 Reference Alarm 59
9 Screen Saver....59
10 Display Intensity. 60
11 Fan Speed....60
12 Serial Number 60
13 Software Version 60
14 Reboot. 60
AUDIO Menu Group....60
1 MADI Output Mode 60
2.1-2.8 SDI 1-8 SRC Mode 61
2.9 AES SRC Mode 61
2.10 MADI BNC SRC Mode 61
2.11 MADI Fiber SRC Mode 61
3.0 Mix Down 1 Mode....62
4.0 Mix Down 2 Mode....63
7 Mix Down Reset. 64
8 Global Audio Output 64
Video with Audio Routing 65
Interaction of Presets and GPIs 65
Video Select Buttons VID1-VID4 66
INPUT Menu Group 66
1 Input....66
2 Loss of Input 67
3 Reverse Telecine 67
4 Input Scan Format 68
5 Input Image Mapping....68
ANC Menu Group 68
1.1 AFD Out. 68
1.2 AFD Output Lines 69
1.3 Down Convert AFD dfl 69
2 Caption Xlator....69
3 SD Line 21 Blanking 70
4 Override VPID 71
4.1 Colorimetry 71
4.2 Transfer Characteristic 71
5 SDI Mon Override VPID 71
6 Timecode Xlator 71
COLOR Menu Group. 72
1.0 Proc Amp Enable (YUV) 72
2.0 Color Corrector (RGB) 73
16.0 Video Legalizer 73
FORMAT Menu Group. 74
1 Output Format 74
3.0 Link Config SDI1, 2, 3, 4 ..... 75
3.0 Link Config SDI1-4 76
4.0 Link Config SDI5-8 76
5 Output Image Mapping. 77
6 SD Aspect Ratio....77
7 Upconvert Mode 78
8 Down Convert Mode 79
SCALE Menu Group 80
Custom Conversion Settings....80
1.0 Custom Size/Pos 80
Region of Interest (ROI) 81
KEYER Menu Group 83
1 Background Fill 83
2 Sidebar Edge 83
3.1 Matte Luma 83
3.2 Matte Chroma. 83
3.3 Matte Hue 84
TIMING Menu Group 84
1 Maintain A/V Sync 84
2 Output Timing H 87
3 Output Timing V 87
4 Frame Delay 88
TSTGEN Menu Group 88
1 Test Pattern Gen 88
2 Test Pattern 89
FREEZE Menu Group 89
1 Freeze Output 89
Audio Select Buttons EMBED, AES 90
LEVEL Menu Group 90
EMBED Level Menus 90
AES/MADI Menus....91
DELAY Menu Group 92
EMBED Delay Menus....92
AES/MADI Delay Menus....93
MAP Menu Group 93
About Audio Routing 94
EMBED Map Menus. 94
AES/MADI Map Menus 95
Chapter 5 – Browser Remote Control .....96
Remote FS4 Control Via a Web Browser 96
General Web Browser Screen Description 96
Controlling Multiple FS4s. 97
Resetting Values To Factory Default Settings 98
Drop Down Parameter Operation 98
Slider Operation 98
Sub-Menus 98
Screen Descriptions....99
Network Pane and Network Configuration Screen 99
IP Address Type 100
IP Address 100
Netmask. 100
Default Gateway 100
Alarm Configuration Screen....101
Status Screen 101
Config Screen....103
System Name 104
FS4 Mode 104
SNMP Parameters. 104
Screen Saver 104
Display Intensity 104
Fan Speed 104
UPnP Host 105
UPnP Proxy.... 105
Video Screen 105
Audio Screen 106
Presets Screen 107
Presets Screen Controls....107
Interaction of Presets and GPIs 108
Remote Screen 109
Firmware Screen 109
Video Channel Screens....110
Input Screen 110
Format Screen....110
Timing Screen....111
Scale Screen 111
Keyer Screen....112
Test Gen Screen....112
Color Screen 113
ANC Screen. 113
Freeze Screen 114
Embedded Audio Channel Screens 114
Embed Level Screen 114
Embed Delay Screen....115
Embed Map Screen....115
AES (and MADI) Audio Channel Screens 115
AES/MADI Level Screen....116
AES/MADI Delay Screen....116
AES/MADI Map Screen 116
Chapter 6 – SNMP. 117
FS4 Simple Network Management Protocol .....117
SNMP Configuration 117
AJA MIBs 117
Front Panel SNMP Configuration .....118
Web Browser SNMP Configuration....118
SNMP Configuration Parameters. 119
4.0 SNMP Enable .....119
4.1 SNMP Trap Destination 1....119
4.2 SNMP Trap Port 1....119
4.3 SNMP Trap Destination 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
4.4 SNMP Trap Port 2....119
Appendix A – Specifications ..... 120
FS4 Tech Specs 120
Appendix B - FS4 Pinouts. 125
GPI Pinouts 125
Audio Connection Pinouts. 126
Digital Audio....126
Appendix C – Safety & Compliance. 127
Warranty and Liability Information 136
Index. 137
Chapter 1 – Introduction

Overview
FS4 is a 4-channel 2K/HD/SD or 1-channel 4K/UltraHD frame synchronizer and up, down, cross-converter and so much more. This combination frame synchronizer and converter offers incredible versatility and connectivity in a sleek 1RU frame for all your 4K/UltraHD and 2K/HD/SD conversion needs. FS4 Offers a wide range of connectivity for both video and audio including optional SFP's for single link 12G-SDI connectivity. For HDR workflows, the FS4 supports automatic or configurable HDR metadata generation for the SDI output VPID and HDMI output HDR Infoframe.
In Four Channel Mode, FS4 can do the work of four separate devices in 2K/HD/SD or combine all processors and channels together for maximum flexibility for 4K/UltraHD productivity in Single Channel Mode.
In Single Channel Mode you can handle a complete 4K/UltraHD/2K/HD/SD feature set including up, down, cross-conversion, 2SI compatibility and unparalleled video connectivity with I/O options for 4K/UltraHD including Quad 1.5Gb, Dual 3Gb, Quad 3Gb, and 6Gb and 12Gb over optional SFP modules.
FS4's extensive digital video connectivity is only matched by its expansive digital audio flexibility. The growth of 5.1 and 7.1 audio has increased the number of audio channels that must be managed in a production as well as needing to create stereo mixdowns from 5.1 and 7.1 sources. The MADI standard provides a convenient way to transport large numbers of audio channels along a single cable, simplifying the cabling demands for broadcasters, mobile trucks and production. FS4 supports both fiber and coax connections with 128-channel MADI input and output. An internal 277x208 audio matrix allows full routing of MADI, mixdowns and all audio coming from SDI, fiber and AES sources for an incredible amount of audio processing capability in a single box.
Video Features
- Support for two modes: Four-channel 2K/HD/SD or Single-channel 4K/UltraHD/2K/HD/SD workflow support
- 4K/UltraHD/2K/HD/SD video processing and up, down, cross-conversion; easily frame sync any camera feed for UltraHD production
• Full range of I/O options for 4K/UltraHD include Dual 3Gb, Quad 3Gb, 6Gb, 12Gb over a range of SDI and optional SFP choices - Single-link, dual-link, quad link conversion
• Automatic link timing alignment for dual and quad link SDI inputs
• Frame Synchronization - Genlock to external loop through reference or SDI input
-
YCbCr, 4:2:2, 10-bit
-
BNC and HDMI monitoring outputs 2K/HD/SD, 4K/UltraHD automatically downconverted to 2K/HD
- Frame Rate Conversion (3:2, 1:2, 2:1, but not for 4K/UltraHD converted to 4K/UltraHD)
- Quadrant and Two Sample Interleave (2SI) mapping conversion
• De-interlacing and Interlacing - RGB Color Corrector
• Video Proc Amp controls - 3:2 cadence detection and removal for interlaced inputs and 3:2 cadence generation on interlaced outputs
• Built in Test Pattern Generators - Crop/Fill controls
- Matte generators for background fill
- Closed caption conversion (CEA-608/CEA-708)
• SCTE-104 pass-through - Ancillary Timecode (ATC) pass-through or translation (LTC, VITC1, VITC2)
- Adjustable output timing and delay, up to 20 frames
Audio Features
• 48kHz, 24 bit audio (20 bit for SD)
• Balanced AES I/O (16 ch input, 16 ch output)
• MADI I/O (128 ch input, 128 ch output, via BNC and Fiber)
- Embedded Audio (4x16 ch I/O in Four Channel Mode)
- 277x208 routable mono audio matrix
• Audio Sample Rate Conversion available on all audio inputs
- Independent level, phase, delay controls for each audio channel
- Maintain A/V Sync feature: Video timing changes can be linked to audio delay settings so audio and video remain in sync
• 5.1 and 7.1 to Stereo mixdown processors
Other Features
- Simple operation, redesigned menu structure and quick access to features via front panel buttons or web UI
- Built in web server. Supports remote status and control and remote software updates
- Presets
- Redundant power
- Configurable Alarms
- EIA 19" Rack mountable 1RU frame, offering space, power and cost efficiencies ideal for outdoor broadcast trucks, post production or broadcast settings
- Five-year international warranty with unlimited technical support.
FS4 Control
FS4 operation can be monitored and changed in a number of ways. Feature sets in each of the control methods vary, although the front panel and web browser interfaces offer many of the same features.
Front Panel Control
The FS4 front panel offers the most direct control, ideal for use in machine rooms or wherever quick changes and status checks must be made. The buttons and knobs control menus in the display, allowing you to fully configure the system according to your purposes. You can control inputs, outputs, processing paths, keying, and much more.
Remote Web Browser Control
The FS4 internally contains an optimized web server that allows remote monitoring and parameter setting via an Ethernet 10/100/1000 network-attached computer running a web-browser. Networks can be closed local area networks, a straight computer-to-FS4 cable, or for greatest flexibility, exposed through a firewall to a broadband WAN. From a network-connected computer you can communicate with one or more FS4 devices, and you can identify the one you are connected to via LEDs on the FS4's front and rear panels.
GPI Inputs and Outputs
General Purpose Inputs and Outputs are available on the FS4 back panel to provide contact closure control. Using the inputs, an external contact closure activates a specified function on the FS4. Using the outputs, specific FS4 functions can produce a contact closure to activate any desired function on external equipment. The functions to be activated by an input or that can activate an output are set using the front panel and browser menus.
SNMP Interface Monitoring
SNMP offers remote network monitoring of alarm conditions.
Technical Description
The FS4 features an incredibly flexible architecture, offering powerful Video Processors for video conversion and processing, a separate Audio Processor, and input and output video and audio signal routing. The FS4 has two completely separate operating modes, selected with a menu parameter and then rebooting the unit.
Four Channel Mode
In Four Channel Mode four independent HD/SD Video Processors are available, Frame synchronization, genlock, and up, down and cross conversion is available for a variety of video inputs and outputs. This mode also allows each Video Processor to use any one of the other Video Processor's video as a background or sidebar key.
Each Video Processor routes its output to dedicated SDI output ports, depending on the transport configuration. For single link transport the output of Video Processor 1 is sent to SDI Out 1 and SDI Out 5 (for use with an optional SFP module). For dual link transport, the output of Video Processor 1 is routed to the SDI Out 1 and SDI Out 2 pair, and also to the SDI Out 5 and SDI Out 6 pair. In addition, any Video Processor output can be routed to the monitor BNC and HDMI outputs.
Four Channel Mode supports frame rate conversion within the same "family" of frame rates. These families are:
• 59.94/29.97/23.98
· 50/25
• 60/30/24
Audio processing is available for all input audio, and audio can be routed to any of the Video Processors for embedding, and to any of the audio output connectors.
Figure 1. FS4 Simplified Block Diagram, Four Channel Mode

flowchart
graph TD
A["Input: SNMP Control via Command Line"] --> B["Random Web Browser Control"]
B --> C["LAN or WAN Ethernet"]
C --> D["Panel Control"]
C --> E["Embedded Web Server"]
D --> F["FS4 CPU"]
E --> F
F --> G["Outputs Processing"]
H["Passive Reference Loop"] --> I["Video with Embedded Audio"]
I --> J["Video Input Crosspoint Matrix and Audio De-Embedders"]
J --> K["Video Video"]
K --> L["Video Converter and Frame Sync"]
L --> M["Video Proc Amp and Color Corrector"]
M --> N["Test Signal Generator"]
N --> O["Video Sidebar Keyer"]
O --> P["Audio Embedder"]
P --> Q["Video Output Drivers"]
Q --> R["Optional SFP Out 1"]
Q --> S["Optional SFP Out 2"]
Q --> T["Optional SFP Out 3"]
Q --> U["Optional SFP Out 4"]
Q --> V["Optional SFP Out 5"]
Q --> W["Optional SFP Out 6"]
Q --> X["Optional SFP Out 7"]
Q --> Y["Optional SFP Out 8"]
Q --> Z["Optional SFP Out 9"]
Q --> AA["Optional SFP Out 10"]
Q --> AB["Optional SFP Out 11"]
Q --> AC["Optional SFP Out 12"]
Q --> AD["Optional SFP Out 13"]
Q --> AE["Optional SFP Out 14"]
Q --> AF["Optional SFP Out 15"]
Q --> AG["Optional SFP Out 16"]
Q --> AH["Optional SFP Out 17"]
Q --> AI["Optional SFP Out 18"]
Q --> AJ["Optional SFP Out 19"]
Q --> AK["Optional SFP Out 20"]
Q --> AL["Optional SFP Out 21"]
Q --> AM["Optional SFP Out 22"]
Q --> AN["Optional SFP Out 23"]
Q --> AO["Optional SFP Out 24"]
Q --> AP["Optional SFP Out 25"]
Q --> AQ["Optional SFP Out 26"]
Q --> AR["Optional SFP Out 27"]
Q --> AS["Optional SFP Out 28"]
Q --> AT["Optional SFP Out 29"]
Q --> AU["Optional SFP Out 30"]
Q --> AV["Optional SFP Out 31"]
Q --> AW["Optional SFP Out 32"]
Q --> AX["Optional SFP Out 33"]
Q --> AY["Optional SFP Out 34"]
Q --> AZ["Optional SFP Out 35"]
Q --> BA["Optional SFP Out 36"]
Q --> BB["Optional SFP Out 37"]
Q --> BC["Optional SFP Out 38"]
Q --> BD["Optional SFP Out 39"]
Q --> BE["Optional SFP Out 40"]
Q --> BF["Optional SFP Out 41"]
Q --> BG["Optional SFP Out 42"]
Q --> BH["Optional SFP Out 43"]
Q --> BI["Optional SFP Out 44"]
Q --> BJ["Optional SFP Out 45"]
Q --> BK["Optional SFP Out 46"]
Q --> BL["Optional SFP Out 47"]
Q --> BM["Optional SFP Out 48"]
Q --> BN["Optional SFP Out 49"]
Q --> BO["Optional SFP Out 50"]
Q --> BP["Optional SFP Out 51"]
Q --> BQ["Optional SFP Out 52"]
Q --> BR["Optional SFP Out 53"]
Q --> BS["Optional SFP Out 54"]
Q --> BT["Optional SFP Out 55"]
Q --> BU["Optional SFP Out 56"]
Q --> BV["Optional SFP Out 57"]
Q --> BW["Optional SFP Out 58"]
Q --> BX["Optional SFP Out 59"]
Q --> BY["Optional SFP Out 60"]
Q --> BZ["Audio Level, Phase, Delay Adjustment"]
BZ --> CA["Audio Processor"]
CA --> CB["Tone Generator"]
CB --> CC["Audio Router and Mapper"]
CC --> DC["Audi R (Ls Rs) Lr Rr"]
CC --> DD["Mix Down (2)"]
DD --> CE["Lr Rr"]
CE --> CA
CC --> CF["Audi Audio, Lr Rs, Lr Rr"]
CF --> CA
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#cfc,stroke:#333
Single Channel Mode
In Single Channel Mode a single 4K/UltraHD capable Video Processor is available, allowing up, down, and cross conversion between a variety of 4K, Ultra HD, 3G, HD, and SD video formats.
The same processed output signal is sent to all the FS4 output connectors, depending on transport configuration. For example, when in Quad Link mode, the same signal is routed to the SDI Out 1-4 connectors, and also to the SDI Out 5-8 connectors (for use with optional SFP modules). In Dual Link mode four copies of the processed video are routed to the SDI Out 1 & 2 pair, SDI Out 3 & 4, SDI Out 5 & 6 and SDI Out 7 & 8. The Video Processor output is also available on the monitor BNC and HDMI ports, and will be downconverted if necessary.
In Single Channel Mode only matte and black sidebar keying is available. Scale, Position, Crop, and ROI are also available in Single Channel Mode for all formats except when both the input and output formats are 4K/UltraHD.
Single Channel Mode frame rate conversion within the same "family" of frame rates are supported for HD/SD signals, and for up and down format conversion only to or from 4K/UltraHD signals. These frame rate families are:
• 59.94/29.97/23.98
· 50/25
· 60/30/24
However, when the FS4's input and output are both 4K or UltraHD, the frame rates must be the same even within the same family. For example, if the FS4 receives UltraHD 59.94, when it is configured for UltraHD output, that frame rate must also be 59.94.
Audio processing and routing in Single Channel Mode is similar to Four Channel Mode,
Figure 2. FS4 Simplified Block Diagram, Single Channel Mode

flowchart
graph TD
A["SNMP Control via Command Line"] --> B["LAN or WAN Ethernet"]
C["Remote Web Browser Control"] --> B
D["Panel Control"] --> E["FS4 CPU"]
F["Embedded Web Server"] --> E
G["Video Input Crosspoint Matrix and Audio De-Embedders"] --> H["Video Converter and Frame Sync"]
H --> I["Video Proc Amp and Color Corrector"]
I --> J["Test Signal Generator"]
J --> K["Video Sidebar Keyer"]
K --> L["Audio Embedder"]
M["Passive Reference Loop"] --> N["Video with Embedded Audio"]
O["SDI In 1"] --> N
P["SDI In 2"] --> N
Q["SDI In 3"] --> N
R["SDI In 4"] --> N
S["*Optional SFP In 6"] --> N
T["*Optional SFP In 5"] --> N
U["*Optional SFP In 8"] --> N
V["*Optional SFP In 7"] --> N
W["*12/6G-SDI Capable Input"] --> X["Video Input Crosspoint Matrix and Audio De-Embedders"]
Y["Audio"] --> Z["AES/EBU Digital Audio In"]
AA["MADI Fiber In"] --> AB["BNC In"]
AC["Audio Level, Phase, Delay Adjustment"] --> AD["AUDIO PROCESSOR"]
AE["Tone Generator"] --> AF["Audio Router and Mapper"]
AG["L C R (Ls Rs) Lr Rr"] --> AH["Mix Down (1)"]
AI["L"] --> AH
AJ["R"] --> AH
AK["16 ch. Audio"] --> AL["Down Converter"]
AL --> AM["Video Monitor HDMI Out"]
AL --> AN["Video Monitor SDI Out"]
AO["OutputsProcessing"] --> AP["GPI Outputs (4)"]
AQ["16 ch. Audio"] --> AR["AES/EBU Digital Audio Out"]
AQ --> AS["MADI Fiber Out"]
AQ --> AT["MADI BNC Out"]
Enhanced Single Channel Mode
When Single Channel Mode is selected and both the video input and output are 4K/UltraHD, the FS4 automatically enters Enhanced Single Channel Mode. In this mode, the SDI (BNC) Monitor output can be configured differently from the main 4K/UltraHD output. A variety of formats and frame rates (up to 2Kp 60) can be selected, providing a second configurable video output. In addition, different color settings can be applied to the SDI Monitor output, independently of the main output.
Enhanced Single Channel Mode Monitor configuration changes only affect the SDI (BNC) Monitor output, and are not applied to the HDMI Monitor output.
Video Processor(s)
Each Video Processor performs format conversion, frame synchronization, signal processing, and keying operations. Conversion is done with very high quality scalers. De-interlacing is performed with high quality motion-adaptive processing including diagonal filters. The Processing Amplifier and Color Corrector supports video signal adjustment with standard Proc Amp controls and RGB style color correction.
The FS4 can embed 16 channels of audio from any of the audio inputs to each complete video output. On multiple link outputs, the audio is embedded on the first link. When signals are duplicated on multiple outputs, the same embedded audio is present on the first link of all the duplicated outputs.
Audio Processor
The Audio Processor accepts AES, MADI and embedded SDI audio and performs high quality sample rate conversions as required. Full audio channel mapping supports any mixture of inputs to outputs.
Dolby 5.1 and similar schemes of non-PCM digital encoded audio can be passed unaltered, provided the input is genlocked to the FS4 output.
Internal mixers are available that permit mixing down five inputs (5.1) or seven inputs (7.1) to a left/right stereo mix. Two Mixdown mixers are available in Four Channel Mode, and one Mixdown mixer is available in Single Channel Mode.
Optional FS4 Features
SFP I/O
All FS4's SFP I/O ports support up to 3G-SDI data rates. In Single Channel mode the FS4's SFP ports also support 12G-SDI and 6G-SDI, when equipped with a compatible SFP module. See "Appendix A Specifications" for listings of the types of SFPs supported. Only AJA SFP modules are supported; use of other manufacturer's modules is not supported and may void the warranty.
NOTE: See https://www.aja.com/software/configurator for specific information about compatible SFP modules.
About Inputs and Outputs
In general, to use the FS4 for video conversion, select a Video Processor Channel, select an Output Format that is compatible with the current FS4 reference signal (see "About Reference and Genlock Source" on page 14), and then select an Input port. The FS4 will automatically determine the selected input video format and convert it to the selected Output Video Format. The converted video is routed to the FS4 output ports.
About Reference and Genlock Source
A source being used by the FS4 for reference must be compatible with the FS4 video output format. These signals are compatible when they are both in the same frame rate family (59.94/29.97/23.98, or 50/25, or 60/30/24).
The FS4 can be configured to operate with one of a variety of references, including genlock to the signal from the Reference input connector, genlock to the current video input signal, or Free Run. Your choice of reference needs to meet your individual facility requirements, and must be accounted for when you configure an FS4 video output format.
Retained Settings
The FS4 stores the current value of each operational parameter in non-volatile memory so that the system returns to the same state after a power cycle. Most of the settings for Single Channel mode are stored separately from those for Four Channel Mode, and vice-versa. These separate settings for each mode can be changed only when operating in that mode.
The FS4 also stores independent values for many settings, so that if the unit is configured for one operation, changed to a different operation, and then returned to that prior operation, the settings for that prior operation are restored.
For example, changing the Video Input selection automatically selects new values for Proc Amp parameters and RGB Proc Amp parameters. This is referred to as Source Memory.
Each video source remembers its own Proc Amp settings.
Similarly, changing the Output Format selection automatically selects new values for H & V timing parameters. This is referred to as Output Timing Memory. Each Output Format mode remembers its own H & V timing settings.
As another example, Output Format Mapping stores the Output Format selected for any of the frame rates. That Mapped Output Format is recalled if the frame rate selection is changed.
Presets can also be used to restore the FS4 to a previous state. Many parameters can be individually reset to factory values using individual menus, or the entire FS4 can be reset to defaults (with the PRESET, Factory Preset menu). Presets for Single Channel mode are separate from those for Four Channel Mode. Preset changes made in one mode will not affect settings for the other mode.
In This Manual
Chapter 1: Introduction provides an overview and a list of box contents.
Chapter 2: Controls, Indicators, and Connections describes controls, indicators, and connections.
Chapter 3: Installation and Configuration provides complete instructions for installing and configuring the unit.
Chapter 4: Display Menus explains how to use the controls and display menus.
Chapter 5: Browser Control explains how to use the unit remotely via a web browser on a network-attached computer.
Chapter 6: SNMP discusses support of SNMP.
Appendix A: Specifications presents a list of technical specifications for the product.
Appendix B: Pinouts explains the rear panel connector pinouts.
Appendix C: Safety & Compliance provides regulatory compliance statements, advisories and warnings.
Warranty and Index
Chapter 2 – Controls, Indicators, and Connections
Overview
The controls, indicators, and connectors illustrated and described in this chapter allow you to connect, operate, and monitor the FS4 system and to troubleshoot problems if you encounter them. Becoming familiar with the front and rear panels also simplifies system installation, setup, and operation.
Front Panel Description

Front Panel Layout and Operation
The FS4's front panel control system is designed to be quick and easy to use. The alphanumeric display on the left shows status and parameter information. SELECT and ADJUST knobs provide fast menu scrolling, parameter selection and adjustment. Status LEDs on the right report important system information.
The buttons on the front panel operate interactively. At the center of the panel are System Selection buttons, which provide direct access to parameter menus that control basic FS4 operation (like setting the output frame rate or selecting Single or Four Channel Mode). In addition, the STATUS button brings up menus that report FS4 status information, and the PRESET button displays Preset selection menus for rapid reconfiguration. When a System Selection button is pressed, the parameter menu that was last selected from that group will be displayed. Pressing any of these buttons de-selects all other SYSTEM buttons, CHANNEL SELECT buttons, VIDEO menu group buttons, and AUDIO menu group buttons to the right.
The four VID1-4 Channel Selection buttons to the right allow immediate access to separate parameter menus for each Video Processor (when in Four Channel Mode). The button for the currently selected Video Processor is illuminated. In Single Channel Mode pressing any of the four buttons will light the VID1 button, indicating that single Video Processor is selected for control. After a Video
Processor has been selected, the nine VIDEO Menu Group buttons on the right are activated. The VIDEO Menu Group button that was last selected for that Video Processor will be illuminated, and the alphanumeric display will show the last selected parameter menu for that Video Menu Group.
Similarly, the EMBED and AES Channel Select buttons selects either Embedded or AES audio, and activates the three AUDIO Menu Group buttons to the far right. The last selected AUDIO Menu Group button for that audio type will be illuminated and its last selected parameter menu will be displayed. Pressing an Audio Channel Select button de-selects the Video Channel Select button, and vice-versa.
This design allows rapid menu access, reducing the number of menus to scroll through, and time is saved when button presses automatically return to their last selected menus.
Operational Summary
To change FS4 operational parameters with the front panel controls:
- Select a system component and menu group for the alphanumeric display:
- For overall system control, press one of the six SYSTEM buttons,
- For control of a Video Processor, press one of the four VID1-4 Channel Select buttons and then press one of the VIDEO Menu Select buttons,
- For Embedded audio control, press the EMBED button and then press one of the AUDIO Menu Select Buttons,
-
For AES or MADI audio control, press the AES button and then press one of the AUDIO Menu Select Buttons.
-
Scroll through menus in a group: Turn SELECT.
-
Edit a menu parameter: Stop SELECT on the menu, then turn ADJUST to set the value. Changes are applied immediately.
Multiple Part Parameter Editing
To edit a multiple part parameter, such as an IP address,:
- Push the ADJUST knob momentarily (the value blinks).
- To save the whole parameter after editing, push ADJUST momentarily again.
Coarse Adjust Editing
To coarse adjust a value (for use with parameters that have more than 10 selections):
- 10x speed - Hold down the SYSTEM or currently active CHANNEL SELECT button (the button turns dark blue) and turn ADJUST. The values will change in approximately 10x increments.
- 100x speed (available for extremely wide-range parameters, like Audio Delay) - After enabling 10x speed above, momentarily release and press that group button a second time (the button turns light blue). Turning ADJUST will now change the value in approximately 100x increments.
Undo a Change
To restore a previous setting:
- Push SELECT momentarily.
Reset to Factory Default:
To return to the factory default of a parameter:
- Hold down ADJUST for 4 seconds.
Alphanumeric Display
The four-line alphanumeric display shows either status menus that can be scrolled through but not altered, or parameter adjustment menus that are numbered and grouped by function, whose parameters can be altered.
Status Menus
Status menus generally have a feature on the left, and the current status or setting for that feature next to it. Information can generally be shown in two columns, three columns, or four columns (two columns side by side).
Figure 3. Status Menu Front Panel Displays
| System Name | Feature1 | SETTING | STATUS | Feat1 STATUS | Feat5 | STATUS | |
| Feature 1 | STATUS | Feat2 | SETTING | STATUS | Feat2 STATUS | Feat6 | STATUS |
| Feat2 | STATUS | Feat3 | SETTING | STATUS | Feat3 STATUS | Feat7 | STATUS |
| Feat3 | STATUS | Feat4 | SETTING | STATUS | Feat4 STATUS | Feat8 | STATUS |
Parameter Menus
Parameter menu lines display the following information:
- First line—parameter number and name.
- Second line—the editable value set for a parameter.
- Third and fourth lines—current status, labels, or prompts.
Figure 4. Four Lines of the Front Panel Display
| 1 Param number & name |
| 2 Current value setting |
| 3 Legend, info or prompt |
| 4 Legend, info or prompt |
When you edit a parameter containing multiple values, such as the IP address, the value currently being edited blinks.
Control Knobs
The general rules of SELECT and ADJUST knob operation are:
SELECT
Turning the SELECT knob performs these actions:
- Turn SELECT in either direction to scroll through the menus.
- Stop on a menu to enter that menu for editing.
- Turn SELECT within a menu to scroll through multiple parameters.
- Pause on a parameter to select it for editing. For multiple fields in a parameter, use SELECT to move through the fields (after pressing ADJUST to enter field editing mode).
- Push SELECT momentarily to undo and restore the previous setting.
ADJUST
Turning the ADJUST knob performs these actions:
- Turn ADJUST to change the values of a selected parameter.
- In most cases, leaving a value in place for a moment sets that value.
- To perform special actions, such as recalling a register, push the knob to confirm the displayed value. Display line 4 indicates such special actions.
- Some parameters having multiple fields, such as IP Address require you to push the ADJUST knob to select a field, and push again to save changes.
- Hold down the knob to reset a value to the factory default; for multiple field values, all fields are reset to the default.
- When the STATUS button is selected, pressing ADJUST returns the user to the last mode and menu selected before SYSTEM -> STATUS was selected.
Button Menus
The general functions accessed by the front panel buttons are listed below:
System Buttons
STATUS
Displays the Status Menu Group, which shows current machine status and error conditions:
• Video Input and status
- Caption status
• Reference and Genlock status
- Output status
• Power and Temperature status
- System Name display
- Alarms
REMOTE
Displays the Remote Menu Group, which lets you select how to control the FS4:
- Control by local front panel only, remote sources only, or local and remote
- Authentication
• GPI input and output behaviour
VIDEO
Displays the System Video Menu Group, which lets you change or enable system wide video functions:
- Output frame rate selection
- Genlock reference source selection
• Monitor output settings
• Video input format settings, including 3G setup
CONFIG
Displays the Config Menu Group, which lets you configure the FS4 for your environment:
- System Name setting
• FS4 Mode (Single Channel or Four Channel) -
IP settings, MAC address
-
SNMP settings
- Alarm control
- Screen Saver, and Display intensity
- Fan speed
- System serial number and software version
- System reboot
AUDIO
Displays the System Audio Menu Group, which lets you change or enable system audio functions:
- MADI Output mode
• Audio Input Sample Rate Conversion (Embedded, AES, MADI)
• 5.1 and 7.1 Mixdown
• Global Audio Output - Reset Channel Mapping (Embedded, AES, MADI)
PRESET
Displays the Preset Menu Group, which accesses the memory registers:
- Store, Recall, and edit the names of Presets
• Factory Preset (defaults)
Channel Select Buttons
VID1-4
Selects which Video Processor the nine VIDEO buttons will access menus for control. In Single Channel Mode any button can be pressed.
Blue = A valid video source is present.
Red = An invalid video source is detected (unless the alarm has been suppressed, in which case the LED will be turned off).
Off = No video is present, or invalid video is detected and the alarm is suppressed.
NOTE: The FS4 operating mode can be determined by the VID 1-4 button tallies. In Four Channel Mode all four LEDs light, with the selected Video Processor high tally. In Single Channel Mode only the VID1 button tally is low tally or high tally.
EMBED
Selects Embedded Audio for control by menus accessed by the three AUDIO Menu Group buttons.
Blue = Valid embedded audio is present on any video source.
Off = No embedded audio is detected.
AES
Selects AES and MADI for control by menus accessed by the three AUDIO Menu Group buttons.
Blue = Valid AES or MADI audio is present.
Off = No AES or MADI audio is detected.
INPUT
- Input source selections
- Loss of input selection
- Reverse Telecine
- Input scan format settings (PsF or interlaced)
- Input Image Mapping (Four Channel Mode only)
ANC
• Active Format Descriptor (AFD) settings
• Caption translation selection
• SD line 21 blanking selection
- VPID override
• Timecode translation selection
COLOR
- Proc Amp settings
• Color Corrector settings - Legalizer settings
FORMAT
- Output format
- SDI Monitor Format (Enhanced Single Channel Mode only)
- Link Configuration
- SD Aspect Ratio
- Up and Down Convert settings
- Output Image Mapping (Single Channel Mode only)
SCALE
- Custom Size and Position and ROI settings
• 1080i Output Filter settings
KEYER
- Background fill selection
- Sidebar Edge
- Matte adjustments
TIMING
• H and V timing and delay settings
- Maintain A/V Sync settings
- Frame Delay settings
TSTGEN
- Test Pattern settings
FREEZE
- Freeze Output setting
Audio Menu Group Buttons
LEVEL
• Audio level and phase settings
DELAY
- Audio delay settings
MAP
- Output mapping controls
Status LED Indicators
Indicators on the front panel are multi-state LEDs that light when a condition is present. The indicators and the conditions that cause them to light are as follows:
PS1/PS2
- Blue = Power Supply 1 or 2 is operational and receiving power. Both PS1 and PS2 LEDs must be lit blue to indicate redundant power is available.
- Red = Power supply is not receiving power or not operating within 10% of nominal value (unless the alarm has been suppressed, in which case the LED will be turned off).
- Off = Power supply alarm is suppressed and nominal power is not being received.
2SI
- Blue = (Single Ch only) The processor's output mapping is set to 2SI (2 Sample Interleave).
- Off = In Single Channel Mode the processor's output mapping is set to Quadrant (Square Division). In Four Channel Mode this LED is always off.
REF
- Blue = The FS4 is operating with a valid reference.
- Red = A reference alarm condition exists (unless the alarm has been suppressed, in which case the LED will be turned off).
ID
Blinks blue on and off when you right-click on an FS4 system name and choose identify in the web interface Network list. This action helps identify which system you're controlling when multiple units are operated from a single computer. The ID LEDs on the front and rear panels perform the same function. No matter which side of a rack you're facing, you'll be able to see one of the LEDs.
REMOTE
This multicolor LED indicates the current control mode:
- Blue= Local Only (front panel control only)
- Red = Remote Only (remote browser or panel control only)
- Purple = Local + Remote (front panel and remote control both enabled)
Incompatibility Alarms
The FS4 produces signal incompatibility alarms for a number of reasons. For example, incompatible conversion alarms can occur because the FS4 cannot convert between frame rate families (59.94/29.97/23.98, or 50/25, or 60/30/24).
Example Reference and Video Incompatibility Alarms
Video incompatibilities that the FS4 may detect include the following examples:
Table 1. Video Incompatibility Examples
| Video Incompatibility Detected | Alarm Status screen will show | Video Status screen will show | ||||
| Genlock Source is set to “Reference”, but no Reference signal is detected. In this example the cable has been disconnected. | IN SDI 1 OK | IN SDI 1 1080i59 | ||||
| BKGD | Matte | OK | BKGD | Matte | ||
| GEN Ref No Ref | GEN Ref No Input | |||||
| OUT1 | 1080i59 | OUT1 | UHDp59 | |||
| Reference signal format is not compatible with selected Output Format. In this example the reference signal is 50 Hz but output is 59.94 Hz. | IN SDI 1 OK | IN SDI 1 1080i59 | ||||
| BKGD | Matte | OK | BKGD | Matte | ||
| GEN | Ref | incompat | GEN | Ref | 1080i50 | |
| OUT | 1080i59 | OUT1 | UHDp59 | |||
Figure 5. Web page example of un-supported signals alarm.

Rear Panel Description

Connectors
The FS4 rear panel connectors are summarized below:
P/S 1 and P/S 2
Two IEC-60320 3-pin grounded connectors provide AC power to the two independent power supplies. The supplies are autosensing for 100–240 VAC, 50/60 Hz. Only one connection is required for operation, but both connectors must be plugged into AC power for redundant power protection.
AES/EBU Digital Audio
Two GPI DB-25F connectors provide input and output of 16 channels of balanced digital audio. See "Audio Connection Pinouts" on page 126.
MADI BNC
64 channel MADI output and input, on separate BNC connectors.
MADI Fiber
64 channel MADI output and input, on separate Multi-Mode fiber ST connectors.
GPI
The GPI DB-25F connector provides connection to external equipment or circuits via an isolated TTL-compatible interface. Four GPI inputs and four outputs are available. See "GPI Pinouts" on page 125.
Using the REMOTE menu group, you can program the actions of the GPI inputs and outputs individually. Contact closures on the inputs can trigger a wide variety of FS4 functions. Alarms or loss of video can trigger the GPI outputs.
10/100/1000 LAN
This RJ-45 connector provides an Ethernet 10/100/1000 port for connection directly to a computer or to a LAN through an Ethernet hub or switch.
SFP In/Out (optional)
All FS4's optional SFP I/O ports support up to 3G SDI operation. In addition, in Single Channel mode the FS4's SFP ports 5 through 8 In and Out also support 12G and 6GSDI, when equipped with a compatible SFP module.
SDI In/Out
Digital video with embedded audio. Four SDI input and Four SDI Output BNCs. 10 bit 3G SDI is supported. The input and output signals carried on each BNC connector varies, depending on the link configuration and format selection.
SDI Monitor Output (BNC)
The SDI Monitor output BNC connector supports 3G-SDI up to 2Kp 60 video with embedded audio. In Four Channel Mode you can select which Video Processor output is sent to this output connector. In Single Channel Mode any 4K/UltraHD output signal is automatically down-converted to 2K/HD and routed to this BNC connector.
In Enhanced Single Channel Mode you can configure a target down-conversion for this SDI (BNC) Monitor Output.
NOTE: The SDI Monitor output cannot display down-converted 4K/UltraHD PsF signals.
HDMI Monitor Output
The HDMI Monitor output connector supports up to 2Kp 60 HD HDMI video with embedded audio. In Four Channel Mode you can select which Video Processor output is sent to this connector. In Single Channel Mode any 4K/UltraHD output signal is automatically down-converted to 2K/HD and routed to this HDMI connector. In both these modes the HDMI Monitor output signal is the same as the SDI (BNC) Monitor output.
In Enhanced Single Channel Mode the HDMI Monitor output uses the same automatic down-conversion as Single Channel Mode. SDI Monitor output configuration changes described above for the SDI Monitor (BNC) output do not apply to the HDMI Monitor output.
NOTE: The HDMI Monitor output cannot display down-converted 4K/UltraHD PsF signals.
NOTE: 4K/Ultra HD and HDR signals can be monitored locally using the FS4's extra outputs (optional SFP modules required). See "Local Monitoring with the FS4" on page 42 for more information.
Ref Loop
The Reference Loop BNCs accept an Output timing reference signal. The reference can be analog SD blackburst or HD tri-level sync. Examples of permissible reference video input signals:
- 525 Color Black
• 625 Color Black
• 1080i Tri-level Sync - 720p Tri-level Sync
The 2 BNCs are a passive loop: one BNC is for the Input, and the remaining BNC can be connected to another piece of equipment in the reference chain or terminated.
NOTE: For proper operation the input Reference signal must be stable and properly terminated using a 75-ohm terminator on either the unused loop connector or the last piece of downstream equipment to which the Ref Video is connected.
Chapter 3 – Installation & Configuration
Installation Overview
The installation and set up of an FS4 is very simple. Plug both AC supply cords into AC mains power (separate branch circuits for redundancy), connect the LAN connector to a LAN, WAN or local computer with a web-browser, and then connect source and destination video and audio equipment.
NOTE: The AJA FS4 should be plugged into 3-wire 100-240 VAC 50/60 Hz power (autosensing) before you make connections to other equipment. The AC cords provide a path to ground for accidental static discharge to protect system equipment. The unit has two fully independent and redundant power supplies and will operate with one or both AC power cords plugged into the unit. However, fault-tolerance exists only if both power supplies are connected and plugged into separate branch circuits. Then if power is lost on a branch or one of the supplies, the unit will continue to operate on the remaining circuit and power supply.

Warning! To meet safety regulations for leakage current and to ensure redundancy in the event that a branch circuit breaker shuts off a branch, connect the dual power supplies to separate branch circuits.
Installation Summary
All the steps of installation and configuration are documented in this chapter and are summarized as follows:
- Unpack the shipping box, removing the FS4 and two power cords.
- Install any physical options, such as SFP I/O modules.
- Mount the physical chassis as desired: front rack, rear rack, or desk mount. If you are mounting multiple FS4 units, try to place them visually in the same area so you can use an attached computer to turn on and see the ID LED of the FS4 you're communicating with. For physical installation details see "FS4 Chassis Installation" on page 27.
- Connect the two FS4 power cords to mains AC. For redundancy, use both power supplies and connect them to separate branch circuits so that the FS4 will continue to operate even if a circuit breaker opens on one branch.
- If you plan to use remote control, connect your computer to the FS4 directly using an Ethernet cable, or connect both the computer and the FS4 to a local area network through an appropriate hub or router. Also set the FS4 IP address in the menus, and then use a computer to test (ping) the FS4 over the network connection to verify communication. For details, see "Networking" on page 28.
- Install a web browser on the computer, if not already present, for accessing the FS4 web pages. You can access the pages simply by entering the FS4 IP address in the browser address field. See "Web Browser Control" on page 30.
- Connect the FS4 to system audio and video sources, including VTRs, monitors, DVD players, video switchers, and audio mixers. For details, see "System Cabling" on page 32
- Test the FS4 with all of your devices to verify everything is working.
Shipping Box Contents
An FS4 chassis is shipped with two AC power cords and any late-breaking news bulletins (if applicable). Chassis rackmount brackets are provided as part of the chassis with screws.
As you unpack the shipping box, carefully examine the contents. Ensure you received everything and that nothing was damaged during shipment. If you find any damage, immediately notify the shipping service and supply them with a complete description of the damage. AJA will repair or replace damaged items.
If you find shipping damage, contact your AJA dealer or distributor for details on how to have your FS4 repaired or replaced.
NOTE: Save packing materials and the shipping box. If your FS4 ever requires service or you move your system, use the packaging materials and box for safe shipment.
Installing Optional SFP I/O Modules
The optional AJA SFP I/O modules are purchased separately from the FS4. Install the optional SFP I/O modules by inserting them into the rectangular cages on the back panel with the electrical connectors facing downward. Press gently but firmly until the modules seat in the inside connectors.
You must remove any connected fiber or coaxial cables from the SFP modules before you remove the modules from the FS4. Pull down the SFP lever to free the module before you withdraw the module from the cage.
For additional installation and operation details, see the instructions provided with the SFP modules.
FS4 Chassis Installation
The following information will help you install the FS4 chassis correctly.
Physical Requirements for Mounting the Chassis
You can mount the FS4 chassis in two ways:
- Rackmounting—attach the FS4 (rear or front mounted) to a standard 19-inch wide equipment rack. The chassis occupies only one vertical rack unit.
- Desktop—lay it on a horizontal flat surface.
Chassis Dimensions
When planning the equipment location, consider the chassis dimensions:
• Height—1 rack unit, 1.75 inches (4.5 cm)
• Depth—16 inches (40.65 cm)
• Width—17.5 inches (44.45cm)
• Weight—7.85 pounds, 3.56 kilograms
Cabling and Cooling Requirements
Observe these precautions when placing your FS4:
- Plan adequate space for cable routing from the back of the chassis. Ensure that cable connectors are not stressed and cables are not bent or crimped.
- When rack mounting or stacking multiple FS4 chassis, ensure adequate airspace for cooling around the FS4 units. Note the location of cooling vents on all equipment next to the FS4 and ensure none are obstructed.
NOTE: FS4 units can be stacked vertically without limit as long as there is an adequate supply of cool air around the FS4 side vents.
Power Requirements
The FS4 requires the following input voltage and power.
- Input Voltage—Chassis: autosensing 100VAC to 240VAC, 50/60Hz, fully redundant with both power supplies diode isolated.
• Power Consumption—55 Watts (70 Watts maximum)
Networking
You can network the FS4 directly to a laptop or other desktop computer using a single Ethernet cable (straight or cross-over), or connect it to a local area network (LAN). In either case, the FS4 connects via its 10/100/1000 Base-TX Ethernet connector. A LAN is a shared network that includes other Ethernet devices all attached via a hub or digital switch. LANs may be divided into zones separated by software or hardware routers. Routers may also be used to connect the LAN to an outside wide area network (WAN) such as the internet.
Devices on a LAN have IP addresses which may be fixed and permanent or dynamically assigned by the network (DHCP). When attaching the FS4 to a LAN, talk to your network administrator to find out how they want it connected (static IP or DHCP). Your IT department will be able to supply the information you need to install the FS4 on a LAN.
FS4 Default Network Settings
The FS4 ships from the factory set for DHCP networking, and can be manually reset to the following default network settings:
IP Address 192.168.0.2
Subnet Mask 255.255.255.0
Gateway 192.168.0.1
The following topics discuss two ways to set up the unit to communicate over a TCP/IP network connection: via DHCP or via a static IP address.
Networking Using DHCP or Default Static IP
The FS4 factory default configuration automatically looks for a DHCP server to issue an IP address. If your network includes a DHCP server, plug the FS4 into the network and connect with the unit as follows:
- Press the CONFIG button.
- Turn the SELECT knob to navigate to config parameter 3.2. Note on a piece of paper the DHCP-supplied IP address shown.
- With your laptop or desktop computer connected to the same LAN as the FS4 and DHCP enabled, launch a web browser, type the IP address you noted on the FS4's display into the browser address field and press Enter. You should now see the FS4's browser Status screen.
If the FS4 cannot get an IP address from the network DHCP server, the FS4 will automatically use a preset factory static IP address of 192.168.0.2. You can access the FS4 using the default static address as follows:
- Set your computer's IP address to whatever address you prefer in the 192.168.0 (class C) network.
- Set the computer's Subnet mask to 255.255.255.0 (most PCs default to the proper netmask when the address is set).
- Set the gateway address, if used, to match the FS4 default: 192.168.0.1. Alternatively, change the FS4 gateway address to match your gateway:
A. Press CONFIG, turn SELECT to 3.4 Default Gateway, push and then turn ADJUST to change the first group of digits.
B. Turn SELECT to advance to the next set of numbers, and turn ADJUST to set these numbers.
C. Continue using SELECT and ADJUST to set the full address.
D. When finished, push ADJUST momentarily to save the address.
- Run a browser on the computer and type "192.168.0.2" (the factory static IP address). You should now see the FS4's browser status screen.
When you can access the FS4 screens, see "Browser Remote Control" on page 96 for details about configuring the FS4 using a browser.
Networking the FS4 Using Your Own Static IP
If you don't want to use DHCP or the default static IP address, you can set your own static IP address:
- Select the CONFIG button and use the SELECT knob to navigate to parameter 2.1 IP CONFIG. Use the ADJUST knob to select Static.
-
Turn SELECT to navigate to parameter 3.2 IP ADDRESS. The display shows the default static IP address: 192.168.0.2.
-
Change the IP address as follows.
A. Push the ADJUST knob momentarily so that the first octet (set of numbers) blinks, and then turn ADJUST to change the numbers.
B. Turn SELECT to advance to the next set of numbers, and turn ADJUST to set these numbers.
C. Continue using SELECT and ADJUST to set the full address.
D. When finished, push ADJUST momentarily to save the address.
-
Turn SELECT to advance to 3.3 Subnet Mask. Use the SELECT and ADJUST knobs as in the previous step to set the desired subnet mask.
-
Turn SELECT to advance to 3.4 Default Gateway. Use the SELECT and ADJUST knobs as in the previous step to set the desired gateway address.
-
Run a browser on the computer and type in the IP address you set for the FS4. You should now see the FS4's Status screen.
When you can access the FS4 screens, see "Browser Remote Control" on page 96 for details about configuring the FS4 using a browser.
Using Ping to Test the Network Connection
If you have connected the FS4 to a computer and set up the IP address and still do not see the FS4 screens in your browser, you can ping the network to verify the connection. Simply run the Ping utility from a Mac OS X or Windows PC computer attached directly or on the same LAN as the FS4 as described below:
Mac Ping Procedure
- Find the Utilities Folder inside of the Applications Folder.
- Locate the "Terminal" utility application and double-click it.
- On the FS4, select the STATUS button and go to System Status menu (with the FS4 name) to read the unit's currently configured IP address.
NOTE: The STATUS menu always shows the FS4's current IP address. The IP address on the CONFIG menu is a database entry, which occasionally may not be the address the unit is using. - At the Mac terminal prompt, enter ping and the IP address noted in Step 3 above. For example: ping 192.168.0.2 (and press Return).
- If successful, the ping utility will respond that packets were sent, received and how long it took. For example: 64 bytes from 192.168.0.2: icmp_seq=0 ttl=64 time=0.590 ms
- If unsuccessful, check the FS4 network settings and resolve the problem with your IT administrator.
Windows PC Ping Procedure
- From the Start button, select the All Programs menu.
- Select Accessories/Command Prompt from the All Programs list.
- On the FS4, select the STATUS button and go to System Status menu (with the FS4 name) to read the unit's currently configured IP address.
NOTE: The STATUS menu always shows the FS4's current IP address. The IP address on the CONFIG menu is a database entry, which occasionally may not be the address the unit is using. - In the PC Command Prompt utility, enter ping and the IP address noted in step 3. For example: ping 192.168.0.2 (and press Return)
- If successful, the ping utility will respond that packets were sent, received and how long it took. For example: 64 bytes from 192.168.0.2: icmp_seq=0 ttl=64 time=0.590 ms
- If unsuccessful, check the FS4 network settings and resolve the problem with your IT administrator.
Web Browser Control
To control the FS4 from a web browser on a network attached computer, enter the FS4 IP address as a URL in the browser. For example, if the FS4 IP address were "90.0.6.31", you would then type into the web browser: http://90.0.6.31. This topic is explained in greater detail in Chapter 5: Browser Remote Control.
NOTE: The webUI (browser GUI) will keep up with most changes initiated at the front panel. However, the webUI may not reconnect (displays "Disconnected") when network changes are initiated at the FS4 front panel. To manually reconnect, type the new IP address into the browser, or click the browser Refresh button. Sometimes the browser caches the old FS4 address. If you can't get the browser to connect, try clearing the Browser history to clear the cache, and then enter the new address again.
Software Update Installation
Although the FS4 comes from the factory pre-installed with software, it may not be as up-to-date as software posted on the AJA website. This topic describes the steps required to update the software in your AJA FS4.
Download the Latest Software
Current and past releases of FS4 software are available on the World Wide Web from AJA's website. To get the software, point your browser to the FS4 support page, which will contain helpful FS4 information and links to the updates.
https://www.aja.com/en/family/fs
Once you're at the update page, you can select FS4 software files to download to your Mac or PC for upgrading your local FS4 machine.
Unpack the Software
FS4 software update files are "ZIP" files that you can open with a number of standard and third party file compression applications. The software image that you'll install on the FS4 is a file with a name like FS4_ver_1.0.0.0.bin or similar.
NOTE: Depending on your PC or Mac operating system settings, the ".bin" extension may not be visible to you in a file directory.
Uploading and Installing the Software to the FS4
Uploading and installing the software update requires a PC or Mac that can "see" the FS4 via its Ethernet connection. Follow this procedure to install the software:
- Point your browser at the FS4's upgrade page by clicking on the Firmware link at the bottom of the navigation box on the left-hand side of any FS4 web page. The FS4 web pages are discussed in Chapter 5.
Figure 6. Update Firmware Browser Screen

- Click the Browse... button to find and select the downloaded file. For example: FS4_ver_1.0.0.10.bin contained in the file downloaded from AJA.
- Click OK when asked if you want to Upload Firmware. The file uploads to the FS4 and is tested for validity. Incomplete, corrupted, or non-FS4 files are rejected. Wait for the procedure to complete—it will take only a few minutes. Progress bars show upload progress.
- Click Commit Uploaded Firmware when prompted after the upload is finished. Progress bars show progress as the file is written to flash memory.
-
Click Restart FS4 with New Firmware to restart the FS4. This will take the FS4 offline for a minute or two. During the restart, progress is shown in the connection area in the upper right corner of the FS4 Status screen. After restart, the FS4 will be running the new software.
-
Once these steps are complete, the FS4 will be running the software, and the Software Version on the Status screen shows the new version number. Check that the new software is running by bringing up the FS4 web page again; the software version is displayed at the top of all FS4 web screens. If the FS4 did not update successfully, run through the update steps again.
NOTE: The configuration of the FS4 prior to the upgrade is preserved. The unit returns to service exactly as it was before the upgrade.
If there is a power outage or glitch during the software download, the FS4 will boot the older software version and you can restart the upgrade process. This happens because the FS4 has been designed with a safety feature where an internal "safe" copy of the previous software is retained in the event the updating process fails.
System Cabling
System Video/Audio Cable Connections
When installing your system, you'll make video and audio input/output connections. These connectors are explained individually in Chapter 2.
Four Channel Mode Configuration Examples
In Four Channel Mode each Video Processor can receive a different video signal and independently process that signal. All incoming embedded audio, even on inputs not routed to a Video Processor, are disembedded and sent to the Audio Processor.
NOTE: In the following examples, U, V, W, X, Y, and Z represent different complete signals, which may be carried on one or more connectors.
Four Channel Mode Input Examples
Figure 7. Four Channel Mode, Four BNC Inputs

flowchart
graph LR
A["Signal W"] --> B["SDI In 1 BNC (w Embedded Audio)"]
C["Signal X"] --> D["SDI In 2 BNC (w Embedded Audio)"]
E["Signal Y"] --> F["SDI In 3 BNC BNC (w Embedded Audio)"]
G["Signal Z"] --> H["SDI In 4 BNC (w Embedded Audio)"]
B --> I["HD/SD Video Processor 1"]
D --> J["HD/SD Video Processor 2"]
F --> K["HD/SD Video Processor 3"]
H --> L["HD/SD Video Processor 4"]
I --> M["All incoming embedded audio is disembedded and sent to Audio Processor"]
J --> M
K --> M
L --> M
M --> N["SDI In 5 SFP"]
M --> O["SDI In 6 SFP"]
M --> P["SDI In 7 SFP"]
M --> Q["SDI In 8 SFP"]
Figure 8. Four Channel Mode, Four SFP Inputs

flowchart
graph LR
A["SDI In 1 BNC"] --> X1["All incoming embedded audio is disembedded and sent to Audio Processor"]
B["SDI In 2 BNC"] --> X2["All incoming embedded audio is disembedded and sent to Audio Processor"]
C["SDI In 3 BNC"] --> X3["All incoming embedded audio is disembedded and sent to Audio Processor"]
D["SDI In 4 BNC"] --> X4["All incoming embedded audio is disembedded and sent to Audio Processor"]
E["Signal W"] --> F["SDI In 5 SFP (w Embedded Audio)"]
G["Signal X"] --> H["SDI In 6 SFP (w Embedded Audio)"]
I["Signal Y"] --> J["SDI In 7 SFP (w Embedded Audio)"]
K["Signal Z"] --> L["SDI In 8 SFP (w Embedded Audio)"]
F --> M["HD/SD Video Processor 1"]
H --> N["HD/SD Video Processor 2"]
J --> O["HD/SD Video Processor 3"]
L --> P["HD/SD Video Processor 4"]
Figure 9. Four Channel Mode, BNC and SFP Inputs

flowchart
graph LR
A["Signal W"] --> B["SDI In 1 BNC (w Embedded Audio)"]
B --> C["HD/SD Video Processor 1"]
D["Signal X"] --> E["SDI In 2 BNC (w Embedded Audio)"]
E --> F["HD/SD Video Processor 2"]
G["Signal Y"] --> H["SDI In 5 SFP (w Embedded Audio)"]
H --> I["HD/SD Video Processor 3"]
J["Signal Z"] --> K["SDI In 7 SFP (w Embedded Audio)"]
K --> L["HD/SD Video Processor 4"]
M["All incoming embedded audio is disembedded and sent to Audio Processor"]
N["SDI In 8 SFP"] --> O["X"]
P["SDI In 6 SFP"] --> Q["X"]
R["SDI In 3 BNC"] --> S["X"]
T["SDI In 2 BNC"] --> U["X"]
V["SDI In 4 BNC"] --> W["X"]
Figure 10. Four Channel Mode, Dual Link Inputs

flowchart
graph LR
A["Signal W"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC (w Embedded Audio)"]
D["Signal X"] --> E["SDI In 3 BNC (w Embedded Audio)"]
D --> F["SDI In 4 BNC (w Embedded Audio)"]
G["Signal Y"] --> H["SDI In 5 SFP (w Embedded Audio)"]
G --> I["SDI In 6 SFP (w Embedded Audio)"]
J["Signal Z"] --> K["SDI In 7 SFP (w Embedded Audio)"]
J --> L["SDI In 8 SFP (w Embedded Audio)"]
B --> M["HD/SD Video Processor 1"]
C --> N["HD/SD Video Processor 2"]
E --> O["HD/SD Video Processor 3"]
H --> P["HD/SD Video Processor 4"]
K --> Q["All incoming embedded audio is disembedded and sent to Audio Processor"]
L --> Q
M --> Q
N --> Q
O --> Q
P --> Q
Q -.-> R["Output"]
For Dual Stream input, two independent video image signals are transported over a single link (SDI-A and SDI-B). Each video image requires a separate Video Processor, so a total of two Dual Stream signals can be received for processing. Sixteen channels of embedded audio can be carried on each video signal, so up to 64 embedded audio channels can be routed to the FS4 Audio Processor.
Figure 11. Four Channel Mode, Dual Stream Inputs

flowchart
graph TD
A["Signal Y Dual Stream"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC"]
A --> D["SDI In 3 BNC"]
A --> E["SDI In 4 BNC"]
F["Signal Z Dual Stream"] --> G["SDI In 5 SFP (w Embedded Audio)"]
F --> H["SDI In 6 SFP"]
F --> I["SDI In 7 SFP"]
F --> J["SDI In 8 SFP"]
B --> K["SDI-A"] --> L["HD/SD Video Processor 1"]
C --> M["SDI-B"] --> N["HD/SD Video Processor 2"]
D --> O["SDI-A"] --> P["HD/SD Video Processor 3"]
E --> Q["SDI-B"] --> R["HD/SD Video Processor 4"]
G --> S["All incoming embedded audio is disembedded and sent to Audio Processor"]
I --> S
J --> S
Four Channel Mode Output Examples
In Four Channel Mode each Video Processor can output a different processed video signal. Depending on configuration, output signals can be duplicated on additional available output connectors.
The video output signal from each Video Processor can also carry embedded audio on the first link of that signal. When video signals are duplicated, the first link of that duplicated video signal will also carry that same embedded audio.
Figure 12. Four Channel Mode, Single Link Outputs

flowchart
graph TD
A["HD/SD Video Processor 1"] --> B["SDI Out 1 BNC (w Embedded Audio)"]
A --> C["SDI Out 2 BNC (w Embedded Audio)"]
A --> D["SDI Out 3 BNC (w Embedded Audio)"]
A --> E["SDI Out 4 BNC (w Embedded Audio)"]
A --> F["SDI Out 5 SFP (w Embedded Audio)"]
A --> G["SDI Out 6 SFP (w Embedded Audio)"]
A --> H["SDI Out 7 SFP (w Embedded Audio)"]
A --> I["SDI Out 8 SFP (w Embedded Audio)"]
B --> J["Signal W"]
C --> K["Signal X"]
D --> L["Signal Y"]
E --> M["Signal Z"]
F --> N["Signal W"]
G --> O["Signal X"]
H --> P["Signal Y"]
I --> Q["Signal Z"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#ccf,stroke:#333
style D fill:#ccf,stroke:#333
style E fill:#ccf,stroke:#333
style F fill:#ccf,stroke:#333
style G fill:#ccf,stroke:#333
style H fill:#ccf,stroke:#333
style I fill:#ccf,stroke:#333
Figure 13. Four Channel Mode, Dual Link Outputs

flowchart
graph LR
A["HD/SD Video Processor 1"] --> B["SDI Out 1 BNC (w Embedded Audio)"]
A --> C["SDI Out 2 BNC"]
D["HD/SD Video Processor 2"] --> E["SDI Out 3 BNC (w Embedded Audio)"]
D --> F["SDI Out 4 BNC"]
G["HD/SD Video Processor 3"] --> H["SDI Out 5 SFP (w Embedded Audio)"]
G --> I["SDI Out 6 SFP"]
J["HD/SD Video Processor 4"] --> K["SDI Out 7 SFP (w Embedded Audio)"]
J --> L["SDI Out 8 SFP"]
B --> M["Signal W"]
E --> N["Signal X"]
H --> O["Signal Y"]
K --> P["Signal Z"]
style A fill:#f9f,stroke:#333
style D fill:#f9f,stroke:#333
style G fill:#f9f,stroke:#333
style J fill:#f9f,stroke:#333
For Dual Stream output, video images from two Video Processors can feed a single output connector, so two different Dual Stream signals can be output. A Dual Stream signal carries two video images (SDI-A and SDI-B).
The FS4 can also be configured to route only the Dual Stream SDI-A or SDI-B video image signal to an output connector.
Sixteen channels of embedded audio can be carried on each video signal, so each Dual Stream output can carry up to 32 embedded audio channels.
Figure 14. Four Channel Mode, Dual Stream Outputs

flowchart
graph TD
A["HD/SD Video Processor 1"] -->|SDI-A| B["SDI Out 1 BNC (w Embedded Audio)"]
A -->|SDI-B| C["SDI Out 2 BNC (w Embedded Audio)"]
D["HD/SD Video Processor 2"] -->|SDI-B| E["SDI Out 3 BNC (w Embedded Audio)"]
F["HD/SD Video Processor 3"] -->|SDI-A| G["SDI Out 4 BNC (w Embedded Audio)"]
H["HD/SD Video Processor 4"] -->|SDI-B| I["SDI Out 5 SFP (w Embedded Audio)"]
I --> J["SDI Out 6 SFP (w Embedded Audio)"]
K["SDI Out 7 SFP (w Embedded Audio)"] --> L["Signal Z Dual Stream (SDI-A + SDI-B)"]
M["SDI Out 8 (w Embedded Audio)"] --> N["Signal Z Dual Stream (SDI-A + SDI-B)"]
B --> O["Two different Dual Stream outputs each duplicated four times"]
C --> O
E --> O
G --> O
I --> O
L --> O
N --> O
Figure 15. Four Channel Mode, Four Conversions

flowchart
graph TD
A["Signal W 270Mb SD 525i"] --> B["HD/SD Video Processor 1"]
C["Signal X 1.5G HD 1080i"] --> D["HD/SD Video Processor 2"]
E["Signal Y 3G 2K"] --> F["HD/SD Video Processor 3"]
G["Signal Z Dual Link 3G 2K"] --> H["HD/SD Video Processor 4"]
B --> I["SDI Out 1 BNC (w Embedded Audio)"]
D --> J["SDI Out 2 BNC (w Embedded Audio)"]
F --> K["SDI Out 3 BNC (w Embedded Audio)"]
H --> L["SDI Out 4 BNC"]
H --> M["SDI Out 5 SFP (w Embedded Audio)"]
H --> N["SDI Out 6 SFP (w Embedded Audio)"]
I --> O["Signal W Output Up Convert to 1.5G HD 720p"]
J --> P["Signal X Output Down Convert to 270Mb SD 525i"]
K --> Q["Signal Y Output Down Convert to 3G HD 1080p"]
L --> R["Signal W Output Up Convert to 1.5G HD 720p"]
M --> S["Signal X Output Down Convert to 270Mb SD 525i"]
N --> T["Signal Z Output Down Convert to 1.5G HD 1080p"]
U["All incoming embedded audio is disembedded and sent to Audio Processor"] -.-> H
Table 2. FS4 Menu Settings for Figure 15.
| Channel Select Button | Video Button | Menu Name | Setting |
| VID1 INPUT 1 Input SDI1 | |||
| VID1 | FORMAT | 1 Output Format | 720p 5994 |
| VID1 FORMAT 2.0 Link Cfg | SDI1 Sngl Link LvlA | ||
| VID2 INPUT 1 Input SDI2 | |||
| VID2 | FORMAT | 1 Output Format | 525i 5994 |
| VID2 FORMAT 2.0 Link Cfg | SDI1 Sngl Link LvlA | ||
| VID3 INPUT 1 Input SDI1 | |||
| VID3 | FORMAT | 1 Output Format | 1080P 5994 |
| VID3 FORMAT 2.0 Link Cfg | SDI1 Sngl Link LvlA | ||
| VID4 | INPUT | 1 Input | SDI7/8 DualLink |
| VID4 | FORMAT | 1 Output Format | 1080P 5994 |
| VID4 FORMAT 2.0 Link Cfg | SDI1 Sngl Link LvlA |
Figure 16. Four Channel Mode, Dual Stream Inputs Separated

flowchart
graph TD
A["Signal U Dual Stream"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC"]
A --> D["SDI In 3 BNC"]
A --> E["SDI In 4 BNC"]
F["Signal V Dual Stream"] --> G["SDI In 5 SFP (w Embedded Audio)"]
F --> H["SDI In 6 SFP"]
F --> I["SDI In 7 SFP"]
F --> J["SDI In 8 SFP"]
B --> K["SDI-A"]
C --> L["SDI-B"]
D --> M["SDI-B"]
E --> N["SDI-B"]
G --> O["SDI-A"]
H --> P["SDI-B"]
I --> Q["SDI-B"]
J --> R["SDI-B"]
K --> S["HD/SD Video Processor 1"]
L --> T["HD/SD Video Processor 2"]
M --> U["HD/SD Video Processor 3"]
N --> V["HD/SD Video Processor 4"]
O --> W["SDI Out 1 BNC (w Embedded Audio)"]
P --> X["SDI Out 2 BNC (w Embedded Audio)"]
Q --> Y["SDI Out 3 BNC (w Embedded Audio)"]
R --> Z["SDI Out 4 BNC (w Embedded Audio)"]
S --> AA["Signal W (SDI-A only)"]
T --> AB["Signal X (SDI-B only)"]
U --> AC["Signal Y (SDI-B only)"]
V --> AD["Signal Z (SDI-A only)"]
W --> AE["Signal W (SDI-A only)"]
X --> AF["Signal X (SDI-B only)"]
Y --> AG["Signal Y (SDI-B only)"]
Z --> AH["Signal Z (SDI-A only)"]
AA --> AI["Dual Stream input videos separated and routed to different connectors, with each signal duplicated once"]
AB --> AI
AC --> AI
AD --> AI
AE --> AI
AF --> AI
AG --> AI
AH --> AI
AI --> AJ["All incoming embedded audio is disembedded and sent to Audio Processor"]
Table 3. FS4 Menu Settings for Figure 16.
| System Button Menu Name Setting | |||
| VIDEO 4.1 SDI1 3G Detect Dual Stream | |||
| VIDEO 4.2 SDI2 Input Protect Dual Stream | |||
| Channel Select Button | Video Button | Menu Name | Setting |
| VID1 INPUT 1 Input SDI1 | |||
| VID1 | FORMAT | 1 Output Format | Follow Input |
| VID1 | FORMAT | 2.0 Link Cfg SDI1 | Sngl Link LvlA |
| VID2 | INPUT | 1 Input | SDI2 |
| VID2 | FORMAT | 1 Output Format | Follow Input |
| VID2 | FORMAT | 2.0 Link Cfg SDI1 | Sngl Link LvlA |
| VID3 | INPUT | 1 Input | SDI6 |
| VID3 | FORMAT | 1 Output Format | Follow Input |
| VID3 | FORMAT | 2.0 Link Cfg SDI1 | Sngl Link LvlA |
| VID4 | INPUT | 1 Input | SDI5 |
| VID4 | FORMAT | 1 Output Format | Follow Input |
| VID4 | FORMAT | 2.0 Link Cfg SDI1 | Sngl Link LvlA |
Single Channel Mode Configuration Examples
Single Channel Mode has one 4K/UltraHD Video Processor, and all incoming video is routed to that processor. All incoming embedded audio, even on inputs not routed to the Video Processor, are disembedded and sent to the Audio Processor.
Figure 17. Single Channel Mode, 1-4 Quad Link BNC Input

flowchart
graph TD
A["Signal Z"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC (w Embedded Audio)"]
A --> D["SDI In 3 BNC (w Embedded Audio)"]
A --> E["SDI In 4 BNC (w Embedded Audio)"]
B --> F["4K/UHD Video Processor"]
C --> F
D --> F
E --> F
G["SDI In 5 SFP"] --> H["X"]
I["SDI In 6 SFP"] --> J["X"]
K["SDI In 7 SFP"] --> L["X"]
M["SDI In 8 SFP"] --> N["X"]
O["All incoming embedded audio is disembedded and sent to Audio Processor"]
Figure 18. Single Channel Mode, 5-8 Quad Link SFP Input

flowchart
graph TD
A["SDI In 1 BNC"] --> X1["×"]
B["SDI In 2 BNC"] --> X2["×"]
C["SDI In 3 BNC"] --> X3["×"]
D["SDI In 4 BNC"] --> X4["×"]
X1 --> E["All incoming embedded audio is disembedded and sent to Audio Processor"]
X2 --> E
X3 --> E
X4 --> E
E --> F["4K/UHD Video Processor"]
G["SDI In 5 SFP (w Embedded Audio)"] --> F
H["SDI In 6 SFP (w Embedded Audio)"] --> F
I["SDI In 7 SFP (w Embedded Audio)"] --> F
J["SDI In 8 SFP (w Embedded Audio)"] --> F
F --> G
Figure 19. Single Channel Mode, Dual Link Input

flowchart
graph LR
A["Signal Z"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC (w Embedded Audio)"]
A --> D["SDI In 3 BNC"]
A --> E["SDI In 4 BNC"]
A --> F["SDI In 5 SFP"]
A --> G["SDI In 6 SFP"]
A --> H["SDI In 7 SFP"]
A --> I["SDI In 8 SFP"]
B --> J["4K/UHD Video Processor"]
C --> J
D --> J
E --> J
F --> J
G --> J
H --> J
I --> J
J --> K["All incoming embedded audio is disembedded and sent to Audio Processor"]
Figure 20. Single Channel Mode, Dual Stream Input

flowchart
graph TD
A["Signal Z Dual Stream"] --> B["SDI In 1 BNC (w Embedded Audio)"]
B --> C["SDI-A"]
B --> D["SDI-B"]
C --> E["4K/UHD Video Processor"]
D --> F["Only one of the Dual Streams is routed to the Video Processor"]
G["SDI In 2 BNC"] --> H["X"]
I["SDI In 3 BNC"] --> J["X"]
K["SDI In 4 BNC"] --> L["X"]
M["SDI In 5 SFP"] --> N["X"]
O["SDI In 6 SFP"] --> P["X"]
Q["SDI In 7 SFP"] --> R["X"]
S["SDI In 8 SFP"] --> T["X"]
U["All incoming embedded audio is disembedded and sent to Audio Processor"]
Single Channel Mode Output Examples
In Single Channel Mode, depending on configuration, output signals can be duplicated on additional available output connectors.
The video output signal from the Video Processor can also carry embedded audio on the first link of that signal. When video signals are duplicated, the first link of that duplicated video signal will also carry that same embedded audio.
Figure 21. Single Channel Mode, Quad Link Outputs

flowchart
graph TD
A["4K/UHD Video Processor"] --> B["SDI Out 1 BNC (w Embedded Audio)"]
A --> C["SDI Out 2 BNC"]
A --> D["SDI Out 3 BNC"]
A --> E["SDI Out 4 BNC"]
A --> F["SDI Out 5 SFP (w Embedded Audio)"]
A --> G["SDI Out 6 SFP"]
A --> H["SDI Out 7 SFP"]
A --> I["SDI Out 8 SFP"]
B --> J["Signal Z"]
C --> K["Signal Z"]
D --> L["Signal Z"]
E --> M["Signal Z"]
F --> N["Signal Z"]
G --> O["Signal Z"]
H --> P["Signal Z"]
I --> Q["Signal Z"]
Figure 22. Single Channel Mode, Single Link Outputs

flowchart
graph TD
A["4K/UHD Video Processor"] --> B["SDI Out 1 BNC (w Embedded Audio)"]
A --> C["SDI Out 2 BNC (w Embedded Audio)"]
A --> D["SDI Out 3 BNC (w Embedded Audio)"]
A --> E["SDI Out 4 BNC (w Embedded Audio)"]
A --> F["SDI Out 5 SFP (w Embedded Audio)"]
A --> G["SDI Out 6 SFP (w Embedded Audio)"]
A --> H["SDI Out 7 SFP (w Embedded Audio)"]
A --> I["SDI Out 8 SFP (w Embedded Audio)"]
B --> J["Signal Z"]
C --> K["Signal Z"]
D --> L["Signal Z"]
E --> M["Signal Z"]
F --> N["Signal Z"]
G --> O["Signal Z"]
H --> P["Signal Z"]
I --> Q["Signal Z"]
style B fill:#f9f,stroke:#333
style C fill:#f9f,stroke:#333
style D fill:#f9f,stroke:#333
style E fill:#f9f,stroke:#333
style F fill:#ccf,stroke:#333
style G fill:#ccf,stroke:#333
style H fill:#ccf,stroke:#333
style I fill:#ccf,stroke:#333
Figure 23. Single Channel Mode, Dual Link Outputs

flowchart
graph TD
A["4K/UHD Video Processor"] --> B["SDI Out 1 BNC (w Embedded Audio)"]
A --> C["SDI Out 2 BNC"]
A --> D["SDI Out 3 BNC (w Embedded Audio)"]
A --> E["SDI Out 4V"]
A --> F["SDI Out 5 SFP (w Embedded Audio)"]
A --> G["SDI Out 6 SFP"]
A --> H["SDI Out 7 SFP (w Embedded Audio)"]
A --> I["SDI Out 8 SFP"]
B --> J["Signal Z"]
C --> K["Signal Z"]
D --> L["Signal Z"]
E --> M["Signal Z"]
F --> N["Signal Z"]
G --> O["Signal Z"]
H --> P["Signal Z"]
I --> Q["Signal Z"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#ccf,stroke:#333
style D fill:#ccf,stroke:#333
style E fill:#ccf,stroke:#333
style F fill:#cfc,stroke:#333
style G fill:#cfc,stroke:#333
style H fill:#cfc,stroke:#333
style I fill:#cfc,stroke:#333
style J fill:#ffc,stroke:#333
style K fill:#ffc,stroke:#333
style L fill:#ffc,stroke:#333
style M fill:#ffc,stroke:#333
style N fill:#ffc,stroke:#333
style O fill:#ffc,stroke:#333
style P fill:#ffc,stroke:#333
style Q fill:#ffc,stroke:#333
style R fill:#ffc,stroke:#333
style S fill:#ffc,stroke:#333
Because Single Channel Mode has only one Video Processor, two different video output images cannot be created. When configured for Dual Stream output in Single Channel Mode, the SDI-B portion of the output signal will either have no video, or will be a copy of the SDI-A stream (Figure 24 on page 40).
Figure 24. Single Channel Mode, Dual Stream Outputs

flowchart
graph TD
A["4K/UHD Video Processor"] --> B["Only 1 input signal. If the source is Dual Stream it will be either SDI-A or SDI-B."]
B --> C1["SDI Out 1 BNC (w Embedded Audio)"]
B --> C2["SDI Out 2 BNC (w Embedded Audio)"]
B --> C3["SDI Out 3 BNC (w Embedded Audio)"]
B --> C4["SDI Out 4 BNC (w Embedded Audio)"]
C1 --> D1["Signal Z Dual Stream (SDI-A)"]
C2 --> D2["Signal Z Dual Stream (SDI-A)"]
C3 --> D3["Signal Z Dual Stream (SDI-A)"]
C4 --> D4["Signal Z Dual Stream (SDI-A)"]
C1 --> E1["SDI Out 5 SFP (w Embedded Audio)"]
C2 --> E2["SDI Out 6 SFP (w Embedded Audio)"]
C3 --> E3["SDI Out 7 SFP (w Embedded Audio)"]
C4 --> E4["SDI Out 8 SFP (w Embedded Audio)"]
E1 --> F["Signal Z Dual Stream (SDI-A)"]
E2 --> F
E3 --> F
E4 --> F
E1 --> G["Eight copies of the same signal on all outputs"]
E2 --> G
E3 --> G
E4 --> G
Single Channel Mode Conversion Examples
Figure 25. Single Channel Mode, Down Conversion

flowchart
graph TD
A["Signal Z Quad Llink UHD 3840x2160"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC (w Embedded Audio)"]
A --> D["SDI In 3 BNC (w Embedded Audio)"]
A --> E["SDI In 4 BNC (w Embedded Audio)"]
B --> F["4K/UHD Video Processor"]
C --> F
D --> F
E --> F
F --> G["SDI Out 1 BNC (w Embedded Audio)"]
F --> H["SDI Out 2 BNC (w Embedded Audio)"]
F --> I["SDI Out 3 BNC (w Embedded Audio)"]
F --> J["SDI Out 4 BNC (w Embedded Audio)"]
F --> K["SDI Out 5 SFP"]
F --> L["SDI In 6 SFP"]
F --> M["SDI In 7 SFP"]
F --> N["SDI In 8 SFP"]
G --> O["Signal Z Down Convert to 1.5G HD 1080i"]
H --> P["Signal Z Down Convert to 1.5G HD 1080i"]
I --> Q["Signal Z Down Convert to 1.5G HD 1080i"]
J --> R["Signal Z Down Convert to 1.5G HD 1080i"]
K --> S["Signal Z Down Convert to 1.5G HD 1080i"]
L --> T["Signal Z Down Convert to 1.5G HD 1080i"]
M --> U["Signal Z Down Convert to 1.5G HD 1080i"]
N --> V["Signal Z Down Convert to 1.5G HD 1080i"]
O --> W["Eight copies of the same signal on all outputs"]
P --> W
Q --> W
R --> W
S --> W
T --> W
U --> W
V --> W
W --> X["All incoming embedded audio is disembedded and sent to Audio Processor"]
Table 4. FS4 Menu Settings for Figure 25 on page 41.
| Channel Select Button | Video Button | Menu Name | Setting |
| VID1 INPUT 1 Input 1-4 QuadLink | |||
| VID1 | FORMAT | 1 Output Format | 1080i5994 |
| VID1 FORMAT 2.0 Link Cfg | SDI1 Sngl Link LvlA | ||
Figure 26. Single Channel Mode, Up Conversion

flowchart
graph LR
A["Signal Z 1.5G HD 1080i"] --> B["SDI In 1 BNC (w Embedded Audio)"]
B --> C["4K/UHD Video Processor"]
C --> D["SDI Out 1 BNC (w Embedded Audio)"]
C --> E["SDI Out 2 BNC"]
C --> F["SDI Out 3 BNC"]
C --> G["SDI Out 4 BNC"]
D --> H["Signal Z Up Convert to Quad Link UHD"]
E --> I["Two copies of the same signal on the BNC and SFP outputs"]
F --> J["Signal Z Up Convert to Quad Link UHD"]
G --> K["Up to 16 channels of embedded audio is disembedded and sent to Audio Processor"]
L["SDI In 2 BNC"] --> M["×"]
N["SDI In 3 BNC"] --> O["×"]
P["SDI In 4 BNC"] --> Q["×"]
R["SDI In 5 SFP"] --> S["×"]
T["SDI In 6 SFP"] --> U["×"]
V["SDI In 7 SFP"] --> W["×"]
X["SDI In 8 SFP"] --> Y["×"]
Table 5. FS4 Menu Settings for Figure 26 on page 41.
| Channel Select Button | Video Button | Menu Name | Setting |
| VID1 INPUT 1 Input SDI1 | |||
| VID1 | FORMAT | 1 Output Format | UHD2160p5994 |
| VID1 FORMAT 2.0 Link Cfg | SDI1 QuadLink LvIA |
Using the SDI (BNC) and HDMI Monitor Outputs
To support the widest range of monitoring devices, the FS4 provides both an SDI (BNC) and an HDMI Monitor output connector. These connectors support up to 2Kp 60 video, with embedded audio.
These two connectors output the same signal in Four Channel and Single Channel Modes. For example if the monitored output is HLG, the SDI and HDMI Monitor outputs will also be HLG. In addition, the HDMI Monitor output signal carries HDR metadata, so HDR capable HDMI displays will show accurate colors. In Four Channel Mode, these outputs can be assigned to monitor any one of the four FS4 channels. In Single Channel Mode, a 4K/UltraHD signal is automatically down-converted to 2K/HD on the monitor outputs. This permits easy confidence monitoring of an FS4 output on an HD display.
In Enhanced Single Channel Mode (4K/UltraHD input and output), the signals sent to the SDI (BNC) Monitor output and the HDMI Monitor output can be different. The HDMI output is the same as above, being a down-converted version of the FS4's main output. In this mode, however, you can configure the SDI (BNC) Monitor output to be a different down-converted format. For example:
- If you are creating a live UltraHD program, you can configure the SDI Monitor output to also deliver a 1080i or 720p signal.
Using SFPs for Monitoring
Additional monitoring solutions are available with the FS4 when using optional SFPs for additional SDI outputs.
- When delivering a 4K/UltraHD output in Single Channel mode, the FS4 can be equipped with optional SFPs to provide a second 12G-SDI or quad-link 3G-SDI 4K/UltraHD output. This output can be used to feed a 4K SDI monitor.
- You can provide four channel monitoring when in Four Channel mode. By using the SFPs to provide an additional four outputs, each channel will have a second SDI output for monitoring.
GPI Connections
The FS4 has four GPI inputs and four GPI outputs. The GPI inputs and outputs are electrically isolated from the power and ground on the FS4 frame. Electrical isolation is provided for up to four pieces of external equipment.
See "GPI Pinouts" on page 125 for information on how to wire the GPI connector to work with external devices that you want to use to control the FS4 or that you want the FS4 to control.
Stand Alone Tests
The stand alone tests can be performed without a computer, using the FS4 front panel controls and rear connections. The following procedures assume the FS4 is at factory defaults (taken from a newly opened box). If not set to defaults, the FS4 may behave differently.
NOTE: FS4 units are configured at the factory to operate in Four Channel Mode.
First Power Up
The following workflow powers up a default FS4 and demonstrates some example alarms.
Setup
- Ensure the FS4 is completely disconnected (all video, audio, network, and power connector ports are empty).
Procedure
- Connect both FS4 power cords to mains AC and allow time for the unit to boot up. Observe the front panel LEDs.
- The REF LED will light red, indicating an alarm condition. By default the FS4 is configured to operate genlocked to an external reference signal.
- Press the front panel STATUS button, then turn the SELECT knob to view various Status menus.
- The Status menu for Video Processor 1 will report No Input for IN1, the port is disconnected), and the GEN (Genlock) parameter will report Ref (configured for external reference) but will also report No Input.
Video Format Status screen Video Format Alarm Status screen
| IN1 SDI 1 No InputBKGD Black 1080i59GEN Ref No InputOUT1 1080i59 | IN1 SDI 1 OKBKGD Black OKGEN Ref No RefRate 59/29/23 |
- Connect a 1080i59.94 HD tri-level sync reference signal to one of the FS4 Ref Loop BNCs, and connect a 75 ohm terminator to the other Ref BNC.
- The REF LED will light blue, indicating the FS4 is genlocked to reference.
- The Status menu GEN parameters will report Ref and indicate the format of the incoming reference signal or OK.
- However, because the FS4 is still not receiving a compatible video input, No Input, will be reported for IN1.
Video Format Status screen Video Format Alarm Status screen
| IN1 SDI 1 No Input | IN1 SDI 1 OK | ||||
| BKGD | Black | 1080i59 | BKGD | Black | OK |
| GEN | Ref | 1080i59 | GEN | Ref | OK |
| OUT1 | 1080i59 | Rate | 59/29/23 | ||
- Connect a 1080i59.94 SDI video source to the SDI 1 input BNC.
- The front panel will report 1080i59 and an OK status for SDI 1. This indicates no alarm condition exists.
Video Format Status screen Video Format Alarm Status screen
| IN1 SDI 1 1080i59 | IN1 SDI 1 OK | ||||
| BKGD | Black | 1080i59 | BKGD | Black | OK |
| GEN | Ref | 1080i59 | GEN | Ref | OK |
| OUT1 | 1080i59 | OUT1 | 1080i59 | ||
- Disconnect one of the power cords, leaving the other attached.
- The front panel PWR LED will light red for the power supply with the removed cord.
• The PS status will report PS1 (or 2) OFF.
- Reconnect the power cable. The PWR LED for that power supply will light blue and the power supply status will report OK.
This workflow confirms the FS4 powers up successfully and reports reference and power supply alarms.
NOTE: FS4 Reference, Power Supply, and Video Format alarms can be disabled, if desired. This will prevent the LEDs from going red, but will not affect SNMP or front panel status displays.
FS4 Processing Examples
About FS4 Operating Modes
The FS4 has two operating modes.
- Single Channel Mode (4K/UltraHD) has one video processing channel capable of 4K/UltraHD video, and supports up and down-conversion between 4K/UltraHD and 2K/HD as well as SD. Single Channel Mode also has a special feature when receiving and outputting 4K or UltraHD, called Enhanced Single Channel Mode. This mode is entered automatically if the output format is set to 4K or UltraHD, and a 4K or Ultra HD input signal is detected. When the FS4 is in Enhanced Single Channel Mode it can output both 4K/UltraHD and HD/SD video simultaneously, using the SDI (BNC) Monitor Output.
- 4 Channel Mode (HD/SD) has four video processing channels capable of HD video, and each channel supports independent up and down-conversion between HD and SD video.
NOTE: A reboot is required to change to the other FS4 operating mode.
Both operating modes support pass-through of various types of High Dynamic Range (HDR) and Wide Color Gamut (WCG) video.
The appropriate FS4 operating mode should be selected first, because most parameter setting changes only affect the current operating mode.
To change the FS4 operating mode:
-
Press the CONFIG System button:
-
Select 2 FS4 Mode
-
Select either 4K/UHD or HD/SD and press ADJUST twice. The FS4 will reboot into the other operating mode.
General FS4 Setup
For any FS4 operation the following general menu items will need to be set correctly for your workflow. Some default FS4 settings may be applicable. The following items assume front panel control. Web browser control may require additional network configuration steps.
Select Single or Four Channel Mode (Reboot Required)
Config Menu: 2 FS4 Mode
- HD/SD (Four Channel mode), or 4K/UHD (Single Channel mode)
NOTE: See Step 1 on page 44 for procedure.
Select Frame Rate
Video Menu: 1 Output Frame Rate
• 59/29/23 (default), or 50/25, or 60/30/24
Select Genlock
Video Menu: 2 Genlock Source
• Reference (default), or Freerun, or SDI (n)
Configure Video Input
VID (n), INPUT Menu, 1 Input
- SDI (n) (default), or (n/n) Dual Link, or Quad Link
VID (n), COLOR Menu
- Various input color settings
Configure Video Output
VID (n), FORMAT Menu, 1 Output Format
- Follow Input (default), or Follow Ref, or (raster/frame rate)
VID (n), COLOR Menu
- Various output color settings
Additional Settings
Other more specialized settings not listed above may also apply to your workflow. Detailed information is presented elsewhere in this FS4 Installation and Operation Guide.
Dual Stream Signal Separation
The following workflow demonstrates separating two Dual Stream inputs and routing the signals to different outputs.
NOTE: In the following example, U, V, W, X, Y, and Z represent different complete signals, which may be carried on one or more connectors.
Figure 27. Four Channel Mode, Dual Stream Inputs Separated

flowchart
graph TD
A["Signal U Dual Stream"] --> B["SDI In 1 BNC (w Embedded Audio)"]
A --> C["SDI In 2 BNC"]
A --> D["SDI In 3 BNC"]
A --> E["SDI In 4 BNC"]
F["Signal V Dual Stream"] --> G["SDI In 5 SFP (w Embedded Audio)"]
F --> H["SDI In 6 SFP"]
F --> I["SDI In 7 SFP"]
F --> J["SDI In 8 SFP"]
B --> K["SDI-A"]
C --> L["SDI-B"]
D --> M["SDI-B"]
E --> N["SDI-B"]
K --> O["HD/SD Video Processor 1"]
L --> P["HD/SD Video Processor 2"]
M --> Q["HD/SD Video Processor 3"]
N --> R["HD/SD Video Processor 4"]
O --> S["SDI Out 1 BNC (w Embedded Audio)"]
O --> T["SDI Out 2 BNC (w Embedded Audio)"]
O --> U["SDI Out 3 BNC (w Embedded Audio)"]
O --> V["SDI Out 4 BNC (w Embedded Audio)"]
P --> W["SDI Out 5 SFP (w Embedded Audio)"]
P --> X["SDI Out 6 SFP (w Embedded Audio)"]
P --> Y["SDI Out 7 SFP (w Embedded Audio)"]
P --> Z["SDI Out 8 (w Embedded Audio)"]
Q --> AA["Signal W (SDI-A only)"]
Q --> AB["Signal X (SDI-B only)"]
Q --> AC["Signal Y (SDI-B only)"]
Q --> AD["Signal Z (SDI-A only)"]
style A fill:#f9f,stroke:#333
style F fill:#f9f,stroke:#333
style F fill:#f9f,stroke:#333
Table 6. FS4 Menu Settings for Figure 27.
| System Button Menu Name Setting | |||
| VIDEO 4.1 SDI1 3G Detect Dual Stream | |||
| VIDEO 4.2 SDI2 Input Protect Dual Stream | |||
| Channel Select Button | Video Button | Menu Name | Setting |
| VID1 INPUT 1 Input SDI1 | |||
| VID1 | FORMAT | 1 Output Format | Follow Input |
| VID1 FORMAT 3.0 Link Cfg | SDI1 Sngl Link LvlA | ||
| VID2 INPUT 1 Input SDI2 | |||
| VID2 | FORMAT | 1 Output Format | Follow Input |
| VID2 FORMAT 3.0 Link Cfg | SDI1 Sngl Link LvlA | ||
| VID3 | INPUT | 1 Input | SDI6 |
| VID3 | FORMAT | 1 Output Format | Follow Input |
| VID3 | FORMAT | 3.0 Link Cfg SDI1 | Sngl Link LvlA |
| VID4 | INPUT | 1 Input | SDI5 |
| VID4 | FORMAT | 1 Output Format | Follow Input |
| VID4 | FORMAT | 3.0 Link Cfg SDI1 | Sngl Link LvlA |
Overview
The FS4 is generally controlled using two different methods: (1) direct control using the front panel buttons, knobs, and display menus, (2) remote control using a web browser. This chapter describes the first, using the front panel controls, which is the most direct way to configure and use an FS4. The method using a computer is described in the next chapter. Other FS4 control methods include:
- External GPI contacts, described in various locations in this manual.
• The AJA REST interface.
FS4 Modes, System Parameters, and Video Parameters
The FS4 also operates in two distinct modes, either Four Channel Mode or Single Channel Mode.
Menu parameters settings made in one mode may or may not affect the operation of FS4 when it is set to the other mode. For example, in Single Channel Mode, setting Output Image Mapping to 2SI will not affect operations in Four Channel Mode, because that parameter only affects 4K or UltraHD formats that are not available in Four Channel mode. However, changing the IP Address Type (DHCP, Static) will affect FS4 operation in both modes regardless of the mode in which that parameter was adjusted.
In general, settings made for FS4 system operation, like IP address, Output Frame Rate, Genlock, etc. affect operation in both Four Channel and Single Channel mode. These front panel menu settings are accessed via the three System buttons (VIDEO, CONFIG, and AUDIO).
The Channel Select AES menus (and associated LEVEL and DELAY menu parameters for AES and MADI), also affect the FS4 in both operating modes. Separate MAP parameters for audio routing, however, are saved for each Video Processor, so changing mapping in one operating mode will not affect mapping in the other mode.
The Channel Select EMBED menus provide LEVEL, DELAY, and MAP menu parameters for embedded SDI audio. Because both operating modes use the same SDI inputs, adjustment to these parameters affects both modes.
Video parameter settings in the Channel Select VID1-4 menus (and associated VIDEO submenus) apply to only the current FS4 operating mode. In Four Channel Mode, each VID channel accesses separate settings for only that channel, allowing four different conversions to take place simultaneously. In Single Channel Mode, only one set of video parameters exists that apply to that single channel. Changing video parameters in Four Channel Mode will not affect any video settings stored in Single Channel Mode.
NOTE: One exception is in the REMOTE Menu Group. The Remote Control setting (Local, Remote) affects both Four Channel and Single Channel mode, but separate sets of GPI In and GPI Out settings exist for each operating mode. Single Channel Mode has only one set. Separate GPI inputs and outputs are needed for the different functionality available in these two modes.
Presets and FS4 Operating Mode
Independent sets of FS4 Presets exist for Four Channel and Single Channel mode. Forty presets are available in each mode, each can be given a different name, and storing or recalling a preset in Four Channel mode will not affect FS4 operation in Single Channel mode.

Caution! In Four Channel Mode, each Preset saves all the settings for all four channels. Storing and recalling a Preset will affect all the settings for all four channels in that mode. Care must be taken to establish a policy for the use of FS4 Presets, especially if the FS4 is operated in Four Channel mode and the different channels have different users.
NOTE: Presets can be version specific regarding backwards compatibility. For example, presets saved by an FS4 running v3.0 firmware cannot be imported to an FS4 running older firmware, because the parameters are incompatible.
Parameter Menus
The FS4 display presents five major types of menu pages:
- Status pages—present status information that cannot be changed.
- Simple parameter menus—contain a parameter number and name on line 1 and its current value setting on line 2. The line 2 value can be changed using SELECT and ADJUST. Example: Output Format.
- "Take action" parameter menus—contain a parameter number and name on line 1, and the value to "take" on line 2. A "take" prompt may appear on line 3. The line 2 value can be changed using SELECT and ADJUST, and the take or switch to the new value occurs when you press ADJUST momentarily. Examples: Preset Save/Recall.
- Multiple field parameter menus—contain a parameter number and name on line 1 and its current value setting on line 2, consisting of multiple letter or number fields that must each be set individually. The line 2 fields can be changed using SELECT and ADJUST. Example: IP Address.
- Hidden parameter menus—a “parent” menu exists that, when that parent parameter is turned on, can display “child” menus of related parameters. These child menus are hidden when the parent parameter is off. Some menu names contain a decimal (dot) number and zero, which indicates there are a group of related parameters. Example: 1.0 ProcAmp is the parent menu of the 1.1 through 1.4 child menus.
NOTE: In this chapter, menus unique to an FS4 operating mode will be indicated as (4Ch only) or (SingleCh only). Other menus are identical in both Four Channel and Single Channel modes.
STATUS Menu Group
The Status Menu Group contains a series of Status display pages that you can scroll using the SELECT knob. The various Status pages are actually just displays, not menus, since they don't include menu numbers or editable values. The ADJUST knob doesn't affect the Status Menu Group display pages.
System Status
This menu shows the FS4's System Name, IP address and mask, and version number.
| System NameIP addr valueIP Mask valueVersion value | Displays the System Name as set in Config menu 1.Shows the IP address.Shows the IP mask.Shows the software version number. |
NOTE: The STATUS menu always shows the FS4's current Ethernet settings. The parameters shown on the CONFIG Menu Group IP configuration menu may not display the values the unit is currently using.
Vid 1/2 I/O
(4Ch only) This menu shows the current primary video settings for Video Processors 1 and 2.
| IN1 Input Source FormatOUT1 Output Source FormatIN2 Input Source FormatOUT2 Output Source Format | Selected (physical) video 1 input & detected format.Selected video output 1 format & selected audio input used on output.Selected (physical) video 2 input & detected format.Selected video output 2 format & selected audio input used on output. |
Vid 3/4 I/O
(4Ch only) Same as Vid 1/2 I/O status menu, except for Video Processors 3 and 4.
Vid I/O
(SingleCh only) This menu shows the current primary video settings for Video Processor.
| IN | Input Source(s) | Format | Selected (physical) video 1-4 inputs & detected format. |
| GEN | Genlock Source | Status | Selected Genlock source and format. |
| OUT | Format | AudIn | Selected video output format & selected audio input used on output |
| Vid CC | Status | Closed Caption status |
Vid 1 Format
(4Ch only) This menu shows the current primary video settings for Video Processor 1.
| IN1 Input Source FormatBKGD Backgd SourceGEN Genlock Source FormatOUT1 Format | Selected video input source and format.Selected Background video source.Selected Genlock source and format.Selected video output format. |
Vid 2-4 Format
(4Ch only) Same as Vid 1 Format menu, except for Video Processors 2-4.
Vid 1 Alarm
(4Ch only) This menu shows the Video Processor 1 alarm status. Absence of alarm shows as OK. If selections are incompatible, the status of the affected signal shows Incompat.
| IN1 Input Source StatusBKGD Backgd Source StatusGEN Genlock Source StatusRate Status | Video input source alarm status.Selected Background video source alarm status.Selected Genlock source alarm status.System Output Frame Rate (59/29/23.98, 50/25, 60/30/24) |
Vid 2-4 Alarm
(4Ch only) Same as Vid 1 Alarm menu, except for Video Processors 2-4.
Vid Alarm
(Single Ch only) This menu shows the Video Processor 1 alarm status. Absence of alarm shows as OK. If selections are incompatible, the status of the affected signal shows Incompat.
| IN Input Source(s) StatusGEN Genlock Source StatusRate Status | Video input source alarm status.Selected Genlock source alarm status.System Output Frame Rate (59/29/23.98, 50/25, 60/30/24) |
Channel Name
Displays the user defined channel names (up to nine characters), as entered through the FS4's web interface.
| Vid 1 | Default channel name is "." (period). |
| Vid 2 | |
| Vid 3 | |
| Vid 4 |
SDI Input
This menu shows the status of all eight SDI inputs.
| Display Description | ||||
| SDI1 | Status | SDI5 | Status | Statuses for SDI inputs 1-8: (Format, No Input, No SFP) |
| SDI2 | Status | SDI6 | Status | |
| SDI3 | Status | SDI7 | Status | |
| SDI4 | Status | SDI8 | Status | |
Monitor Output
This menu shows the status of the monitor outputs (BNC and HDMI).
| Monit | Status | Output selected for monitoring (Vid1-4 Out) |
| SDI Fmt | Status | SDI monitor output format. |
| HDMI Fmt | Status | HDMI monitor output format. |
| Crop | Status | Crop status (Off, On). |
AES Input
This menu shows the status of all eight AES channel pair inputs. Each can carry a stereo digital audio signal.
| AES1 | Status | AES5 | Status | Statuses for AES inputs 1-8: (Present, No Input) |
| AES2 | Status | AES6 | Status | |
| AES3 | Status | AES7 | Status | |
| AES4 | Status | AES8 | Status |
MADI In/Out
This menu shows the status of the MADI audio inputs and outputs.
| BNC In Mode StatusBNC Out ModeFib In Mode StatusFib Out Mode | BNC input mode (56ch, 64ch), status (Present, No Input)BNC output modeFiber input mode, statusFiber output mode. |
Power/Temp Alarm
This menu shows the power supply status of the FS4 and the temperature status. If a power supply is unplugged, the display indicates PS OFF or PS Error.
| PS1 Alarm StatusPS2 Alarm StatusTmpAlarm Status | Displays the state of the PS1 power supply (OK or ERROR).Displays the state of the PS 2 power supply (OK or ERROR).Displays a temperature alarm if the FS4 overheats. |
Caption Status
(4Ch only) This menu shows what type of closed caption data is selected and whether closed caption data is present on the selected video input.
| Vid1 CC Caption Type & Presence | For Video Processors 1-4, selected caption type (SD/HD/Invalid), and presence (Detected/Not detected/Pass Thru). |
| Vid2 CC Caption Type & Presence | |
| Vid3 CC Caption Type & Presence | |
| Vid4 CC Caption Type & Presence |
REMOTE Menu Group
The REMOTE Menu Group lets you set up how you want the FS4 to be controlled. Control options include the front panel, a remote computer running a browser, and GPI inputs and outputs.
NOTE: The Remote Menu Group parameters available on the front panel interact with the browser parameters available on an attached computer, and vice versa. For example, once the Remote Control parameter is set to 'Local Only' from either the browser or front panel, all future settings will only be able to be changed from the front panel. The opposite is true if set to 'Remote Only'. However the Remote Control parameter is always available from the front panel, regardless of how it is set.
1 Remote Control
Determines whether the FS4 panel responds to controls locally from the front panel, from a network attached computer with a web browser, or both. The selected mode is indicated by the color of the REMOTE LED.
| Local + Remote (default) | Control from the front panel, a remote control panel, or a network-attached browser. The REMOTE LED lights purple. |
| Local Only | Control only from the front panel (browsers cannot change parameters). The REMOTE LED lights blue. |
| Remote Only | Control only from a network attached browser or remote control panel. The REMOTE LED lights red. |
1.1 Authentication
Enables or disables an authentication login requirement. By default this parameter is set to Disabled.
When you select Login via the front panel parameter, you must then go to the browser interface to perform a login each time you access the FS4. The browser presents the login screen first, requiring you to log in before you can access any other browser screens. The password is initially set to the default value, but you can change it using the Remote browser screen.
The default password is password.
NOTE: If authentication is used, it provides only a minimum security safeguard against unauthorized use of the FS4. The authentication mechanism is simple and does not provide robust security.
| Disabled (default) | Disables the requirement for a login password. No password is needed. |
| Login | Login is required via the web browser interface before changes can be made. After selecting Login, depending on the browser a new browser window may be necessary (i.e. just a page refresh or reload may not get rid of the login page). |
2.1–4 GPI IN 1–4 Response
Determines what happens when a GPI trigger is received at the FS4's GPI Inputs (1–4). A GPI Trigger is defined as a TTL low voltage level (0 to 0.8V with respect to its isolated ground pin). The GPI interface pinout and specifications are discussed in "GPI Pinouts" on page 125. Input video sources selected by GPI trigger remain selected until the trigger is released.

Caution! GPI Inputs can be used to trigger Presets. When you recall a Preset Configuration, the recalled preset immediately replaces the system's existing configuration. All previous settings are lost unless you have previously stored them in another preset configuration or an exported file.
In Four Channel Mode, each FS4 Video Processor can be programmed to perform an action on each of the four GPI Inputs. This means the same GPI input trigger could cause different actions on each channel. In Single Channel Mode, each GPI input can only trigger one action on that Video Processor.

Caution! In Four Channel Mode, each Preset saves all the settings for all four channels. Storing and recalling a Preset will affect all the settings for all four channels in that mode. Care must be taken to establish a policy for the use of FS4 Presets, especially if the FS4 is operated in Four Channel mode and the different channels have different users.
NOTE: In the table below, Vid
| No Action (default)PRESET 1–10Vid< n> Freeze | Performs no action.Recalls the specified PRESET configuration for the current FS4 operating mode.Freezes the current video frame at its outputs. Freezing stops when the GPI trigger is released. |
| Vid< n> SDI1 InVid< n> SDI2 InVid< n> SDI1.2 DVid< n> SDI3 InVid< n> SDI4 InVid< n> SDI3.4 DVid< n> SDI1-4 QVid< n> SDI5 InVid< n> SDI6 InVid< n> SDI5.6 DVid< n> SDI7 InVid< n> SDI8 InVid< n> SDI7.8 DVid< n> SDI5-8 Q | Selects SDI1 as the video input.Selects SDI2 as the video input.Selects Dual-Link mode as the video input.Selects SDI3 as the video input.Selects SDI4 as the video input.Selects Dual-Link mode as the video input.Selects Quad-Link mode as the video input (Single Ch only)Selects SDI5 (SFP) as the video input.Selects SDI6 (SFP) as the video input.Selects Dual-Link mode as the video input.Selects SDI7 (SFP) as the video input.Selects SDI8 (SFP) as the video input.Selects Dual-Link mode for the SDI input.Selects Quad-Link mode as the video input (Single Ch only) |
| Vid< n> ARC OffVid< n> ARC LTBXVid< n> ARC H CPVid< n> ARC PLBXVid< n> ARC V CPVid< n> ARC 14X9 | Turns Off aspect ratio conversion.Converts 16:9 anamorphic video to letterbox.Converts 16:9 anamorphic video to 4:3 standard (H crop—crops left and right edges of video).Converts 4:3 standard video to 16:9 anamorphic (pillarbox).Converts letterbox video to 16:9 anamorphic (V crop).Converts 16:9 anamorphic video to 14:9 cropped. |
| Vid< n> DC CropVid< n> DC ANAVid< n> DC 14X9Vid< n> DC AuAFDVid< n> DC LTBX | Downconverts source to cropped 4x3 picture.Downconverts source to anamorphic picture.Downconverts source to 14x9 picture.Downconverts source automatically using the best mode for the input video Active Format Description (AFD) code.Downconverts source to letterbox picture. |
| Vid< n> UC 4X3PBVid< n> UC14X9PBVid< n> UCFLSCRVid< n> UC LBFULVid< n> UC WDZMVid< n> UC CSTM | Upconverts source to 4x3 pillarbox.Upconverts source to 14x9 pillarbox.Upconverts source to full screen.Upconverts source from letterbox to full.Upconverts source to a wide zoom.Upconverts source to a Custom size. |
Interaction of Presets and GPIs
If you use a GPI input trigger to recall a preset, the recall changes the GPI IN Response setting to whatever GPI IN Response setting the preset contains. As the following examples explain, this feature offers both the power of serial recalls and the possibility of triggering a recall that changes GPI IN Response to something unintended.
Example of a Serial Recall
The advantage of using GPI IN Response with presets is that you can trigger a series or even a looping series of preset recalls. For example, suppose GPI IN 1 Response in Preset 1 is set to Preset 2, and GPI IN Response in Preset 2 is set to Preset 1. Triggering the GPI will toggle between the two presets.
Example of an Unintended Recall
Suppose you trigger GPI IN 1 while the current GPI IN 1 Response parameter is set to Preset 1. This recalls Preset 1 as expected. However, suppose Preset 1 contains a stored GPI IN 1 Response setting of No Action. If you trigger GPI IN 1 later, expecting to recall Preset 1 again, the FS4 instead performs No Action. To prevent unexpected changes in the GPI IN Response parameters, set these parameters as desired before storing presets; in the example, set GPI IN 1 to Preset 1 before you store Preset 1.
3.1-4 GPI 1-4 OUT
Determines whether certain FS4 events will generate a GPI trigger output at GPI outputs 1, 2, 3, or 4. The GPI interface pinout is presented in "GPI Pinouts" on page 125.
| No Action (default)AlarmNo VideoNo Ref | Does not trigger a GPI output regardless of event.Generates a GPI out trigger if an internal alarm condition occurs.Generates a GPI out trigger if no video is detected at the input.Generates a GPI out trigger if no video is detected at the Ref input. |
VIDEO Menu Group
The VIDEO Menu Group includes parameters for setting up various FS4 system related features (video formats, audio level standards, etc.
1 Output Frame Rate
Selects the system output video frame rate family associated with the video standard.
| 59/29/23 (default)50/2560/30/24 | Selects the desired output frame rate family. |
NOTE: Changing the Output Frame Rate selection automatically selects a new value for "1 Output Format" on page 74. Each Frame Rates selection remembers its own Output Format settings.
2 Genlock Source
Selects the source of reference video used for genlock, either automatically or explicitly.
| Reference (default)Free runInputSDI | Use the signal on the Ref connector as the genlock source.Free run mode (FS4 syncs to its own timebase, not locked to an external source)Use the selected SDI input signal as the genlock source. |
3.1 HDMI Mon 2K Crop
Selects whether to crop 2K HDMI monitor output rasters to 1920 wide (and has no effect on the SDI monitor output).
| Off (default) Crop | No cropping occurs on the Monitor Outputs. Left and right sides of the Monitor Outputs are cropped to 1920. |
3.2 HDMI RGB Range
Selects the output range for the HDMI monitor output (and has no effect on the SDI monitor output). Full allows a range of 0-255 and SMPTE limits the range to 16 to 235 (see note for details).
| Full (default) | Selects an HDMI output range of 0-255. |
| SMPTE | Selects an HDMI output range of 16-235. |
3.3 Monitor Map
(4Ch only) Selects which Video Processor output will be sent to the Monitor output. The same video and embedded audio is sent to both the BNC and HDMI connectors.
| VID1 Output (default) | Selects which Video Processor's output appears on the Monitor Outputs. |
| VID2 Output | |
| VID3 Output | |
| VID4 Output |
4.1 SDI1 3G Detect
Configures 3G operation of the SDI 1 video input.
| Auto Detect (default) | Automatically detects presence of 1080p50/60 or Dual Stream video. |
| 1080p50/60 | Configures the SDI1 input for 1080p50/60 (single) video. |
| Dual Stream | Configures SDI 1 for Dual Stream 3G video (uses SDI 1 and SDI 2 in Input Crosspoint matrix). |
Figure 28. Dual Stream 3G DEMUX Schematic

flowchart
graph LR
A["Dual Stream 3G SDI Video Input"] --> B["SDI 1 INPUT"]
B --> C["3G DEMUX"]
C --> D["SDI 1-A"]
C --> E["SDI 1-B"]
D --> F["SDI 1"]
E --> G["SDI 2"]
H["SDI 2 INPUT"] --> I["Switch controlled by SDI 1 3G Detect and SDI2 Input Protect menus"]
I --> J["SDI 2"]
style C fill:#f9f,stroke:#333
style D fill:#ccf,stroke:#333
style E fill:#ccf,stroke:#333
style F fill:#cfc,stroke:#333
style G fill:#cfc,stroke:#333
style H fill:#fcc,stroke:#333
See Figure 11 on page 34 and Figure 20 on page 39 for more information.
In Auto Detect mode, the hardware looks for SMPTE 352 Payload ID ANC data on the video inputs to determine whether there are two independent 1.5G signals (Dual Stream) or a single 1080p50/60 signal. If there is no SMPTE 352 data, the default is to assume 1080p50/60 (single), but you can manually instruct the FS4 to always assume either 1080p50/60 or Dual Stream by selecting one of those choices.
In 1080p50/60 mode, the system always assumes that the input is a single 1080p50/60 signal (even if there is SMPTE 352 data to the contrary).
In Dual Stream mode, the system always assumes that the input consists of two multiplexed independent video streams i.e. 3G-LvlB-DS (even if there is SMPTE 352 data to the contrary). The signals are demuxed as shown.
4.2 SDI2 Input Protect
This parameter allows you to protect Input SDI 2 from being taken by a Dual Stream selection made with SDI1 3G Detect above.
| Normal (default) Dual Stream | SDI2 cannot be used by Dual Stream 3G SDI video on SDI Input 1. Allows SDI2 to be used by a Dual Stream 3G SDI input present on SDI 1. |
In the Normal setting (default), the SDI 2 video signal always comes from the SDI 2 physical input. Choosing Auto Detect or Dual Stream in SDI1 3G Detect does not switch away from the physical input.
In the Dual Stream setting, the FS4 assumes both channels of Dual Stream 3G video are muxed onto a single wire at the SDI1 input. The SDI 2 video signal is then taken internally from the SDI 1 Stream B signal instead of the SDI2 In connector.
The following table shows the selections and their results. In the table, SDI1-A and SDI1-B are the two muxed streams entering the SDI1 Input.
| SDI-3G Detect Setting | SDI2 Input Protect Setting | 1 Video Input Setting | Resulting Input to Crosspoint Matrix |
| 3G-LvIB-DS signalDual Stream setting, or Auto Detect with ANC Dual Stream data | Dual Stream SDI1 SDI1-A | ||
| SDI2 SDI1-B | |||
| Normal SDI1 SDI1-A | |||
| SDI2 SDI2 | |||
| 3G-LvIA signal1080p 50/60 setting, or Auto Detect with ANC 1080p data, or Auto Detect with no ANC data | Dual Stream SDI1 SDI1 | ||
| SDI2 SDI2 | |||
| Normal SDI1 SDI1 | |||
| SDI2 SDI2 | |||
See Figure 11 on page 34 and Figure 20 on page 39 for more information.
4.3, 4.5, 4.7 SDI3/5/7 3G Detect
Configures 3G operation of the SDI 3, 5, and 7 video input, using settings similar to on page 55.
4.4, 4.6, 4.8 SDI4/6/8 Input Protect
This parameter allows you to protect Input SDI 4, 6, and 8 from being taken by a Dual Stream selection, using settings similar t"4.2 SDI2 Input Protect" on page 56.
CONFIG Menu Group
The CONFIG Menu Group includes parameters for setting up the FS4's network, system name, SNMP, alarm, and screen saver configurations.
1 System Name
This parameter defines a unique name for the FS4. This same name is used both when displaying systems via the web interface and when displaying the FS4's screen saver.
| Variable | Set the system name, up to 20 characters. Default: aja-FS4 |
Name Entry Procedure
Set the name as follows:
- Push ADJUST momentarily to enter character editing mode.
- Turn SELECT to advance the blinking cursor to each character.
- Turn ADJUST to scroll through the choices for each character. These characters are allowed: A through Z (uppercase), a through z (lowercase), numerals, hyphen (-), period (.), and space (blank). Leave the desired character selected and advance to the next one.
-
Push ADJUST to save and activate the name after all characters are defined.
-
To abandon changes before saving, push SELECT.
- To return to the default name at any time, hold down ADJUST.
NOTE: To eliminate trailing characters to shorten an existing system name, overwrite them with a hyphen (-) or space.
2 Operation Mode
Selects whether the FS4 will operate in Four Channel or Single Channel mode. Pressing the ADJUST knob at the "Change Mode?" prompt will reboot the FS4 in the other operating mode. During reboot, the display shows [Rebooting], goes dark momentarily, and then shows the percentage of progress as the system reboots. Reboot should take no longer than 90 seconds. This parameter has no default setting (is only be used to change to the other mode) and is not saved in Presets.
| HD/SD4K/UHD | After reboot the FS4 will operate in Four Channel (HD/SD) mode.After reboot the FS4 will operate in Single Channel (4K/UHD) mode. |
3.1 IP Config
Determines the type of TCP/IP network configuration used by the FS4. Consult your network administrator about how to set this value.
| DHCP (default) | Select automatic IP address assignment from the LAN DHCP server. If the FS4 cannot find a DHCP server, it fails over to the static IP address. |
| Static Addr | Assign a static IP address manually (using the following parameter menus). The FS4 factory default static IP address is 192.168.0.2. |
3.2 IP Address
Determines the static IP address used by the FS4 for TCP/IP networking. Consult your network administrator about how to set this value.
| IP Address variable | If IP Config is set to DHCP dynamic addressing (default), the IP Address is set automatically by the network's DHCP server.If IP Config is set to Static Addr, manually enter an IP address.If IP Config is set to DHCP and there is a DHCP failure, the IP address is set to the static IP address. The factory default static IP address is 192.168.0.2. |
Octet Value Entry Procedure
Set the octets (numbers between periods) values as follows:
- Push ADJUST momentarily to enter edit mode.
- Turn SELECT to select the octet you want to edit, indicated by blinking.
-
Turn ADJUST to enter the new value.
-
If you need to revert to the previous setting (undo changes), push SELECT.
- Push ADJUST momentarily to save and activate the new setting.
- If you want to revert to the default value, hold down ADJUST for 4 seconds.
3.3 Subnet Mask
Determines the subnet mask used by the FS4 for TCP/IP networking. Consult your network administrator about how to set this value.
| Subnet Mask variable Enter a subnet mask compatible with your LAN. This is only needed for Static IP configurations.If IP Config is set to DHCP, the Subnet Mask is set by the DHCP server and cannot be changed by the user.If IP Config is set to Default Addr, the default Subnet Mask is 255.255.255.0 |
3.4 Default Gateway
Determines the gateway or router used on your LAN for TCP/IP networking. Consult your network administrator about how to set this value.
Without a properly configured default gateway (whether you have a router/gateway or not), the FS4 will be unable to see other FS units on the network, although you may still be able to control this unit via a web browser. Also, without a proper gateway defined, the discovery feature on the Network web page will fail to list other FS units on the network.
Gateway Address variable Enter the address of the gateway or router used to connect the FS4 to the network. Default: 192.168.0.1
3.5 MAC Address (view only)
Selecting this parameter allows you to view the MAC address. The MAC address is a unique value associated with the FS4's internal network adapter. MAC addresses are also known as hardware addresses or physical addresses. MAC addresses uniquely identify an Ethernet adapter on a LAN.
MAC address format: MM:MM:MM:SS:SS:SS
The value is 12-digit hexadecimal, where the first half identifies the manufacturer and the second half identifies the unique serial number.
4 SNMP Enable Parameters
The following parameters are used to setup the FS4 SNMP (Simple Network Management Protocol) feature.
• 4.0 SNMP Enable
• 4.1 SNMP Trap Destination 1
• 4.2 SNMP Trap Port 1
• 4.3 SNMP Trap Destination 2
• 4.4 SNMP Trap Port 2
Refer to "Chapter 6 SNMP" on page 117 for a description of SNMP and how the FS4 supports it.
About FS4 Alarms
The following FS4 alarm parameters affect how the front panel LEDs and Web UI report error conditions. When suppressed, front panel LEDs will not light red, and the Web UI will not report that particular error status. Suppressed alarms do not affect the information reported on the FS4 front panel Status menus, and does not affect SNMP messaging.
5.1, 5.2 Power Supply 1-2 Alarm
These parameters control how the FS4 alarm responds to a power supply disconnection or failure. If the FS4 will be connected using only one power cord, you can suppress the alarm, which only changes the color of the front panel LED for the disconnected power supply.
| Normal (default) | Alarm triggers if either internal power supply experiences a failure or is disconnected from mains power. |
| Suppress | Alarm will not be triggered by a power supply failure or disconnection from power. |
6 Vid Format Alarm
(Single Ch only) When set to Normal (default), an alarm is triggered (the Channel Select LED of that video processor [VID1 - Vid4] will light red) whenever the selected input video signal format for that Video Processor is incompatible with the selected output format. You can suppress the Format Alarm if you wish.
| Normal (default) | Alarm triggers if the format of the selected input video signal is incompatible with the selected output format. |
| Suppress | Alarm will not be triggered by a format incompatibility. |
6.1-6.4 Vid1-4 Format Alarm
(4Ch only) Same as Vid 1 Format Alarm menu, except for Video Processors 1-4.
7 Reference Alarm
This parameter controls how the FS4 responds when the Video Processors has a format that is incompatible with the Reference video signal. When set to NORMAL, the alarm triggers (the REF LED on the FS4 front panel will light red) if the Reference signal is not detected or is incompatible with the processor format. You can suppress the Reference alarm is you wish.
| Normal (default) | Alarm triggers if the reference signal is not detected or is incompatible with the processor format. |
| Suppress | Alarm will not be triggered by reference errors. |
NOTE: For proper operation the Input reference signal must be stable and properly terminated using a 75-ohm terminator on either the unused loop connector or the last piece of downstream equipment to which the Ref Video is connected.
9 Screen Saver
This parameter lets you choose the menu screen saver.
| On (AJA Logo) (default)OffSystem Name | AJA logo screen saver is displayedThe screen saver is not displayed.Screen saver displays the system name. |
10 Display Intensity
Determines the brightness of the alphanumeric display and front panel LEDs.
Variable Dim or brighten the alphanumeric display and activity indicator LEDs in steps from 1 (dim) to 8 (brightest). Default: 6
11 Fan Speed
Determines the speed (and sound level) of the FS4's internal cooling fans. For long term reliability, the fan speed should be set as high as possible, only lowering the speed if fan noise is a concern. At 25C (77F) ambient temperature any speed setting (1 to 10) provides adequate cooling. At 40C (104F) ambient, a fan speed of 5 or higher is recommended. The FS4 also has built-in thermal protection that will increase the fan speed automatically if necessary.
Variable Changes the fan speed in steps from 1 (slow) to 10 (fast). Default is 10.
12 Serial Number
This parameter displays the FS4's unique serial number. Please reference this number if you contact AJA customer support.
13 Software Version
This parameter displays the FS4's software version number.
14 Reboot
This parameter lets you reboot the FS4. Press and hold in both front panel knobs simultaneously to reboot.
During reboot, the display shows [Rebooting], goes dark momentarily, and then shows the percentage of progress as the system reboots. Reboot should take no longer than 90 seconds.
AUDIO Menu Group
The following descriptions explain the AUDIO Menu Group, which allows you to make adjustments to the FS4's sample rate converters, Mix Down Modes, and some other system wide settings.
1 MADI Output Mode
This parameter controls the number of MADI channels sent to both the MADI BNC and Fiber output connectors, 64 or 56.
If the FS4 receives 56 channels and is set to output 64 channels, active silent channels 57 to 64 are added to the output. When the FS4 receives 64 channels and is set to output 56 channels, channels 57 to 64 are dropped on the output.
| 64ch (default)56ch | Sixty four audio channels selected for MADI output.Fifty six audio channels selected for MADI output. MADI output channels 57-64 will not be available. |
2.1-2.8 SDI 1-8 SRC Mode
These parameters control the use of sample rate converters for the incoming SDI embedded audio. This setting affects all 16 embedded audio channels for that SDI input, if present.
| Auto (default) | The system decides how to handle sample rate conversion. PCM uses SRC, compressed data doesn't use SRC. |
| On | Sample rate conversion is always performed on the inputs. |
| Off | Sample rate conversion is never performed on the inputs. |
In Auto mode, normal PCM audio passes through the Sample Rate Converters and gets converted, as appropriate. If any of the active input signals are non-PCM the SRC is turned off for all audio inputs.
2.9 AES SRC Mode
These parameters control the use of sample rate converters for the incoming AES audio. This setting affects all 16 AES input channels.
| Auto (default) | The system decides how to handle sample rate conversion. PCM uses SRC, compressed data doesn't use SRC. |
| On | Sample rate conversion is always performed on the inputs. |
| Off | Sample rate conversion is never performed on the inputs. |
NOTE: For SRC, all AES channels must be synchronous to AES1 (channel pair 1&2), or to the lowest numbered AES pair if AES1 is not present.
2.10 MADI BNC SRC Mode
These parameters control the use of sample rate converters for the incoming MADI BCN audio. This setting affects all 64 MADI BNC input channels
| Auto (default) | The system decides how to handle sample rate conversion. PCM uses SRC, compressed data doesn’t use SRC. |
| On | Sample rate conversion is always performed on the inputs. |
| Off | Sample rate conversion is never performed on the inputs. |
In Auto mode, normal PCM audio passes through the Sample Rate Converters and gets converted, as appropriate. If any of the active input signals are non-PCM the SRC is turned off for all audio inputs.
2.11 MADI Fiber SRC Mode
These parameters control the use of sample rate converters for the incoming MADI Fiber audio. This setting affects all 64 MADI Fiber input channels
| Auto (default) | The system decides how to handle sample rate conversion. PCM uses SRC, compressed data doesn't use SRC. |
| On | Sample rate conversion is always performed on the inputs. |
| Off | Sample rate conversion is never performed on the inputs. |
In Auto mode, normal PCM audio passes through the Sample Rate Converters and gets converted, as appropriate. If any of the active signal pairs are non-PCM the SRC is turned off for all audio inputs.
3.0 Mix Down 1 Mode
This parameter activates the Mix Down mixer, and selects either 5.1 or 7.1 mix down mode.
| Off (default)5.1 Channel7.1 Channel | Mix down feature is turned off.Selects 5.1 mix down mode.Selects 7.1 mix down mode. |
When set to 5.1 or 7.1 Channel Mode, additional menus follow that are used to select the source of the incoming multi-channel audio, adjust the level of each of the incoming channels routed to the Left and Right output channels, and adjust the level of the Left and Right output channels.
About Mix Down Mode
Multi-channel audio uses more than two speakers to represent the sound field.
NOTE: The LFE channel is not used in the stereo mix down output, but is passed through the FS4 audio routing matrix.
The Mix Down outputs are available as inputs to the FS4 audio matrix and can be mapped to any audio output.
3.1 Mix Down Input
When 5.1 Channel or 7.1 Channel is selected above, this parameter selects the source of the multi-channel audio coming into that mixer.
| SDI 1(default)SDI 2-8 | Selects the indicated source. The channel assignments are as follows.All unused channels are muted:Input Ch 1 - Left FrontInput Ch 2 - Right FrontInput Ch 3 - CenterInput Ch 4 - Left RearInput Ch 5 - Right RearInput Ch 6 - LFE (not used in mix down output)Input Ch 7 - Left Surround (mute in 5.1 mode)Input Ch 8 - Right Surround (mute in 5.1 mode) |
| Sig Gen 1KHzSig Gen 400Hz | Routes the indicates signal generator to all the active multi-channel inputs. |
| Map This parameters activates a series of related menus to map a specific input channel to each of the 5 or 7 mixer input channels. | |
3.2 - 3-8 Mix Down Input Mapping (LF, RF, CTR, LR, RR, LS, RS)
When Map is selected above, these menus permit the mapping of any FS4 audio input channel or signal generator to any of the mixer inputs (L Front, R Front, Center, L Rear, R Rear, and in 7.1 mode L Surround and R Surround). Each mixer input can also be turned Off (muted). Default setting is Off.
3.9 - 3.14 Mix Down Input Level
In Mix Down Mode, multi-channel input channels are mixed to the Left and Right output channels. The level of each input signal sent to its mixed output can be adjusted plus or minus 18 dB, in half dB increments, using these menu controls.
The default settings are set to the basic equations above, and are listed below.
| LF Level | 0 dB (unity) to Left output. |
| RF Level | 0 dB (unity) to Right output. |
| CTR Level | -3 dB from unity to both the Left and Right outputs. |
| LR Level | -3 dB from unity to the Left output. |
| RR Level | -3 dB from unity to the Right output. |
| LS Level (7.1 mode only) | -3 dB from unity to the Left output. |
| RS Level (7.1 mode only) | -3 dB from unity to the Right output. |
Figure 29. Multi-Channel 5.1 and 7.1 Speaker Positions

Multi-channel audio, typically embedded in an SDI signal, can be passed through the FS4 converter unchanged. The multi-channel sound can also be mixed down to stereo, using the two Mix Down Modules built into the FSI-X Audio Processor.
The default 5.1 to 2 ch. mix-down equation is:
- Left Ch Output = LF + (-3dB * CTR) + (-3dB * LR)
- Right Ch Output = RF + (-3dB * CTR) + (-3dB * RR)
The default 7.1 to 2 ch. mix-down equation is:
- Left Ch Output = LF + (-3dB * CTR) + (-3dB * LS) + (-3dB * LR)
- Right Ch Output = RF + (-3dB * CTR) + (-3dB * RS) + (-3dB * RR)
These default settings can be adjusted using the front panel menus or web interface.
NOTE: The LFE channel is not used in the stereo mix down output, but is passed through the FS4 audio routing matrix.
3.16 - 3.17 Mix Down Output Lft Rt Level
The level of the Left and Right mixer output signal can be adjusted plus or minus 18 dB, in half dB increments, using these menu controls. Default is 0 dB (unity).
4.0 Mix Down 2 Mode
(4Ch only) Same as Mix Down 1 Mode menu and related sub-menus, except for the Mix Down 2 mixer.
7 Mix Down Reset
Resets all of the mix down levels (five or seven input, two output) for the selected mixer to the factory defaults. Turn the ADJUST knob to select the mixer. Two mixers are available in Four Channel Mode, and only one mixer is available in Single Channel mode. After selecting a mixer, press ADJ. An "Are you sure" prompt is displayed. Pressing ADJUST again resets that mixer...
| Mix Down 1 | Resets the Mix Down 1 mixer levels to default settings. |
| Mix Down 2 (4Ch only) | Resets the Mix Down 2 mixer levels to default settings. |
8 Global Audio Output
This parameter allows routing the same source or set of sources to all the FS4 audio outputs. The rules used for Audio Out apply if the number of outputs do not match the number of inputs.
| Off (default) No Global output configuration is imposed. When Off all other AUDIO OUTPUT menus are enabled and displayed. | |
| SDI1SDI2-8 (4Ch only)AES.EBUMADI BNCMADI Fiber | The selected source channels are routed to all the FS4 audio output channels. |
| Sig Gen 1KHzSig Gen 400HzMute | The selected tone or mute is routed to every FS4 audio output channel. |
| Mix Down 1 L:RMix Down 2 L:R (4Ch only) | The stereo output of Mix Down module is routed to all the FS4 audio output channels. The Left mixer channel goes to FS4 output channel 1 and the Right mixer channel goes to output channel 2. If the output has more than two channels (i.e. embedded SDI), mute (silence) is routed to the higher numbered output channels. |
NOTE: No Global Map source is available.
| Choose a Map (default) Prompt for selecting an Output to map. | |
| SDI1SDI2-8 (4Ch only)AES.EBUMADI BNCMADI Fiber | After selecting an output, press ADJUSTto reset that output to the factory default mapping (i.e. SDI1 to SDI1, SDI2 to SDI2, etc.). |
| All Sets all outputs to their factory default mappings. | |
PRESET Menu Group
The PRESET Menu Group provides the means of saving, editing the names of, and loading FS4 presets. A preset is a set of all System, Video, Audio, and most Config parameters as they were set at the time the preset was stored.

Caution! When you recall a Preset Configuration, the recalled preset immediately replaces the system's existing configuration. All previous settings are lost unless you have previously stored them in another preset configuration or an exported file

Caution! In Four Channel Mode, each Preset saves all the settings for all four channels. Storing and recalling a Preset will affect all the settings for all four channels in that mode. Care must be taken to establish a policy for the use of FS4 Presets, especially if the FS4 is operated in Four Channel mode and the different channels have different users.
During recall, the display reads, Recalling until the recall is finished. On recall completion, the displays shows the success or failure: Recalled, Failed, or Empty. A failed or empty recall does not recall anything and leaves the FS4 as it was. (Preset registers are empty until you store something in them.)
During a store, the display reads Storing until the store is finished. On store completion, the display shows Complete or Failed. A failed store does not store anything and leaves the preset register as it was. To retry a failed store, turn SELECT to another preset number and then back to the desired preset number.
1 Factory Preset
Recalls a read-only Factory Preset.
| Factory Recall | Recalls factory values for all System, Video, Audio, and most Config parameters. Push ADJUST for four seconds to perform the recall. The display reports “Factory values” during the recall. User preferences, network settings, and existing Presets are not affected by recalling the Factory Preset. |
1.1-1.40 Presets #1-#40
These parameters let you recall, edit the name of, and store an FS4 preset configuration for the selected storage register. Forty storage registers are available.
| Preset #1–#40 | Shows the currently selected preset register number. Turn SELECT choose the desired register. Then turn ADJUST to choose Recall, Edit Name, or Store for the selected register. |
| [Preset Name] | Shows the name of the selected preset register, which can be edited. |
| Recall | Recalls that preset. Push ADJUST momentarily to perform (take) the recall. The display reports “Loading” and “Complete” during the recall. |
| Edit Name | Enables editing the name of the preset register. Push ADJUST to enable editing (blinking character), use the SELECT and ADJUST knobs to edit the name and then press ADJUST to save the edited preset register name. |
| Store | Stores the current set of all System, Video, Audio, and most Config parameters to the selected preset register. |
Video with Audio Routing
Presets can be used to coordinate audio and video routing. Store and name presets that match the desired audio inputs to each desired video input, and use those presets to select the video inputs, causing the configured audio to follow.
Interaction of Presets and GPIs
Triggering presets using GPI inputs offers considerable power but also requires some care to avoid unexpected results. If you plan to trigger presets using GPIs, please see the information about the "Interaction of Presets and GPIs" on page 53.
As described in "Operational Summary" on page 17 the VID1, VID2, VID3 and VID4 front panel buttons select a Video Processor channel. When selected, the nine Video buttons on the right are used to select a category of menus.
Table 7. Video Menu Group Buttons activated with Channel Select buttons.
| INPUT FORMAT TIMING | |
| ANC SCALE TSTGEN | |
| COLOR KEYER FREEZE | |
Single Channel Mode has one Video Processor, to which all the parameter settings in these menu groups apply. Four Channel Mode has four Video Processors. Changes to Video Select Button parameter settings only apply to the currently selected Video Processor, whose VID1-4 button will be illuminated.
INPUT Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1 Input
These parameters perform input video source selection for the Video Processor.
| SDI1 (4Ch default)SDI2-81/2, 3/4, 5/6, 7/8 DualLink1-4 Quad Link (Single Ch default)5-8 Quad Link | Select SDI1 as the input source.Selects either SDI2 through SDI8 as the input source.Selects SDI 1/2, or SDI 3/4, or SDI 5/6 or SDI 7/8 DualLink as the input source, linking both SDI inputs.(Single Ch only) Select SDI 1-4 SDI QuadLink as the input source, linking all four of the inputs(Single Ch only) Select SDI 5-8 SDI QuadLink as the input source, linking all four of the inputs. |
Source Memory
Changing the Video Input selection automatically selects new values for Proc Amp parameters and Color Corrector (RGB) parameters. Each video source remembers its own Proc Amp and Color Corrector settings. This is referred to as Source Memory.
Dual Link
Dual Link referred to here is 1080p50/59.94/60 on two 1.5 Gb HD-SDI connections, or 4K/UltraHD low frame rate video on two 3 Gb connections. Selecting Dual Link as the Video Input will allocate both SDI Inputs for Dual Link use. The SFP inputs operate the same way.
Quad Link
Quad Link referred to here is 4K/UltraHD on four 1.5 Gb HD-SDI connections, or 4K/UltraHD high frame rate video on four 3 Gb connections. Selecting Quad Link as the Video Input will allocate all four SDI Inputs for Quad Link use. The SFP inputs operate the same way.
See "System Video/Audio Cable Connections" on page 32 for more information about FS4 signal routing.
2 Loss of Input
Selects the automatic action that occurs if the video input is lost. The Black selection (default) cuts the video to black. The Freeze selection freezes video on the last available good frame.
| Black (default) | Switches to black if input video is lost. |
| Freeze | Freezes on the last available good video frame if input is lost. |
3 Reverse Telecine
This parameters can be used to control film cadence detection.
| Off (default) | Film cadence detection is disabled. This setting should remain Off unless you are processing interlaced pulldown input. |
| Auto | 3:2 pull down field removal is enabled for interlaced video sources. |
About Reverse Telecine and Film Cadence
Film cadence is a way to convert film frame rates to interlaced field rate video suitable for broadcast, commonly employed by telecine equipment when converting film to video (for example, converting from 24 frames to 60 interlaced fields, or 23.98 frames to 59.94 fields). This requires a 4/5 conversion ratio. For 3:2 pulldown cadence, the most common, two fields are duplicated for every four input frames, with a resulting 2:3:2:3 field output pattern. 3:2 pulldown outputs four fields of the original two input frames, then one duplicate field, then four more fields of the next two input frames, and then another duplicate field. This provides the smoothest motion, but results in two of the five video output frames being "dirty", having fields from different original frames. Another commonly used film cadence is 2:3:3:2, which has only one "dirty" frame but results in motion that is slightly less smooth. Many other more exotic film cadences exist, but they are rarely used.
Film cadence removal reverses pulldown (Reverse Telecine), and can turn interlaced video originally sourced from film with pulldown back to progressive frame rate video, removing the duplicated fields. This can be useful for post-production facilities that have a need to accurately re-edit this type of material.
FS4 Reverse Telecine Conditions
The FS4 converter can perform film cadence removal under the following conditions:
- Input signal must be 525i59.94, 1080i59.94 and output format selected must be p23.98 or PsF23.98, OR the input signal must be 1080i60 and output format p24 or PsF24.
- Input signal must have consistent 3:2 pulldown.
- The Reverse Telecine parameter must be set to Auto.
Under the conditions above, the FS4 will automatically identify and remove the duplicate fields, and perform motion detection and de-interlacing processing to create high quality output with clean frames.
NOTE: Approximately 10 incoming frames are required before film cadence can be detected and correctly processed. If the cadence pattern changes (for example, the source pulldown video may have been edited) that same approximately 10 frame interval is required after the discontinuity to detect and process the new cadence pattern.
4 Input Scan Format
Determines how the Deinterlacer handles interlaced vs. PsF inputs.
| Auto (default) | Deinterlacer detects input source payload ID data and sets the processing format accordingly. |
| Progressive Interlaced | Assumes all input sources are progressiveAssumes all input sources are interlaced. |
Normally, this control will only be used to indicate that a 1080PsF25 input is PsF and not interlaced.
Auto
When Auto is selected, the system will look for clues in the source's SMPTE 352 (Payload ID) data and respond accordingly. If there is no SMPTE 352 information, the system will assume that 23.98/24 fps sources are PsF, and 25/29.97/30 fps sources are interlaced.
Progressive
When Progressive is selected, the system will assume that all sources are PsF (even if there is SMPTE 352 data to the contrary).
Interlaced
When Interlaced is selected, the system will assume that all sources are interlaced (even if there is SMPTE 352 data to the contrary)
(Single Ch only) Selects the structure of the UltraHD or 4K input video. The image can be divided into four quadrants (Square Division [Quadrant] format, see SMPTE 425-3, Appendix B), or be interleaved (2 Sample Interleave [2SI] format, see SMPTE 425-5, Section 8). Two Sample Interleave video can carry VPID to identify it, but Square Division video lacks a corresponding VPID.
| Auto (default) | Automatically sets Quadrant (no VPID) or 2SI format (VPID present), depending on the input. |
| Quadrant | Interprets incoming 4K/UltraHD video as being Quadrant (Square Division) mapped. |
| 2SI | Interprets incoming 4K/UltraHD video as being 2SI (Two Sample Interleave) mapped. |
ANC Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1.1 AFD Out
These parameters determine if and where the Video Processor will insert a SMPTE 2016 Active Format Descriptor (AFD) packet into its output video. The inserted AFD code does not affect the Video Processor's conversion, but it may affect downstream video processing if the signal is later converted.
Off (default) The FS4 does not insert an AFD code into the output.
| Auto | If there is no AFD code on the input video, a “Full Frame” (8) code is inserted. If the FS4 is converting, the appropriate AFD code will be chosen based on the convert mode (see "7 Upconvert Mode" on page 78 and "8 Down Convert Mode" on page 79. |
| >16:9 | Always inserts a “Box > 16:9 (center)” AFD code (4), which indicates that the image has an aspect ratio greater than 16:9 as a vertically centered letterbox within the 16:9 frame. |
| Full Frame Always inserts a “Full Frame” AFD code (8), which indicates that the image is full frame, with an aspect ratio that is 16:9. | |
| Pillarbox Always inserts a “4:3 (center)” AFD code (9), which indicates that the image has a 4:3 aspect ratio as a horizontally center pillarbox image within the 16:9 frame. | |
| Letterbox | Always inserts a “16:9 (with complete 16:9 image protected)” AFD code (10), which indicates that the image is full frame, with a 16:9 aspect ratio and all image areas are protected. |
| 14:9 | Always inserts a “14:9 (center)” AFD code (11), which indicates that the image has a 14:9 aspect ratio as a horizontally centered pillarbox within the 16:9 frame. |
| 4:3 Alt 14:9 Always inserts a “4:3 (with alternate 14:9 center)” AFD code (13), which indicates that the image has a 4:3 aspect ratio and with an alternative 14:9 centered pillarbox image within the 16:9 frame. | |
| 16:9 Alt 14:9 Always inserts a “16:9 (with alternative 14:9 center” AFD code (14), which indicates that the image has a 16:9 aspect ratio with an alternative 14:9 center within the 16:9 frame. | |
| 16:9 Alt 4:3 Always inserts a “16:9 (with alternative 4:3 center)” AFD code (15), which indicates that the image has a 16:9 aspect ratio with an alternative 4:3 center within the 16:9 frame. | |
1.2 AFD Output Lines
Determines which video output lines have AFD VANC inserted on the output.
| 10 (default)9–42 | Adds AFD VANC to line 10.Select which line other than 10 will have AFD VANC added. |
1.3 Down Convert AFD dfl
Selects what occurs when the Downconvert Mode parameter has been set to "Auto AFD" (see "8 Down Convert Mode" on page 79 and no AFD codes are detected at the selected input source.
| Hold Last (default)CropAnamorphic14x9Letterbox | Hold the last setting.Image is cropped to fit new screen size.HD image is converted to full-screen SD with a 16x9 aspect ratio (anamorphic).Image is reduced slightly with aspect ratio preserved. Black is added top and bottom, and the left and right sides are cropped.Image is reduced with black top and bottom added to image area, with the aspect ratio preserved. |
2 Caption Xlator
This parameter translates closed captioning from the SD CEA-608 format on line 21 to the HD CEA-708 format and inserts it into the output video stream.
Off (default) When Off, caption translation is not performed.
| On When set to On, the FS4 will automatically translate incoming line21 captions to CEA-708 format and insert the VANC packets into the converted video stream. This is a complete translation from CEA-608 format to CEA-708 format (including the embedded SD captions). |
NOTE: This parameter interacts with parameter SD Line 21 Blanking, see below.
In standard definition video (525i59.94 or 625i50), closed captioning data is encoded and sent on line 21 of both fields, using a format defined by the Consumer Electronics Association standard, CEA-608. This is traditionally called "line 21", "SD", or "608" captioning, and is used for analog composite, analog component, and serial digital (SDI) video.
In high definition video, closed captioning is encoded and sent as Vertical Ancillary (VANC) packets in SDI video, using a format defined by the Consumer Electronics Association standard CEA-708 (there is no equivalent for analog HD video). This is traditionally called "HD," "DTV," or "708" captioning. The data formatting and encoding for 708 captions is very different from the data contained in 608 (SD) captioning, reflecting the added features and capabilities available with the CEA-708 standard.
When the Caption Translator is on, the FS4 Upconverter automatically translates incoming line 21 captions to CEA-708 format and inserts the VANC packets into the converted HD video stream. This is a complete translation from CEA-608 format to CEA-708 format (including the embedded SD captions).
3 SD Line 21 Blanking
Determines whether the FS4 blanks line 21 closed captioning data prior to video processing of an SD 525i video input. (Line 21 normally occurs at the top of the raster in the overscan area of video, so the presence of captioning data or blanking does not interfere with the visible SD or up-converted video.)
Blank
In Blank mode, the FS4 copies and remembers the contents of SD line 21 and then blanks those lines before transformation to ensure captioning data does not get included in the transformed video. If the Caption Xlator parameter is On, the copied caption gets translated into an HD caption and inserted into the transformed output. If the Caption Xlator parameter is Off, the output does not contain caption data. This is the setting to use if the SD input includes a caption and you want to retain it at the output (Caption Xlator must be On), or you want to blank it at the output (Caption Xlator must be Off).
Pass
In Pass mode, the FS4 does not blank line 21 of the SD video input and passes the unaltered video to the Video Processor for transformation. This is the setting to use if there is no captioning data present on line 21 of a 525i video input.
Auto Blank
In Auto Blank mode, the FS4 automatically detects presence or absence of line 21 caption data on the SD input. If no line 21 caption is present, the FS4 passes the video unaltered. If line 21 data is detected, the FS4 copies the data, blanks line 21, and reinserts translated captioning on the transformed output if the Caption Xlator parameter is On. If the Caption Xlator is Off, the output will not contain captioning. This is the setting to use if your SD input video sometimes contains captions and other times does not, or if you are uncertain which setting to use.
4 Override VPID
Video Payload Identifier (VPID) data provides a way to unambiguously set the Colorimetry and Transfer Characteristic of a video payload. This parameter allows the user to edit this data for that channel's output.
| Off (default)On | No change to VPID data.Overrides this output channel's VPID data, and displays the following two parameter menus to allow data adjustment. |
When "On" is selected above, the following two parameters are made available:
4.1 Colorimetry
Sets that channel's video output signal colorimetry data bit. Select from:
| Auto (default)BT.709BT.2020 | Automatically sets colorimetry.Standard Definition BT.709 colorspace VPID data applied.High Definition BT.2020 colorspace VPID data applied. |
4.2 Transfer Characteristic
Sets the channel's video output signal transfer characteristic data bit. Select from:
| Auto (default) | Automatically sets transfer characteristic. |
| SDR | Standard Dynamic Range VPID data applied. |
| HLG | Hybrid Log Gamma VPID data is applied. |
| PQ | Perceptual Quantization VPID data is applied. |
5 SDI Mon Override VPID
In Enhanced Single Channel Mode the format of the SDI Monitor Output display format can be independently set. This parameter can be used as above to edit that signal's VPID data.
| Off (default)On | No change to VPID data on the SDI Monitor Output signal.Overrides existing SDI Monitor Output VPID data, and displays the Colorimetry and Transfer Characteristic parameters listed above. |
6 Timecode Xlator
Beginning with v3.0 firmware, FS4 is able to handle Ancillary Timecode (ATC) packets with Timecode Xlator when performing a conversion. Previously these packets only passed-through when the FS4 was not performing a conversion. When Timecode Xlator is turned On, the FS4 will pass-through or translate LTC, VITC1, and VITC2 type ATC packets during conversion.
| Off (default) | The FS4 will perform as it did previously, by passing-through ATC packets when it is not converting, and stripping them when it is converting. |
| On | Pass-through ATC packets with or without conversion, and during conversion translate/convert LTC, VITC1 and VITC2 packets to match the target/configured Output Format. |
NOTE: For SD conversions, ATC packets are dropped and Timecode Xlator will not work.
NOTE: For HD/UltraHD to HD/UltraHD conversions, the ATC packet will only pass-through if the Timecode Xlator parameter is turned On.
NOTE: For 23.98/24Hz conversions, ATC packets will pass-through as long as the input and output frame rates match.
NOTE: Other ATC packets associated with "film" video formats are not supported.
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1.0 Proc Amp Enable (YUV)
Turns the Proc Amp On and Off for signals composed of YUV components. When it is On, you can set additional parameters to control video Gain, Black Level, Hue, and Saturation.
| Off (default)On | Sets the YUV Proc Amp to Off.Sets the YUV Proc Amp to On. |
Source Memory
Independent Proc Amp parameter values are kept for each input format.
1.1 Proc Amp Gain
This parameter adjusts the video gain from 0 to 1.5 times luma in 0.01 steps
| Variable Adjusts Proc Amp | Gain from zero to 1.5 in 0.01 steps. |
| Default (unity): 1.0 |
1.2 Proc Amp Black
This parameter adjusts the video black level from -20 IRE to +20 IRE in 0.5 steps.
| Variable Adjusts Proc Amp | Black level from -20 IRE to +20 IRE in 0.5 steps. |
| Default (unity): 0 IRE |
1.3 Proc Amp Hue
This parameter adjusts the video color hue through 360 degrees (color wheel) in 1 degree steps.
| Variable Adjusts Proc Amp | Hue from -179 to +180 in steps of 1 degree. |
| Default (unity): 0 degrees |
1.4 Proc Amp Sat
This parameter adjusts the video color saturation from black and white to 1.5 times chroma in steps of 0.01.
| Variable Adjusts Proc Amp | Saturation from 0 (black & white) to 1.5 (Chroma) in steps of 0.01. |
| Default: 1.0 |
2.0 Color Corrector (RGB)
Turns the RGB Color Corrector On and Off. When it is On, you can set additional parameters to control RGB video Gain, Black Level, and Gamma. When set to Off, all RGB Color Corrector settings are programmed for unity (or bypass).
| Off (default)On | Sets the RGB Color Corrector to Off.Sets the RGB Color Corrector to On, enabling the following Color Corrector parameters. |
Source Memory
Independent RGB Color Correct parameter values are kept for each input format.
2.1 CC Red Gain
This parameter adjusts the RGB Red Gain.
| Variable Adjusts Red Gain from zero to 1.5 in 0.01 steps.Default (unity): 1.0 |
2.2 CC Red Black Level
This parameter adjusts the RGB Red Black level.
| Variable Adjusts Red Black level from -20 IRE to +20 IRE in 0.5 steps.Default (unity): 0 IRE |
2.3 CC Red Gamma
This parameter adjusts the RGB Red Gamma.
| Variable Adjusts Red Gamma level from -1.0 to +1.0 in 0.01 steps.Default (unity): 0 |
2.4 - 2.6 CC Green
This set of parameters adjusts the Gain, Black Level, and Gamma for color Green, same as CC Red described above.
2.7-2.9 CC Blue
This set of parameters adjusts the Gain, Black Level, and Gamma for color Blue, same as CC Red described above.
16.0 Video Legalizer
These parameters allow adjustment of signal levels to meet legal broadcast requirements. When set to Off, the Video Legalizer is not enabled, and the following clip controls are not active. In YUV mode, the White Clip, Black Clip, and Chroma Clip controls are enabled and clip any luma/chroma that exceed the set limits.
| Off (default) | Disables the Video Legalizer. |
| YUV | Enables the Video Legalizer to clip YUV to legal levels. |
| RGB | Enables the Video Legalizer to clip RGB to legal levels. |
16.1 Legalizer White Clip
This parameter limits the white level so that it does not exceed the adjusted limit. Limit can be set from +80 IRE to +120 IRE.
Variable Adjusts white clip level from +80 IRE to +120 IRE in 0.5 steps. Default (unity): 100 IRE
16.2 Legalizer Black Clip
This parameter limits the black level to the adjusted limit. Limit can be set from -10 IRE to +20 IRE.
Variable Adjusts black level limit from -10 IRE to +20 IRE in 0.5 steps. Default (unity): 0 IRE
16.3 Legalizer Chroma Clip
When the Video Legalizer mode is YUV, this parameter limits the maximum chroma level to the adjusted limit. The limit can be set from +60% to +140%.
Variable Adjusts chroma clip level from +60% to +140% in 0.5 steps. Default (unity): 100 IRE
FORMAT Menu Group
1 Output Format
Defines the output format of the Video Processor. Available choices depend on the frame rate selection.
Follow Input (default)
Follow Ref
Match the output format to the incoming video format. Match the output format to the current Reference input. Select this format and frame rate as the output format.
Output Format Selection Constraint
Available frame rates depend on the "1 Output Frame Rate" on page 54 parameter setting.
Output Timing Memory
Changing the Output Format selection automatically selects new values for H & V timing parameters (see "1 Output Frame Rate" on page 54. Each Output Format mode remembers its own H and V timing settings.
The Output Format selection is remembered for each of the frame rates. If you change the Output Frame Rate ("1 Output Frame Rate" on page 54), the Output Format setting associated with the newly selected frame rate is recalled.
See "System Video/Audio Cable Connections" on page 32 for more information about FS4 signal routing.
1.1 SDI Monitor Format
In Enhanced Single Channel mode (4K or UltraHD input and output), the SDI Monitor output can be configured to act as a second down-converted channel. The SDI Monitor output can be set to any of the following formats (frame rate depends on configured Reference family):
• (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30
• (HD) 1920 x 1080i 50, 59.94, 60
• (HD) 1280 x 720p 50, 59.94, 60
• (SD) 625i 50
• (SD) 525i 59.94
The Follow setting in Enhanced Single Channel mode forces the SDI Monitor output format configuration to follow the format of the main output. For example, if the main output is UltraHDp29.97, the SDI Monitor output will be 1920x1080p29.97.
| Follow (default) | The SDI Monitor output format configuration follows the configuration of the main output. |
| Select the format and frame rate for the down-converted SDI Monitor output. |
In Four Channel or Single Channel Mode this parameter is not available. In those modes the SDI Monitor output is controlled by the Format and the Color DynamicRange&Gamut settings of the main output.
3.0 Link Config SDI1, 2, 3, 4
(4Ch only) These parameters determine how 1080p50/60 signal transport is configured for the Video Processor output BNC connectors. The menu names and parameters available depend on the currently selected Video Processor. For example, if Video Processor 1 is selected, the menu title will be 2.0 Link Cfg SDI1 identifying the primary output BNC connector used by that Video Processor. For Video Processor 2 the menu title will be 2.0 Link Cfg SDI2, etc.
| Sngl Link LvlA (default)Dual Link | Sets the output transport to 3Gb Level A (single connector).Sets the output transport to 1.5Gb Dual Link (two connectors, ST 372). |
| Sngl Link LvlB | Sets the output transport to 3Gb Level B-DL (single connector).When Level B is selected a sub menu becomes available to choose the Video Processor(s). |
3.1 Level B SDI1, 2, 3, 4
(4Ch only) When Single Link Level B has been selected above, the parameters on the menu below become available for the selected Video Processor.
| VID1 Vid1 (default)Vid1 + Vid 2 | Selects only the Vid 1 Processor signal for output.Select both the Vid1 and Vid2 Processor signals for output (Dual Stream). |
| VID2 Vid2 (default)Vid1 + Vid 2 | Selects only the Vid 2 Processor signal for output.Select both the Vid1 and Vid2 Processor signals for output (Dual Stream). |
| VID3 Vid3 (default)Vid3 + Vid 4 | Selects only the Vid 3 Processor signal for output.Select both the Vid3 and Vid4 Processor signals for output (Dual Stream). |
| VID4 Vid4 (default)Vid3 + Vid 4 | Selects only the Vid 4 Processor signal for output.Select both the Vid3 and Vid4 Processor signals for output (Dual Stream). |
Figure 30. Dual Stream 3G MUX Schematic

flowchart
graph TD
A["HD/SD Video Processor 1"] --> C["3G MUX"]
B["HD/SD Video Processor 2"] --> D["3G MUX"]
C --> E["SDI 1 OUTPUT"]
D --> F["SDI 2 OUTPUT"]
See Figure 14 on page 35 for more information.
3.0 Link Config SDI1-4
(Single Ch only) These parameters determine how 1080p50/60 signal transport is configured for the Video Processor output BNC connectors.
| QuadLnk Lvl A (default) | Sets the output transport to Quad Link Level A (four connectors). |
| QuadLnk LvlB | Sets the output transport to Quad Link Level B-DL (four connectors). |
| Sngl Lnk LvlA | Sets the output transport to 3Gb Level A (single connector). |
| Dual Link | Sets the output transport to 1.5Gb Dual Link (two connectors) |
| Sngl Lnk LvlB | Sets the output transport to 3Gb Level B-DL (single connector). |
See "Single Channel Mode Output Examples" on page 39.
4.0 Link Config SDI5-8
(Single CH only) These parameters determine how 1080p50/60, 6Gb, and 12Gb signals are formatted for the Video Processor SFP output ports.
| QuadLnk Lvl A (default) QuadLnk Lvl B | Sets the output transport to Quad Link Level A (four connectors). Sets the output transport to Quad Link Level B-DL (four connectors). |
| Sngl Lnk LvlA | Sets the output transport to 3Gb, 6Gb, or 12Gb Level A (single connector). |
| Dual Link | Sets the output transport to 1.5Gb or 3Gb Dual Link (two connectors) |
| Sngl Lnk LvlB | Sets the output transport to 3Gb Level B-DL (single connector). |
NOTE: 6Gb and 12Gb signal output requires compatible SFP modules.
See "Single Channel Mode Output Examples" on page 39.
5 Output Image Mapping
(Single Ch only) Sets the structure of the UltraHD or 4K output video. The image can be divided into four quadrants (Square Division [SQD] format, see SMPTE 425-3, Appendix B), or interleave (2 Sample Interleave [2SI] format (see SMPTE 425-5, Section 8).
| Quadrant (default)2SI | The output is Quadrant format (Square Division).The output is Two Sample Interleave format. The front panel 2SI LED will light when selected. |
6 SD Aspect Ratio
Selects the type of SD-to-SD Aspect Ratio Conversion (ARC) performed on an incoming selected SD source input. This parameter has an effect only when the input and output are both SD (525i or 625i).
| Off (default)LetterboxH CropPillarboxV Crop14x9 | No ARC conversion will be performed.Selects the indicated ARC conversion. |
Figure 31. SD Aspect Ratio Conversion Illustrations

flowchart
graph LR
A["4:3 Converts To These displays on 4:3"] --> B["Off (no conversion)"]
B --> C["Letterbox"]
C --> D["H Crop"]
D --> E["Pillarbox"]
E --> F["V Crop"]
F --> G["14:9"]
7 Upconvert Mode
These parameters select the type of upconversion the Video Processor performs on the selected input. This parameter has an effect only when the input has a narrower aspect ratio than the output (SD > HD, HD > 2K). When converting from 2K, the selections do not precisely describe the resulting picture. For example, 4x3 pillar is not precisely 4x3, and 14x9 is not precisely 14x9. However, picture scaling is such that the visual effect closely resembles an SD-to-HD upconvert.
| 4x3 Pillar (default)14x9 PillarFull ScreenLB to FullWide Zoom | Results in 4x3 image at center screen with black sidebars.Results in 14x9 image, zoomed slightly to fill a 14x9 image with sidebars.Anamorphic full screen display.Image is zoomed to fit the full screen (letterbox).Using a combination of zoom and stretch, the image is sized to fit a 16x9 screen (this can introduce a small aspect ratio change). |
NOTE: Any Custom Size/Pos values (only available in Four Channel Mode) will be applied on top of this settings.
Figure 32. Upconvert Illustrations

flowchart
graph LR
A["4:3 Upconverts To These displays on 16:9"] --> B["Full Screen"]
B --> C["4:3 Pillar"]
C --> D["LB to Full"]
D --> E["14:9 Pillar"]
E --> F["Wide Zoom"]
8 Down Convert Mode
These parameters select the type of down conversion the Video Processor performs on the selected input. This parameter has an effect only when the input has a wider aspect ratio than the output (HD > SD, 2K>HD). When down converting from 2K, the selections do not precisely describe the resulting picture. For example, 14x9 is not precisely 14x9. However, picture scaling is such that the visual effect closely resembles an HD-to-SD downconvert.
| Crop (default)Anamorphic | Image is cropped to fit new screen size.HD image is converted to full-screen SD with a 16x9 aspect ratio (anamorphic). |
| 14:9 | Image is reduced slightly with aspect ratio preserved. Black is added top and bottom, and the left and right sides are cropped. |
| Auto AFD | Automatically selects the best Downconvert mode based on the input video's Active Format Description (AFD) code. If the input video is not carrying an AFD VANC code, the Downconverter defaults to the mode specified in the Downconvert AFD Dflt menu. With this selection any Custom Size/Pos settings and Region Of Interest settings are ignored. |
| Letterbox | Image is reduced with black top and bottom added to image area, with the aspect ratio preserved. |
NOTE: Any Custom Size/Pos values (only available in Four Channel Mode) will be applied on top of this settings.
NOTE: Any Custom Size/Pos values (only available in Four Channel Mode) will be applied on top of this settings EXCEPT when Downconvert Mode is set to Auto AFD.
Figure 33. Downconvert Illustrations

AFD and Conversion
Active Format Description (AFD) codes are carried in the vertical ancillary (VANC) portion of HD SDI video signals, specified in SMPTE 2016 as follows: "AFD information is intended to guide DTV receivers and/or intermediate professional video equipment regarding the display of video of one aspect ratio on a display
of another aspect ratio." Because Auto AFD mode fully defines the size, position, and aspect ratio of the output raster, any Custom Size/Pos settings and any Region Of Interest settings are ignored, and those menus are hidden. FS4 AFD processing (passing, removing, and re-inserting) occurs based on the setting of parameter "1.1 AFD Out" on page 68.
SCALE Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
Custom Conversion Settings
The custom settings determine the image size and shape for Upconvert mode if you choose the Custom selection for those modes.
Custom settings are stored separately for each Conversion Mode. Values for each of the Upconvert modes and SD Aspect Ratio modes (excluding OFF), plus no conversion (or HD CrossConvert), are independently stored.
1.0 Custom Size/Pos
Turns custom image settings On or Off. When Hide Inactive is on, the Custom Size/Position controls are only displayed when Custom Size/Pos is On. When Custom Size/Pos is Off, modified parameters are skipped in the menu system, and the UFC hardware is programmed for unity.
This menu is also not displayed when Active Format Description (AFD) is in control of the Conversion Mode.
NOTE: The Custom Size/Pos feature is not available in Single Channel Mode if both the inputs and outputs are UltraHD/4K.
| Off (default)On | Sets this parameter and related custom size/pos parameters to off.Enables this parameter and related custom size/position parameters. |
1.1 Custom Size
Changes the H and V size of the output picture by the specified percentage (%) while maintaining the current aspect ratio.
| 100% (default)10% to 200% | Maintains 100% picture size for the selected format.Enables changing the picture size. |
1.2 Custom Aspect
Changes the H/V aspect ratio of the output picture while maintaining the current V size (Aspect < 0) or H size (Aspect > 0).
| 0.000 (default) | Maintains the normal 100% aspect ratio for the selected format. |
| -0.500 to +0.500 | Enables changing the aspect ratio. |
1.3 Custom H Position
Changes the H position of the output picture.
| 0% (default) | Maintains the normal horizontal position of the selected format. |
| -100% to +100% | Enables changing the horizontal position. |
1.4 Custom V Position
Changes the V position of the output picture.
| 0% (default) | Maintains the normal 100% vertical position of the selected format. |
| -100% to +100% | Enables changing the vertical position. |
1.5 Custom Left Crop
Changes the Left picture crop position.
| 100% (default)+10.0% to +100.0% | Maintains the normal left side position of the selected format.Enables changing the left side position. |
1.6 Custom Right Crop
Changes the Right picture crop position.
| 100% (default) +10.0% to +100.0% | Maintains the normal right side position of the selected format. Enables changing the right side position. |
1.7 Custom Top Crop
Changes the Top picture crop position.
| 100% (default)+10.0% to +100.0% | Maintains the normal top position of the selected format.Enables changing the top position. |
1.8 Custom Bottom Crop
Changes the bottom picture crop position.
| 100% (default) | Maintains the normal bottom position of the selected format. |
| +10.0% to +100.0% | Enables changing the bottom position. |
Region of Interest (ROI)
The Region of Interest parameters select a portion of the input picture that will be used for scaling and/or positioning. The selected area can then be scaled to a standard pillarbox or letterbox size and shape (On Square), or it can be set to a full screen input image (On Full). On Full may cause image distortion if it is used to expand an odd-shaped region of interest to full screen.
NOTE: The ROI feature is not available in Single Channel Mode if both the inputs and outputs are UltraHD/4K.
The ROI Setup mode allows you to preview the edges of your selected Region Of Interest as you set it up. After selecting the desired region using the Setup Cursor, you can take the region to air by setting Region Of Interest to On Square or On Full.
The Setup mode is not required to operate the ROI feature. The edges of the Region Of Interest can also be adjusted while in On Square or On Full modes
2.0 Region of Interest
Turns the Region of Interest settings On or Off. When enabled, the ROI Left, Right, Top, and Bottom controls define the rectangular shape and position of the ROI.
| Off (default) Setup On Square On Full | Turns off the ROI feature. Enables ROI cursor. Enables ROI and sets video to a pillarbox or letterbox shape. Enables ROI, and expands the ROI area to full screen. |
Interactions occur between ROI settings and other parameters:
- The Region of Interest menu is not displayed when Active Format Description (AFD) is in control of the Conversion Mode.
- Custom Size and Position settings work interactively with ROI, but Custom Crop settings are disabled. Custom Size/Pos is also temporarily disabled while in the ROI Setup mode.
2.1 ROI Left
Sets the left boundary of the ROI.
| Variable (default=100%) | Sets ROI left boundary to 10-100% of full screen in 0.1% increments. For 1% increments, hold down the Video button. |
2.2 ROI Right
Sets the right boundary of the ROI.
| Variable (default=100%) | Sets ROI right boundary to 10-100% of full screen in 0.1% increments. For 1% increments, hold down the Video button. |
2.3 ROI Top
Sets the top boundary of the ROI.
| Variable (default=100%) | Sets ROI top boundary to 10-100% of full screen in 0.1% increments. For 1% increments, hold down the Video button. |
2.4 ROI Bottom
Sets the bottom boundary of the ROI.
| Variable (default=100%) | Sets ROI bottom boundary to 10-100% of full screen in 0.1% increments. For 1% increments, hold down the Video button. |
3.0 1080i Output Filter
Select On or Off. When On, displays the 1080i Output Filter Adj parameter slider below (default = Off).
3.1 1080i Output Filter Adj
A vertical filter control can improve the image quality of a 1080i Interlaced output when the source image has fine vertical detail and fast motion (like a camera pan). This feature is available when converting from 4K/UltraHD/2K/HD 23.98/29.97/59.94p to 1080i 59.94, or 4K/UltraHD/2K/HD 25/50p to 1080i50.
- Range 0 to 100, default = 0
KEYER Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1 Background Fill
Selects the background source used to fill any part of the processor output raster not filled with video from the main input video. For example, when the Video Output Mode selection is Sidebars, this parameter selects the video source for the Sidebars.
| Black (default)MatteVid 1, 2, 3, 4 (4Ch only) | Selects black as the background fill video.Selects matte as the background fill video.Select the output of another Video Processor as background fill video. |
2 Sidebar Edge
The parameter adjusts the sidebar position where the center video meets the pillarbox background video on both sides. The underlying hardware feature is the same as Custom Right Crop and Custom Left Crop. This is effectively an extra handle on the Left Crop and Right Crop parameters.
The Crop and Sidebar Edge controls are additive; increasing Sidebar Edge (making the sidebars larger and the center-video smaller), equates to setting Left and Right Crop values to smaller percentages. The Sidebar Edge can be set to 0 through +128. A value of 0 produces a 4:3 center. Positive values produce wider sidebars (and a narrower center).
| 0 (default)0 to +128 (Variable) | Defaults to 0. Select a width value from 0 through +128 to expand or shrink the sidebars, which are filled with Background video (4 Background Fill). Selecting a larger value causes the center picture to become narrower while the sidebars expand. |
3.1 Matte Luma
Determines the Matte Luma level of the background fill.
| 50% (default)0–100% (Variable) | Sets the matte luminance level to the default 50% value.Sets the matte luminance level from 0–100%. |
3.2 Matte Chroma
Determines the Matte Chroma level of the background fill.
| 50% (default)0–100% (Variable) | Sets the matte chrominance level to the default 50% value.Sets the matte chrominance level from 0–100%. |
3.3 Matte Hue
Determines the Matte Hue of the background fill.
| 0 degrees (default) | Sets the matte hue to the default 0 degrees (red). |
| 0–359 degrees (Variable) | Sets the matte hue to a value between 0 and 359 degrees. |
NOTE: On the front panel, as you turn the Matte Hue ADJUST knob the values wrap from 359 back to 0 degrees.
TIMING Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
These parameters adjust Video Processor horizontal and vertical output timing in reference to the genlock source already selected, and permits adding up to 6 full frames of output delay.
1 Maintain A/V Sync
This parameter can be used to enable a one-way link from that Video Processor channel's video timing control to its audio input delay control. When On, adjustments made to video timing are also applied to the audio input delay, so the video and audio maintain sync.
The following conditions are required for this feature to operate properly:
- Vid1 (thru 4) Audio Out must be set to SDI1 (thru 8), AES or MADI.
- Selecting Mix Down, Sig Gen, Mute or Map disables Maintain A/V Sync.
- In 4Ch mode, that Video Processor must be the "master" (see "Maintain A/V Sync with Multiple Video Processors" on page 86).
NOTE: When this parameter is turned from Off to On, the existing audio delay value for that Video Processor does NOT immediately change, but that audio delay will subsequently be offset by matching values when the video timing setting is actually changed. This helps prevent unintended audio delay shifts from occurring, but means you cannot make A/B comparisons of audio delay simply by toggling this setting On and Off. Storing and Recalling Presets can be used for A/B comparison, however.
| Off (default) | Video timing adjustments do not affect that Video Processor channel's current audio input delay setting (see Figure 34). |
| On | Video timing adjustments will also apply matching values to that Video Processor channel's current audio input delay setting (see Figure 35). |
A real world example for using this feature is to easily adjust and maintain audio sync. During video processing, video frames can be shifted in time for proper frame synchronization. Because the FS4 de-embeds audio before video processing, even if the incoming audio was originally embedded on that same incoming SDI source, the audio can become offset from the video.
The following two diagrams illustrate the FS4's Maintain A/V Sync behavior in Single Channel mode using SDI 1 input video and embedded audio. Figure 34 show FS4 behavior when Maintain A/V Sync is Off, and Figure 35 shows what happens when it is On.
Figure 34. Maintain A/V Sync Off, Single Channel Mode Example
Audio Delay Independent of Video Timing

flowchart
graph TD
A["Video with Embedded Audio"] --> B["Video Input Crosspoint Matrix and Audio De-Embedders"]
B --> C["Frame Sync"]
C --> D["4K/UltraHD VIDEO PROCESSOR"]
D --> E["Audio Embedder"]
E --> F["Video Output Drivers"]
F --> G["Video with Embedded Audio"]
G --> H["Video Output Drivers"]
H --> I["Audio Router and Mapper"]
I --> J["AES Digital Audio In"]
I --> K["MADI Out"]
B --> L["De-Embedded SDI Audio"]
L --> M["Audio Delay"]
M --> N["Audio Processor"]
N --> O["Audio Output Drivers"]
O --> P["Video Output Drivers"]
style A fill:#f9f,stroke:#333
style F fill:#ccf,stroke:#333
style I fill:#cfc,stroke:#333
Figure 35. Maintain A/V Sync On, Single Channel Mode Example
Audio Delay Linked to Video Timing

flowchart
graph TD
A["Video with Embedded Audio"] --> B["Video"]
B --> C["Frame Sync"]
C --> D["Audio Embedder"]
D --> E["Video Output Drivers"]
E --> F["Video with Embedded Audio"]
F --> G["Video Output 1"]
F --> H["Video Output 2"]
F --> I["Video Output 3"]
F --> J["Video Output 4"]
C --> K["De-Embedded SDI Audio"]
K --> L["Audio Delay"]
L --> M["Audio Processor"]
M --> N["Audio Router and Mapper"]
N --> O["AES Digital Audio In"]
N --> P["MADI In"]
style A fill:#f9f,stroke:#333
style E fill:#ccf,stroke:#333
style F fill:#cfc,stroke:#333
Audio Sync Procedure Example
One procedure to maintain audio and video sync involves following the steps below in order (alternative procedures are also effective).
- Configure your FS4 input and output routings. In this example, SDI 1 Input video is selected, SDI 1 embedded audio input is mapped as the Video 1 embedded audio output (default setting), and the combined output is sent to FS4 SDI Out 1.
- With Maintain A/V Sync OFF (Figure 34), adjust the FS4's Video 1 output timing as required for your situation.
- With Maintain A/V Sync still OFF, adjust the EMBED SDI 1 Delay to match for audio sync.
- If subsequent video timing adjustments become necessary for Video 1, turn Maintain A/V Sync ON (Figure 35) and adjust ONLY the Video timing. The audio will automatically be adjusted to match the new video timing setting.
- If for some reason audio sync shifts, but the video timing is still correct, adjust ONLY the SDI 1 Embedded Audio Delay setting to match the audio to the video. This adjustment, independent of the video timing setting, can be made with the Maintain A/V Sync setting either ON or OFF.
Understanding how these controls interact with each other will help you decide which adjustment to make, depending on your situation.
Maintain A/V Sync with Multiple Video Processors
In Four Channel mode, Maintain A/V Sync generally works the same as in Single Channel mode. However a special case occurs if audio from the same source is routed to more than one Video Processor. In this case a "master" Video Processor is required, because changing the Video Timing on both Video Processors could create conflicting Audio Delay changes for that shared audio source. In this situation, the lowest numbered Video Processor is considered the "master" and all other Video Processors will have their Maintain A/V Sync feature disabled (see Figure 36).
In the following example, AES input audio, instead of SDI 1 input embedded audio, is routed to multiple FS4 outputs. This will make each Video Processor's Video Timing adjustment behavior different, depending on which Video Processor is the master.
Figure 36. 4Ch Mode Example, Multiple Video Processors with Shared Audio

flowchart
graph TD
A["Video with Embedded Audio"] --> B["Video"]
B --> C["Video Input Crosspoint Matrix and Audio De Embedders"]
C --> D["Video"]
D --> E["Video"]
E --> F["Video Output Drivers"]
F --> G["Video Output 1"]
F --> H["Video Output 2"]
F --> I["Video Output 3"]
F --> J["Video Output 4"]
G --> K["Video Output 1"]
H --> L["Video Output 2"]
I --> M["Video Output 3"]
J --> N["Video Output 4"]
K --> O["Video Processor 1"]
L --> P["Video Processor 2"]
M --> Q["Video Processor 3"]
N --> R["Video Processor 4"]
O --> S["Audio Processor 1"]
P --> T["Audio Processor 2"]
Q --> U["Audio Processor 3"]
R --> V["Audio Processor 4"]
S --> W["Audio Processor 5"]
T --> X["Audio Processor 6"]
U --> Y["Audio Processor 7"]
V --> Z["Audio Processor 8"]
W --> AA["Audio Processor 9"]
X --> AB["Audio Processor 10"]
Y --> AC["Audio Processor 11"]
Z --> AD["Audio Processor 12"]
AA --> AE["Audio Processor 13"]
AB --> AF["Audio Processor 14"]
AC --> AG["Audio Processor 15"]
AD --> AH["Audio Processor 16"]
AE --> AI["Audio Processor 17"]
AF --> AJ["Audio Processor 18"]
AG --> AK["Audio Processor 19"]
AH --> AL["Audio Processor 20"]
AI --> AM["Audio Processor 21"]
AJ --> AN["Audio Processor 22"]
AK --> AO["Video Output Drivers"]
AL --> AP["Video Output Drivers"]
AM --> AQ["Video Output Drivers"]
AN --> AR["Video Output Drivers"]
NOTE: The lowest numbered Video Processor with shared audio maintains its Master status even if its Maintain A/V Sync setting is turned Off. In that situation other Video Processors with that shared audio will NOT be able to change audio delay using the Maintain A/V Sync feature.
2 Output Timing H
When adjusting the horizontal timing (H), this parameter specifies a number of pixels to offset, from zero to full line width. Adjustment range increments from 0 to the width of the line in pixels. The maximum value varies, depending on the format already chosen.
| Variable Adjustment range increments from 0 to the width of the line in pixels. The maximum varies, depending on the format chosen. Default: 0 |
NOTE: Unlike most knob-adjustable parameters, on the front panel menu this parameter automatically wraps from the maximum value to 0 (and vice versa).
3 Output Timing V
When adjusting the vertical timing (V), this parameter specifies a number of lines to offset, moving the screen up to a half a frame up or down.
| Variable Adjustment range | increments from half a frame up to a half a frame down in single line increments. The maximum varies, depending on the format already chosen. Default: 0 |
NOTE: Unlike most knob-adjustable parameters, on the front panel menu this parameter automatically wraps from the maximum value to 0 (and vice versa).
Output Timing Memory
Independent horizontal and vertical timing values are kept for all available output formats.
Output Timing Ranges
The table below lists the output timing ranges for various video frame rates.
Table 8. Output Timing Ranges
| Output Frame Rate | Horizontal Vertical | |||
| Min Max Min Max | ||||
| UHD23.98 0 2749 -562 562 | ||||
| UHD24 0 2749 -562 562 | ||||
| UHD25 | 0 | 2639 | -562 | 562 |
| UHD29.97 | 0 | 2199 | -562 | 562 |
| UHD50 | 0 | 2639 | -562 | 562 |
| UHD59.94 | 0 | 2199 | -562 | 562 |
| 4K1080p23.98 | 0 | 2749 | -562 | 562 |
| 4K1080p24 | 0 | 2749 | -562 | 562 |
| 4K1080p25 | 0 | 2639 | -562 | 562 |
| 4K1080p29.97 | 0 | 2199 | -562 | 562 |
| 4K1080p50 | 0 | 2639 | -562 | 562 |
| 4K1080p59.94 | 0 | 2199 | -562 | 562 |
| 1080i50 | 0 | 2639 | -562 | 562 |
| 1080i59.94, 1080i60 | 0 | 2199 | -562 | 562 |
| 1080p23.98, 1080p24 | 0 | 2749 | -562 | 562 |
| 1080p25 | 0 | 2639 | -562 | 562 |
| 1080p29.97, 1080p30 | 0 | 2199 | -562 | 562 |
| 1080p50 | 0 | 2639 | -562 | 562 |
| 1080p59.94, 1080p60 | 0 | 2199 | -562 | 562 |
| 1080psf23.98, 1080psf24 | 0 | 2749 | -562 | 562 |
| 1080psf25 0 2639 -562 562 | ||||
| 1080psf29.97, 1080psf30 | 0 | 2199 | -562 | 562 |
| 2Kx1080p23.98, 2Kx1080p24 | 0 | 2749 | -562 | 562 |
| 2Kx1080p25 | 0 | 2639 | -562 | 562 |
| 2Kx1080p29.97, 2Kx1080p30 | 0 | 2199 | -562 | 562 |
| 2Kx1080p50 | 0 | 2639 | -562 | 562 |
| 2Kx1080p59.94, 2Kx1080p60 | 0 | 2199 | -562 | 562 |
| 525i59.94, 525psf29.97 | 0 | 857 | -262 | 262 |
| 625i50, 625psf25 | 0 | 863 | -312 | 312 |
| 720p23.98, 720p24 | 0 | 4124 | -375 | 375 |
| 720p25 | 0 | 3959 | -375 | 375 |
| 720p29.97, 720p30 | 0 | 3299 | -375 | 375 |
| 720p50 | 0 | 1979 | -375 | 375 |
| 720p59.94, 720p60 | 0 | 1649 | -375 | 375 |
4 Frame Delay
This parameter adjusts Video Processor output timing.
| Variable | Adjustment output timing from 0 to 20 frames in one frame increments.Default: 0 |
NOTE: This delay amount is in addition to the FS4's default video latency. In Four Channel Mode and in Single Channel Mode with no 4K/UltraHD up or down conversion, this default latency is nominally two frames at low frame rates (23.98/24/25/29.97/30 fps) or four frames at high frame rates (50/59.94/60 fps). In Single Channel Mode with 4K/UltraHD up or down conversion being performed, this default latency is nominally 3 frames at low frame rates or 5 frames at high frame rates.
TSTGEN Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1 Test Pattern Gen
Selects whether a test pattern is output by that Video Processor.
| Off (default)On | Normal video is output (no test pattern).The output is the test pattern generator. |
NOTE: Normal output can be a version of its currently selected input, a Sidebar or Letterbox display, Black, or a Freeze of last good video, depending on the current configuration.
Selects the type of test pattern output if Test Pattern Gen is on.
| SDR Bars 75% | Sets test pattern to SDR 75% color bars. |
| SDR Bars 100% | Sets test pattern to SDR 100% color bars. |
| Black | Sets test pattern to black. |
| Flat Field | Sets test pattern to flat field gray. |
| HDR Bars PQ Narrow Range | Sets test pattern to HDR PQ Narrow Range |
| HDR Bars PQ Full Range | Sets test pattern to HDR PQ Full Range |
| HDR Bars HLG Narrow Range | Sets test pattern to HDR HLG Narrow Range |
Besides standard SDR color bars, black, and flat field (gray), three HDR Color bars are available.
- PQ narrow range
- PQ full range
- HLG narrow range
These patterns are only supported when the output format is 4Kp, UltraHDp, 2Kp, or 1080p. Note that PsF, 1080i, 720p, 625i, and 525i formats are not supported. If an HDR test pattern is selected for an unsupported output format, Flat Field will be output.
Figure 37. BT.2111 High Dynamic Range Color Bars Example

natural_image
Color swatch bar with grayscale gradient from gray to black (no text or symbols)Each of the three HDR color bars displays calibrated colors for that HDR specification. See the ITU-R BT.2111-0 standard for detailed information about these color values.
FREEZE Menu Group
IMPORTANT: In Four Channel Mode, the settings in this menu group apply only to the selected Video Processor (VID1- VID 4).
1 Freeze Output
Makes the FS4 freeze the current video frame on the Video Processor output. This may be useful either for testing or in case of loss of the input source.
| Off (default)On | Normal video is output (no freeze).The FS4 captures and freezes the most current video frame and displays it on the outputs as long as this parameter is set to On. |
NOTE: Normal output can be a version of its currently selected input, a Sidebar or Letterbox display, Black, or a Test Pattern, depending on the current configuration.
IMPORTANT: These parameters are NOT affected by the selection of Single or Four Channel Mode.
As described in "Operational Summary" on page 17 the EMBED and AES front panel buttons select categories of audio.
- EMBED selects SDI embedded audio for control. The FS4 supports 16 embedded audio channels for each video channel.
- AES selects both AES and MADI audio for control, each with their own set of parameter menus. The FS4 supports up to 16 AES channels (eight pairs), and up to 64 MADI audio channels.
When the EMBED or AES button is selected, the three Audio buttons on the right are used to select a category of parameter menus.
Figure 38. Audio Menu Group Buttons
| LEVEL |
| DELAY |
| MAP |
LEVEL Menu Group
IMPORTANT: The settings in this menu group apply to the currently selected audio category (EMBED or AES/MADI). These settings are shared with both Four Channel and Single Channel modes.
The LEVEL menus provide Level and Phase adjustments for SDI Embedded, AES, MADI BNC, and MADI Fiber input audio.
EMBED Level Menus
When EMBED is selected, the following SDI Embedded Audio menus are available.
1.0 SDI1 Level
Selects the Audio Level Mode for all 16 SDI1 audio input channels. The default Unity setting applies 0.0. db gain to all the input channels
| Unity (default) | All 16 SDI1 audio input channels are set to 0.0 dB. Individual channel adjustment menus are hidden. |
| Adjust | Each of the 16 SDI1 audio input channel adjusted values are applied to the audio processor, and the individual channel adjustment menus become available. |
When Adjust mode is selected:
- After selecting an individual channel adjustment menu, the ADJUST knob changes the value shown by 0.5 dB (up or down) for each knob detent.
- The range of adjustment is -18.0dB to +18.0dB.
- Switching from Unity to Adjust will apply the individual level values that were set in the Adjust mode to the input for each of the channels. Switching from Adjust to Unity will apply unity (0.0dB) to all channels.
1.1-1.16 SDI1 Level Ch 1
When Adjust is selected above, individual SDI 1 audio channel menus become available, permitting +/- 18.0 dB level adjustment to each input channel.
2.0-8.0 SDI2-8 Level
Same as 1.0 SDI1 Level menu, except for SDI inputs 2 through 8, and similar level adjust submenus are available.
9.0 SDI1 Phase
Selects the Audio Phase Mode for all 16 SDI1 audio input channels The default Unity setting applies normal (non-inverted) phase to all the input channels.
| Unity (default) | All 16 SDI1 audio input channels are set to Normal phase. Individual channel adjustment menus are hidden. |
| Adjust | Each of the 16 SDI1 audio input Phase values (either Normal or Invert) are applied to the audio processor, and the individual channel adjustment menus become available. |
When Adjust mode is selected:
- After selecting an individual channel adjustment menu, the ADJUST knob toggles the Phase value shown between Normal and Invert. When Invert is selected the phase of the audio input on that channel will be inverted.
Switching from Unity to Adjust will apply the individual Phase values that were set in the Adjust mode to the input for each of the channels. Switching from Adjust to Unity will apply unity (Normal) to all channels.
9.1-9.16 SDI 1 Phase
When Adjust is selected above, individual SDI 1 audio channel menus become available, permitting inverting the phase of each input channel.
10.0 - 16.0 SDI2-8 Phase
Same as 9.0 SDI1 Phase menu, except for SDI inputs 2 through 8, and similar phase adjust submenus are available.
AES/MADI Menus
When AES is selected, Level and Phase parameter menus for AES and MADI input audio are displayed. These menus are the similar to those used for Embedded Audio SDI1 Level and Phase.
1.0 AES Level
Sixteen AES Level menus (and related submenus) are available.
2.0 MADI BNC Level
Sixty four MADI BNC Level (and related submenus) are available.
3.0 MADIFIB Level
Sixty four MADI Fiber Level (and related submenus) are available.
NOTE: For level adjustment information, see "1.0 SDI1 Level" on page 90.
4.0 AES Phase
Sixteen AES Phase menus (and related submenus) are available.
5.0 MADI BNC Phase
Sixty four MADI BNC Phase (and related submenus) are available.
6.0 MADIFIB Phase
Sixty four MADI Fiber Phase (and related submenus) are available.
NOTE: For Phase adjustment information, see "9.0 SDI1 Phase" on page 91.
DELAY Menu Group
IMPORTANT: The settings in this menu group apply to the currently selected audio category (EMBED or AES/MADI). These settings are shared with both Four Channel and Single Channel modes.
The DELAY Menu Group provides delay adjustments for SDI Embedded, AES, MADI BNC, and MADI Fiber input audio. Delay adjustments are applied to audio channel pairs. Delay times are shown and entered in samples, and the value is also shown in milliseconds.
EMBED Delay Menus
When EMBED is selected, the following SDI Embedded Audio menus are available.
1.0 SDI1 Delay
Selects the Audio Delay Mode for the eight SDI1 audio input channel pairs. Delay operates on channel pairs only. Delay cannot be adjusted on any single channel. Channel pairs are grouped as: Channel 1 and 2, Channel 3 and 4,..., Channel 15 and 16. The default Global setting applies the currently set Global delay value to all eight input channel pairs. The factory default Global setting is 0 seconds delay, but whatever value the user changes this setting to will be applied when Global is selected.
| Global (default)Channel Pair | All eight SDI1 audio input channel pairs are set to the current Global delay value. Individual channel adjustment menus are hidden.Each of the eight SDI1 audio input channel pairs delay values are applied to the input of each channel pair, and the channel pair adjustment menus become available. |
When Channel Pair mode is selected:
• Each of the individual eight SDI1 audio input channel pair delay values are applied to the input delay of each channel pair.
- The range of delay is -768 to +48,000 in units of samples where 48 samples = 1 millisecond.
Switching from Global to Channel Pair will apply the individual delay values that were set for each individual channel pair. Switching from Channel Pair to Global will apply the same currently set Global delay value to all the channel pairs.
1.1 SDI 1 Delay Global
When Global is selected above, the individual SDI 1 audio channel pair menus are hidden.
| SDI 1 Delay Global The ADJUST knob sets the Global delay value. Adjustment range is -768 to +48,000 samples or -16ms to +1,000ms, where 48 samples = 1 millisecond.The Front Panel displays the delay in milliseconds and as fractions of milliseconds in units of samples. |
1.1-1.8 SDI 1 Channel Pair Delay
When Channel Pair is selected above, eight individual SDI 1 audio channel pair menus become available, permitting adjusting the delay of each input channel pair.
- Delay adjustment range is -768 to +48,000 in units of samples where 48 samples = 1 millisecond. The Front Panel displays the delay in milliseconds and as fractions of milliseconds in units of samples.
2.0 - 8.0 SDI2-8 Delay
Same as 1.0 SDI1 Delay menu, except for SDI inputs 2 through 8, and similar delay adjust submenus are available.
AES/MADI Delay Menus
When AES is selected, Delay parameter menus for AES and MADI input audio are displayed. These menus are the similar to those used for SDI Embedded Audio described above.
1.0 AES Delay
Sixteen AES Level menus (and related submenus) are available.
2.0 MADI BNC Delay
Sixty four MADI BNC Level (and related submenus) are available.
3.0 MADIFIB Delay
Sixty four MADI Fiber Level (and related submenus) are available.
NOTE: For level adjustment information, see "1.0 SDI1 Delay" on page 92.
MAP Menu Group
IMPORTANT: The settings in this menu group apply to the currently selected audio category (EMBED or AES/MADI). These settings are NOT shared with both Four Channel and Single Channel modes.
The MAP menus provide FS4 audio routing controls. Any audio input can be routed to any audio output, except the Monitor output embedded audio always matches the monitored video.
About Audio Routing
The following menus control the FS4's audio routing. The general routing procedure using the front panel is to select the menu of the audio output with the SELECT knob, and then select the input source you wish to route to that output with the ADJUST knob. Channel mapping allows different individual audio channels to be routed to different individual outputs.
See "System Video/Audio Cable Connections" on page 32 for more information about FS4 signal routing.
EMBED Map Menus
1.0 Vid 1 Audio Out
Selects the audio input sources for the selected FS4 Video Processor's audio output channels. The factory default for each output is the corresponding input: i.e. SDI1 to SDI1, SDI2 to SDI2, etc.
| SDI1 - SDI8 InputAES/EBU InMADI BNC InMADI Fiber In | The selected source channels are routed to the corresponding output channels. |
| Mix Down 1 L:R The stereo | output of the Mix Down 1 Module is routed to the output channels 1 and 2. The other channels are muted. |
| Mix Down 2 L:R (4Ch only) | The stereo output of the Mix Down 2Module is routed to the output channels 1 and 2. The other channels are muted. |
| Sig Gen 1KHzSig Gen 400HzMute | The selected tone or mute is routed to every output channel of the selected Video Processor. |
| Map The currently configured | mapping is applied to each output channelof the selected Video Processor. Channel mapping menus for each output become available. |
NOTE: In 4Ch mode, if the Maintain A/V Sync feature is being used and multiple Video Processors share the same audio sources, the lowest numbered video processor with shared audio is considered the Master, and the Maintain A/V Sync feature will be inactive for higher numbered Video Processors. See "Maintain A/V Sync with Multiple Video Processors" on page 86 for more information.
1.1-1.16 SDI1 Output Channel
When Map is selected, each listed source can be mapped to each output channel of the currently selected output menu.
| SDI1 Output Ch 1 throughSDI1 Output Ch 16 | Select the source to route to the selected output from the following:-SDI1-8 Ch 1 - Ch 16-AES Ch 1-16-MADI BNC 1-64-MADI Fiber 1-64-Mix Down 1 L-Mix Down 1 R-Mix Down 2 L (4Ch only)-Mix Down 2 R (4Ch only)-Sig Gen 1kHz-Sig Gen 400Hz-Mute |
2.0-4.0 SDI2-4 Audio Out
See "1.0 Vid 1 Audio Out" on page 94
AES/MADI Map Menus
When AES is selected, mapping parameter menus for AES and MADI input audio are displayed. These menus are the similar to those used for SDI Embedded Audio mapping described above.
Remote FS4 Control Via a Web Browser
The FS4 web interface consists of a built-in optimized web server that provides control via a web browser running on a network-attached computer. The browser screens are presented and described on the following pages, organized as they appear in the browser.
Supported browsers
- Chrome (all platforms)
- Firefox (all platforms)
- Safari (OSX, Mobile)
- Internet Explorer (versions 10 and higher)
Other browsers are likely to work but are not guaranteed.
Supported RJ-45 Ethernet network connections
- Closed local area network (LAN)
- Straight computer to FS4 cable connection
- Broadband wide area network (WAN) with the firewall opened for the FS4 (not recommended since anyone on the internet can then access the FS4)
Internally the FS4 senses and adapts to either a "straight-through" CAT 5 Ethernet cable or null-modem (crossover) cable using standard RJ-45 connectors. No setup or strapping is needed to adapt to the cable.
Browser connection
For browser access, enter the FS4 IP address in the browser's address field.
By default, the FS4 is set to automatically connect to your network's DHCP server to get an IP address and other network configuration data. You will find the IP address in the STATUS Menu Group as follows:
- Press the STATUS button on the FS4 front panel.
- Turn the SELECT knob until you reach status display with the FS4 name at the top.
- Enter the IP address shown in the IP Addr field.
When the browser successfully connects to the FS4, the main Status screen is displayed. If the browser fails to connect, make sure CONFIG settings for IP, Subnet, and Gateway match the network setup of the browser host. You can either make the computer match the FS4, or make the FS4 match your computer.
General Web Browser Screen Description
The webpage screens are different, depending on the current FS4 operating mode. All FS4 screens share some common elements:
Menu
On the left of each screen is a navigational list of the available screens. Click any of these items to jump to that screen. Collapse/expand buttons on the upper right of each menu lets you open and close that menu's selection list.
Alarms
The lower left side of the screen shows alarms that alert you to possible problem conditions, such as disconnected or failed power supplies and video format incompatibilities.
Status and Menu Display
In the center of each screen you'll find the main display showing the status and menu selections for the screen you are viewing. The content of FS4 web screens closely mirrors the parameter menus displayed on the front panel. On all menus except Status, if you hover the cursor over any parameter, the equivalent front panel parameter number is displayed.
Connection
The right side of the screen lists FS4 system details, including system serial number, installed software version, and connection status. This information is useful if you ever have to call AJA Technical Support for help.
Network
The right side of the screen lists AJA systems on the network. The network panel is divided into two sections by the white line- above the line will be a list of FS4 models on the network- below the line will be a list of other AJA devices (such as Cion and other FS models) If you right-click any system in the list and select Identify, the ID LEDs on the unit will blink to identify it. Click on Identify again to stop the blinking. Another way to identify systems is to notice which system's EXT front panel LED flashes when you change any setting from a remote control device, such as the web browser.
Figure 39. FS4 Web Interface, Main Status Screen, Four Ch Mode

Controlling Multiple FS4s
From any screen, you can see at-a-glance all of the AJA devices present on the same local LAN as well as the current FS4 you are controlling. Clicking on any of the listed systems will bring up the Status screen of that device.
NOTE: The FS4 you control may be running a different software version, so screens may look different. It's a good idea to have all your devices running the most current software and the same version. Also, if the Default Gateway is not configured properly, other AJA devices will not be visible. If the display shows no devices found, check the gateway setting.
Resetting Values To Factory Default Settings
FS4 web browser screens feature many user controls that can be reset to factory default values by simply "right-clicking" on the parameter label. When you right-click, the browser displays a Reset to Factory popup that if clicked will cause the parameter to be reset.
NOTE: This reset procedure only works with computers that allow right-clicking. Some computers may not permit this operation.
You can perform a global reset to factory values of all System, Video, Audio, and most Config parameters (the same set of parameters acted on by a Preset Recall).

Caution! Recall Factory Preset changes the settings for both Single Channel and Four Channel FS4 operating modes to their factory default values.
To perform a global reset:
- Go to the Presets screen.
- Click on the Recall button in the Factory Preset row.
User preferences, network settings, and existing Presets are not affected by recalling the Factory Preset.
Drop Down Parameter Operation
Most parameters available on the browser are selected from a drop-down list. The currently active parameter is displayed. Click on the down arrow symbol next to the parameter to display the list and select an alternative value. The FS4 will immediately operate with the new setting.
Slider Operation
Some screens contain slider controls for setting values. To set a value, you can click on a slider to select it and then use the mouse to drag the slider to the position you desire. For fine tuning, while the slider is selected (highlighted by a blue border), use the keyboard left and right arrow keys to change the value one unit at a time. Or you can enter the value directly by clicking on the number displayed above the slider, type in your number then hit Enter to have it take effect. After setting a slider's position, click on the page's background area (blue highlight turns off) to ensure the change is confirmed and saved.
Sub-Menus
Some parameters, when activated, open sub-menus. The sub-menus are a lighter gray color and have a collapse/expand button on the parent selection. This lets you collapse the sub-menus to make it easier to configure the system. The collapsed setting only stays in effect until the user reconnects or refreshes the browser.
Screen Descriptions
Now that you have had an introduction to how the FS4 browser works and how to navigate the screens, each screen and its settings are described in detail (click to jump).
- "Network Pane and Network Configuration Screen" on page 99
• "Alarm Configuration Screen" on page 101
• "Status Screen" on page 101 - "Config Screen" on page 103
• "Video Screen" on page 105
• "Audio Screen" on page 106
• "Presets Screen" on page 107 - "Remote Screen" on page 109
- "Firmware Screen" on page 109
• "Video Channel Screens" on page 110
• "Embedded Audio Channel Screens" on page 114
• "AES (and MADI) Audio Channel Screens" on page 115
Network Pane and Network Configuration Screen

The Network pane on the right side of any screen lists the AJA FS devices that appear on the network. This pane includes three additional controls:
• Hover the cursor over any system name to see its IP address.
- Right-click any system and select Identify to blink the system ID LEDs.
- Click the gear-shaped icon in the Network pane (or select Network from the Menu list on the left side of the screen) to open the Network Configuration screen listing FS4 network settings.
The Network Configuration screen allows you to view and change your FS4's network settings and then click Apply to activate them.
See "Networking" on page 28 for detailed setup instructions for connecting the FS4 to a network. Consult your network administrator about how to configure network settings.
IP Address Type
IP Address Type determines the type of TCP/IP network configuration used by the FS4. DHCP enables the FS4 to connect to the network DHCP server, which assigns the IP Address, Netmask, and Gateway automatically. Static lets you set these parameters manually.
NOTE: If the IP Address Type is DHCP, the IP Address, Netmask, and Default Gateway are gray, indicating they are set automatically and cannot be changed unless IP Address Type is first set to Static. Changes are saved and activated upon confirmation using the Apply button.
| DHCP (default) | Select automatic IP address assignment from the LAN DHCP server. If the FS4 cannot find a DHCP server, it fails over to the static IP address. |
| Static Addr | Assign a static IP address manually. The factory default static IP address: 192.168.0.2 |
IP Address
IP Address determines the static IP address used by the FS4 for TCP/IP networking. (Networking is discussed in Chapter 3, Network Connection.) Consult your network administrator about how to set this value.
| Variable | If IP Address Type is set to DHCP, the IP address is set automatically by the network DHCP server and cannot be entered here.If IP Address Type is set to Static, enter an IP address compatible with your LAN here. Also enter a netmask and default gateway address in the following two parameters. Click Apply when you are ready to apply all three entries to change the FS4's network addressing.If IP Address Type is set to DHCP and there is a DHCP failure, the IP address is set to the static IP address. The default static IP address is 192.168.0.2 |
Netmask
Netmask determines the subnet mask used by the FS4 for TCP/IP networking.
| Variable Enter a subnet mask compatible with your LAN. This is only neededfor Static IP configurations. The factory default Subnet Mask is 255.255.255.0If IP Address Type is set to DHCP, the Subnet Mask is set by the DHCP server and cannot be changed by the user. |
Default Gateway
Default Gateway determines the gateway or router used on your LAN for TCP/IP networking.
Without a properly configured default gateway (whether you have a router/ gateway or not), the FS4 will be unable to see other AJA FS devices on the network, although you may still be able to control this FS4 via a web browser. Also, without a proper gateway defined, the discovery feature on the Network web page will not work correctly and list other FS devices on the network.
| Variable Enter a default gateway or router address. This is only needed for Static IP configurations. The factory Default Gateway is 192.168.0.1. If IP Address Type is set to DHCP, the Default Gateway is set by the DHCP server and cannot be changed by the user. |
Alarm Configuration Screen

You can pop open the Alarm Configuration display at any time and on any screen by clicking the gear button in the upper part of the Alarms panel.
To close the window, press the ESC key, or click the X in the upper right corner.
The Alarm Configuration display provides control over these alarm settings:
• Power Supply Alarm (see "5.1, 5.2 Power Supply 1-2 Alarm" on page 59)
• Video Format Alarm (see "6 Vid Format Alarm" on page 59)
• Reference Alarm (see "7 Reference Alarm" on page 59)
Status Screen
Figure 40. Status Screen Top, Four Channel Mode

Figure 41. Status Screen Bottom, Four Channel Mode

The Status screen displays overall FS4 operational status. You can right-click most video values to change them, allowing you to edit many parameters in one place. Parameters with format incompatibilities or other alarms are highlighted in red.
| Video 1-4 Channel Name | INPUTOUTPUTCaption TranslatorFreeze OutputProc AmpColor CorrectorUFC CustomBackgroundOverride VPID | A user defined name can be entered here. Default is "." (period).Shows the input source and format.Shows the output video selection and format.Shows the caption selection and caption signal presence.Shows whether Freeze Output is On or Off.Shows whether the Proc Amp is On or Off.Shows whether the Color Corrector (RGB) is On or Off.Shows whether Custom conversion, AFD, and ROI are On or Off.Shows the current background signal (Black or Matte).Shows whether VPID is overridden or Off. |
| Genlock Genlock Source | Shows the source of the genlock reference, and its format. | |
| Video Input Status SDI | 1 - 8 Shows the status of each Video input (BNCs and SFPs). | |
| Audio Output Global Audio OutputAESMADI BNCMADI FiberVid1-4 Embed | Right-clicking on the Global Audio Out parameter value lets you select a global output. That same audio will be sent to all the FS4 audio outputs. When set to Off, the other Audio Outputs display their selected value, otherwise only the Global Audio Output setting is displayed.Each of these settings, when visible, reports the audio input that is currently being routed to that audio output. Mute and Sig Gen is reported when all of that port's outputs have that setting.Map is reported when the port's outputs are mapped. | |
| MADI MADI BNC | MADI FiberMADI Output Mode | These settings report the current MADI audio status, including input signal presence and number of channels (64 or 56). |
Figure 42. Status Screen, Single Channel Mode

The Status screen in Single Channel (4K/UHD) Mode is the same as Four Channel (HD/SD) Mode, except:
- 4K or 4K Enhanced Mode is reported on the top of the screen.
- Status information for only Video 1 is displayed (no Vid Proc 2, 3, or 4)
- Input and Playback Image Mapping statuses are displayed.
- Background Video status is not displayed (can only be Black or Matte)
• Audio Vid 2-4 Embed parameters are not displayed.
The following additional items are displayed:
| Video 1 Input Image | MappingOutput Image Mapping | Shows either Auto, Quadrant or 2SI.Shows either Quadrant or 2SI. |
Config Screen

The Config screen includes functions to name the FS4, select the FS4 operating Mode, hide or show unused menus, change the front panel display brightness and fan speed, and configure UPnP.
System Name
The System Name parameter sets the name of the FS4 system. To change the System Name, click on and drag the cursor across the displayed name, and type in a new name. Hit enter when finished or click outside the name control to cancel. The System Name is the same for both the Four Channel and Single Channel modes of operation.
Variable Highlight the existing name and type in a new name, up to 20 characters. Allowed characters are A-Z, a-z, numerals, hyphen, spaces, and period.
FS4 Mode
Selects whether the FS4 will operate in Four Channel or Single Channel mode. A confirm dialog displays a warning that a reboot of the FS4 system will occur.
| HD/SD4K/UHD | After reboot the FS4 will operate in Four Channel (HD/SD) mode.After reboot the FS4 will operate in Single Channel (4K/UHD) mode. |
SNMP Parameters
The following parameters are used to setup the FS4 SNMP (Simple Network Management Protocol) feature.
- SNMP Enable
- SNMP Trap Dest 1
- SNMP Trap Port 1
- SNMP Trap Dest 2
- SNMP Trap Port 2
Refer to "Chapter 6 SNMP" on page 117 for a description of SNMP and how the FS4 supports it.
Screen Saver
This parameter lets you choose the menu screen saver.
| On (AJA Logo) (default)OffSystem Name | AJA logo screen saver is displayedThe screen saver is not displayed.Screen saver displays the system name. |
Display Intensity
Display Intensity determines alphanumeric display and front panel LED brightness.
| Variable Use the slider to dim or brighten the alphanumeric display and activity indicator LEDs in steps from 1 (dim) to 8 (brightest). Default is 6 |
Fan Speed
Determines the speed (and sound level) of the FS4's internal cooling fans.
Variable Changes the fan speed in steps from 1 (slow) to 10 (fast). Default is 10.
UPnP Host
UPnP Host enables the FS4 to be discovered by a Windows network.
| Enable (default) Disable | Enables the FS4 to be discovered by a Windows network. Disables Windows network discovery of the FS4. |
When this parameter is enabled, you can view the FS4 on a Windows Network by clicking these selections in Windows: Computer > Network (in left pane). Any FS4s on the network will be listed under Other Devices below Computers and Media Devices. If your system does not have network discovery enabled, you may need to enable it following the Windows help instructions to make network devices visible in the Windows Network window.
UPnP Proxy
UPnP Proxy enables the FS4 to serve as a proxy for other AJA devices, allowing them to be discovered on a Windows network through the FS4. When enabled, the FS4 acts as a proxy for all the AJA devices that it is able to connect to that have not already been discovered on the network. The devices will be listed in the FS4 Network window. Once the devices appear on the network, they can connect directly to other devices and computers without involving the FS4.
| Enable (default) | Enables the FS4 to connect other AJA devices to the network. |
| Disable | Disables the FS4 from serving as a proxy for AJA devices. |
Video Screen

The Video screen controls the FS4's system wide video signal processing. The parameters available on the Video browser screen are essentially identical to the front panel display menus. The only difference is parameters are set using webpage controls (drop down menus, slider adjustments) instead of control knobs. Complete descriptions of these parameters are accessible using the following cross references:
• "1 Output Frame Rate" on page 54
• "2 Genlock Source" on page 54
• "3.1 HDMI Mon 2K Crop" on page 54
• "3.2 HDMI RGB Range" on page 55
• "3.3 Monitor Map" on page 55
• "4.1 SDI1 3G Detect" on page 55
• "4.2 SDI2 Input Protect" on page 56
• "4.3, 4.5, 4.7 SDI3/5/7 3G Detect" on page 56
• "4.4, 4.6, 4.8 SDI4/6/8 Input Protect" on page 56
Audio Screen

The Audio screen controls the FS4's system wide audio signal processing. The parameters available on the Audio browser screen are essentially identical to the front panel display menus. The only difference is parameters are set using webpage controls (drop down menus, slider adjustments) instead of control knobs. Complete descriptions of these parameters are accessible using the following cross references:
• "1 MADI Output Mode" on page 60
- "2.1-2.8 SDI 1-8 SRC Mode" on page 61
• "2.9 AES SRC Mode" on page 61
• "2.10 MADI BNC SRC Mode" on page 61
• "2.11 MADI Fiber SRC Mode" on page 61
- "3.0 Mix Down 1 Mode" on page 62
- "4.0 Mix Down 2 Mode" on page 63
- "7 Mix Down Reset" on page 64
- "8 Global Audio Output" on page 64
- "9 Reset Mapped Output" on page 64
Presets Screen

The Presets screen allows you to save FS4 Preset Configurations into 40 separate memory registers and recall the presets whenever needed. Each FS4 operating mode (Four Channel and Single Channel) has its own set of 40 presets (80 total).

Caution! In Four Channel Mode, each Preset saves all the settings for all four channels. Storing and recalling a Preset will affect all the settings for all four channels in that mode. Care must be taken to establish a policy for the use of FS4 Presets, especially if the FS4 is operated in Four Channel mode and the different channels have different users.
The Presets screen also includes Export and Import functions that allow exporting one or all FS4 presets to your computer as files and importing exported preset files from your computer. A displayed message indicates successful or failed saves, recalls, exports, and imports.
Presets Screen Controls
Factory Preset
Factory Preset recalls all editable video and audio parameters to their factory default settings. Individual presets, user preferences, and Network settings, such as the IP Address, are not affected. Recall Factory Preset changes the settings for both Single Channel and Four Channel FS4 operating modes to their factory default values.
Recall
The Recall buttons recall saved FS4 preset configurations.

Caution! When you recall a Preset Configuration, the recalled preset immediately replaces the system's existing configuration. All previous settings are lost unless you have previously stored them in another preset configuration or an exported file.
Store
The Store buttons let you save the current FS4 configuration into the preset register with the associated name and number. A preset is a set of all System, Video, Audio, and Output parameters as they were set at the time the preset was stored. Only editable parameters are saved in the presets. Non-editable parameters are not saved.
To change a preset name, click in the name's text field, type a new name, and press Enter to save the name. After entering text, you can click the mouse outside of the edit box to exit without changing the name.
Export
The Export buttons save the associated preset contents to a file on your computer. The file gets exported to the default download location specified in your browser options. The file name is the same as the preset name with the suffix.presets. If you export multiple files for the same preset, a number gets appended to ensure a unique file name. The file size is small, usually less than 100 kilobytes.
Import
The Import buttons let you browse for and import a preset file on your computer into the preset register associated with the selected button. A dialog box warns you that the operation will overwrite the current preset contents with the file contents. You can only import presets from a FS4.
Export Presets 1–40 (All)
Export All lets you save the contents of all presets to a file on your computer.
The file gets exported to the default download location specified in your browser options with the name all.presets. If you export multiple files, a number gets appended to ensure a unique file name.
Import Presets 1–40 (All)
Import All lets you browse for and import a previously exported all.presets file from your computer. A dialog box warns you that the operation will overwrite all 40 current preset contents with the contents stored in the file.
Interaction of Presets and GPIs
Triggering presets using GPI inputs offers considerable power but also requires some care to avoid unexpected results. If you plan to trigger presets using GPIs, please see the information about the "Interaction of Presets and GPIs" on page 53.
Remote Screen

The REMOTE screen contains parameters that affect how the FS4 is controlled. Control options include the front panel, a remote computer running a browser, and GPI inputs and outputs.
NOTE: The Remote Menu Group parameters available on the front panel interact with the browser parameters available on an attached computer, and vice versa. For example, once the Remote Control parameter is set to 'Local Only' from either the browser or front panel, all future settings will only be able to be changed from the front panel. The opposite is true if set to 'Remote Only'. However the Remote Control parameter is always available from the front panel, regardless of how it is set.
See "REMOTE Menu Group" on page 51 for detailed information about FS4 remote control options.
Firmware Screen

The Update Firmware screen allows you to download and install a firmware update from AJA. You can also remotely reboot the FS4 using the Reboot button.
The FS4 Update Page link on the Firmware screen will take you to the correct AJA website page. Or you can visit the AJA website (aja.com) to locate and download the updated software. The following page provides FS4 support information and will include links to locations where you can download updates:
https://www.aja.com/en/family/fs
After downloading the software update to your local drive, use the Browse button to locate the local software copy. Follow the prompts to load the new firmware into the FS4. See "Software Update Installation" on page 31 for more information.
Video Channel Screens
The Video Channel screens control the FS4's video signal processing of that channel (either four or one, depending on mode). In Four Channel Mode four menu groups are selected on the left. In Single Channel Mode only one menu group is available.
The parameters available on the Video Channel browser screens are essentially identical to the front panel display menus. The only difference is parameters are set using webpage controls (drop down menus, slider adjustments) instead of control knobs. Select the right arrow to display the video channel of interest, and select a category (such as 'Input') to view and change related parameters.
Input Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
- "1 Input" on page 66
- "2 Loss of Input" on page 67
• "3 Reverse Telecine" on page 67
• "4 Input Scan Format" on page 68 - "5 Input Image Mapping" on page 68
Format Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
- "1 Output Format" on page 74
- "3.0 Link Config SDI1, 2, 3, 4" on page 75
• "3.1 Level B SDI1, 2, 3, 4" on page 76
• "3.0 Link Config SDI1-4" on page 76 - "4.0 Link Config SDI5-8" on page 76
- "5 Output Image Mapping" on page 77
- "6 SD Aspect Ratio" on page 77
- "7 Upconvert Mode" on page 78
• "8 Down Convert Mode" on page 79
Timing Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1 Maintain A/V Sync" on page 84
• "2 Output Timing H" on page 87
- "3 Output Timing V" on page 87
- "4 Frame Delay" on page 88
Scale Screen

NOTE: If AFD is enabled, these parameters do not display
Complete descriptions of the parameters on this screen are accessible using the following cross references:
- "Custom Conversion Settings" on page 80
• "Region of Interest (ROI)" on page 81
• "3.0 1080i Output Filter" on page 82
Keyer Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
- "1 Background Fill" on page 83
- "2 Sidebar Edge" on page 83
• "3.1 Matte Luma" on page 83
• "3.2 Matte Chroma" on page 83
• "3.3 Matte Hue" on page 84
Test Gen Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1 Test Pattern Gen" on page 88
• "2 Test Pattern" on page 89
Color Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1.0 Proc Amp Enable (YUV)" on page 72
- "2.0 Color Corrector (RGB)" on page 73
• "16.0 Video Legalizer" on page 73
ANC Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1.1 AFD Out" on page 68
• "1.2 AFD Output Lines" on page 69
• "1.3 Down Convert AFD dfl" on page 69
• "2 Caption Xlator" on page 69
• "3 SD Line 21 Blanking" on page 70
• "4 Override VPID" on page 71
• "5 SDI Mon Override VPID" on page 71
• "6 Timecode Xlator" on page 71
Freeze Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1 Freeze Output" on page 89
Embedded Audio Channel Screens
The Embedded Audio Channel browser screens display Level, Delay, and Mapping controls for the Embedded audio channels. When the SDI output signal has multiple links, the audio is always embedded on the first link of the SDI output channel.
Embed Level Screen

Complete descriptions of the SDI audio level and phase parameters on this screen are accessible using the following cross reference:
• "EMBED Level Menus" on page 90
Embed Delay Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
- "EMBED Delay Menus" on page 92
Embed Map Screen

Complete descriptions of the parameters on this screen are accessible using the following cross references:
• "1.0 Vid 1 Audio Out" on page 94
• "2.0-4.0 SDI2-4 Audio Out" on page 95
AES (and MADI) Audio Channel Screens
The AES Audio Channel browser screens display Level, Delay, and Mapping controls for the AES, MADI BNC and MADI Fiber audio channels.
AES/MADI Level Screen

The parameters on this screen are similar to those for the Embedded Audio Channel screens, except they apply to either AES or MADI audio inputs. For more information see:
- "EMBED Level Menus" on page 90
AES/MADI Delay Screen

The parameters on this screen are similar to those for the Embedded Audio Channel screens, except they apply to either AES or MADI audio inputs. For more information see:
- "EMBED Delay Menus" on page 92
AES/MADI Map Screen

The parameters on this screen are similar to those for the Embedded Audio Channel screens, except they apply to either AES or MADI audio inputs. For more information see:
• "1.0 Vid 1 Audio Out" on page 94
• "2.0-4.0 SDI2-4 Audio Out" on page 95
FS4 Simple Network Management Protocol
SNMP is defined as a "simple network management protocol" and was specified as a component of the internet protocol suite by the Internet Engineering Task Force (IETF). The FS4 can act as a network element that issues SNMP trap messages signaling a detected alarm condition or other system condition. A device's trap messages are defined in MIB (Management Information Base) files. The trap messages are sent to a server-based external NMS (Network Management System) destination. For example, the FS4 could send a trap message if one of its redundant power supplies becomes unplugged. A client software agent that communicates with the NMS might then get a message telling the operator what has happened.
The FS4 must be configured for SNMP messaging. By default SNMP is disabled on the FS4. Besides activating SNMP, trap destinations must also be defined with fixed IP addresses.
When SNMP is enabled, one or more of these alarms may be sent by the FS4 to the client network management system (NMS) as a trap message:
• FS4 power supply 1 Alarm
• FS4 power supply 2 Alarm
- No Reference Alarm
• Incompatible Reference Alarm
- Format incompatibility Video Proc Alarm
- Format incompatibility Video Proc 1 Alarm
- Format incompatibility Video Proc 2 Alarm
- Format incompatibility Video Proc 3 Alarm
- Format incompatibility Video Proc 4 Alarm
• Video Proc 1 Background format Alarm
• Video Proc 2 Background format Alarm
• Video Proc 3 Background format Alarm
• Video Proc 4 Background format Alarm
• Video Proc 1 Background Timing Alarm
• Video Proc 2 Background Timing Alarm
• Video Proc 3 Background Timing Alarm
• Video Proc 4 Background Timing Alarm
• Over Temp Range Alarm
SNMP Configuration
AJA MIBs
AJA provides two FS related MIB files for use with your NMS. One identifies AJA product types, and the other defines the trap messages for a specific AJA product. These MIB .txt files are included with the AJA SNMP MIBs download package.
Front Panel SNMP Configuration
FS4 SNMP configuration can be accomplished using the front panel or with the web browser computer interface (if Remote Control is enabled).
The FS4 front panel screens for SNMP are accessible through the CONFIG button. The direct SNMP configuration screens are:
- 4.0 SNMP Enable
• 4.1 SNMP Trap Destination 1
• 4.2 SNMP Trap Port 1
• 4.3 SNMP Trap Destination 2
• 4.4 SNMP Trap Port 2
These SNMP direct configuration parameters are described later in this chapter.
Front Panel Octet Value Entry Procedure
Set the octets (numbers between periods) values as follows:
- Push ADJUST momentarily to enter edit mode.
- Turn SELECT to select the octet you want to edit, indicated by blinking.
- Turn ADJUST to enter the new value.
- If you need to revert to the previous setting (undo changes), push SELECT.
- Push ADJUST momentarily to save and activate the new setting.
- If you want to revert to the default value, hold down ADJUST for 4 seconds.
Web Browser SNMP Configuration
SNMP direct configuration settings are available on the Config screen of the web browser interface.
Figure 43. Web Browser Config Screen SNMP Parameters

4.0 SNMP Enable
The SNMP Enable parameter Enables or Disables SNMP messaging between the FS4 and an external client.
| Disabled (default)Enable 1Enable Both | When set to Disabled, the FS4 will not issue SNMP trap messages.When set to Enable 1, the FS4 issues SNMP trap messages to Trap Destination 1 (parameter 4.1) and as defined in the MIB.When set to Enable Both, the FS4 issues SNMP trap messages to Trap Destination 1 and 2 (parameters 4.1 and 4.3) and as defined in the MIB. |
When Enabled, menus described below are available for configuration.
4.1 SNMP Trap Destination 1
Determines the SNMP Trap Destination IP address where trap messages issued by the FS4 will be sent.
IP Address Set the desired IP address where traps will be sent (usually a client on your LAN). Default: 192.168.0.3
4.2 SNMP Trap Port 1
Determines the SNMP Trap Port 1 used for sending destination #1 trap messages. UDP Port 162 is the default used for SNMP trap messages. However, if this port is being used by another protocol or service, you can change the setting by modifying this parameter.
Variable Select a UDP port for sending FS4 trap messages. Default: 162
NOTE: The SNMP Trap Port number does not blink when changed (as does the Trap Destination IP address); if you change the port number and exit the parameter, the port changes immediately to the new value.
4.3 SNMP Trap Destination 2
Determines the secondary SNMP Trap Destination IP address where trap messages issued by the FS4 will be sent (if desired). This parameter is similar to "4.1 SNMP Trap Destination 1" above. The default is 192.168.0.3.
4.4 SNMP Trap Port 2
Determines the SNMP Trap Port used for sending destination #2 trap messages, similar to "4.2 SNMP Trap Port 1" above. Default is 162.
FS4 Tech Specs
Modes of Operation
- Four Channel Mode - 4x Independent 2K, HD, or SD Video Processors
- Single Channel Mode - 1x 4K, UltraHD, 2K, HD, or SD Video Processor
- Enhanced Single Channel Mode - 1x 4K, UltraHD Video Processor with simultaneous 4K/UltraHD and 2K/HD/SD outputs
Video Formats
• (4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (4K) 4096 x 2160PsF 23.98, 24, 25, 29.97, 30
• (UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (UltraHD) 3840 x 2160PsF 23.98, 24, 25, 29.97, 30
• (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30
• (HD) 1920 x 1080i 50, 59.94, 60
• (HD) 1280 x 720p 50, 59.94, 60
• (SD) 625i 50
• (SD) 525i 59.94
- YCbCr, 4:2:2, 10-bit
Video Input Digital
• 4x 3G-SDI inputs, 4x BNC
- 4x 12G-SDI inputs, 4x Fiber or HD-BNC (optional SFP modules)
- SFP coax module, 12G/6G-SDI, dual HD-BNC
- SFP fiber module, 12G/6G-SDI, Single Mode, dual LC or single LC, SMPTE 297
- SFP fiber module, 3G-SDI, Single Mode, dual LC, single LC, or single SC, SMPTE 297
- SFP fiber module, 3G-SDI, Multi-Mode, dual LC or single LC, SMPTE 297
• 12G/6G/3G/HD/SD, SMPTE 259/292/424/2081/2082
- Single Link 12G/6G-SDI (with optional SFP module)
• Quad Link 3G-SDI Level A or B DL (4x 3G), SMPTE 425-5
• Dual Link 3G-SDI Level B DS (2x 3G), SMPTE 425-3
• Single Link 3G-SDI Level A, B DL, or B DS, SMPTE 425
• Quad Link HD-SDI (4x 1.5G)
• Dual Link HD-SDI (2x 1.5G), SMPTE 372 - Single Link HD/SD
- Quadrant (Square Division) or 2SI (Two Sample Interleave) 4K/UltraHD input pixel mapping
- 8x 1 selector feeds video processor(s)
Video Output Digital
• 4x 3G-SDI outputs, 4x BNC
- 4x 12G-SDI outputs, 4x fiber or HD-BNC (optional SFP modules)
- SFP coax module, 12G/6G-SDI, dual HD-BNC
- SFP fiber module, 12G/6G-SDI, Single Mode, dual LC or single LC, SMPTE 297
- SFP fiber module, 3G-SDI, Single Mode, dual LC, single LC, or single SC, SMPTE 297
- SFP fiber module, 3G-SDI, Single Mode, dual LC, SMPTE 297
- SFP fiber module, 3G-SDI, Multi-Mode, dual LC or single LC, SMPTE 297
• 12G/6G/3G/HD/SD, SMPTE 259/292/424/2081/2082
- Single Link 12G/6G-SDI (with optional SFP module)
• Quad Link 3G-SDI Level A or B DL (4x 3G), SMPTE 425-5
• Dual Link 3G-SDI Level B DS (2x 3G), SMPTE 425-3
• Single Link 3G-SDI Level A, B DL, or B DS, SMPTE 425
• Quad Link HD-SDI (4x 1.5G)
• Dual Link HD-SDI (2x 1.5G), SMPTE 372
- Single Link HD/SD
- Quadrant (Square Division) or 2SI (Two Sample Interleave) 4K/UltraHD output pixel mapping
Monitor Output Digital
• Monitor Output is a copy of the Main Output
• 1x BNC, 1x 3G-SDI output
• 3G-SDI/HD/SD, SMPTE 259/292/424, 10-bits
• 4K/UltraHD automatically down-converted to 2K/HD
- SDI Monitor Output is configurable when FS4 is operating in Enhanced Single Channel Mode
- Video Formats
• (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
• (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30
• (HD) 1920 x 1080i 50, 59.94, 60
• (HD) 1280 x 720p 50, 59.94, 60
• (SD) 625i 50
• (SD) 525i 59.94
• 1x HDMI, 1x HD output
• 2K/HD/SD, HDMI v1.4a
• 4K/UltraHD automatically down-converted to 2K/HD
- HDR Infoframe generation to support HDR displays per HDMI v2.0b and CTA-861-G
- Crop control
Video Processing
• Motion adaptive deinterlacer
- Proc amp controls
- Color corrector
- Legalizer
• Frame rate conversion/film cadence removal/insertion (3:2, 1:2, 2:1, 2:3)
- Adjustable delay 0-20 frames with H and V timing controls in lines and pixels
- Freeze (manual or on input signal loss) to black or last good frame
- Matte generator for background fill
• Video test generator with SDR and HDR patterns
- Nominal video delay HD/SD, 2 frames (LFR), 4 frames (HFR)
Ancillary Data
- All embedded ANC packets pass-through when output format equals input format
- Ancillary Timecode (LTC, VITC1, VITC2) translation and pass-through for wide range of conversions
- SCTE-104 and Closed Captioning pass-through for wide range of conversions
- Closed Captioning conversion (CEA-608/CEA-708)
- AFD input detection, down-convert control, and output pass-through or overwrite
- Configurable SDI output VPID for Colorimetry and Transfer Characteristic
Format Conversion
- Convert any supported input format to any supported output format, within the same frame rate family. These three families are:
• 59.94, 29.97, 23.98
• 50,25
• 60, 30, 24
Scaling
• Supported in 2K/HD/SD formats
- Zoom in and out
- Reposition
• Region of Interest (ROI)
Up-Conversion
- Hardware 10-bit
- Zoom 14:9: results in a 4:3 image zoomed slightly to fill a 14:9 image with black side bars
- Zoom Letterbox: results in image zoomed to fill fullscreen
- Zoom Wide: results in a combination of zoom and horizontal stretch to fill a 16:9 screen; this setting will introduce a small aspect ratio change
Down-Conversion
- Hardware 10-bit
- Anamorphic: fullscreen
- Letterbox: image is reduced with black top and bottom added to image area with the aspect ratio preserved
- Crop: image is cropped to fit video output format
Aspect Ratio Conversion for SD to SD
- Letterbox: Transforms SD anamorphic material to a letterboxed image
- H Crop: Produces a horizontally stretched effect on the image; transforms anamorphic SD to full frame
- SD Pillarbox: Produces an image in the center of the screen with black borders on the left and right sides and an anamorphized image in the center
• V Crop: Transforms SD letterbox material to an anamorphic image
Audio Input Digital
• 48 kHz sample rate
- 8x SDI embedded inputs (16-channels each)
• 128-channels, 24-bit (20-bit SD), SMPTE 272/299
- 8x balanced AES inputs (16-channels), 1x DB-25
• 16-channels, 24-bit, AES-3
- 2x MADI inputs, 1x BNC, 1x ST Fiber
• 128-channels, 24-bit, AES-10
Audio Output Digital
• 48 kHz sample rate
- 1x SDI embedded output per Video Processor (16-channels each)
- 16-channels (in single Video Processor mode), 24-bit (20-bit SD), SMPTE 272/299
- 64-channels (in four Video Processor mode), 24-bit (20-bit SD), SMPTE 272/299
• 8x balanced AES outputs (16-channels), 1x DB-25
• 16-channels, 24-bit, AES-3
• 2x MADI outputs, 1x BNC, 1x ST Fiber
• 128-channels, 24-bit, AES-10
Audio Processing
- 277 x 208 mono audio matrix, route 1 to 1, 1 to many
- Inputs: 128 embedded, 16 AES, 128 MADI, 2 stereo mixdowns, 3 tone generator
- Outputs (Four Channel Mode): 16 AES, 128 MADI, 64 embedded
- Outputs (Single Channel Mode): 16 AES, 128 MADI, 16 embedded
- Input adjustment controls for each channel
• Gain +18 to -18 dB in 0.5 dB steps - Phase invert
- Input adjustment controls for each channel pair
- Delay -16ms to +1sec in 20.8 us steps
- Audio delay can automatically follow video timing delay adjustments
- Two independent 5.1 or 7.1 to stereo mixdown processors with gain adjust
• High quality Sample Rate Conversion (SRC) supported on all audio inputs - SRC bypass for non-PCM audio (e.g. Dolby E, AC-3, etc)
• Audio tone generator (mute, 400 Hz, 1 kHz)
Reference Input
- External, 2x BNC
- Looping, nonterminating
- Blackburst or tri-level sync
Genlock
- Lock to External Reference
- Lock to SDI input 1 thru 8
• Free run based on Temperature Compensated Crystal Oscillator
Network Interface
• 1x RJ-45, 10/100/1000 Ethernet
- Embedded web server for remote control
- REST Interface
• SNMP
User Interface
- Display
- Keypad with status LEDs
- Two rotary/push knobs
• Comprehensive alarm indicators
Presets
- Four Channel and Single Channel Mode each support 40 system level Presets
GPI
- 1x 25-pin D-Connector
- Four optically isolated GPI inputs
• Four optically isolated GPO outputs
Size (w x d x h)
- 17.5" x 16.0" x 1.75" (1RU) (444.5 x 406.4 x 44.45 mm)
Weight
• 7.9 lb (3.6 kg)
Power
- 100-240 VAC 50/60 Hz (Dual, redundant power supplies), 55W typical; 70W max.
Environment
- Safe Operating Temperature: 0 to 40 C (32 to 104 F)
- Safe Storage Temperature (Power OFF): -40 to 60 C (-40 to 140 F)
- Operating Relative Humidity: 10-90% noncondensing
- Operating Altitude: <3,000 meters (<10,000 feet)
GPI Pinouts
General Purpose Interface Inputs and Outputs are available on the FS4 back panel to provide contact closure control. GPI Inputs can control FS4 functions, while GPI outputs can control external equipment (i.e. alarms).
Figure 44. DB-25F GPI Input and Output Pinout
| Pin Function Pin Function | |||
| 1 NC 14 NC | |||
| 2 NC 15 NC | |||
| 3 NC 16 NC | |||
| 4 NC 17 NC | |||
| 5 NC 18 NC | |||
| 6 NC 19 NC | |||
| 7 GPI GND 4 20 GPI Out 4 | |||
| 8 GPI In 4 21 GPI GND 3 | |||
| 9 GPI Out 3 22 GPI In 3 | |||
| 10 GPI GND 2 23 GPI Out 2 | |||
| 11 GPI In 2 24 GPI GND 1 | |||
| 12 GPI Out 1 25 GPI In 1 | |||
| 13 Ground | |||
The GPI inputs and outputs are electrically isolated from power and ground on the FS4 frame. There are four inputs and four outputs. Electrical isolation is provided for up to four pieces of external equipment.
The following guidelines apply to the four GPI inputs and outputs:
- GPI In 1 and GPI Out 1 share a common isolated ground on pin 24 (GPI GND 1),
- GPI In 2 and GPI Out 2 share a common isolated ground on pin 10 (GPI GND 2).
• GPI In 3 and GPI Out 3 share a common isolated ground on pin 21 (GPI GND 3). - GPI In 4 and GPI Out 4 share a common isolated ground on pin 7 (GPI GND 4).
- Pin 13, local chassis ground, may only be used as references when isolation is not required.
- All four GPI inputs are internally pulled high through a 10K ohm resistor to an isolated +5V supply, so that a relay contact closure or any device sinking at least 0.4 mA to ground will register a logic low.
- All four GPI outputs are +5V TTL compatible, sourcing up to 6mA and sinking up to 4mA each.
The following illustration shows typical external wiring to the GPI connector. The GPI inputs require some kind of contact closure between the input pin and the input ground pin to register the logic low that triggers the GPI input.
You can connect the outputs to TTL buffers that communicate the GPI output logic levels to other devices. For example, you could use an opto-isolator controlling a relay to activate other equipment as shown below.
Figure 45. Typical GPI Input and Output Connections

Audio Connection Pinouts
Digital Audio
Figure 46. Digital Audio Connector Pinout

G = Ground
To MUX into unbalanced AES BNC connections, use Balun 75 ohm adapter.
The pinout scheme above is used for the AES/EBU digital audio connections. Each channel handles a pair of digital audio signals (16 total per connector). The top connector is for digital audio input channels 1-16, and the bottom connector is for digital audio output channels 1-16.
Appendix C – Safety & Compliance
Federal Communications Commission (FCC) Compliance Notices
Class A Interference Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15, Subpart B of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Canadian ICES Statement
Canadian Department of Communications Radio Interference Regulations
This digital apparatus does not exceed the Class A limits for radio-noise emissions from a digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications. This Class A digital apparatus complies with Canadian ICES-003.
European Union and European Free Trade Association (EFTA) Regulatory Compliance
This equipment may be operated in the countries that comprise the member countries of the European Union and the European Free Trade Association. These countries, listed in the following paragraph, are referred to as The European Community throughout this document:
AUSTRIA, BELGIUM, BULGARIA, CYPRUS, CZECH REPUBLIC, DENMARK, ESTONIA, FINLAND, FRANCE, GERMANY, GREECE, HUNGARY, IRELAND, ITALY, LATVIA, LITHUANIA, LUXEMBOURG, MALTA, NETHERLANDS, POLAND, PORTUGAL, ROMANIA, SLOVAKIA, SLOVENIA, SPAIN, SWEDEN, UNITED KINGDOM, ICELAND, LICHTENSTEIN, NORWAY, SWITZERLAND
Marking by this symbol indicates compliance with the Essential Requirements of the EMC Directive of the European Union 2014/30/EU.

This equipment meets the following conformance standards:
Safety
EN 62368-1: 2014 + A11 (T-Mark License),
IEC 62368-1: 2014 (CB Scheme Report/Certificates
Additional licenses issued for specific countries available on request.
Emissions
EN 55032: 2015 + A11: 2020, CISPR 32: 2015,
EN 61000-3-2: 2014, EN 61000-3-3: 2013
Immunity
EN 55035: 2017 + A11: 2020, EN 61000-4-2:2009,
EN 61000-4-3:2006+A1:2008+A2:2010,
EN 61000-4-4: 2012, EN 61000-4-5: 2014 + A1: 2017, EN 61000-4-6: 2014,
EN 61000-4-11:2020
Environments: E2, E3 and E4
The product is also licensed for additional country specific standards as required for the International Marketplace.
Laser
EN 60825-1: 2007 and EN 60825-2: 2004 + A2: 2010,
CDRH Compliant Class 1 (TUV Cert No. 50135086)
Also Licensed for Standards: FDA 21 CFR 1040.10 and 1040.11

Warning! This is a Class A product. In a domestic environment, this product may cause radio interference, in which case, the user may be required to take appropriate measures.
This symbol on the product or its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste for recycling, please contact your local authority, or where you purchased your product.
Korean KCC Compliance Statement
Taiwan Compliance Statement
警告使用者:
This is a Class A product based on the standard of the Bureau of Standards, Metrology and Inspection (BSMI) CNS 13438, Class A. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
Japanese Compliance Statement
This is a Class A product based on the standard of the VCCI Council (VCCI 32: 2016). If this equipment is used in a domestic environment, radio interference may occur, in which case, the user may be required to take corrective actions.
Chinese Compliance Statement
This product has been tested to the following Chinese standards:
GB 17625.1-2012; GB/T 13837-2012; GB 8898-2011
This is to certify that the above mentioned product(s) complies with the requirements of certification rules of CQC12-045800-2022 under certificate number CQC2016010805915614.
Translated Warning and Caution Messages
The following caution statements, warning conventions, and warning messages apply to this product and manual.

Warning Symbol

Hazard Symbol

Caution Symbol
Before Operation Please Read These Instructions

Warning! Read and follow all warning notices and instructions marked on the product or included in the documentation.
Warning! Do not use this device near water and clean only with a dry cloth.
Warning! Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
Warning! Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Warning! Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the device, the device has been exposed to rain or moisture, does not operate normally, or has been dropped.
Warning! Disconnect the external AC power supply line cord(s) from the mains power before moving the unit.
Hazard! High Voltage. This situation or condition can cause injury due to electric shock.
Warning! Only use attachments and accessories specified and/or sold by the manufacturer.
Warning! Unplug this device during lightning storms or when unused for long periods of time.
Warning! Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Warning! Since the Mains plug is used as the disconnection for the device, it must remain readily accessible and operable.
Warning! Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the device.
Warning! Do not open the chassis. There are no user-serviceable parts inside. Opening the chassis will void the warranty unless performed by an AJA service center or licensed facility.
Warning! To meet safety regulations for leakage current, connect the dual power supplies to separate branch circuits.
CLASS 1 LASER PRODUCT
Warning! Active fiber-optic cables emit radiation invisible to the human eye. Do not look directly at the end of an active fiber-optic cable or the fiber connector on a, FS1-X, FS2, FS3 or FS4; these models are Class 1 Laser Products.
Warranty and Liability Information
Limited Warranty on Hardware
AJA Video Systems, Inc. (AJA Video) warrants that the hardware product, not including software components, will be free from defects in materials and workmanship for a period of five years from the date of purchase. AJA Video provides a separate software warranty as part of the license agreement applicable to software components.
If the Customer brings a valid claim under this limited warranty for a hardware product (hereafter, a "product") during the applicable warranty period, AJA Video will, at its sole option and as the Customer's sole remedy for breach of the above warranty, provide one of the following remedies:
- Repair or facilitate the repair the product within a reasonable period of time, free of charge for parts and labor.
- Replace the product with a direct replacement or with a product that performs substantially the same function as the original product.
- Issue a refund of the original purchase price less depreciation to be determined based on the age of the product at the time remedy is sought under this limited warranty.
To obtain service under this warranty, the Customer must notify AJA Video of the defect before expiration of the warranty period and make suitable arrangements for the performance of service by contacting AJA Video support through the channels set forth on the support contacts web page at https://www.aja.com/support. Except as stated, the Customer shall bear all shipping, packing, insurance and other costs, excluding parts and labor, to effectuate repair. Customer shall pack and ship the defective product to a service center designated by AJA Video, with shipping charges prepaid. AJA Video shall pay to return the product to Customer, but only if to a location within the country in which the AJA Video service center is located. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR LIMITATIONS ON APPLICABLE STATUTORY RIGHTS OF A CONSUMER, SO SOME OR ALL OF THE TERMS OF THIS PARAGRAPH MAY NOT APPLY TO YOU.
Limitation of Liability
Under no circumstances shall AJA video BE LIABLE IN ANY WAY FOR ANY LOST, CORRUPTED OR DESTROYED DATA, FOOTAGE OR WORK, OR FOR ANY OTHER INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOST PROFITS, OR FOR ANY THIRD PARTY CLAIM, IN CONNECTION WITH THE PRODUCT, WHETHER RESULTING FROM DEFECTS IN THE PRODUCT, SOFTWARE OR HARDWARE FAILURE, OR ANY OTHER CAUSE WHATSOEVER, EVEN IF AJA VIDEO HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. AJA VIDEO'S LIABILITY IN CONNECTION WITH THE PRODUCT SHALL UNDER NO CIRCUMSTANCES EXCEED THE PURCHASE PRICE PAID FOR THE PRODUCT. The foregoing limitations apply even if any remedy set forth in this LIMITED WARRANTY fails of its essential purpose. SOME JURISDICTIONS DO NOT ALLOW THE LIMITATION OF LIABILITY FOR PERSONAL INJURY, OR OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO SOME OR ALL OF THE TERMS OF THIS PARAGRAPH MAY NOT APPLY TO YOU.
Governing Law and Language; Your Rights
This limited warranty is the only warranty provided by AJA Video on the hardware product. It supersedes all prior or contemporaneous understandings regarding such subject matter. No amendment to or modification of this warranty will be binding unless in writing and signed by AJA Video. The laws of the State of California, USA will govern this warranty and any dispute arising from it. Any translation of this Agreement is intended for convenience and to meet local requirements and in the event of a dispute between the English and any non-English versions, the English version of this warranty will govern. This limited warranty gives you specific legal rights and you may have other rights that vary from jurisdiction to jurisdiction, some of which are noted above.
Symbols
2 Sample Interleave 22, 68, 77
2SI 68,77
2SI LED 22
6Gb 76
12Gb 76
75 Ohm Terminator 25
A
ADJUST Control Knob Operation 19
AES Audio Channel Screen 115
AES Button 20
AES Delay Menu 93
AES Input Menu 51
AES/MADI Delay Screen 116
AES/MADI Level Screen 116
AES/MADI Map Screen 116
AES Menu 91
AES SRC Mode Menu 61
AFD Out Menu 68
AFD Output Lines Menu 69
AJA Support 2
Alarm 59
Example 23
Alarm Configuration Screen 101
Alphanumeric Display Description 18
ANC Button 21
ANC Screen 113
Audio Features 9
Audio Menu Group Buttons 22
Audio Processor Description 13
Audio Screen 106
Audio Select Button 90
Audio Sync Procedure 85
Authentication 52
A/V Sync 84
B
Background Fill Menu 83
Block Diagram
Four Channel Mode 11
Single Channel Mode 12
Browser
Supported 96
Browser Connection 96
C
Cable Connections 32
Caption Status Menu 51
Caption Xlator Menu 69
CC Green Menu 73
CC Red Black Level Menu 73
CC Red Gain Menu 73
CC Red Gamma Menu 73
Channel Name 50
Channel Select Buttons 20
Chassis Dimensions 27
Coarse Adjust Editing 17
10x speed 17
100x 17
COLOR Button 21
Color Corrector (RGB) Menu 73
Colorimetry 71
COLOR Menu Group 72
Color Screen 113
CONFIG Menu Group 56
Config Screen 103
Connectors
Read Panel 24
Controlling Multiple FS4s 97
Cooling Requirements 27
Custom Aspect Menu 80
Custom Bottom Crop Menu 81
Custom H Position Menu 81
Custom Left Crop Menu 81
Custom Right Crop Menu 81
Custom Size Menu 80
Custom Size/Pos Menu 80
Custom V Position Menu 81
D
Default Gateway 58
DELAY Button 22
DELAY Menu Group 92
Digital Audio
Pinouts 126
Display Intensity Menu 60, 104
Down Convert AFD dfl Menu 69
Down Convert Mode Menu 79
Drop Down Parameter Operation 98
Dual Link Input
Four Channel Mode 33
Dual Link Output
Four Channel Mode 35
Dual Stream 55
Dual Stream Input
Single Channel Mode 39
Dual Stream Output
Single Channel Mode 40
E
EMBED Button 20
Embedded Audio Channel Screen 114
Embed Delay Screen 115
Embed Level Screen 114
Embed Map Screen 115
Enhanced Single Channel Mode 13
Ethernet Connection 96
Static IP 29
Export All Presets Button 108
Export Button 108
F
Factory Default 18,98
Factory Preset 107
Factory Preset Menu 65
Fan Speed 60, 104
Film Cadence 67
Firmware Screen 109
First Power Up 43
FORMAT Button 21
FORMAT Menu Group 74
Format Screen 110
Four Channel Mode 47
Block Diagram 11
Conversion Examples 36
Description 10
Dual Link Input 33
Dual Link Output 35
Dual Stream Input 34
Dual Stream Output 35
Frame Delay Menu 88
FREEZE Button 21
FREEZE Menu Group 89
Freeze Output Menu 89
Freeze Screen 111, 114
Front Panel Control 10
Front Panel Description 16
FS4 Mode Menu 57, 104
FS4 Modes 47
FS4 Operating Modes 44
FS4 Processing Examples 44
FS4 Setup Procedure 44
G
General FS4 Setup Procedure 44
Genlock
Reference 14
Genlock Source Menu 54
Global Audio Output Menu 64
GPI 24
External Wiring 125
Interaction with Preset 53
Pinouts 125
GPI 1-4 OUT Menu 54
GPI Connector 24
GPI IN 1–4 Response Menu 52
GPI Inputs and Outputs 10
H
HDMI Mon 2K Crop Menu 54
HDMI Monitor Output 25,42
HDMI RGB Range Menu 55
|
ID LED 22
Import All Presets Button 108
Import Button 108
INPUT Button 21
Installation Summary 26
IP Address
Default 57
IP Address Menu 57,100
IP Address Type 100
IP Config Menu 57
K
KEYER Button 21
KEYER Menu Group 83
Keyer Screen 112
L
LAN Connector 24
LED
2SI 22
ID 22
PS1/PS2 22
Reference 22
Remote 22
Status Indicators 22
Level B SDI1, 2, 3, 4 Menu 76
LEVEL Button 22
LEVEL Menu Group 90
Link Config SDI1, 2, 3, 4 Menu 75
Link Config SDI1-4 Menu 76
Link Config SDI5-8 Menu 76
Loss of Input Menu 67
M
MAC Address 58
MADI Audio Channel Screen 115
MADI BNC 24
MADI BNC Delay Menu 93
MADI BNC SRC Mode Menu 61
MADIFIB Delay Menu 93
MADI Fiber SRC Mode Menu 61
MADI In/Out 51
MADI Menu 91
MADI Output Mode Menu 60
Maintain A/V Sync 84
Multiple Video Processors 86
MAP Button 22
MAP Menu Group 93
Master Video Processor 86
Matte Chroma Menu 83
Matte Hue Menu 84
Matte Luma Menu 83
MIB 117
Mic Down Mode 62
Mix-Down
5.1 to 2 Ch. Equation 63
7.1 to 2 Ch. Equation 63
Mix Down Input Level Menu 62
Mix Down Input Mapping Menu 62
Mix Down Input Menu 62
Mix Down Mode Menu 62
Mix Down Output Lft Rt Level Menu 63
Mix Down Reset Menu 64
Mode 47
Monitoring
Usng SFPs 42
Monitor Map Menu 55
Monitor Output
HDMI 25
SDI (BNC) 24
Monitor Output Menu 50
Mulit-Channel Audio
Speaker Position 63
N
Name Entry Procedure 57
Netmask Menu 100
Network Configuration 28
Default Settings 28
DHCP 28
Network Configuration Screen 99
Network Pane 99
O
Octet Value Entry 57
Operating Modes
Description 44
Operational Summary 17
Operation Overview 14
Operation Summary 17
Output Format Menu 74
Output Frame Rate Menu 54
Output Image Mapping Menu 77
Output Timing H Menu 87
Output Timing Memory 14, 87
Output Timing Ranges 87
Output Timing V Menu 87
Override VPID 71
Overview 8
P
Ping 29
Pinouts
Digital Audio 126
GPI 125
Power Requirements 28
Power Supply 1-2 Alarm Menu 59
Power Supply Connectors 24
Power/Temp Alarm Menu 51
Preset
Interaction with GPI 53
PRESET Menu Group 64
Presets and FS4 Operating Mode 48
Presets Screen 107
Proc Amp Black Menu 72
Proc Amp Enable (YUV) Menu 72
Proc Amp Gain Menu 72
Proc Amp Hue Menu 72
Proc Amp Sat Menu 72
Processing Examples 44
PS1/PS2 LED 22
Q
Quad Link BNC Input
Single Channel Mode 38
Quad Link Output
Single Channel Mode 40
Quadrant 22,68,77
R
Reboot 60
Recall Button 107
REF 42
Reference
Genlock 14
Reference Alarm Menu 59
REF LED 22
Ref Loop 25
Region of Interest 81
Region of Interest Menu 82
Remote Control Menu 52
Remote LED 22
REMOTE Menu Group 51
Remote Screen 109
Reset Mapped Output Menu 64
Retained Settings 14
Reverse Telecine
Conditions 67
Reverse Telecine Menu 67
ROI (Region of Interest) 81
S
SCALE Button 21
SCALE Menu Group 80
Scale Screen 111
Screen Saver Menu 59, 104
SD Aspect Ratio Menu 77
SDI1 3G Detect Menu 55
SDI 1-8 SRC Mode Menu 61
SDI 1 Channel Pair Delay Menu 93
SDI1 Delay 92
SDI 1 Delay Global Menu 93
SDI1 Level Menu 90
SDI1 Output Channel Menu 94
SDI1 Phase Menu 91
SDI2-8 Level Menu 91
SDI2-8 Phase Menu 91
SDI2 Input Protect Menu 56
SDI3/5/7 3G Detect Menu 56
SDI4/6/8 Input Protect Menu 56
SDI In/Out Connector 24
SDI Input Menu 50
SDI Monitor Format 75
SDI Monitor Output 42
SDI Monitor Output (BNC) 24
SDI Mon Override VPID 71
SD Line 21 Blanking Menu 70
SELECT Control Knob Operation 18
Serial Number 60
Serial Number Menu 60
SFP Connector 24
SFP I/O 13
SFP Module Installation 27
Sidebar Edge Menu 83
Single Channel Mode 8
Block Diagram 12
Conversion Examples 41
Description 11
Dual Link Input 38
Dual Stream Input 39
Dual Stream Output 40
Enhanced 13
Quad Link Input 38
Quad Link Output 39
Slider Control Operation 98
SNMP 10, 117
MIB 117
Trap Destination 117
Trap Message 117
SNMP Enable Menu 119
SNMP Trap Destination 1 Menu 119
SNMP Trap Destination 2 Menu 119
SNMP Trap Port 1 Menu 119
SNMP Trap Port 2 Menu 119
Software Download 31
Software Update 31
Source Memory 14
Speaker Position
Multi-Channel Audio 63
Square Division 22, 68, 77
Stand Alone Tests 42
STATUS Menu Group 48
Status Screen 101
Store Button 107
Subnet Mask
Default 58
Subnet Mask Menu 58
Supported Browsers 96
System Buttons 19
System Name Menu 56,104
System Status Menu 49
T
Technical Support 2
Test Gen Screen 112
Test Pattern Menu 89
Timecode Xlator 71
TIMING Button 21
TIMING Menu Group 84
Transfer Characteristic 71
Trap Destination
SNMP 117
Trap Message 117
TSTGEN Button 21
TSTGEN Menu Group 88
U
Undo 17
Unpacking 27
Upconvert Mode Menu 78
UPnP Host 105
UPnP Host Menu 105
V
Vid 1/2 I/O Menu 49
VID1-4 Buttons 20
Vid 1 Alarm Menu 50
Vid 1 Audio Out Menu 94
Vid 1 Format Menu 49
Vid 2-4 Alarm Menu 50
Vid 2-4 Format Menu 49
Vid Alarm Menu 50
Video Channel Screen 110
Video Features 8
Video Legalizer Menu 73
Video Menu Group Buttons 21
Video Processor
Master (4Ch Mode) 86
Video Processor Description 13
Video Screen 105
Video with Audio Routing 65
Vid Format Alarm Menu 59
Vid I/O Menu 49
VPID
Colorimetry 71
Override 71
SDI Mon Override 71
Transfer Characteristic 71
W
Web Browser
Description 96
Web Browser Control 10, 96