AT-OME-MH21-CP - Switch Atlona - Free user manual and instructions

Product Type	AV Switcher with USB-C and HDMI inputs
Brand	Atlona
Model	AT-OME-MH21-CP
Inputs	1 x HDMI (Type A, 19-pin female), 1 x USB-C (USB Type-C v3.1, 24-pin female, AV alternate mode)
Output	1 x HDMI (Type A, 19-pin female)
USB Hub	2 x USB Type-A (4-pin female), 1 x USB Type-B (female) for host
Maximum Video Resolution	4K @ 60 Hz (4096x2160) with 4:4:4 color (up to 18 Gbps)
HDCP Compliance	HDCP 2.2
Scaler	Selectable 4K to 1080p downscaling (no frame rate conversion)
Audio De-embedding	Two-channel LPCM via 5-pin captive screw (balanced/unbalanced)
USB-C Power Delivery	Up to 60 W for laptops and mobile devices
Control Interfaces	Front panel buttons, web server (HTTP/HTTPS), Telnet, RS-232, IR, CEC
Network	1 x RJ45, 10/100 Mbps, DHCP or static IP
Power Supply	External, 24 V / 5 A DC (locking 4-pin mini-DIN connector)
Power Consumption	Unit only: 6.0 W; full load: 90.4 W (with USB-C charging)
Dimensions (Unit)	26 mm H x 219 mm W x 152 mm D (1.02 x 8.62 x 5.98 in)
Weight (Unit)	0.975 kg (2.15 lbs)
Operating Temperature	0 to +50 °C (+32 to +122 °F)
Certifications	CE, FCC, CB, cULus, CCC
Warranty	3 years

Frequently Asked Questions - AT-OME-MH21-CP Atlona

What is the AT-OME-MH21-CP?

The AT-OME-MH21-CP is a compact AV switcher with HDMI and USB-C inputs, designed for huddle rooms and small meeting spaces. It includes a USB 3.0 hub and can deliver up to 60 watts of charging to connected devices.

How do I switch between inputs manually?

Press the INPUT button on the front panel to toggle between HDMI and USB-C. The active input LED will glow solid green. Alternatively, use the built-in web server: go to I/O Settings and select the desired input from the Input Selection drop-down.

Can the scaler convert 4K to 1080p?

Yes. Enable the Scaler toggle on the I/O Settings page of the web server. When ON, 4K content will be downscaled to 1080p. Note that the scaler does not perform frame rate conversion (e.g., 60 Hz to 30 Hz).

How do I enable auto switching?

Auto switching is enabled by default. To turn it off, access the web server, go to I/O Settings, and set the Auto Switch toggle to OFF. When enabled, the unit automatically selects the most recently connected source.

What is the maximum power delivery from the USB-C port?

The AT-OME-MH21-CP provides up to 60 watts of device charging via the USB-C port. This is sufficient to charge most laptops and mobile devices.

How do I configure the IP address?

The unit defaults to DHCP. To set a static IP, press and hold the IP MODE button on the front panel until the LED flashes (2 flashes = DHCP, 3 flashes = static). Or, use the web server: go to System > Network and select STATIC IP, then enter the IP, Netmask, and Gateway.

How do I reset the unit to factory defaults?

Press and hold the RESET button on the front panel for 5 seconds until the LED flashes three times. Alternatively, via the web server: go to System and click Factory Default. Note: This will reset all settings to factory defaults.

What analog audio output is available?

The unit provides a 5-pin captive screw connector for balanced or unbalanced 2-channel audio output. Use the Audio settings in the web server to mute or control the audio output via HDMI or analog.

Can I control the display via CEC?

Yes. The unit supports CEC (Consumer Electronics Control) over HDMI. In the web server under Display > Control Type, select CEC. You can then send power and volume commands to the connected display (functionality depends on display manufacturer).

How do I update the firmware?

You can update via the web server: go to System and under Firmware Update, click Choose File to select the firmware file, then click Update. Alternatively, use the USB method: press and hold the INPUT button while connecting a USB cable from the HOST USB port to a computer, then drag the firmware file to the virtual drive.

USER MANUAL AT-OME-MH21-CP Atlona

for HDMI and USB-C with USB Hub

Version Information

Version Release Date Notes

7 Jul 2024 Updated EDIDs for firmware 1.0.6

Sales, Marketing, and Customer Support

Main Office

Atlona Incorporated

70 Daggett Drive

San Jose, CA 95134

United States

Office: +1.408.962.0515

Sales and Customer Service Hours

Monday - Friday: 6:00 a.m. - 4:30 p.m. (PST)

https://atlona.com/

International Headquarters

Atlona International AG

Tödistrasse 18

8002 Zürich

Switzerland

Office: +41.43.508.4321

Sales and Customer Service Hours

Monday - Friday: 09:00 - 17:00 (UTC +1)

Operating Notes

IMPORTANT: Visit https://atlona.com/product/at-ome-mh21/ or https://atlona.com/product/at-ome-mh21-cp/ for the latest firmware updates and User Manual.

Warranty

To view the product warranty, use the following link or QR code:

https://atlona.com/warranty/.

Safety and Certification

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCT THE RISK OF

ELECTRIC SHOCK

DO NOT OPEN ENCLOSURE OR EXPOSE

TO RAIN OR MOISTURE

NO USER-SERVICEABLE PARTS

INSIDE REFER SERVICING TO

QUALIFIED SERVICE PERSONNEL.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying the product.

The information bubble is intended to alert the user to helpful or optional operational instructions in the literature accompanying the product.

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this product near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

8. Do not install or place this product near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of a 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.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the product.
11. Only use attachments/accessories specified by Atlona.
12. To reduce the risk of electric shock and/or damage to this product, never handle or touch this unit or power cord if your hands are wet or damp. Do not expose this product to rain or moisture.
13. Unplug this product during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the product 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 product, the product has been exposed to rain or moisture, does not operate normally, or has been dropped.

CE

FC

cULus

CCC

©

[RECYC: 7.0%]

FCC Compliance

FCC Compliance and Advisory Statement: This hardware 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. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed or 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: 1) reorient or relocate the receiving antenna; 2) increase the separation between the equipment and the receiver; 3) connect the equipment to an outlet on a circuit different from that to which the receiver is connected; 4) consult the dealer or an experienced radio/TV technician for help. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Where shielded interface cables have been provided with the product or specified additional components or accessories elsewhere defined to be used with the installation of the product, they must be used in order to ensure compliance with FCC regulations.

Copyright, Trademark, and Registration

© 2023 Atlona Inc. All rights reserved. "Atlona" and the Atlona logo are registered trademarks of Atlona Inc. Pricing, specifications and availability subject to change without notice. Actual products, product images, and online product images may vary from images shown here.

The terms HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI licensing Administrator, Inc.

Dolby, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation.

For DTS patents, see http://patents.dts.com. Manufactured under license from DTS, Inc. DTS, the Symbol, DTS and the Symbol together, and Digital Surround are registered trademarks and/or trademarks of DTS, Inc. in the United States and/or other countries. © DTS, Inc. All Rights Reserved.

All other trademark(s), copyright(s), and registered technologies mentioned in this document are the properties of their respective owner(s).

Table of Contents

Introduction 7

Features 7

Package Contents 7

Panel Description 8

AT-OME-MH21 8

AT-OME-MH21-CP 9

Installation 10

Audio 10

RS-232 / IR 11

Connection Instructions 12

Connection Diagram 13

IP Configuration 14

Switching the IP Mode 14

Displaying the IP Address 14

Setting the IP Address using the Web Server 15

Auto IP Mode 16

Resetting to Factory-Default Settings 16

Device Operation 17

LED Indicators 17

Web Server 18

Registration 18

Logging In 19

Selecting the Input 20

Auto Switching 21

Enabling / Disabling Auto Switching 21

Scaling 22

Notes on Scaling 23

Audio Management 24

Audio Output Muting 24

De-embedding External Analog Audio 24

HDCP Content 25

EDID Management 26

Using the Downstream EDID 26

EDID Presets 27

Storing EDID Data 28

User Management 31

Changing the Administrator Password 31

Creating and Deleting User Accounts 32

System Configuration 33

Getting the MAC Address 33

Changing the Telnet Port 34

Telnet Login Mode 34

Adjusting Telnet Timeout 35

Setting the Host Name 36

Locking / Unlocking the Front Panel 37

Resetting to Factory-Default Settings 38

Downloading System Configuration 39

Restoring System Configuration 40

USB Modes 42

USB-C SuperSpeed Mode 42

Follow USB Mode 43

Manual Mode 44

Table of Contents

Configuration and Management Interfaces 45

Web Server 45

Info Page 45

I/O Settings Page 46

Display Page 48

RS-232 Page 52

EDID Page 53

Config Page 54

System Page 55

Appendix 58

Updating the Firmware 58

Using the Web Server 58

Using USB 60

Integration with the AT-OCS-900N 61

Mounting Instructions 63

Specifications 65

AT-OME-MH21 65

AT-OME-MH21-CP 68

Introduction

The Atlona AT-OME-MH21 is a compact, versatile switcher with HDMI and USB-C inputs. It is equipped with features for complete AV integration in huddle rooms and small meeting spaces, including automatic switching and display control, audio de-embedding, and a USB 3.0 hub for video conferencing peripherals or touch displays. Part of the Omega™ Series of integration products for modern AV communications and collaboration, the OME-MH21 is HDCP 2.2 compliant and supports 4K HDR and 4K/60 4:4:4 at HDMI data rates up to 18 Gbps. Additionally, 4K downscaling to 1080p @ 60, 30, or 24 Hz is available when connected to an HD display. The OME-MH21 includes USB 3.0 and USB-C interfaces for two host PCs, plus two USB Type-A ports for peripheral devices such as a camera, microphone, speakerphone, touch-enabled display, or keyboard and mouse.

The Atlona AT-OME-MH21-CP is identical, but provides up to 60 watts of device charging capability for laptops and mobile devices through the USB-C port.

Features

• Two-input AV switcher
  • USB-C input for AV and data
  • Integrated USB 3.0 hub
• Selectable 4K to 1080p downscaling
  • Automatic display control

• Automatic input selection using hot plug detect and video detection technology

- Delivers up to 60 watts of charging for laptops and mobile devices (AT-OME-MH21-CP only)

Package Contents

AT-OME-MH21

1 x AT-OME-MH21
1 x USB-C cable, 6.5 feet (2 meter)
1 x IR emitter
1 x 5-pin captive screw connector
1 x 4-pin captive screw connector
2 x Mounting brackets
4 x Mounting screws
4 x Rubber feet
1 x 5 V / 4 A DC power supply
1 x IEC power cord
1 x Installation Guide

AT-OME-MH21-CP

1 x AT-OME-MH21-CP
1 x USB-C cable, 6.5 feet (2 meter)
1 x IR emitter
1 x 5-pin captive screw connector
1 x 4-pin captive screw connector
2 x Mounting brackets
4 x Mounting screws
4 x Rubber feet
1 x 24 V / 5 A DC power supply
1 x IEC power cord
1 x Installation Guide

Panel Description

AT-OME-MH21

1 PWR

This LED indicator glows solid green when the unit is powered.

2 DISPLAY

Press and release this button to toggle power on the connected display.

3 INPUT

Press and release this button to toggle between the HDMI and USB-C input. A solid green LED indicator will display the currently active input. Each LED indicator corresponds to the input on the rear panel of the unit.

4 IP MODE

Press and release this button, next to the green LED indicator, to switch the IP mode between DHCP and static IP modes. The LED indicator will provide the current IP mode. Refer to IP Configuration (page 14) for more information.

5 RESET

Press and release this button to reset the unit to factory-default settings. Refer to Resetting to Factory-Default Settings (page 16) for more information.

6 SHOW IP

Press and release this button to display the IP address of the AT-OME-MH21 / AT-OME-MH21-CP on the connected display.

7 INPUT

Connect a USB-C source to the USB-C port. Connect an HDMI cable from the HDMI port to a UHD/HD source.

8 OUTPUT

Connect an HDMI cable from the HDMI output to a display or other sink device. Connect an audio output device to this port using the included 5-pin captive screw block. Refer to Audio (page 10) for wiring information.

9 USB HUB

Connect a USB device to each of these ports.

10 HOST USB

Connect to a computer using a USB-B to USB-A cable.

11 RS-232 / IR OUT

Connect the included 4-pin captive screw block to this receptacle. The RS-232 port provides RS-232 control for the AT-OME-MH21 / AT-OME-MH21-CP and the connected display. Refer to RS-232 / IR (page 11) for more information.

12 LAN

Connect an Ethernet cable to this port to control the unit.

13 DC 5V

Connect the included locking 5 V DC power supply to this power receptacle.

Panel Description

AT-OME-MH21-CP

1 PWR

This LED indicator glows solid green when the unit is powered.

2 DISPLAY

Press and release this button to toggle power on the connected display.

3 INPUT

Press and release this button to toggle between the HDMI and USB-C input. A solid green LED indicator will display the currently active input. Each LED indicator corresponds to the input on the rear panel of the unit.

4 IP MODE

Press and release this button, next to the green LED indicator, to switch the IP mode between DHCP and static IP modes. The LED indicator will provide the current IP mode. Refer to IP Configuration (page 14) for more information.

5 RESET

Press and release this button to reset the unit to factory-default settings. Refer to Resetting to Factory-Default Settings (page 16) for more information.

6 SHOW IP

Press and release this button to display the IP address of the AT-OME-MH21 / AT-OME-MH21-CP on the connected display.

7 INPUT

Connect a USB-C source to the USB-C port. Connect an HDMI cable from the HDMI port to a UHD/HD source.

8 OUTPUT

Connect an HDMI cable from the HDMI output to a display or other sink device. Connect an audio output device to this port using the included 5-pin captive screw block. Refer to Audio (page 10) for wiring information.

9 USB HUB

Connect a USB device to each of these ports.

10 HOST USB

Connect to a computer using a USB-B to USB-A cable.

11 RS-232 / IR OUT

Connect the included 4-pin captive screw block to this receptacle. The RS-232 port provides RS-232 control for the AT-OME-MH21 / AT-OME-MH21-CP and the connected display. Refer to RS-232 / IR (page 11) for more information.

12 LAN

Connect an Ethernet cable to this port to control the unit.

13 DC 24V

Connect the included 24 V DC power supply to this power receptacle.

Installation

Audio

The AT-OME-MH21 / AT-OME-MH21-CP provides two-channel LPCM audio de-embedding of the source device, using a dedicated audio output port. Use the included 5-pin captive-screw terminal block. Balanced audio connections use two signal wires and a ground to minimize interference in audio signals. Unbalanced output audio is not recommended and may require additional equipment.

Green 3D model of a mechanical connector with multiple slots and mounting holes (no text or symbols)

RS-232 / IR

The AT-OME-MH21 / AT-OME-MH21-CP provides control using RS-232 and/or IR. This step is optional.

1. Use wire strippers to remove a portion of the cable jacket.
2. Remove at least 3/16" (5 mm) from the insulation of the RX, TX, and GND wires for the RS-232 connection.
3. Insert the TX, RX, and GND wires into correct terminal using one of the included 4-pin captive screw connectors.
4. Repeat step 2 for the S and GND wires for the IR connection.
5. Insert the S (signal) wire in to the TX terminal and the ground wire to the GND terminal.
6. Tighten the captive screws to secure the wires in place. Do not over-tighten or use high-torque devices to prevent damage to the connector block.

NOTE: Typical DB9 connectors use pin 2 for TX, pin 3 for RX, and pin 5 for ground. On some devices functions of pins 2 and 3 are reversed. Note that the signal (S) pin for the IR is labeled as "TX" on the port.

Green 3D model of a mechanical connector or terminal block with three circular holes (no text or symbols)

NOTE: If connecting an IR emitter, the wire that has the white line marking is the signal line (S). The black wire is ground (GND).

Connection Instructions

NOTE: Connection instructions for both the AT-OME-MH21 and AT-OME-MH21-CP are identical, except for the type of power supply.

1. Connect a USB-C device to the INPUT 1 port.
2. Connect an HDMI cable from the INPUT 2 port to a UHD/HD source device.
3. Connect an HDMI cable from the HDMI OUTPUT port to a display device.
4. OPTIONAL: Connect an audio output device to this port using the included captive screw block. Refer to Audio (page 10) for wiring information.
5. Connect up to two USB devices to the USB HUB ports.
6. Connect a computer to the HOST USB port, using a USB-A to USB-B cable.
7. OPTIONAL: Connect a serial cable from RS-232 port to a display device. Refer to RS-232 / IR (page 11) for wiring information. Connect an IR emitter to the IR OUT port.
8. Connect an Ethernet cable to the LAN port to control the AT-OME-MH21 / AT-OME-MH21-CP.
9. Connect the included power supply from this receptacle to an available AC outlet. The AT-OME-MH21 uses a 5 V locking barrel connector. The AT-OME-MH21-CP uses a 24 V 4-pin DIN locking connector.

Installation

Connection Diagram

graph TD
    A["AT-CAP-FC110"] -->|USB HDMI| B["AT-OME-MH21-CP"]
    B -->|USB HDMI| C["Laptop"]
    B -->|USB HDMI| D["Laptop"]
    B -->|USB HDMI| E["Laptop"]
    F["Display"] --> B
    G["AT-CAP-FC110"] --> A
    H["Laptop"] --> B
    I["AT-CAP-SP100"] --> B

IP Configuration

The AT-OME-MH21 / AT-OME-MH21-CP is shipped with DHCP enabled. Once connected to a network, the DHCP server (if available), will automatically assign an IP address to the unit. Use an IP scanner, along with the MAC address on the bottom of the unit, to identify both the unit and its IP address on the network.

If the AT-OME-MH21 / AT-OME-MH21-CP is unable to detect a DHCP server within 15 seconds, then the unit will use a self-assigned IP address within the range 169.254.xxx.xxx/16. If this occurs, refer to Auto IP Mode (page 16) for more information.

If a static IP address is desired, the unit can be switched to static IP mode. Use one of the following procedures to switch between DHCP and static IP mode. The default static IP address of the AT-OME-MH21 is 192.168.1.254.

Switching the IP Mode

1. Make sure the AT-OME-MH21 / AT-OME-MH21-CP is powered and ready for operation.
2. Press and hold the IP MODE button.

1. Release the button once the IP MODE LED indicator begins to flash green. The number of flashes will indicate the currently selected IP mode.

Input LED Indicators flash	Description
Two	DHCP mode
Three	Static IP mode (192.168.1.254 is default)

NOTE: If a static IP address is set using the web server, then changing the IP mode through the front panel will toggle between DHCP mode and the assigned static IP address in the web server.

Displaying the IP Address

1. Make sure the unit is powered.
2. Connect a display to the HDMI output and power the display.
3. Press and release the SHOW IP button on the front panel. The IP address will be displayed in the upper-left corner of the display.

Installation

Setting the IP Address using the Web Server

The IP mode of the AT-OME-MH21 / AT-OME-MH21-CP can also be set using the built-in web server. In order to access the web server, the IP address of the AT-OME-MH21 / AT-OME-MH21-CP must be known. Refer to Web Server (page 18) for more information.

1. Open the desired web browser and enter the IP address of the AT-OME-MH21 / AT-OME-MH21-CP.
2. Login using the required credentials.
3. Click System in the menu bar.
4. Under the Network window group, click the IP Mode toggle switch to select either DHCP, or STATIC IP. The default setting is DHCP. If set to STATIC IP, the IP, Netmask, and Gateway fields can be modified.

By default, STATIC IP mode sets the IP settings to the following values:

IP Address: 192.168.1.254 Network Mask: 255.255.0.0 Gateway: 192.168.1.1

1. Click the Save button to commit changes.

Installation

Auto IP Mode

If the AT-OME-MH21 / AT-OME-MH21-CP is unable to detect a DHCP server within 15 seconds, then the unit will use a self-assigned IP address within the range of 169.254.xxx.xxx. If this occurs, connect an Ethernet cable directly from the LAN port of the AT-OME-MH21 / AT-OME-MH21-CP to the LAN port of a computer, then do the following under Microsoft Windows.

1. Click Start > Settings > Control Panel > Network and Sharing Center.
2. Click Change adapter settings.

3. Click the Use the following IP address radio button.

4. Right-click on the adapter that is used to establish a wired connection to the network, and select Properties from the context menu.

5. Under the Ethernet Properties dialog box, select Internet Protocol Version 4 and then click the Properties button.

IMPORTANT: Before continuing, write down the current IP settings in order to restore them, later. If Obtain an IP address automatically and Obtain DNS server automatically are selected, then this step is not required.

1. Enter the desired static IP address or the IP address provided by the network administrator. If the computer does not require Internet access or if a statically-assigned IP address is being used, then an IP address of 169.254.xxx.xxx can be entered.
2. Set the subnet mask to 255.255.0.0.
3. Click the OK button then close all Control Panel windows.

Resetting to Factory-Default Settings

1. Press and hold the RESET button for five seconds.
2. Release the RESET button once the RESET LED indicator begins to flash. The LED indicator will flash three times to indicate that the unit has been reset to factory-default settings.

Device Operation

LED Indicators

The LED indicators on both the front and rear of the unit provide basic information on the current status of the AT-OME-MH21 / AT-OME-MH21-CP.

LED Description
PWR Solid green	Unit is powered.Off·Unit is not powered.
INPUT Solid	The input is the currently selected (active) input.Off·The input is not active.
IP MODE	Flash green (2x)Flash green (3x)·Flashes three times to indicate that the unit is being set to DHCP mode. Refer to IP Configuration (page 19) for more information.Off·Normal operating mode.	Flashes twice to indicate that the unit is being set to DHCP mode. Refer to IP Configuration (page 19) for more information.
RESET	Flash green (3x)Off·Normal operating mode.	Unit is being set to factory-default settings. Refer to Resetting to Factory-Default Settings (page 16) for more information.

Web Server

Most of the AT-OME-MH21 / AT-OME-MH21-CP operation is handled through the built-in web server. In order to access the web server, the IP address of the unit must be known. Refer to IP Configuration (page 14) for more information. Before using the web server, it must be registered with a username and password.

Registration

1. Launch a desired web browser and enter the IP address of the AT-OME-MH21 / AT-OME-MH21-CP in the address bar.
2. Enter the desired username in the Username field. In the example below, the username admin is used.

IMPORTANT: The password must contain a minimum of 8 characters, including: 1 uppercase character, 1 lowercase character, and 1 number.

1. Enter the desired password in the Password field.

2. Verify the password by entering it in the Confirm field.

1. Click the Submit button.
2. The Login page will be displayed.
3. Registration is complete.

Device Operation

Logging In

Before logging in to the web server, make sure the registration process has been completed. Refer to Registration (page 18) for more information.

1. Launch the desired web browser and enter the IP address of the AT-OME-MH21 / AT-OME-MH21-CP in the address bar.
2. Enter the correct username and password in the respective fields.

NOTE: If using a secure connection, click the Toggle HTTP/HTTPS button.

1. Click the Submit button.
2. The Info page will be displayed and the login process is complete.

Selecting the Input

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click I/O Settings in the menu.
3. Under the Output window group, click the Input Selection drop-down list to select the desired input.

Selecting A/V Mute will disable the audio and video output on both the HDMI and analog output ports.

Auto Switching

The AT-OME-MH21 / AT-OME-MH21-CP provides auto switching capability, which is enabled by default. This feature will automatically switch the input to the most recently-connected source. If a source is disconnected, then the input will automatically be switched to the previously-connected source.

Enabling / Disabling Auto Switching

By default, auto-switching is enabled on the AT-OME-MH21 / AT-OME-MH21-CP, allowing the unit to automatically switch between inputs when sources are connected or disconnected.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click I/O Settings in the menu bar.
3. Click the Auto Switch mode toggle switch to the ON position to enable auto-switching. This is the default setting. If auto switching is not desired, click this toggle switch to the OFF position.

NOTE: The AT-OME-MH21 / AT-OME-MH21-CP retains the currently selected input, even after the unit is powered-off then powered-on. The system will re-evaluate the auto switching logic after power on and select an input.

1. Auto switching configuration is complete.

Scaling

Click this toggle switch to enable or disable the scaling feature. When set to the ON position, 4K content will be down-scaled to 1080p. When set to the OFF position, the output resolution / timing will be the same as the input source. The default setting is OFF.

IMPORTANT: The scaler will only downscale the image resolution and does not support frame rate scaling/conversion such as 60 Hz to 30 Hz. The frame rate of the source must be supported by the display device.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click I/O Settings in the menu bar.
3. Click the Scaler toggle switch.

1. Click the toggle switch again, to return the Scaler toggle to the OFF (default) position.

Device Operation

Notes on Scaling

The following section provides important information about how the AT-OME-MH21 / AT-OME-MH21-CP processes 4K (UHD) video signals.

• The HDMI OUTPUT port supports up to 4K @ 60 Hz, 12-bit, with HDR.
- If the source is 4K, and the HDMI OUTPUT port is connected to a 1080p (not 4K-capable) display, then the output will be down-scaled as follows:

Input Output

4K @ 24 Hz 1080p @ 24 Hz

4K @ 30 Hz 1080p @ 30 Hz

4K @ 60 Hz, 4:2:0 1080p @ 60 Hz, YUV/RGB 4:4:4

• HDR / Dolby Vision / HLG formats cannot be down-scaled to 1080p. If the source content has HDR, then the color saturation on the video output my appear "washed out".
• The internal scaler will be bypassed if the connected display supports the resolution and timing information from the source device.

Audio Management

The AT-OME-MH21 / AT-OME-MH21-CP provides control over audio muting on both the HDMI and ANALOG outputs.

Audio Output Muting

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click I/O Settings in the menu bar.

3. Locate the Audio Mute section.

4. Click the toggle switch for the desired output. For example, to mute the audio output on the HDMI output, set this toggle switch to the ON position. To re-enable the audio for the output, set the toggle switch to the OFF position.

De-embedding External Analog Audio

Digital audio can be de-embedded from the HDMI or USB-C inputs and output to an external audio device over the analog OUTPUT port. De-embedded audio is limited to analog two-channel audio. LPCM multichannel audio is downmixed to two-channel LPCM audio. Refer to the Audio (page 10) for wiring information.

HDCP Content

Normally, if a source is transmitting HDCP content to a display that is not HDCP-compatible, then the resulting image on the display can be "snow", image flickering, or no picture. For example, in the illustration below, a blu-ray player is connected to the AT-OME-MH21 / AT-OME-MH21-CP. A non-compliant display is connected to a receiver, which is connected to the AT-OME-MH21 / AT-OME-MH21-CP using HDMI.

IMPORTANT: Not all source devices are capable of transmitting non-HDCP content. For example, Sony PlayStation® gaming consoles and Apple® computers will always default to HDCP. However, if they detect a non-hdcp source, non-hdcp content will be transmitted.

graph LR
    A["Blu-ray Player"] -->|Data Flow| B["AT-OME-MH21"]
    B -->|Data Flow| C["Non-Compliant HDCP Display"]

By default, the laptop may transmit HDCP content. However, when connected to a display that does not support HDCP, the laptop must be instructed to send non-HDCP content, in order for the content to be displayed.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click I/O Settings in the menu bar.
3. Locate the Input section.
4. Click the toggle switch next to the desired input. In this example, clicking the USB-C 1 toggle switch and setting it to the OFF position will instruct the source connected to the USB-C port to send non-HDCP content, if possible. If the display is unable to receive HDCP content, then a green splash screen will appear on the connected display, with the following message:

HDCP INCOMPATIBILITY

Input

HDCP Settings

USB-C 1

HDMI 2

Helptip:

This section is meant for applications where Video conferencing system is connected to the video output of the MH21.

EDID Management

Before a source can send picture and sound to a display device, the source reads the EDID (Extended Display Identification Data) stored in the display. The EDID contains information about what type of video and audio formats are supported by the display. The AT-OME-MH21 / AT-OME-MH21-CP can use either the downstream EDID (from the display/sink) or use a built-in EDID preset. Custom EDID data can also be stored in a user-defined preset. This section will cover each of the following topics:

• EDID Presets
• Using the Downstream EDID
- Storing EDID Data

Using the Downstream EDID

By default, the AT-OME-MH21 / AT-OME-MH21-CP will read the EDID from the display device. The term "downstream" is used to describe any device that receives a signal from another device. For example, if a Blu-ray player is connected to a display, the display is said to be "downstream" of the Blu-ray player.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click EDID in the menu bar.
3. Locate the EDID Settings section.
4. Click the drop-down list next to the desired input and select Connected Displays. For example, to have the USB-C 1 port use the EDID of the connected display, click the Input 1 drop-down list and select Connected Displays.

1. Downstream EDID configuration is complete.

EDID Presets

The AT-OME-MH21 / AT-OME-MH21-CP provides the option of selecting a preset EDID. The following presets are available. For information on the Mem 1 setting, refer to Storing EDID Data (page 28).

IMPORTANT: If problems are encountered when using an EDID preset, try using the default setting of Connected Displays.

EDID Preset
Connected Displays The default setting	uses the EDID of the connected display
ATL 5120x2160 5120 x 2160 @ 30 Hz with two-channel audio support.
ATL 3840x2160P60 2CH, HDR 3840 x 2160 @ 60 Hz with two-channel audio and HDR support
ATL 3440x1440 2CH 3440 x 1440 @ 50 Hz with two-channel audio support.
ATL 2560x1080 2CH 2560 x 1080 @ 60 Hz with two-channel audio support.
ATL 1920x1200 2CH 1920 x 1200 @ 60 Hz with two-channel audio support.
ATL 1920x1080P 2CH 1920 x 1080 @ 60 Hz with two-channel audio support.
ATL 1366x768 PCM 1366 x 768 @ 60 Hz with two-channel audio support.
ATL 1280x800 PCM 1280 x 800 @ 60 Hz with two-channel audio support.
ATL 1280x720 PCM 1280 x 720 @ 60 Hz with two-channel audio support.
ATL 1024x768 PCM 1024 x 768 @ 60 Hz with two-channel audio support.
Mem 1 EDID memory storage

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click EDID in the menu bar.
3. Locate the EDID Settings section.
4. Click the drop-down list, next to the port that is connected to the display device, and select the desired EDID preset. For example, to have the USB-C 1 port use a specific EDID, click the Input 1 drop-down list.

1. EDID preset selection is complete.

Device Operation

Storing EDID Data

The AT-OME-MH21 / AT-OME-MH21-CP provide a single memory location which can be used to store EDID data. Any downstream EDID can be captured and stored in these locations. The memory location is non-volatile and captured EDID data is retained after power is disconnected from the unit.

1. Connect an HDMI cable from the HDMI OUT port on the AT-OME-MH21 / AT-OME-MH21-CP to the HDMI input on the display, containing the EDID to be stored.
2. Login to the web server. Refer to Web Server (page 18) for more information.
3. Click EDID in the menu bar.
4. Locate the EDID Saved section.

graph TD
    A["AT-OME-MH21"] -->|HDMI| B["Computer monitor"]
    B --> C["Display with EDID data to be captured"]

1. Click the drop-down list and select Output 1, which refers to the HDMI OUTPUT port on the AT-OME-MH21/AT-OME-MH21-CP.

1. Click the Save button next to the drop-down list for the memory location.

1. The saved EDID will appear next to the memory location, as shown below.

1. Click any of the input drop-down list boxes, under the EDID Settings window group. Note that the stored EDID appears as an available EDID preset for each available input on the AT-OME-MH21 / AT-OME-MH21-CP.

1. The EDID storing procedure is completed.

NOTE: Once an EDID is written to a memory location, it can be overwritten with a different EDID, when desired. To overwrite an EDID with a different EDID, repeat steps 5 through 7, above.

User Management

The AT-OME-MH21 / AT-OME-MH21-CP allows the administrator password to be changed, as well as the ability to create and remove user accounts.. Passwords apply to both the web server and Telnet sessions. The username for the administrator account cannot be changed.

Changing the Administrator Password

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click Config in the menu bar.
3. Click the Old Password field and enter the current password.

1. Enter the new password in the New Password field.
2. Retype the new password in the Confirm New Password field.
3. Click the Save button to commit changes. To login with the new username, click Logout in the upper-right corner of the screen, then enter the new password on the Login page.

NOTE: Password fields will always be masked for security purposes.

Creating and Deleting User Accounts

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click Config in the menu bar.
3. Click the Add button, under the Edit column.

1. Enter the desired username and password in the Username&Password Edit dialog box.
2. Click the Save Change button to commit changes or click the Cancel button to return to the Config page without adding the user.

Once created, the new user and the associated password will appear under the All User Login Settings section. To login with the new username, click Logout in the upper-right corner of the screen, then enter the login credentials for the user on the Login page.

1. To delete a user, click the Remove button under the Del column.

System Configuration

The AT-OME-MH21 / AT-OME-MH21-CP provides easy access to system configuration through the built-in web server, and is the recommended method to adjust network settings.

Getting the MAC Address

1. Login to the web server. Refer to Web Server (page 18) for more information.

2. Click System in the menu bar.

3. Locate the MAC address field, as shown below. This is the hardware address of the AT-OME-MH21 / AT-OME-MH21-CP.

Device Operation

Changing the Telnet Port

Typically, the Telnet service is assigned to TCP port 23. This is the default setting for the AT-OME-MH21 / AT-OME-MH21-CP. However, depending upon the network environment, the default Telnet port can be changed.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Locate the Telnet Port field and enter the desired port in the field.
4. Click Save to commit changes.

Network

MAC Address: B8-98-B0-06-88-29

IP Mode:

DHCP

IP:

10.20.40.112

Save

Netmask:

255.255.255.0

Gateway:

10.20.40.1

Telnet Port:

23

Telnet Login Mode

When a Telnet session is request, the AT-OME-MH21 / AT-OME-MH21-CP provides the option to prompt for user credentials or bypass authentication before the Telnet session begins. This credentials prompt option can be enabled or disabled. When prompting for user credentials, use the same login information required by the built-in web server.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.

3. Click the Telnet Login Mode toggle switch.

4. Set this toggle switch to ON to prompt for user credentials.

5. Set this toggle switch to OFF to bypass user credentials request.

6. Click Save to commit changes.

Device Operation

Adjusting Telnet Timeout

When a Telnet session is active, the AT-OME-MH21 / AT-OME-MH21-CP can be set to monitor Telnet activity. If there is no activity within the specified time interval, the Telnet session will automatically be terminated, adding a measure of security.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Telnet Timeout drop-down list and select the desired time-out interval. Values from 10 to 3600 seconds can be selected.

IMPORTANT: If Never is selected, then the Telnet port will stay open until the Telnet session is manually terminated.

1. Click Save to commit changes.

Device Operation

Setting the Host Name

By default, the AT-OME-MH21 / AT-OME-MH21-CP is assigned a hostname, which is constructed as follows:

OMEMH21-[last six digits of MAC address]

For example, a default hostname might look like this: OMEMH21-00021B. This value can be changed to easily identify the AT-OME-MH21 / AT-OME-MH21-CP within the Atlona Management System (AMS) or a network. If using a custom hostname, it must meet the hostname standards, defined here: https://tools.ietf.org/html/rfc1123

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Hostname field and enter the desired name.
4. Click Save to commit changes.

Device Operation

Locking / Unlocking the Front Panel

To prevent accidental pressing of the front panel buttons, the front panel buttons can be locked. This may be desirable if, for example, the AT-OME-MH21 / AT-OME-MH21-CP is installed in a rack environment. By default, the front panel buttons are unlocked.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Front Panel Lock toggle switch to lock the buttons on the front panel. When the front panel is locked, the toggle switch will display the LOCK setting.

1. To unlock the front panel, click the Front Panel Lock toggle switch again to set it to UNLOCK.

Resetting to Factory-Default Settings

The following procedure will reset the AT-OME-MH21 / AT-OME-MH21-CP to factory-default settings. The network IP mode will be set to DHCP mode.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Factory Default button.

1. The following message will be displayed at the top of the screen. Click OK to continue with the factory-default reset procedure. Click Cancel to abort the process.

1. Once the factory-default process is complete, the web server Login screen will be displayed.
2. The reset process is complete.

Device Operation

Downloading System Configuration

The AT-OME-MH21 / AT-OME-MH21-CP allows the current system configuration to be downloaded to the connected computer, in .json format. Multiple configurations can be saved and then restored at any time. Refer to Restoring System Configuration (page 40) for more information.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Download button.

1. After a few moments, the Save As dialog will be displayed. The filename name field will be automatically be filled in with the a default filename, similar to: AT-OME-MH21_OMEMH21-068829.json. The filename can be changed, but the file extension of .json must exist. The OMEMH21-068829 portion of the filename is the unit host name.
2. Click the Save button to save the file to the desired folder on the computer.

Restoring System Configuration

Once a system configuration has been saved as an .json file, the file can be uploaded to the AT-OME-MH21 / AT-OME-MH21-CP, allowing a system configuration to be restored. Both the Export Configuration and Import Configuration feature are useful for saving and loading different configurations and/or to provide a backup, in the unlikely event of a system failure. When a system configuration file is uploaded, it will overwrite the current settings.

IMPORTANT: IP Mode information is stored as part of the configuration file. Therefore, caution should be exercised when sharing configuration files between multiple AT-OME-MH21 / AT-OME-MH21-CP units. If the unit is set to static IP mode, then restoring multiple units with the same configuration file will result in the same IP address being shared between multiple units, causing an IP conflict on the network.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Choose File button, under Import Configuration.

1. The Open dialog will be displayed. Select the desired system configuration file. Once the file is selected, the selected filename will appear next to the Choose File button.
2. Click the Upload button to upload the configuration file to the AT-OME-MH21 / AT-OME-MH21-CP. The following warning message will be displayed:

10.20.40.112 says

Warning! This operation will overwrite current configuration.

Do you really want to continue?

Device Operation

1. Click the OK button to continue or click Cancel to abort the operation.
2. One the upload has started, a progress message will be displaying the restore process.
3. The restoration process is complete.

USB Modes

USB-C SuperSpeed Mode

The USB-C port can be set to enable or disable USB SS (Super Speed) mode. USB SS mode is enabled by default. Refer to the table below for details.

USB SuperSpeed Maximum Resolution Maximum Data Rate
ON (enabled) 4096x2048 @ 30 Hz U	SB 3.0 data up to 5Gb/s
OFF (disabled) 4096x2048 @ 60 Hz	USB 2.0 data up to 480 Mb/s

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Enable toggle, under USB SuperSpeed, to the ON position to enable USB SS mode. Click this toggle switch to the OFF position to disable USB SS mode.

Follow USB Mode

This is the default mode and functions similar to auto-switching for video. In this mode, the AT-OME-MH21 / AT-OME-MH21-CP will detect which USB ports are connected to a host device. If both USB host ports are connected to host devices, then the AT-OME-MH21 / AT-OME-MH21-CP will set the last-connected USB host device as the "active" USB host. Use the procedure below to enable Follow USB mode.

1. Connect the host computers to the USB host ports, as desired. Note that it is not required that both the HOST USB and USB-C ports be connected to host devices.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. The Follow USB check box should already be checkmarked, indicating that the feature is enabled.

Once set to Follow USB mode, the AT-OME-MH21 / AT-OME-MH21-CP will exhibit the following behavior:

• If only one USB host port is connected, then the AT-OME-MH21 / AT-OME-MH21-CP will use the USB host device connected to that port.
• If an another USB host device is connected to the vacant USB port, then the AT-OME-MH21 / AT-OME-MH21-CP will automatically switch to that USB host device.
• If both HOST USB and USB-C ports are connected, then the AT-OME-MH21 / AT-OME-MH21-CP will switch to the USB port that was connected last.
• If both HOST USB and USB-C host ports are connected, and one USB host port is disconnected, then the AT-OME-MH21 / AT-OME-MH21-CP will automatically switch to the opposite USB host port.

Manual Mode

This mode provides manual selection of the USB host port to be used.

1. Connect the host computers to the USB host ports, as desired. Note that it is not required that both USB host ports be connected to host devices.

1. Login to the web server. Refer to Web Server (page 18) for more information.
2. Click System in the menu bar.
3. Click the Manual check box.
4. Click the drop-down list, under the Manual check box and select the desired USB port.

1. Manual USB configuration is complete.

Configuration and Management Interfaces

Web Server

Info Page

The Info page provides various information about the AT-OME-MH21 / AT-OME-MH21-CP, including software version and video information.

Model Name

The model SKU of this product.

Software Version

The version of firmware that the AT-OME-MH21 / AT-OME-MH21-CP is running. Always make sure to check the AT-OME-MH21 / AT-OME-MH21-CP product page, on the Atlona web site, for the latest version of firmware.

On-Time(d-h:m:s)

Displays how long the system has been powered since the last reboot/reset.

Active Input

The currently selected (active) input.

Signal Type

The type of input signal.

Video Format

The input resolution of the source device.

Aspect

Aspect ratio of the input signal.

Color Space

Displays the color space and chroma sub-sampling of the input signal.

Color Depth

The color depth of the input signal.

Configuration and Management Interfaces

I/O Settings Page

Auto Switch

Click this toggle switch to enable or disable auto-switching. When enabled, the AT-OME-MH21 / AT-OME-MH21-CP will automatically switch to the another input, if the signal is disrupted on the currently active input.

Input Selection

Click this drop-down list to manually select the desired input.

Input Description

USB-C 1 Sets INPUT 1 as the active input.

HDMI 2 Sets INPUT 2 as the active input.

A/V Mute Mutes both audio and video on the output.

Audio

Manages audio settings for inputs and outputs.

• HDMI

Set this toggle to the ON position to mute the audio on the output. The default setting is OFF.

- Analog

Set this toggle to the ON position to mute the audio on the ANALOG output. The default setting is OFF.

Scaler

Click this toggle switch to enable or disable the scaler pass-through feature. When set to the ON position, 4K content will be down-scaled to 1080p. When set to the OFF position, the output resolution / timing will be the same as the input source. The default setting is ON.

Configuration and Management Interfaces

HDMI Output +5V

Sets the +5V pin on the HDMI connector to the desired setting.

Setting Description

On When Signal Present Allows the +5V pin on the HDMI output to toggle, based on the presence of an input video signal.

Always On Forces the +5V pin on the HDMI output to “high” (always on).

HDCP

Each input provides control of how HDCP content is handled. Some source devices will send HDCP content if an HDCP-compliant display (sink) is detected. However, there may be applications where sending HDCP content is not desired. Setting the port to the OFF position, will instruct the source to send non-HDCP content to the display. Note that not all sources have this capability.

NOTE: Setting this feature to OFF, for any source, does not provide decryption of HDCP content to non-HDCP compliant sink devices. Sources such as Mac® computers and the Sony PlayStation® will always transmit HDCP content.

• ON

When set to ON, the source will have the ability to transmit HDCP content to the AT-OME-MH21 / AT-OME-MH21-CP.

• OFF

When set to OFF, non-HDCP content will be transmitted (if possible) to the AT-OME-MH21 / AT-OME-MH21-CP.

Configuration and Management Interfaces

Display Page

This page provides controls for CEC, device timers, and configuration for controlling external devices.

CEC Command - HDMI Output

- Power

Click the ON button to send the power-on command to the display device. Click the OFF button to toggle the power state to off.

• Volume

Click the + or - button to increase or decrease the output volume, respectively. Click the Mute button to mute the audio.

Consumer Electronics Control (CEC) Note: Atlona has confirmed proper CEC functionality with several current models of Samsung, Panasonic, and Sony displays. However, it is not guaranteed that CEC will work with all displays. Many manufacturers do not support the CEC "off" command, and older displays use proprietary commands. Atlona only supports displays that use the CEC command structure defined in HDMI 1.2a. It is recommended that dealers request an evaluation product from Atlona, before designing a system using the CEC protocol. If this is not possible, then other control methods will need to be considered, in order to control displays using Atlona products.

Configuration and Management Interfaces

Display Auto Power On

Set this toggle to ENABLED to allow the AT-OME-MH21 / AT-OME-MH21-CP to send the power-on command to the display when an A/V signal is detected. When the AV signal is no longer present, the AT-OME-MH21 / AT-OME-MH21-CP will send the power-off command to the display. If this feature is not desired, then set to DISABLED. This feature is disabled by default.

Auto power off timer

Sets the time interval before the command to power-off the display is sent, when an A/V signal is no longer present. The default value is 15 seconds. Available values are 5 seconds to 1 hour.

Lamp cool down timer (Sec.)

Sets the projector lamp cool-down timer, in seconds. This value specifies the time interval that must elapse, after the display control "off" command is sent, before the display "power on" command can be sent. This feature is used to prevent the projector from missing a "power on" command while the lamps are cooling. Available values are 10 to 300 seconds. The default setting is 10 seconds.

Display Warm-Up Timer (Sec.)

Sets the projector lamp warm-up timer, in seconds. During the warm-up interval, the AT-OME-MH21 / AT-OME-MH21-CP will not start the auto power-off timer. This value specifies the time interval that must elapse, after the display control "on" command is sent, before the display "power off" command can be sent. This feature is used to prevent a "power off" command from being sent while the lamps are warming up. Available values are 10 to 300 seconds. The default value is 10 seconds.

Control Type

Sets the control protocol for the connected display. Click this drop-down to select the control type. Available settings are RS-232, IP, CEC, and IR. By default, CEC is selected for control of the display. When IP, RS-232, or IR is selected, more fields are displayed.

TCP/IP Settings of Control Device

This window group is only available if the Control Type drop-down list is set to IP.

IP Mode

Click this drop-down list to select the login mode.

Setting Description

Non-login Does not require a username and password when using TCP/IP to control the display.

Login Requires a username and password to control the display through TCP/IP.

IP Address

Enter the IP address of the device in this field.

Port

Enter the listening port of the device in this field.

Username

Enter the username for login. If the IP Mode is set to Non-Login, then this information will not be required.

Password

Enter the password for login. If the IP Mode is set to Non-Login, then this information will not be required.

Save

Click this button to save all changes in this window group.

Configuration and Management Interfaces

RS-232/IP commands

This section is only available when the Control Type is set to either RS-232 or IP.

Manufacturer

Click this drop-down list to select the display manufacturer. If the display device being controlled is not in this list, then select Generic and enter the commands manually.

Generic Hitachi Qomo
Acer Infocus Samsung
Barco LG Sharp
Benq NEC Sony
Canon Optima Toshiba
Casio Panasonic ViewSonic
Eiki Pjlink Vivitek
Epson Planar

Products

Click this drop-down list to select the product. The options available within this drop-down list are dependent upon the selected value in the Manufacturer drop-down list.

Model

Click this drop-down list to select the model. The options available within this drop-down list are dependent upon the selected value in the Products drop-down list.

Repeat Command

- Status

Click this toggle switch to set to ENABLE or DISABLED. Enabling this feature will re-send the command. Specify the number of times that the command is transmitted by setting the Times value. This feature is set to DISABLED by default.

- Times

Click this drop-down list to specify the number of times the command is sent. When the Status toggle switch is set to ENABLE, the default number of times is set to 2.

ON, OFF, Volume+, Volume-, Mute, Mute on, Mute off

These fields will need to be populated with the correct strings (either hex or ASCII format) for each function, which control the display device. If hexadecimal values are used, then use the /x delimiter at the end of the command string.

Save

Click this button to commit changes.

Revert

Click this button to undo changes to any pre-configured strings.

Configuration and Management Interfaces

IR commands

This section is only available when the Control Type is set to IR.

NOTE: Manufacturer IR commands and Pronto codes are supported.

Manufacturer

Click this drop-down list to select the display manufacturer. Over 350 manufacturers are supported. If the display device being controlled is not in this list, then select Generic and enter the commands manually.

Products

Click this drop-down list to select the product. The options available within this drop-down list are dependent upon the selected value in the Manufacturer drop-down list.

Model

Click this drop-down list to select the model. The options available within this drop-down list are dependent upon the selected value in the Products drop-down list.

ON, OFF, Volume+, Volume-, Mute, Mute on, Mute off

These fields will need to be populated with the correct strings (either hex or ASCII format) for each function, which control the display device. If hexadecimal values are used, then use the /x delimiter at the end of the command string.

Save

Click this button to commit changes.

Revert

Click this button to undo changes to any pre-configured strings.

Occupancy Sensor Control

The AT-OME-MH21 / AT-OME-MH21-CP supports the AT-OCS-900N occupancy sensor. This feature is supported on firmware version 1.0.5 or later. Refer to Integration with the AT-OCS-900N (page 61) for instructions on connecting to the occupancy sensor.

IP Address

Enter the IP address of the AT-OCS-900N in this field.

Port

The port number used to communicate with the AT-OCS-900N.

Add

Click this button to add the AT-OCS-900N to the AT-OME-MH21 / AT-OME-MH21-CP. Up to three occupancy sensors are supported.

Configuration and Management Interfaces

RS-232 Page

This page provides settings for local RS-232 control.

RS-232 Parameter Setting

RS-232 settings for local or HDBaseT RS-232 control.

- RS232 Console

Sets the RS-232 port settings used for local control by a third-party control system.

Setting Description
Baud rate Sets the baud rate.	The following options are available: 2400, 9600, 19200, 38400, 57600, 115200.
Data bit Sets the number of data bits used to represent each character of data. The following options are available: 7 or 8.
Parity Sets the parity bit, which can be included with each character to detect errors during the transmission of data. The following options are available: None, Odd, or Even.
Stop bit Sets the stop bit.	Stop bits are sent at the end of each character, allowing the client to detect the end of a character stream. The following options are available: 1 or 2.

- Save

Click this button to commit all changes.

Configuration and Management Interfaces

EDID Page

This page provides controls for selecting and storing EDID data. Refer to EDID Management (page 26) for more information.

EDID Settings

Click these drop-down lists to select the desired EDID to be used for each input. The following EDID presets are available. When selecting an EDID, make sure that the display/sink device is capable of supporting the resolution/timing. If the sink device is not able to support a feature, then the source will not be displayed. Selecting the Connected Displays EDID will provide the most compatible settings for most displays. In addition, three memory locations are available for storing captured EDID data. If an EDID is stored in a memory location, it will also be added to the list available EDID selections.

EDID Preset
Connected Displays The default setting	uses the EDID of the connected display
ATL 5120x2160 5120 x 2160 @ 30 Hz with two-channel audio support.
ATL 3840x2160P60 2CH, HDR 3840 x 2160 @ 60 Hz with two-channel audio and HDR support
ATL 3440x1440 2CH 3440 x 1440 @ 50 Hz with two-channel audio support.
ATL 2560x1080 2CH 2560 x 1080 @ 60 Hz with two-channel audio support.
ATL 1920x1200 2CH 1920 x 1200 @ 60 Hz with two-channel audio support.
ATL 1920x1080P 2CH 1920 x 1080 @ 60 Hz with two-channel audio support.
ATL 1366x768 PCM 1366 x 768 @ 60 Hz with two-channel audio support.
ATL 1280x800 PCM 1280 x 800 @ 60 Hz with two-channel audio support.
ATL 1280x720 PCM 1280 x 720 @ 60 Hz with two-channel audio support.
ATL 1024x768 PCM 1024 x 768 @ 60 Hz with two-channel audio support.
Mem 1 EDID memory storage

EDID Saved

The AT-OME-MH21 / AT-OME-MH21-CP provides one memory location for storing captured EDID data. Click this drop-down lists to select and store the external EDID.

Configuration and Management Interfaces

Config Page

The Config page provides management of the administrator password. The administrator username ("admin") cannot be changed. Refer to User Management (page 31) for more information.

Old Username

This field cannot be changed. "admin" is the administrator user.

Old Password

Enter the current password for the "admin" username in this field. The default password is "Atlona".

New Password

Enter the new password for the "admin" username in this field.

Confirm New Password

Verify the new password by retyping it in this field.

Save

Click this button to commit all changes.

Configuration and Management Interfaces

System Page

The System page is divided into two sections: Network and System. The Network section allows configuration of the IP settings of the AT-OME-MH21 / AT-OME-MH21-CP. The System section provides controls for resetting the AT-OME-MH21 / AT-OME-MH21-CP to factory-default settings and updating the firmware.

MAC Address

This field displays the MAC address of the AT-OME-MH21 / AT-OME-MH21-CP.

IP Mode

Click this toggle switch to set the AT-OME-MH21 / AT-OME-MH21-CP to DHCP or STATIC IP mode. The default setting is DHCP mode.

IP

Enter the IP address of the AT-OME-MH21 / AT-OME-MH21-CP in this field. This field will only be available when IP Mode is set to

STATIC IP. The default static IP address of the AT-OME-MH21 / AT-OME-MH21-CP is 192.168.1.254.

Netmask

Enter the subnet mask of the AT-OME-MH21 / AT-OME-MH21-CP in this field. This field will only be available when IP Mode is set to STATIC IP.

Gateway

Enter the gateway (router) IP address in this field. This field will only be available when IP Mode is set to STATIC IP.

Telnet Port

Enter the desired Telnet port (for Telnet sessions) in this field. The default port is 23. Refer to Changing the Telnet Port (page 34) for more information.

Configuration and Management Interfaces

Telnet Login Mode

Click this toggle switch to set the Telnet Login Mode to ON or OFF. If set to ON, then login credentials (same as web server) will be required when starting a Telnet session.

Telnet Timeout

Click this drop-down list to select the timeout interval, in seconds. Range is: 10 to 3600 seconds, or Never. Refer to Adjusting Telnet Timeout (page 35) for more information.

Hostname

Displays the hostname of the AT-OME-MH21 / AT-OME-MH21-CP, as it would appear on a network. To change the hostname, type the new hostname in this field and click the Save button. Refer to Setting the Host Name (page 36) for more information.

USB SuperSpeed

Click the Enable toggle switch to the ON position to enable USB SS (Super Speed) mode on the USB-C input. Enabling USB SS mode provides data rates up to 5 Gbit/s (625 MB/s), allowing a maximum resolution of 4096x2048 @ 30 Hz RGB. If this feature is disabled, resolutions up to 4096x2048 @ 60 Hz are supported.

Mode

Selects the desired USB switching mode. Refer to USB Modes (page 42) for more information.

Setting Description
Follow USB If both USB host ports are	connected to host devices, then the AT-OME-MH21 / AT-OME-MH21-CP will set the last-connected USB host device as the “active” USB host.
Manual This mode provides manual selection of the USB host port to be used.When this mode is selected, select either Local Type-C or Local USB 1 from the drop-down list.

USB VBus

Adjusts the power function of the USB hub ports.

Setting Description
Follow the presence of USB Host Allows	the USB hub ports to toggle on and off based on the presence of a USB host.
Always High Keeps the USB power on the	the hub ports always on. For example, connecting the AT-CAP-SP100 to the AT-OME-MH21 / AT-OME-MH21-CP, when no host is connected, would allow the speakerphone to charge, continuously.

Front Panel Lock

Click this toggle switch to LOCK or UNLOCK the AT-OME-MH21 / AT-OME-MH21-CP. Refer to Locking / Unlocking the Front Panel (page 37) for more information.

Reset to Default

Click the Factory Default button to reset the AT-OME-MH21 / AT-OME-MH21-CP to factory-default settings. Refer to Resetting to Factory-Default Settings (page 38) for more information.

Firmware Update

Click the Choose File button to begin the firmware update procedure. Refer to Updating the Firmware (page 58) for more information.

Velocity Update

Click the Choose File button to upgrade the Velocity database in the AT-OME-MH21 / AT-OME-MH21-CP.

Configuration and Management Interfaces

Log File Download

Click the Download button to download the system event log file to the connected PC.

Import Configuration

Click the Choose File button to select a configuration file to restore. Click the Upload button to upload the configuration file to the AT-OME-MH21 / AT-OME-MH21-CP. Restoring a configuration file will erase the current unit configuration.

Export Configuration

Click the Download button to save the current system configuration to a local file.

Appendix

Updating the Firmware

Updating the firmware is performed using the built-in web server.

Using the Web Server

Requirements:

• AT-OME-MH21 / AT-OME-MH21-CP
- Firmware file

• Computer on the same network as the AT-OME-MH21 / AT-OME-MH21-CP

1. Download the firmware file from atlona.com and extract the contents of the .zip file to a folder on the computer desktop.
2. Power on the unit and connect an Ethernet cable from the computer, containing the firmware, to the same network where the AT-OME-MH21 / AT-OME-MH21-CP is connected.
3. Login to the web server. Refer to Web Server (page 18) for more information.
4. Click System in the menu bar.

1. Click the Choose File button, under the Firmware Update section.

Appendix

1. Browse to the location of the firmware file, select it, and click the Open button. Click the Update button, under the Firmware Update section. The following message box will be displayed.

1. Click the OK button to begin the firmware update process. Click the Cancel button to cancel the process.
2. After the firmware update process is complete, the Login screen will be displayed.

Appendix

Using USB

Requirements:

• AT-OME-MH21 / AT-OME-MH21-CP
- Firmware file
• PC or Mac computer
• USB-A to USB-B cable

1. Make sure the unit is powered, using the included power supply.
2. Press and hold the INPUT button. While depressing the INPUT button, connect the USB cable between the HOST USB port on the AT-OME-MH21 / AT-OME-MH21-CP and the computer containing the firmware.

1. A virtual USB drive will be created and the folder of this drive will be displayed. If this folder is not displayed automatically, then select the drive from within Windows Explorer (Windows) or the Finder (Mac).
2. Delete all files from the drive, if any are present.
3. Drag-and-drop the firmware file to the drive folder. The PWR LED indicator will flash green during the update procedure.
4. Disconnect the USB cable from the AT-OME-MH21 / AT-OME-MH21-CP.
5. The AT-OME-MH21 / AT-OME-MH21-CP will automatically reboot. When the PWR LED indicator is solid green, the firmware update process will be complete. The unit is now ready for use.

Integration with the AT-OCS-900N

NOTE: Both the AT-OME-MH21 and AT-OME-MH21-CP support a maximum of three AT-OCS-900N devices.

The following provides instructions on adding the AT-OCS-900N occupancy sensor as a device. The Auto Switch feature on the AT-OME-MH21 / AT-OME-MH21-CP does not need to be enabled for this to work.

IMPORTANT: A username and password must be configured on the AT-OCS-900N before using the device with the AT-OME-MH21 / AT-OME-MH21-CP.

1. Connect the AT-OCS-900N to the same network as the AT-OME-MH21 / AT-OME-MH21-CP. Refer to the AT-OCS-900N User Manual for more information.
2. Login to the web server of the AT-OME-MH21 / AT-OME-MH21-CP.
3. Click Display in the top menu bar.
4. Under the Occupancy Sensor Control section, enter the IP address of the AT-OCS-900N in the IP Address field.

1. Click the Add button. If the correct IP address was entered and the AT-OCS-900N is found, additional information will be displayed under the Occupancy Sensor Control section, as shown on the next page.

Appendix

1. Click the Turn Display On on Occupancy toggle to enable or disable this feature. When enabled, the toggle switch will display as ENABLED and the occupancy sensor will power-on the display when the room is occupied.
2. Click the Turn Display Off on Vacancy toggle to enable or disable this feature. When enabled, the toggle will display as ENABLED and the occupancy sensor will power-off the display when the room is no longer occupied.
3. Click the Identify button to identify the occupancy sensor. This feature is useful when multiple sensors are connected.

IMPORTANT: When adding an occupancy sensor, it is recommended that a static IP address is assigned to the occupancy sensor. DHCP is not recommended.

1. Click the Remove button to delete a sensor from the Sensors list.
2. Setup is complete.

Appendix

Mounting Instructions

The AT-OME-MH21 / AT-OME-MH21-CP includes two mounting brackets, which can be used to attach the unit to any flat surface. Use the two enclosure screws, on the sides of the unit to attach the mounting brackets.

IMPORTANT: When mounting the AT-OME-MH21 / AT-OME-MH21-CP, ensure the mounting height does not exceed 2 meters (6.56 feet).

1. Using a small Phillips screwdriver, remove the two screws from the left side of the enclosure.

Black wireless router device with ATLOV-40 branding and ports labeled (no readable text beyond branding)

1. Position one of the mounting brackets, as shown below, aligning the holes on the side of the enclosure with one set of holes on the mounting bracket.
2. Use the screws from Step 1 to attach the mounting bracket.

Exterior view of a black networking device with ports and connectors (no readable text or symbols)

Appendix

1. Repeat steps 1 and 2 to attach the second mounting bracket to the opposite side of the unit.
2. Mount the unit to a flat surface using the oval-shaped holes, on each mounting bracket. If using a drywall surface, a #6 drywall screw is recommended.

Black ATLONIA network device with screw and indicator lights (no readable text or symbols beyond branding)

NOTE: Mounting brackets can also be inverted to mount the unit under a table or other flat surface.

Specifications

AT-OME-MH21

Video
Signal Input - HDMI, USB-C	Output - HDMI
Copy Protection HDCP 2.2
Pixel Clock 600 MHz
UHD/HD/SD 4096×2160@60/50	3840×2160@60/50/30/25/24 Hz	720x576p@50 Hz
	1920x1080p@60/59.9/50/30/29.97/25/24/23.98 Hz	720x576i@50 Hz
	1920x1080i@30/29.97/25 Hz	640x480p@60/59.96 Hz
	1280x720p@60/59.94/50 Hz	640x480i@30 Hz
VESA	2560×1600	1280×800
All resolutions are 60Hz	2048×1536	1366×768
	1920×1200	1360×768
	1680×1050	1152×864
	1600×1200	1024×768
	1440×900	800×600
	1400×1050	640×480
	1280×1024
VESA 21:9 5120x2160 @ 30 Hz	4:4:4	3440x1440 @ 50 Hz 4:4:4
	3840x1600 @ 60 Hz 4:4:4	3440x1440 @ 30 Hz 4:4:4
	3840x1600 @ 30 Hz 4:4:4	2560x1080 @ 60 Hz 4:4:4
	3440x1440 @ 60 Hz 4:4:4	2560x1080 @ 30 Hz 4:4:4
Scaler^(1)	IN	OUT
	4K@24 Hz	1080p@24 Hz
	4K@30 Hz	1080p@30 Hz
	4K@60 Hz	1080p@60 Hz
Color Space YUV, RGB
Chroma Subsampling	4:4:4, 4:2:2, 4:2:0(2)
Color Depth	8-bit, 10-bit, 12-bit
HDR	HDR10, Hybrid-Log Gamma (HLG), and Dolby® VisionTM @ 60 Hz

Audio
HDMI	PCM 2.0	Dolby® Digital	DTS® Digital SurroundTM
Pass-Through Formats	LPCM 5.1	Dolby Digital PlusTM	DTS-HD Master AudioTM
	LPCM 7.1	Dolby TrueHD
Bit Rate 24 Mbits/s max
Analog Audio
Format 2-channel stereo
Balanced Output +4 dBu, nominal gain; +20 dBu headroom
Frequency Response 20 Hz to 20 kHz, ±0.5 dB
Impedance 150 Ω
Stereo channel separation >90 dB
THD + N < 0.004% @ 20 Hz to 20 kHz
SNR >94 dB @ 1 kHz, zero clipping @ 0 dBFS, unweighted

Appendix

USB
Compliance	3.0
Maximum Data Rate	5 Gbps ^(3)
USB-C	Supports audio, video, device and host data
Internal Hubs	1 USB hub (when connected to USB-C or USB type B host port)

Ethernet
Port 1 x RJ45
Standards and Protocols HTTP	HTTPS, Telnet, mDNS
Speeds 10/100 Mbps
Addressing DHCP, Static – selectable through front panel, IP, RS-232 commands, and built-in web server

RS-232
Port 1 x 4-pin captive screw; TX, RX, GND
Use Device control and configuration
Baud Rates 2400, 4800, 9600, 19200, 38400, 57600, 115200
Data flow Bidirectional

IR
Port 1 x 4-pin captive screw; TX, GND
Use Pass-through control
Frequency Range	30 kHz to 60 kHz

CEC
Port 1 x HDMI OUTPUT, Type A, 19-pin female
Triggering	Through IP, RS-232, and built-in web server

Resolution / Distance	4K/UHD - Feet / Meters		1080p - Feet / Meters
HDMI IN/OUT	15	5	30	10
USB-C(4)	6.6	2	6.6	2

Buttons and Indicators
Buttons:
DISPLAY, INPUT	2 – momentary, tact-type
IP MODE, RESET	2 – momentary, tact-type
Indicators:
PWR, INPUT	3 – LED, green
IP MODE, RESET	2 – LED, green

Connectors
HDMI IN 1 – Type A, 19-pin female
USB-C IN 1 – USB Type-C v3.1, 24-pin female, AV input (Alternate Mode)
HDMI OUT 1 – Type A, 19-pin female
USB HUB 2 – Type A, 4-pin female
USB HOST 1 – Type B, female
AUDIO OUT 1 – 5-pin captive screw, balanced / unbalanced 2-channel
RS-232 / IR OUT	1 – 4-pin captive screw (bidirectional)
LAN	1 – RJ45, 100Base-T
PWR	1 - Barrel connector, locking

Appendix

Environmental Fahrenheit	Celsius
Operating Temperature	+32 to +122	0 to +50
Storage Temperature	-4 to +140	-20 to +60
Operating Humidity (RH)	20% to 90%, non-condensing
Maximum Operating Altitude	2000 meters
Power
Consumption Max: 14.5 W
BTU/h 49.4
External Power Supply 100 - 240 V AC, 50/60 HzOutput: 5 V / 4 A DC
Dimensions (H x W x D) Inches Millimeters
Unit 1.02 x 8.62 x 5.98 26 x 219 x 152
Power Supply (AT-PS-54-L) 1.22 x 1.97 x 3.17 31 x 50 x 80.6
Weight Pounds Kilograms
Device 2.15 0.975
Certification
Device CE, FCC, CB
Power Supply CE, FCC, UL, CB
Compliance
NDAA-899	Yes
TAA	Yes
Warranty
Device 3 years

Footnotes

(1) Scaler does not support frame rate conversion.
(2) 4:2:0 is not supported over USB-C.
(3) When USB SuperSpeed (SS) mode is enabled, video output is supported up to 4K @ 30 Hz and the USB data rate is 5 Gbps. If disabled, video output is supported up to 4K @ 60 Hz and data rate is limited to 480 Mbps.
(4) The cable used for USB-C connection should support at least USB 3.1 Gen. 1, 4K @ 60 Hz video, and 60 W of power delivery.

AT-OME-MH21-CP

Video
Signal Input - HDMI, USB-C	Output - HDMI
Copy Protection HDCP 2.2
Pixel Clock 600 MHz
UHD/HD/SD 4096×2160@60/50/30/25/24 Hz	3840×2160@60/50/30/25/24 Hz	720x576p@50 Hz
		720x576i@50 Hz
	1920x1080p@60/59.9/50/30/29.97/25/24/23.98 Hz	640x480p@60/59.96 Hz
	1920x1080i@30/29.97/25 Hz	640x480i@30 Hz
	1280x720p@60/59.94/50 Hz
VESA	2560×1600	1280×800
All resolutions are 60Hz	2048×1536	1366×768
	1920×1200	1360×768
	1680×1050	1152×864
	1600×1200	1024×768
	1440×900	800×600
	1400×1050	640×480
	1280×1024
VESA 21:9 5120x2160 @ 30 Hz 4:4:4	3840x1600 @ 60 Hz 4:4:4	3440x1440 @ 50 Hz 4:4:4
		3440x1440 @ 30 Hz 4:4:4
	3840x1600 @ 30 Hz 4:4:4	2560x1080 @ 60 Hz 4:4:4
	3440x1440 @ 60 Hz 4:4:4	2560x1080 @ 30 Hz 4:4:4
Scaler^(1)	IN	OUT
	4K@24 Hz	1080p@24 Hz
	4K@30 Hz	1080p@30 Hz
	4K@60 Hz	1080p@60 Hz
Color Space YUV, RGB
Chroma Subsampling	4:4:4, 4:2:2, 4:2:0(2)
Color Depth	8-bit, 10-bit, 12-bit
HDR	HDR10, Hybrid-Log Gamma (HLG), and Dolby® VisionTM @ 60 Hz

Audio
HDMI	PCM 2.0	Dolby® Digital	DTS® Digital SurroundTM
Pass-Through Formats	LPCM 5.1	Dolby Digital PlusTM	DTS-HD Master AudioTM
	LPCM 7.1	Dolby TrueHD
Bit Rate 24 Mbits/s max
Analog Audio
Format 2-channel stereo
Balanced Output +4 dBu, nominal gain; +20 dBu headroom
Frequency Response 20 Hz to 20 kHz, ±0.5 dB
Impedance 150 Ω
Stereo channel separation >90 dB
THD + N < 0.004% @ 20 Hz to 20 kHz
SNR >94 dB @ 1 kHz, zero clipping @ 0 dBFS, unweighted

Appendix

USB
Compliance	3.0
Maximum Data Rate	5 Gbps ^(3)
USB-C	Supports audio, video, device and host data, and up to 60 W power charging
Internal Hubs	1 USB hub (when connected to USB-C or USB type B host port)
Ethernet
Port 1 x RJ45
Standards and Protocols HTTP	HTTPS, Telnet, SSH, mDNS
Speeds 10/100 Mbps
Addressing DHCP, Static – selectable through front panel, IP, RS-232 commands, and built-in web server
RS-232
Port 1 x 4-pin captive screw; TX, RX, GND
Use Device control and configuration
Baud Rates 2400, 4800, 9600, 19200, 38400, 57600, 115200
Data flow Bidirectional
IR
Port 1 x 4-pin captive screw; TX, GND
Use Pass-through control
Frequency Range	30 kHz to 60 kHz
CEC
Port 1 x HDMI OUTPUT, Type A, 19-pin female
Triggering	Through IP, RS-232, and built-in web server
Resolution / Distance	4K/UHD - Feet / Meters		1080p - Feet / Meters
HDMI IN/OUT	15	5	30	10
USB-C(4)	6.6	2	6.6	2
Buttons and Indicators
Buttons:
DISPLAY, INPUT	2 – momentary, tact-type
IP MODE, RESET	2 – momentary, tact-type
Indicators:
PWR, INPUT	3 – LED, green
IP MODE, RESET	2 – LED, green
Connectors
HDMI IN 1 – Type A, 19-pin female
USB-C IN 1 – USB Type-C v3.1, 24-pin female, AV input (Alternate Mode)
HDMI OUT 1 – Type A, 19-pin female
USB HUB 2 – Type A, 4-pin female
USB HOST 1 – Type B, female
AUDIO OUT 1 – 5-pin captive screw, balanced / unbalanced 2-channel
RS-232 / IR OUT	1 – 4-pin captive screw (bidirectional)
LAN	1 – RJ45, 100Base-T
PWR	1 - 4-pin mini-DIN

Appendix

Environmental Fahrenheit	Celsius
Operating Temperature	+32 to +122	0 to +50
Storage Temperature	-4 to +140	-20 to +60
Operating Humidity (RH)	20% to 90%, non-condensing
Maximum Operating Altitude	2000 meters
Power
Consumption Unit only: 6.0 W	Full load: 90.4 W (while powering USB-C devices up to 60 W and USB Type A devices up to 9 W total across all ports)
External Power Supply 100 - 240 V AC, 50/60 HzOutput: 24 V / 5 A DC
Dimensions (H x W x D) Inches Millimeters
Unit 1.02 x 8.62 x 5.98 26 x 219 x 152Power Supply (AT-PS-245-D4)	1.59 x 2.63 x 6.17 41 x 67 x 157
Weight Pounds Kilograms
Device 2.15 0.975
Certification
Device CE, FCC, CB
Power Supply CE, FCC, UL, CB
Compliance
NDAA-899	Yes
TAA	Yes
Warranty
Device 3 years

Footnotes

(1) Scaler does not support frame rate conversion.
(2) 4:2:0 is not supported over USB-C.
(3) When USB SuperSpeed (SS) mode is enabled, video output is supported up to 4K @ 30 Hz and the USB data rate is 5 Gbps. If disabled, video output is supported up to 4K @ 60 Hz and data rate is limited to 480 Mbps.
(4) The cable used for USB-C connection should support at least USB 3.1 Gen. 1, 4K @ 60 Hz video, and 60 W of power delivery.