Kramer

VM-4DT - Hi-Fi System Kramer - Free user manual and instructions

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Product Type 1:4 HDBaseT Distributor
Brand Kramer
Model VM-4DT
Input 1 x HDBT (RJ-45 female)
Outputs 4 x HDBT (RJ-45 female)
Max Video Resolution 4K@60Hz (4:2:0) 24bpp
Extension Range (4K) Up to 40m (130ft) using Kramer HDBaseT cable
Extension Range (1080p) Up to 70m (230ft) using Kramer HDBaseT cable
HDMI Compliance HDMI 2.0, HDCP 1.4
Data Rate Up to 10.2 Gbps (3.4 Gbps per channel)
Controls EDID SETUP button, SETUP DIP-switches (8-way + 4-way), mini-USB for RS-232 Protocol 3000
Indicators ON, ACTIVE INPUT, HDBT LINK (IN, OUT 1-4), OUTPUTS CONNECTED (1-4)
Power Source 5.2V DC, 4A (power supply included)
Power Consumption 5V DC, 3.5A
Dimensions (W x D x H) 21.5cm x 16.3cm x 4.4cm (8.4" x 6.4" x 1.8")
Weight 0.53 kg (1.17 lb)
Shipping Weight 1.29 kg (2.84 lb)
Enclosure Aluminum, desktop size, half 19" width (1U), fan ventilation
Operating Temperature 0° to +40°C (32° to 104°F)
Storage Temperature -40° to +70°C (-40° to 158°F)
Humidity 10% to 90% RHL non-condensing
Included Accessories 5V DC power supply
Warranty 7 years (standard Kramer limited warranty)
EDID Management I-EDIDPro, default EDID, EDID capture via SETUP button, EDID Designer via USB
Firmware Upgrade Via mini-USB port using K-UPLOAD software

Frequently Asked Questions - VM-4DT Kramer

What is the maximum video resolution supported by the Kramer VM-4DT?
The VM-4DT supports up to 4K@60Hz (4:2:0) 24bpp video resolution.
What is the maximum extension range for 4K signals?
Up to 40 meters (130 feet) when using Kramer HDBaseT compliant copper cable.
Can the VM-4DT route IR and RS-232 signals?
Yes, it can route IR and RS-232 signals between the input and outputs. Routing is configured via the SETUP DIP-switches on the rear panel.
How do I capture the EDID from a connected display?
Press the EDID SETUP button on the front panel to cycle through output EDIDs (1-4) or select the default EDID. The selected EDID is automatically applied.
What is the default EDID of the VM-4DT?
The default EDID is a 1920x1080p@60Hz timing with LPCM 2-channel audio. It supports various resolutions including 1280x720p, 720x480p, and 640x480p.
How can I upgrade the firmware?
Use the K-UPLOAD software via the mini-USB port. First install the Kramer USB driver, then connect the VM-4DT to a PC and run K-UPLOAD.
What is the power requirement for the VM-4DT?
It requires a 5.2V DC, 4A power supply. The unit consumes 5V DC at 3.5A.
Can I rack-mount the VM-4DT?
Yes, it is half 19-inch width (1U) and can be mounted side-by-side with another unit in a 1U rack space using the optional RK-1 rack adapter.
What serial commands does the VM-4DT support?
It supports Kramer Protocol 3000 commands via the mini-USB port. Commands include #MODEL?, #SIGNAL?, #CPEDID, and more for control and status.
Does the VM-4DT support HDCP?
Yes, it is HDCP 1.4 compliant. HDCP status can be queried via the HDCP-STAT command.

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Download the instructions for your Hi-Fi System in PDF format for free! Find your manual VM-4DT - Kramer and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. VM-4DT by Kramer.

USER MANUAL VM-4DT Kramer

Typical Applications 3

About HDBaseT™ Technology 3

Using Twisted Pair Cable for HDBT 3

Defining the VM-4DT 1:4 HDBT Distributor 4

Connecting the VM-4DT 5

Operating the VM-4DT 6

Routing the IR and RS-232 Signals 6

Acquiring an EDID 9

Upgrading the Firmware 10

Default EDID 11

Technical Specifications 13

Default Communication Parameters 14

Protocol 3000 15

Understanding Protocol 3000 16

Kramer Protocol 3000 Syntax 17

Protocol 3000 Commands 18

Introduction

Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront the video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we have redesigned and upgraded most of our line, making the best even better!

Our 1,000-plus different models now appear in 14 groups that are clearly defined by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity; GROUP 10: Accessories and Rack Adapters; GROUP 11: Sierra Video Products; GROUP 12: Digital Signage; GROUP 13: Audio; and GROUP 14: Collaboration.

Getting Started

We recommend that you:

  • Unpack the equipment carefully and save the original box and packaging materials for possible future shipment.
  • Review the contents of this user manual.

Kramer VM-4DT - Getting Started - 1

Go to www.kramerav.com/downloads/VM-4DT to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).

Achieving the Best Performance

  • Use only good quality connection cables (we recommend Kramer high-performance, high-resolution cables) to avoid interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low quality cables).
  • Do not secure the cables in tight bundles or roll the slack into tight coils.
  • Avoid interference from neighbouring electrical appliances that may adversely influence signal quality.
  • Position your Kramer VM-4DT away from moisture, excessive sunlight and dust.

Kramer VM-4DT - Achieving the Best Performance - 1

This equipment is to be used only inside a building. It may only be connected to other equipment that is installed inside a building.

Safety Instructions

Kramer VM-4DT - Safety Instructions - 1

Caution: There are no operator serviceable parts inside the unit.

Warning: Use only the power cord that is supplied with the unit.

Warning: Do not open the unit. High voltages can cause electrical shock! Servicing by qualified personnel only.

Warning: Disconnect the power and unplug the unit from the wall before installing.

Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled. To comply with the WEEE Directive, Kramer Electronics has made arrangements with the European Advanced Recycling Network (EARN) and will cover any costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility. For details of Kramer's recycling arrangements in your particular country go to our recycling pages at www.kramerav.com/support/recycling/.

Overview

Congratulations on purchasing your Kramer VM-4DT 1:4 HDBT Distributor.

VM-4DT is a high-quality integrated extension product featuring a long-reach 4K@60Hz (4:2:0) HDBaseT extender distributor that takes one long-reach HDBaseT input, equalizes and reclocks the signal and distributes it to four identical HDBaseT outputs. VM-4DT distributes native HDBaseT signals with up to 4K video resolution, along with their re-extension over HDBaseT.

VM-4DT is a standard extender that can connect to any market-available HDBaseT compliant extending products.

VM-4DT provides exceptional quality and user-friendly operation.

Exceptional Quality

  • Line Extender Distributor – Native 1:4 long-each HDBaseT distributor for deploying mid-way between AV source and distributed-signal displays to gain extra long-reach extension.
  • High-quality professional extension, on either input or output lines, of maximum 4K @60Hz (4:2:0) 24bpp video resolution signal to a maximum of 40m (130ft) long-reach over Kramer HDBaseT compliant copper cable.

Kramer VM-4DT - Exceptional Quality - 1

Reach depends on signal resolution, and quality of copper cable used. Reach extension performance may vary while using non-Kramer twisted pair cables.

  • HDMI Signal Transmission – HDMI 2.0 and HDCP 1.4 compliant signal, supporting deep color, x.v.Color™, lip sync, HDMI uncompressed audio channels, Dolby TrueHD, DTS-HD, CEC (OUT 1 only), 2K, 4K, and 3D.
  • I-EDIDPro™ Kramer Intelligent EDID Processing™ – An intelligent EDID handling, processing and pass-through algorithm that ensures Plug and Play operation for HDMI source and display systems.

User-friendly Operation

  • LED Indicators – Status indicators for HDBaseT input and output connected signals, including far-end active device connection, and a power indicator, easily maintaining and troubleshooting the extended system end-to-end.
  • Easy Installation – Twisted-pair cables for HDBaseT signal wiring. Standard half-width 19" (1U) enclosure for ceiling mounting, or side-by-side mounting of 2 units in a 1U rack space with the optional RK-1 rack adapter.
  • A default EDID for fast and efficient connection of the unit. The default EDID feature lets you connect the VM-4DT without having to connect a display to the output.
    • Supports EDID Designer and firmware upgrade via the USB port.
  • Includes an EDID setup button to capture the EDID or select the default EDID.

Typical Applications

The VM-4DT is ideal for the following typical applications:

  • Native AV signal re-extension and distribution in large rooms.
    • Corporate, education, hospitality, and government market segments.

About HDBaseT™ Technology

HDBaseT™ is an advanced all-in-one connectivity technology (supported by the HDBaseT Alliance). It is particularly suitable in the ProAV – and also the home – environment as a digital networking alternative, where it enables you to replace numerous cables and connectors by a single LAN cable used to transmit, for example, uncompressed full high-definition video, audio, IR, as well as various control signals.

Using Twisted Pair Cable for HDBT

Kramer engineers have developed special twisted pair cables to best match our digital twisted pair products that significantly outperform regular CAT 5 / CAT 6 cables.

Kramer VM-4DT - Using Twisted Pair Cable for HDBT - 1

We strongly recommend that you use shielded twisted pair cable. For details, go to our website at www.kramerav.com/product/VM-4DT.

Defining the VM-4DT 1:4 HDBT Distributor

This section defines the VM-4DT.
1 ON 2 PROG. 3 EDID SETUP 4 ACTIVE INPUT 5 HDBT LINK IN OUT 6 OUTPUTS CONNECTED 1 2 3 4 1 2 3 4 KRAMER 1:4 HDBT Distributor VM-4DT

Kramer VM-4DT - Defining the VM-4DT 1:4 HDBT Distributor - 2

flowchart
graph TD
    A["7"] --> B["INPUT"]
    C["8"] --> D["OUTPUT 1"]
    E["9"] --> F["OUTPUT 2"]
    G["10"] --> H["OUTPUT 3"]
    I["11"] --> J["OUTPUT 4"]
    K["SETUP"] --> L["1 2 3 4 5 6 7 8 1 2 3 4"]
    M["5V DC"] --> N["+"]

Figure 1: VM-4DT 1:4 HDBT Distributor Front Panel

#FeatureFunction
1ON LEDLights when the unit receives power.
2PROGRAM Mini USB ConnectorUse to send serial commands, seeProtocol 3000on page15.Connect to a PC to perform firmware upgrades (via K-Upload) and work with the EDID Designer.K-Upload and EDID Designer can be downloaded from our Web site at:www.kramerav.com/support/product_downloads.asp.
3EDID SETUP ButtonPress to capture the input EDID or select the default EDID, seeAcquiring an EDIDon page9.
4ACTIVE INPUT LEDLights when an HDMI signal is embedded on the HDBaseT input
5HDBT LINK LEDsINLights when a link is established with the transmitter.
OUTLights when a link is established with the receiver (from 1 to 4).
6OUTPUTS CONNECTED LEDsLights when an acceptor (sink) is detected on the HDBaseT receiver connected to the output (from 1 to 4)
7INPUT HDBT ConnectorConnects to the HDBT source, for exampleTP-580T.
8HDBT OUT ConnectorsConnect to an HDBT acceptor (from 1 to 4), for example TP-580R.
9SETUP 8-way DIP-switchesUsed to set the IR and RS-232 command behavior, seeSetting theDIP-Switches for Routingon page6.
10SETUP 4-way DIP-switchFor future use.
115V DC ConnectorConnects to the 5V DC power supply.

Connecting the VM-4DT

Kramer VM-4DT - Connecting the VM-4DT - 1

Always switch off the power to each device before connecting it to your VM-4DT. After connecting your VM-4DT, connect its power and then switch on the power to each device.

To connect the VM-4DT as illustrated in the example in Figure 2:

  1. Connect the HDBT input source (for example, TP-580T) to the HDBT IN connector ⑦.
  2. Connect the four HDBT outputs ⑧ to four HDBT receivers (for example, TP-580R devices).
  3. Connect the 5V DC power adapter to the power socket ⑪ unit and then connect the adapter to the mains electricity (not shown in Figure 2). The ON LED lights ①

Kramer VM-4DT - To connect the VM-4DT as illustrated in the example in Figure 2: - 1

flowchart
graph TD
    A["INPUT"] --> B["HDBT"]
    C["OUTPUT 1"] --> D["TP-580T"]
    E["OUTPUT 2"] --> F["TP-580R"]
    G["OUTPUT 3"] --> H["TP-580R"]
    I["OUTPUT 4"] --> J["TP-580R"]
    K["SETUP"] --> L["1 2 3 4 5 6 7 8 1 2 3 4"]
    M["5V DC"] --> N["+"]
    B --> O["HDBT"]
    D --> P["HDBT"]
    F --> Q["HDBT"]
    H --> R["HDBT"]
    J --> S["HDBT"]
    L --> T["HDBT"]
    N --> U["HDBT"]

Figure 2: Connecting to the VM-4DT Rear Panel

Operating the VM-4DT

This section describes how to:

  • Route the IR and RS-232 signals via the HDBT ports (see Routing the IR and RS-232 Signals on page 6).
    • Acquire the EDID (see Acquiring an EDID on page 9).

- Perform firmware upgrade via K-Upload (see Upgrading the Firmware on page 10).

Routing the IR and RS-232 Signals

VM-4DT transports IR and RS-232 signals between the HDBT input and the four HDBT outputs. Each signal can pass bidirectional commands via the VM-4DT HDBT ports (one input and four outputs).

The IR/RS-232 signal routing is set via the SETUP DIP-switches ⑨.

Setting the DIP-Switches for Routing

Set the DIP-switches as defined by the following table:

Output #IR Routing is enabled when:RS-232 Routing is enabled when:
OUT 1DIP 1 – OFF (up)DIP 5 – OFF (up)
OUT 2DIP 2 – OFF (up)DIP 6 – OFF (up)
OUT 3DIP 3 – OFF (up)DIP 7 – OFF (up)
OUT 4DIP 4 – OFF (up)DIP 8 – OFF (up)

Kramer VM-4DT - Setting the DIP-Switches for Routing - 1

By default, all DIP-switches are set to OFF (up)

SETUP 1 2 3 4 5 6 7 8 ON 1 2 3 4 OR IR routing enable/disable RS-232 routing enable/disable

Figure 3: VM-4DT DIP-Switches

For example, in the DIP-switch setup shown in Figure 4, DIPs 1, and 6 are set to OFF (up). This means that IR signals can traverse between IN and OUT 1 ports and RS-232 commands can traverse between IN and OUT 2 ports. DIP-switches 2, 3, 4, 5, 7, and 8 are set to ON (down) and are therefore disabled.

SETUP 1 2 3 4 5 6 7 8 1 2 3 4 ON ON

Figure 4: VM-4DT DIP-Switches Setup

Signal Routing Example

The example in Figure 5 shows the VM-4DT connected to two TP-580R devices. Two additional TP-580R devices can also be connected. The table below summarizes the types of connections:

Output #HDMI OUT:INPUTIRRS-232
VM-4DTTP-580T (Blu-ray player)EmitterRC-43SL
TP-580R (1)ProjectorProjector
TP-580R (2)DisplaySensorDisplay

Kramer VM-4DT - Signal Routing Example - 1

RS-232 and IR signals are transparently routed between the VM-4DT source and two acceptors. Since RS-232 is designed for point-to-point communication, make sure that only one RS-232 signal is sent to a destination. However, although only one device may send RS-232 signals down a line, sending RS-232 signals to multiple devices is permissible.

You can send RS-232 signals to an AV device via the transmitter or receivers that are connected to the VM-4DT. If you have set the DIP-switches to traverse to all outputs, any command sent to a destination on one of the outputs will also pass to the other output destinations, so you must verify that it will not have an unwanted effect on the other destinations.

In general, we recommend that you set the DIP-switches to traverse to all outputs only when all destination devices are identical (same vendor and same product model) and avoid the sending of concurrent responses.

Routing the IR signal

In the example in Figure 5, an IR emitter cable is connected from TP-580T to the Blu-ray player and an IR sensor cable is connected to the TP-580R (2) receiver for receiving IR remote signals. This setup lets you remotely control the Blu-ray player via the TP-580R (2) receiver device, using the Blu-ray player IR remote control transmitter.

Kramer VM-4DT - Routing the IR signal - 1

To route the IR signal you have to use the Kramer external IR Receiver cable on one end and the Kramer IR emitter cable on the other end. Note that IR Emitter Extension Cables are also available, if required. For further details, see www.kramerav.com/product/VM-4DT.

Routing the RS-232 Signal

An RS-232 controller can be used to control the AV devices via the TP-580T RS-232 port by sending RS-232 commands over HDBaseT lines to the remote connected AV devices.

In the example in Figure 5, the Kramer RC-43SL control keypad is used to control AV devices that are connected to both TP-580R (1) and TP-580R (2). RC-43SL is connected to the TP-580T RS-232 port. The RS-232 ports on TP-580R (1) and TP-580R (2) are connected to a projector and display, respectively. This type of setup enables you to control the projector and display via the RC-43SL.

When RC-43SL sends a command to the projector on TP-580R (1), it bears no effect on the display that is connected to TP-580R (2). If TP-580R (1) and TP-580R (2) were connected each to identical projectors, both would respond to the sent RS-232 command.

Kramer VM-4DT - Routing the RS-232 Signal - 1

flowchart
graph TD
    subgraph VM-4DT
        A["INPUT"] --> B["OUTPUT 1"]
        B --> C["OUTPUT 2"]
        C --> D["OUTPUT 3"]
        D --> E["OUTPUT 4"]
    end
    subgraph TP-580T
        F["HDBT OUT"] --> G["HDMI IN"]
        H["PROG NORMAL"] --> I["RS-232"]
        J["RS-232"] --> K["IR"]
        L["RS-232"] --> M["12V DC"]
        N["12V DC"] --> O["Display"]
        P["External IR Sensor"] --> Q["Projector"]
        R["Blue-ray Player Control Transmitter"] --> S["Output"]
    end
    subgraph TP-580R (1)
        T["HDBT IN"] --> U["HDMI OUT"]
        V["PROG NORMAL"] --> W["RS-232"]
        X["RS-232"] --> Y["IR"]
        Z["12V DC"] --> AA["Display"]
    end
    subgraph TP-580R (2)
        AB["HDBT IN"] --> AC["HDMI OUT"]
        AD["PROG NORMAL"] --> AE["RS-232"]
        AF["RS-232"] --> AG["IR"]
        AH["RS-232"] --> AI["Display"]
    end
    subgraph PC
        AJ["SETUP"] --> AK["1 2 3 4 5 6 7 8 1 2 3 4"]
    end
    subgraph PC
        AL["SETUP"] --> AM["1 2 3 4 5 6 7 8 1 2 3 4"]
    end
    subgraph PC
        AN["RL-43SL"] --> AO["Blu-ray Player"]
        AP["External IR Emitter"] --> AQ["RL-43SL"]
    end

Figure 5: IR/RS-232 Routing Example

Acquiring an EDID

You can acquire the EDID from a connected output or set the VM-4DT to the default EDID.

To acquire an EDID, press the EDID SETUP button as follows:

  1. Press EDID SETUP once.

The OUTPUTS CONNECTED LEDs flash to indicate the current EDID used: 1, 2, 3, 4, or all if the default EDID is currently used.

  1. Press EDID SETUP ③ again to enter the EDID read mode and then press repeatedly to cycle through the EDID source options until the desired EDID source is reached: OUT 1 -> OUT 2 -> OUT 3 -> OUT 4 -> all LEDs flash (for a default EDID).
  2. Wait a few seconds for the VM-4DT to read the EDID. When complete, all LEDs return to display the present output connection status.

Kramer VM-4DT - Acquiring an EDID - 1

Note that if an unconnected output is chosen or the EDID cannot be read, the VM-4DT loads the default EDID.

VM-4DT supports Kramer EDID Designer (via the mini USB port), available at our website: Kramer EDID Designer.

In order to use the mini USB port ②, you need to download and install the Kramer USB driver from our web site at: www.kramerav.com/support/product_downloads.asp.

Forcing the RGB Mode

VM-4DT can acquire EDID in normal mode (default) or in RGB mode (EDID supports only RGB color space).

To enter RGB-only mode:

  1. Press and hold EDID SETUP ③.

The output LEDs flash 4 times and then turn off.

  1. If required, read the EDID (see Acquiring an EDID, on page 9).

To return to the normal mode:

  1. Press and hold EDID SETUP ③.
    The output LEDs light once and then turn off.
  2. If required, read the EDID (see Acquiring an EDID, on page 9).

Kramer VM-4DT - To return to the normal mode: - 1

Upon power on, the output LEDs flash according to their EDID mode: four times for RGB mode and once for normal mode.

Upgrading the Firmware

Use the Kramer K-UPLOAD software to upgrade the firmware via the VM-4DT PROG. Mini USB port ②

The latest version of K-UPLOAD and installation instructions can be downloaded from our website at: www.kramerav.com/support/product_downloads.asp.

Kramer VM-4DT - Upgrading the Firmware - 1

Note that in order to use the mini USB port, you need to install the Kramer USB driver, available at: www.kramerav.com/support/product_downloads.asp.

Default EDID

Kramer VM-4DT - Default EDID - 1

This section lists the default HD EDID.

Monitor

Model name...... VM-4DT

Manufacturer..... KMR

Plug and Play ID..... KMR0672

Data string...... Default-EDID

Serial number...... 2

Manufacture date...... 2012, ISO week 255

Filter driver...... None

EDID revision...... 1.3

Input signal type...... Digital

Color bit depth...... Undefined

Display type..... RGB color

Screen size..... 520 x 320 mm (24.0 in)

Power management...... Standby, Suspend, Active off/sleep

Extension blocs..... 1 (CEA-EXT)

DDC/CI...... Not supported

Color characteristics

Default color space..... Non-sRGB

Display gamma...... 2.20

Red chromaticity..... Rx 0.674 - Ry 0.319

Green chromaticity..... Gx 0.188 - Gy 0.706

Blue chromaticity..... Bx 0.148 - By 0.064

White point (default).... Wx 0.313 - Wy 0.329

Additional descriptors... None

Timing characteristics

Horizontal scan range.... 30-83kHz

Vertical scan range..... 56-76Hz

Video bandwidth..... 170MHz

CVT standard...... Not supported

GTF standard...... Not supported

Additional descriptors... None

Preferred timing...... Yes

Native/preferred timing.. 1280x720p at 60Hz (16:10)

Modeline...... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync

Standard timings supported

720 x 400p at 70Hz - IBM VGA

640 x 480p at 60Hz - IBM VGA

640 x 480p at 75Hz - VESA

800 x 600p at 60Hz - VESA

800 x 600p at 75Hz - VESA

1024 x 768p at 60Hz - VESA

1024 x 768p at 75Hz - VESA

1280 x 1024p at 75Hz - VESA

1280 x 1024p at 60Hz - VESA STD

1600 x 1200p at 60Hz - VESA STD

1152 x 864p at 75Hz - VESA STD

EIA/CEA-861 Information

Revision number...... 3

IT underscan...... Supported

Basic audio...... Supported

YCbCr 4:4:4...... Supported

YCbCr 4:2:2.... Supported

Native formats...... 1

Detailed timing #1..... 1920x1080p at 60Hz (16:10)

Modeline...... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync

Detailed timing #2..... 1920x1080i at 60Hz (16:10)

Modeline...... "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync

Detailed timing #3..... 1280x720p at 60Hz (16:10)

Modeline...... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync

Detailed timing #4..... 720x480p at 60Hz (16:10)

Modeline...... "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync

CE video identifiers (VICs) - timing/formats supported

1920 x 1080p at 60Hz - HDTV (16:9, 1:1)

1920 x 1080i at 60Hz - HDTV (16:9, 1:1)

1280 x 720p at 60Hz - HDTV (16:9, 1:1) [Native]

720 x 480p at 60Hz - EDTV (16:9, 32:27)

720 x 480p at 60Hz - EDTV (4:3, 8:9)

720 x 480i at 60Hz - Doublescan (16:9, 32:27)

720 x 576i at 50Hz - Doublescan (16:9, 64:45)

640 x 480p at 60Hz - Default (4:3, 1:1)

NB: NTSC refresh rate = (Hz*1000)/1001

CE audio data (formats supported)

LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz

CE vendor specific data (VSDB)

IEEE registration number. 0x000C03

CEC physical address..... 1.0.0.0

Maximum TMDS clock..... 165MHz

CE speaker allocation data

Channel configuration.... 2.0

Front left/right..... Yes

Front LFE...... No

Front center...... No

Rear left/right..... No

Rear center...... No

Front left/right center.. No

Rear left/right center... No

Rear LFE...... No

Report information

Date generated...... 01/12/2016

Software revision...... 2.90.0.1020

Data source...... Real-time 0x0071

Operating system...... 6.1.7601.2.Service Pack 1

Technical Specifications

Input:1 HDBT on an RJ-45 female connector
Outputs:4 HDBT on RJ-45 female connectors
Extension Line / Range:HDBaseT 1.0 compliantUp to 40m (130ft) at 4K@60Hz (4:2:0)Up to 70m (230ft) at full HD (1080p@60Hz 36bpp)Note: The specs only apply when using Kramer HDBaseT cables. This reach applies to each IN and OUT port separately; the total end-to-end reach is the sum of all ports' reach.
Video:Up to 4K@60Hz (4:2:0) resolution; Up to 10.2Gbps (3.4Gbps per graphic channel) data rate; Complies with HDMI 2.0 and HDCP 1.4
Controls:Front panel:EDID SETUP buttonIndicator LEDs: OUTPUTS CONNECTED 1-4, HDBT LINK 1-4,ACTIVE INPUT, ONMini-USB for RS-232 Protocol 3000 communicationRear Panel:SETUP DIP-switches
Power Source:5.2V DC/4A power supply unit
Power Consumption:5V DC, 3.5A
Enclosure:Desktop size, Aluminum type
Cooling:Fan ventilation
Operating Temperature:0° to +40°C (32° to 104°F)
Storage Temperature:-40° to +70°C (-40° to 158°F)
Humidity:10% to 90%, RHL non-condensing
Dimensions:21.5cm x 16.3cm x 4.4cm (8.4" x 6.4" x 1.8") W, D, H
Shipping Dimensions:35.1cm x 21.2cm x 7.2cm (13.8" x 8.3" x 2.8") W, D, H
Weight:0.53kg (1.17lb)
Shipping Weight:1.29kg (2.84lb)
Included Accessories:Power supply
Specifications are subject to change without notice atwww.kramerav.comFor optimum range and performance use the recommended Kramer cables available atwww.kramerav.com/product/VM-4DT

Default Communication Parameters

Serial USB
Baud Rate:115,200
Data Bits:8
Stop Bits:1
Parity:None
Factory Reset
Protocol 3000:FACTORY command to reset to factory default configuration
Protocol 3000
Command Format:ASCII protocol 3000
Example (get the input signal status):#SIGNAL? 1,1

Protocol 3000

The VM-4DT 1:4 HDBT Distributor can be operated using the Kramer Protocol 3000 serial commands. The command framing varies according to how you interface with the VM-4DT.

Generally, a basic video input switching command that routes a layer 1 video signal to HDMI out 1 from HDMI input 2 (ROUTE 1, 1, 2), is entered as follows:

• Terminal communication software, such as Hercules:

Hercules SETUP utility by HW-group.com UDP Setup Serial | TCP Client | TCP Serve | UDP | Text Mode | About | Received/Sent data #ROUTE 1,1,2-01@MUTE 1,1 -01@ROUTE 1,1,2 -01@VMUTE 1,0 -01@VMUTE 1,0 -01@ROUTE 1,1,2 Serial Name: COM3 Sust: 115260 Data size: 8 Partly: none Handover: OFF Mode: Free Close Send: #ROUTE 1.1.2/CRs HEX Send HEX Send HEX Send HWsgroup www.HW-group.com Hercules SETUP utility Version: 3.1.2

Kramer VM-4DT - Protocol 3000 - 2

The framing of the command varies according to the terminal communication software.

• K-Touch Builder (Kramer software):

Kramer VM-4DT - Protocol 3000 - 3

• K-Config (Kramer configuration software):

Command Syntax Display Command as Hex Decimal ASCII "#ROUTE 1,1,2".0x00 Set Clear

Kramer VM-4DT - Protocol 3000 - 5

All the examples provided in this section are based on using the K-Config software.

You can enter commands directly using terminal communication software (e.g., Hercules) by connecting a PC to the serial or Ethernet port on the VM-4DT. To enter CR press the Enter key (LF is also sent but is ignored by the command parser).

Commands sent from various non-Kramer controllers (e.g., Crestron) may require special coding for some characters (such as, /x##). For more information, refer to your controller's documentation.

For more information about Protocol 3000 commands, see:

• Understanding Protocol 3000 on page 16
• Kramer Protocol 3000 Syntax on page 17
• Protocol 3000 Commands on page 18

Understanding Protocol 3000

Protocol 3000 commands are structured according to the following:

  • Command – A sequence of ASCII letters (A-Z, a-z and -). A command and its parameters must be separated by at least one space.
  • Parameters – A sequence of alphanumeric ASCII characters (0-9, A-Z, a-z and some special characters for specific commands). Parameters are separated by commas.
  • Message string – Every command entered as part of a message string begins with a message starting character and ends with a message closing character.

Kramer VM-4DT - Understanding Protocol 3000 - 1

A string can contain more than one command. Commands are separated by a pipe ( | ) character.

• Message starting character:

  • – For host command/query

  • \~ – For device response

- Device address – K-NET Device ID followed by @ (optional, K-NET only)

- Query sign – ? follows some commands to define a query request

• Message closing character:

  • CR – Carriage return for host messages (ASCII 13)
  • CR LF – Carriage return for device messages (ASCII 13) and line-feed (ASCII 10)

- Command chain separator character – Multiple commands can be chained in the same string. Each command is delimited by a pipe character ( | ). When chaining commands, enter the message starting character and the message closing character only at the beginning and end of the string.

Kramer VM-4DT - Understanding Protocol 3000 - 2

Spaces between parameters or command terms are ignored. Commands in the string do not execute until the closing character is entered. A separate response is sent for every command in the chain.

Kramer Protocol 3000 Syntax

The Kramer Protocol 3000 syntax uses the following delimiters:

  • CR = Carriage return (ASCII 13 = 0x0D)
    • LF = Line feed (ASCII 10 = 0x0A)
  • SP = Space (ASCII 32 = 0x20)

Some commands have short name syntax in addition to long name syntax to enable faster typing. The response is always in long syntax.

The Protocol 3000 syntax is in the following format:

- Host Message Format:

StartAddress (optional)BodyDelimiter
#Device_id@MessageCR

- Simple Command – Command string with only one command without addressing:

StartBodyDelimiter
#Command SPParameter_1,Parameter_2,...CR

- Command String – Formal syntax with command concatenation and addressing:

StartAddressBodyDelimiter
#Device_id@Command_1Parameter1_1,Parameter1_2,.../Command_2Parameter2_1,Parameter2_2,.../Command_3Parameter3_1,Parameter3_2,...|...CR

• Device Message Format:

StartAddress (optional)BodyDelimiter
~Device_id@MessageCR LF

- Device Long Response – Echoing command:

StartAddress (optional)BodyDelimiter
~Device_id@Command SP [Param1,Param2 ...] resultCR LF

Protocol 3000 Commands

This section includes the following commands:

• System Commands on page 18
• EDID Handling Commands on page 23

System Commands

CommandDescription
#Protocol handshaking (system mandatory)
BUILD-DATEGet device build date (system mandatory)
FACTORYReset to factory default configuration
HELPGet command list (system mandatory)
MODELGet device model (system mandatory)
PROT-VERGet device protocol version (system mandatory)
RESETReset device (system mandatory)
SNGet device serial number (system mandatory)
DISPLAYGet output HPD status
NAMESet/get machine (DNS) name (system – Ethernet)
SIGNALGet input signal lock status (system)
HDCP-STATGet HDCP signal status

FunctionsPermissionTransparency
Set:#End UserPublic
Get:---
DescriptionSyntax
Set:Protocol handshaking#CR
Get:--
Response
~nn@SPOKCR LF
Notes
Validates the Protocol 3000 connection and gets the machine numberStep-in master products use this command to identify the availability of a device
K-Config Example
“#”, 0x0D

BUILD-DATE

FunctionsPermissionTransparency
Set:---
Get:BUILD-DATE?End UserPublic
DescriptionSyntax
Set:--
Get:Get device build date#BUILD-DATE? CR
Response
~nn@BUILD-DATE SP date SP time CR LF
Parameters
date - Format: YYYY/MM/DD where YYYY = Year, MM = Month, DD = Daytime - Format: hh:mm:ss where hh = hours, mm = minutes, ss = seconds
K-Config Example
"#BUILD-DATE?", 0x0D

FACTORY

FunctionsPermissionTransparency
Set:FACTORYEnd UserPublic
Get:---
DescriptionSyntax
Set:Reset device to factory default configuration#FACTORYCR
Get:--
Response
~nn@FACTORYSPOKCR LF
Notes
This command deletes all user data from the device. The deletion can take some time.Your device may require powering off and powering on for the changes to take effect.
K-Config Example
"#FACTORY", 0x0D

HELP

FunctionsPermissionTransparency
Set:---
Get:HELPEnd UserPublic
DescriptionSyntax
Set:--
Get:Get command list or help for specific command1. #HELP CR2. #HELP SP COMMAND_NAME CR
Response
1.Multi-line: ~nn@Device available protocol 3000 commands: CR LF command, SP command... CR LF2.Multi-line: ~nn@HELP SP command: CR LF description CR LF USAGE: usage CR LF
Parameters
COMMAND_NAME – name of a specific command
Notes
To get help for a specific command use: HELPSP COMMAND_NAME CR LF
K-Config Example
"#HELP", 0x0D

MODEL

FunctionsPermissionTransparency
Set:---
Get:MODEL?End UserPublic
DescriptionSyntax
Set:--
Get:Get device model#MODEL?CR
Response
~nn@MODELSPmodel_nameCR LF
Parameters
model_name - String of up to 19 printable ASCII chars
Notes
This command identifies equipment connected to Step-in master products and notifies of identity changes to the connected equipment. The Matrix saves this data in memory to answer REMOTE-INFO requests
K-Config Example
"#MODEL?", 0x0D

PROT-VER

FunctionsPermissionTransparency
Set:---
Get:PROT-VER?End UserPublic
DescriptionSyntax
Set:--
Get:Get device protocol version#PROT-VER?CR
Response
~nn@PROT-VERSP3000:versionCR LF
Parameters
version - XX.XX where X is a decimal digit
K-Config Example
"#PROT-VER?", 0x0D

RESET

FunctionsPermissionTransparency
Set:RESETAdministratorPublic
Get:---
DescriptionSyntax
Set:Reset device#RESETCR
Get:--
Response
~nn@RESET SPOK CR LF
Notes
To avoid locking the port due to a USB bug in Windows, disconnect USB connections immediately after running this command. If the port was locked, disconnect and reconnect the cable to reopen the port.
K-Config Example
"#RESET", 0x0D

SN

FunctionsPermissionTransparency
Set:---
Get:SN?End UserPublic
Description Syntax
Set:--
Get:Get device serial number#SN?CR
Response
~nn@SNSPserial_numberCR LF
Parameters
serial_number - 11 decimal digits, factory assigned
Notes
This device has a 14 digit serial number, only the last 11 digits are displayed
K-Config Example
“#SN?", 0x0D

DISPLAY

FunctionsPermissionTransparency
Set:---
GetDISPLAY?End UserPublic
DescriptionSyntax
Set:--
Get:Get output HPD status#DISPLAY?SPout_idCR
Response
~nn@DISPLAYSPout_id,statusCR LF
Parameters
out_id-1 (Output 1), 2 (Output 2), 3 (Output 3), 4 (Output 4)status-HPD status according to signal validation:0 (Off), 1 (On), 2 (On and all parameters are stable and valid)
Response Triggers
A response is sent to the com port from which the Get was received, after command execution and:After every change in output HPD status from On to Off (0)After every change in output HPD status from Off to On (1)After every change in output HPD status form Off to On and all parameters (new EDID, etc.) are stable and valid (2)
K-Config Example
Get the output HPD status of Output 1:"#DISPLAY? 1",0x0D

NAME

FunctionsPermissionTransparency
Set:NAMEAdministratorPublic
Get:NAME?End UserPublic
DescriptionSyntax
Set:Set machine (DNS) name#NAME SP machine_name CR
Get:Get machine (DNS) name#NAME? CR
Response
Set: ~nn@NAME SP machine_name CR LF Get: ~nn@NAME? SP machine_name CR LF
Parameters
machine_name - String of up to 14 alpha-numeric characters (can include hyphens but not at the beginning or end)
Notes
The machine name is not the same as the model name. The machine name is used to identify a specific machine or a network in use (with DNS feature on).
K-Config Example
Set the DNS name of the device to “room-442”: "#NAME room-442", 0x0D

SIGNAL

FunctionsPermissionTransparency
Set:---
GetSIGNAL?End UserPublic
DescriptionSyntax
Set:--
Get:Get input signal lock status#SIGNAL?SPinp_idCR
Response
~nn@SIGNALSPinp_id,statusCR LF
Parameters
inp_id - input number: 1 (Input)status - signal status according to signal validation: 0 (Off), 1 (On)
Response Triggers
After execution, a response is sent to the com port from which the Get was receivedA response is sent after every change in input signal status from On to Off or from Off to On
K-Config Example
Get the input signal status:"#SIGNAL? 1", 0x0D

HDCP-STAT

FunctionsPermissionTransparency
Set:---
GetHDCP-STAT?End UserPublic
DescriptionSyntax
Set:None-
Get: Get HDCP signal status#HDCP-STAT?SPstage, stage_idCR
Response
~nn@HDCP-STATSPstage, stage_id, statusCR LF
Parameters
stage - 0 (input), 1 (output)stage_id - for input stage: 1 (Input), for output stage 1 (Output 1), 2 (Output 2), 3 (Output 3), 4 (Output 4)status - signal encryption On/Off status: 0 (HDCP Off), 1 (HDCP On), 2 (Follow input), 3 (Mirror output (Mac mode))
Response Triggers
Response is sent to the com port from which the Set (before execution) / Get command was receivedResponse is sent to all com ports after execution if HDCP-STAT was set by any other external control device (button press, device menu and similar) or HDCP mode changed.
Notes
On output - sink statusOn input - signal status
K-Config Example
Get the HDCP signal status of the input:"#HDCP-STAT? 0,1",0x0D

EDID Handling Commands

Additional EDID data functions can be performed via a compatible EDID management application, such as Kramer EDID Designer (see www.kramerav.com/product/EDID%20Designer).

CommandDescription
CPEDIDCopy EDID data from the output to the input EEPROM

CPEDID

FunctionsPermissionTransparency
Set:CPEDIDEnd UserPublic
Get:---
DescriptionSyntax
Set:Copy EDID data from the output to the input EEPROM#CPEDIDSPsrc_type, src_id, dst_type, dest_bitmapCR
Get:--
Response
~nn@CPEDIDSPsrc_type, src_id, dst_type, dest_bitmapCR LF
Parameters
src_type - EDID source type (usually output): 0 (Input), 1 (Output), 2 (Default EDID)src_id - for input source: 1 (Input), for output source: 0 (Default EDID source), 1 (Output 1), 2 (Output 2), 3 (Output 3), 4 (Output 4)dst_type - EDID destination type (usually input): 0 (input), 1 (output), 2 (default EDID)dest_bitmap - bitmap representing destination IDs. Format: XXXX...X, where X is hex digit. The binary form of every hex digit represents corresponding destinations. Setting '1' indicates that EDID data is copied to this destination. Setting '0' indicates that EDID data is not copied to this destination.
Response Triggers
Response is sent to the com port from which the Set was received (before execution)
Notes
Destination bitmap size depends on device properties (for 64 inputs it is a 64-bit word)Example: bitmap 0x0013 means inputs 1, 2 and 5 are loaded with the new EDID.In this device, if the destination type is input (0), the bitmap size is 1 bit, for example bitmap 0x1 means the input is loaded with the new EDID.
K-Config Example
Copy the EDID data from Output 1 (EDID source) to the Input:"#CPEDID 1,1,0,0x1",0x0DCopy the EDID data from the default EDID source to the Input:"#CPEDID 2,0,0,0x1",0x0D

The warranty obligations of Kramer Electronics Inc. ("Kramer Electronics") for this product are limited to the terms set forth below:

What is Covered

This limited warranty covers defects in materials and workmanship in this product.

What is Not Covered

This limited warranty does not cover any damage, deterioration or malfunction resulting from any alteration, modification, improper or unreasonable use or maintenance, misuse, abuse, accident, neglect, exposure to excess moisture, fire, improper packing and shipping (such claims must be presented to the carrier), lightning, power surges, or other acts of nature. This limited warranty does not cover any damage, deterioration or malfunction resulting from the installation or removal of this product from any installation, any unauthorized tampering with this product, any repairs attempted by anyone unauthorized by Kramer Electronics to make such repairs, or any other cause which does not relate directly to a defect in materials and/or workmanship of this product. This limited warranty does not cover cartons, equipment enclosures, cables or accessories used in conjunction with this product.

Without limiting any other exclusion herein, Kramer Electronics does not warrant that the product covered hereby, including, without limitation, the technology and/or integrated circuit(s) included in the product, will not become obsolete or that such items are or will remain compatible with any other product or technology with which the product may be used.

How Long this Coverage Lasts

The standard limited warranty for Kramer products is seven (7) years from the date of original purchase, with the following exceptions:

  1. All Kramer VIA products are covered by a standard three (3) year warranty for VIA hardware and a standard one (1) year warranty for firmware and software updates. (An extended software warranty plan for an additional 2 years can be purchased separately).
  2. All Kramer fiber optic cables and adapters, all Kramer speakers and Kramer touch panels are covered by a standard one (1) year warranty.
  3. All Kramer Cobra products, all Kramer Calibre products, all Kramer Minicom digital signage products, all HighSecLabs products, all streaming, and all wireless products are covered by a standard three (3) year warranty.
  4. All Sierra Video MultiViewers are covered by a standard five (5) year warranty.
  5. Sierra switchers & control panels are covered by a standard seven (7) year warranty (excluding power supplies and fans that are covered for three (3) years).
  6. K-Touch software is covered by a standard one (1) year warranty for software updates.
  7. All Kramer passive cables are covered by a ten (10) year warranty.

Who is Covered

Only the original purchaser of this product is covered under this limited warranty. This limited warranty is not transferable to subsequent purchasers or owners of this product.

What Kramer Electronics Will Do

Kramer Electronics will, at its sole option, provide one of the following three remedies to whatever extent it shall deem necessary to satisfy a proper claim under this limited warranty:

  1. Elect to repair or facilitate the repair of any defective parts within a reasonable period of time, free of any charge for the necessary parts and labor to complete the repair and restore this product to its proper operating condition. Kramer Electronics will also pay the shipping costs necessary to return this product once the repair is complete.
  2. Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same function as the original product.
  3. 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.

What Kramer Electronics Will Not Do Under This Limited Warranty

If this product is returned to Kramer Electronics or the authorized dealer from which it was purchased or any other party authorized to repair Kramer Electronics products, this product must be insured during shipment, with the insurance and shipping charges prepaid by you. If this product is returned uninsured, you assume all risks of loss or damage during shipment. Kramer Electronics will not be responsible for any costs related to the removal or re-installation of this product from or into any installation. Kramer Electronics will not be responsible for any costs related to any setting up this product, any adjustment of user controls or any programming required for a specific installation of this product.

How to Obtain a Remedy Under This Limited Warranty

To obtain a remedy under this limited warranty, you must contact either the authorized Kramer Electronics reseller from whom you purchased this product or the Kramer Electronics office nearest you. For a list of authorized Kramer Electronics resellers and/or Kramer Electronics authorized service providers, visit our web site at www.kramerav.com or contact the Kramer Electronics office nearest you.

In order to pursue any remedy under this limited warranty, you must possess an original, dated receipt as proof of purchase from an authorized Kramer Electronics reseller. If this product is returned under this limited warranty, a return authorization number, obtained from Kramer Electronics, will be required (RMA number). You may also be directed to an authorized reseller or a person authorized by Kramer Electronics to repair the product.

If it is decided that this product should be returned directly to Kramer Electronics, this product should be properly packed, preferably in the original carton, for shipping. Cartons not bearing a return authorization number will be refused.

Limitation of Liability

THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR UNDER ANY OTHER LEGAL THEORY. Some countries, districts or states do not allow the exclusion or limitation of relief, special, incidental, consequential or indirect damages, or the limitation of liability to specified amounts, so the above limitations or exclusions may not apply to you.

Exclusive Remedy

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS LIMITED WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT PERMITTED BY LAW, KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF KRAMER ELECTRONICS CANNOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW, THEN ALL IMPLIED WARRANTIES COVERING THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY TO THIS PRODUCT AS PROVIDED UNDER APPLICABLE LAW.

IF ANY PRODUCT TO WHICH THIS LIMITED WARRANTY APPLIES IS A "CONSUMER PRODUCT" UNDER THE MAGNUSON-MOSS WARRANTY ACT (15 U.S.C.A. §2301, ET SEQ.) OR OTHER APPLICABLE LAW, THE FOREGOING DISCLAIMER OF IMPLIED WARRANTIES SHALL NOT APPLY TO YOU, AND ALL IMPLIED WARRANTIES ON THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE PARTICULAR PURPOSE, SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW.

Other Conditions

This limited warranty gives you specific legal rights, and you may have other rights which vary from country to country or state to state.

This limited warranty is void if (i) the label bearing the serial number of this product has been removed or defaced, (ii) the product is not distributed by Kramer Electronics or (iii) this product is not purchased from an authorized Kramer Electronics reseller. If you are unsure whether a reseller is an authorized Kramer Electronics reseller, visit our web site at www.kramerav.com or contact a Kramer Electronics office from the list at the end of this document.

Your rights under this limited warranty are not diminished if you do not complete and return the product registration form or complete and submit the online product registration form. Kramer Electronics thanks you for purchasing a Kramer Electronics product. We hope it will give you years of satisfaction.

CE 22 PAP

ISO 9001:2008 Certified Quality Management System IQC Institute of Quality & Control ISO 14001:2004 Certified Environmental Management System IQC Institute of Quality & Control OHSAS 18001:2007 Certified OHS Management System

P/N: 2900-300799 Rev: 1

Kramer VM-4DT - Other Conditions - 4

SAFETY WARNING

Disconnect the unit from the power supply before opening and servicing

For the latest information on our products and a list of Kramer distributors, visit our Web site where updates to this user manual may be found.

We welcome your questions, comments, and feedback.

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Product information

Brand : Kramer

Model : VM-4DT

Category : Hi-Fi System