KRAMER ELECTRONIC S LTD.
USER MANUAL
MODEL:
VM-4 HC
1:4 HDMI DA
P/N: 2900-000716 Rev 4
VM-4HC – Contents
i
Contents
1 Introduction 1
2 Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3
3 Overview 4
3.1 Defining the VM-4HC 1:4 HDMI DA 5
4 Connecting the VM-4HC 6
4.1 Acquiring the EDID 6
5 Technical Specifications 9
6 Default EDID 10
Figures
Figure 1: VM-4HC 1:4 HDMI DA 5
Figure 2: Connecting the VM-4HC 1:4 HDMI DA 8
VM-4HC - Introduction
1
1 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 video, audio, presentation, and broadcasting professionals
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 11 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 and GROUP 11:
Sierra Products.
Congratulations on purchasing your Kramer VM-4HC 1:4 HDMI DA, which is ideal
for the following typical applications:
Home theater, presentation and multimedia applications
Rental and staging
2
VM-4HC - Getting Started
Go to http://www.kramerelectronics.com/support/product_downloads.asp
to check for up-to-date user manuals, application programs, and to check
if firmware upgrades are available (where appropriate).
This equipment is to be used only inside a building. It may only be
connected to other equipment that is installed inside a building.
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!
2 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
2.1 Achieving the Best Performance
To achieve 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 neighboring electrical appliances that may adversely
influence signal quality
Position your Kramer VM-4HC away from moisture, excessive sunlight and
dust
VM-4HC - Getting Started
3
Caution:
There are no operator serviceable parts inside the unit
Warning:
Use only the Kramer Electronics input power wall
adapter that is provided with the unit
Warning:
Disconnect the power and unplug the unit from the wall
before installing
!
2.2 Safety Instructions
2.3 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 http://www.kramerelectronics.com/support/recycling/.
4
VM-4HC - Overview
3 Overview
The Kramer VM-4HC is a high quality 1:4 HDMI distributor that accepts an HDMI
input and distributes the signal to up to four outputs simultaneously, thus making it
a versatile, reliable component in a video system. The VM-4HC distributes signals
having resolutions up to UXGA, including all HDTV formats.
In particular, the VM-4HC features:
A maximum data rate of 6.75Gbps (2.25Gbps per graphic channel)
HDTV compatibility and HDCP compliance
Simultaneous display of the video output on all of the four outputs (once they
are ready to display the output) upon power up
Kramer Equalization & re-Klocking™ Technology that rebuilds the digital
signal to travel longer distances
I-EDIDPro™ Kramer Intelligent EDID Processing™, an intelligent EDID
handling & processing algorithm ensures Plug and Play operation for HDMI
systems
EDID acquisition from a single output, all connected outputs (auto-mix) or a
default EDID
HDMI support for Deep Color, x.v.Color™, up to 7.1 Uncompressed Audio
Channels
3D pass thru
Active input & output LED Indictors
Compact size where 2 units can be rack mounted side-by-side in a 1U rack
space with the optional RK-1 adapter and a 5V DC mains power adapter
VM-4HC - Overview
5
#
Feature
Function
1
POWER LED
Lights red when the unit receives power
2
EDID READ Button
Press to read the EDID of the selected output
3
EDID SELECT Button
Press to cycle through the output EDID sources
4
OUTPUT 1-4 LEDs
Lights green when an output(s) is connected and
active; LEDs flash when selecting EDID (see
Section 4.1)
5
INPUT HDMI Connector
Connect to the HDMI source
6
OUT 1-4 HDMI Connectors
Connect to the HDMI acceptors 1 to 4
7
5V DC Power Connector
Connect to the power adapter, center pin positive
3.1 Defining the VM-4HC 1:4 HDMI DA
This section defines the VM-4HC.
Figure 1: VM-4HC 1:4 HDMI DA
6
VM-4HC - Connecting the VM-4HC
Always switch off the power to each device before connecting it to your
VM-4HC. After connecting your VM-4HC, connect its power and then
switch on the power to each device.
i
4 Connecting the VM-4HC
To connect the VM-4HC as illustrated in the example in Figure 2:
1. Connect the HDMI source, for example, a DVD player to the INPUT
connector.
2. Connect the HDMI OUTPUT connectors to up to 4 HDMI acceptors as
follows:
As required. Up to four outputs can be connected. Not all outputs need to be connected.
OUTPUT 1 to display device 1 (for example, a plasma display)
OUTPUT 2 to display device 2 (for example, a plasma or LCD display)
OUTPUT 3 to display device 3 (for example, an LCD TV)
OUTPUT 4 to display device 4 (for example, a plasma display)
3. Connect the power adapter to the device and to the mains electricity (not
shown in Figure 2).
4. If required, acquire the EDID (see Section 4.1).
4.1 Acquiring the EDID
Initially the VM-4HC operates with the factory default EDID stored in the nonvolatile memory. The source reads the EDID from the device when the device is
plugged in or powered on.
The EDID can be acquired from:
One of the outputs
The default EDID
Up to four connected outputs using the Auto-mix Mode
The EDID acquired is a weighted average of all the connected outputs. For example, if
several displays with different resolutions are connected to the outputs, the acquired
EDID supports all the resolutions, as well as other parameters included in the EDID
VM-4HC - Connecting the VM-4HC
7
Repeatedly pressing the EDID SELECT button cycles through the EDID sources in
the following order:
If you attempt to acquire the EDID from an output that is not connected the default EDID is
acquired.
Output 1 (Output 1 LED lights)
Output 2 (Output 2 LED lights)
Output 3 (Output 3 LED lights)
Output 4 (Output 4 LED lights)
Default EDID (all LEDs light)
Auto-Mix EDID (the LEDs flash in a running sequence)
To store the selected EDID, press EDID READ as described in the following
example.
To cancel the EDID modification wait for a few seconds without touching any button.
Select the EDID from Output 3:
1. Press the EDID SELECT button repeatedly until OUTPUT 3 LED lights.
2. Press the EDID READ button.
When the LED stops flashing the EDID from Output 3 is stored at the input.
Pressing the EDID SELECT button briefly once causes the relevant LEDs to
indicate which EDID is stored at the input, as follows:
OUTPUT 1 LED flashes—the EDID from OUTPUT 1 was the last acquired
OUTPUT 2 LED flashes—the EDID from OUTPUT 2 was the last acquired,
and so on
All OUTPUT LEDs flash—the default EDID was the last acquired
All OUTPUT LEDs flash sequentially—the Auto-Mix EDID was the last
acquired
The EDID acquired is a weighted average of all the connected outputs. For example, if
several displays with different resolutions are connected to the outputs, the acquired
EDID supports all the resolutions, as well as other parameters included in the EDID
8
VM-4HC - Connecting the VM-4HC
Figure 2: Connecting the VM-4HC 1:4 HDMI DA
VM-4HC - Technical Specifications
9
INPUT:
1 HDMI connector
OUTPUTS:
4 HDMI connectors
MAX. DATA RATE:
6.75Gbps (2.25Gbps per graphic channel)
COMPLIANCE WITH HDMI
STANDARD:
Supports HDMI and HDCP
CONTROLS:
SELECT and READ buttons for selecting and storing
EDID information
INDICATOR LEDs:
POWER, OUTPUTS 1-4
POWER CONSUMPTION:
5V DC, 1.1A
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 (8.5” x 6.4” x 1.7”) W, D, H
WEIGHT:
0.6kg (1.32lbs) approx.
ACCESSORIES:
Power supply
OPTIONS:
RK−1 19" rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com
5 Technical Specifications
10
VM-4HC - Default EDID
6 Default EDID
Monitor
Model name VM-4HC
Manufacturer KRM
Plug and Play ID KRM0023
Serial number 505-707455010
Manufacture date 2009, ISO week 10
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 n/a
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
VM-4HC - Default EDID
11
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 15-Dec-11
Software revision 2.60.0.972
Data source File
Operating system 5.1.2600.2.Service Pack 3
Raw data
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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.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N:
2900-000716
Rev:
4
!
SAFETY WARNIN G
Disconnect the unit from the power
supply before opening and servicing
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