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Kramer Electronics, Ltd.
USER MANUAL
Model:
VM-2HDCP
1:2 DVI Distributor
Page 2
Contents
i
Contents
1
Introduction 1
2
Getting Started 1
2.1
Quick Start 2
3
Overview 3
3.1
About HDCP 3
3.2
Defining EDID 4
3.3
Recommendations for Best Performance 4
4
Your VM-2HDCP 1:2 DVI Distributor 5
5
Connecting a VM-2HDCP 1:2 DVI Distributor 6
5.1
Acquiring the EDID 8
5.1.1 Acquiring / Changing the EDID 8
5.1.2 Acquiring the Clone EDID 9
6
Technical Specifications 9
Figures
Figure 1: VM-2HDCP 1:2 DVI Distributor 5
Figure 2: VM-2HDCP (Top Side Panel) 5
Figure 3: VM-2HDCP (Lower Side Panel) 5
Figure 4: Connecting a VM-2HDCP 1:2 DVI Distributor 7
Tables
Table 1: VM-2HDCP 1:2 DVI Distributor Features 6
Table 2: Technical Specifications of the VM-2HDCP 1:2 DVI Distributor 9
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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 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 11 groups1 that are clearly defined
by function.
Congratulations on purchasing your Kramer DigiTOOLS® VM-2HDCP 1:2
DVI Distributor.
The VM-2HDCP is ideal for:
Multiple screen applications
Rental and staging
Each package includes the following items:
VM-2HDCP 1:2 DVI Distributor
Power adapter (12V DC Input)
This user manual2
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
Use Kramer high performance high resolution cables3
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; 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 Products
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
Page 5
Overview
3
3 Overview
The Kramer VM-2HDCP is an HDCP (High-Bandwidth Digital Content
Protection)1 compatible 1:2 distribution amplifier for DVI-D (Digital) signals.
Since high-resolution DVI signals are very sensitive to cable quality and to
PCB layout, the VM-2HDCP uses a uniquely designed PCB which includes
all buffering, conditioning and amplifying circuitry to provide two high-level
output signals.
In particular, the VM-2HDCP:
Distributes signals having resolutions up to UXGA, including all HDTV
formats
Has a bandwidth of 1.65GHz
Supports the DDWG DVI 1.0 standard
Consists of a built-in re-clocking block that re-generates the DVI signal,
so that several units may be cascaded
Can read and store, in non-volatile memory, the EDID2 block from one of
the outputs, so it can then provide the EDID information to the DVI
source even if the display device is not connected
Stores a default EDID for fast and efficient connection of the unit3
Has three DVI-I connectors, which are compatible with all types of DVI
cables
Is a cost-effective solution for distributing the TMDS signals used for
DVI, and uses state-of-the-art line drivers on both outputs
3.1 About HDCP
The High-Bandwidth Digital Content Protection (HDCP) standard4, protects
digital video and audio signals transmitted over DVI or HDMI connections
between two HDCP-enabled devices to eliminate the reproduction of
copyrighted material. To protect copyright holders (such as movie studios)
from having their programs copied and shared, the HDCP standard provides
for the secure and encrypted transmission of digital signals.
1 Note that Kramer Electronics Limited is an HDCP Licensee, see http://www.digital-cp.com/list/
2 EDID is Extended Display Identification Data
3 The default EDID feature lets you connect the VM-2HDCP without having to connect a display to the output
4 Developed by Intel
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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
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3.2 Defining EDID
The Extended Display Identification Data (EDID1) is a data-structure,
provided by a display, to describe its capabilities to the source. The EDID
enables the VM-2HDCP to “know” what kind of monitor is connected to the
output. The EDID includes the manufacturer’s name, the product type, the
timing data supported by the display, the display size, luminance data and (for
digital displays only) the pixel mapping data.
3.3 Recommendations for Best Performance
Achieving the best performance means:
Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and
elevated noise levels (often associated with low quality cables)
Avoiding interference from neighboring electrical appliances and
positioning your VM-2HDCP away from moisture, excessive sunlight
and dust
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit2.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 Defined by a standard published by the Video Electronics Standards Association (VESA)
2 For example: model number AD2512C, part number 2535-000251
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Your VM-2HDCP 1:2 DVI Distributor
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4 Your VM-2HDCP 1:2 DVI Distributor
Figure 1, Figure 2, Figure 3 and Table 1 define the VM-2HDCP:
Figure 1: VM-2HDCP 1:2 DVI Distributor
Figure 2: VM-2HDCP (Top Side Panel)
Figure 3: VM-2HDCP (Lower Side Panel)
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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting a VM-2HDCP 1:2 DVI Distributor
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Table 1: VM-2HDCP 1:2 DVI Distributor Features
# Feature Function
1 12V DC +12V DC connector for powering the unit
2 OUTPUT1 DVI Connector Connect to the DVI acceptor 1
3 OUTPUT2 DVI Connector Connect to the DVI acceptor 2
4 INPUT DVI Connector Connects to the DVI source
5 INPUT LED Lights when the input is active; blinks when the input is not valid
6 OUT 1 LED LED lights when OUTPUT 1 is connected and active; LED blinks
when selecting the EDID (see section 5.1)
7 OUT 2 LED LED lights when OUTPUT 2 is connected and active; LED blinks
when selecting the EDID (see section 5.1)
8 ON LED Lights when the unit is powered
9 EDID Button Press to read the EDID of the selected display (see section 5.1)
5 Connecting a VM-2HDCP 1:2 DVI Distributor
To connect the VM-2HDCP as illustrated in the example in Figure 4, do the
following:
1. Connect a DVI source (for example, a host computer) to the INPUT
connector.
2. Connect the OUTPUT connectors1 to one or both DVI acceptors, as
follows:
OUTPUT 1 connector to DVI acceptor 1 (for example, a projector)
OUTPUT 2 connector to DVI acceptor 2 (for example, a display)
3. Connect the 12V DC power adapter (wall transformer) to the 12V DC
socket and connect the transformer to the mains electricity.
4. Acquire the EDID (see section 5.1).
1 Both outputs do not need to be connected
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Connecting a VM-2HDCP 1:2 DVI Distributor
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Figure 4: Connecting a VM-2HDCP 1:2 DVI Distributor
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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting a VM-2HDCP 1:2 DVI Distributor
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5.1 Acquiring the EDID
Initially, the VM-2HDCP operates with the factory default EDID
1
. This lets
you connect the power before connecting either of the acceptors or the source.
You can acquire:
The Default EDID (both output LEDs blink)
The EDID from One Output (the relevant output illuminates)
You can also acquire the Clone EDID which copies the EDID data from the
acceptor bit-by-bit.
5.1.1 Acquiring / Changing the EDID
You can work with the default EDID or acquire or change an EDID via one
of the connected outputs. Use the EDID Setup button to acquire the output
EDID information.
To acquire or change the EDID of a new output display:
1. Connect the power supply.
The ON LED lights.
2. Connect the new output display device.
3. Press and hold the EDID button for more than three seconds and release.
The INPUT LED blinks and the OUT 1 LED and OUT 2 LED blink
alternately.
4. Press the EDID button again when the appropriate OUT LED lights, that
is, to copy the EDID from the display connected to the DVI:
OUT 1 connector, press the EDID button when the OUT1 LED is on
OUT 2 connector, press the EDID button when the OUT2 LED is on
In either case, the VM-2HDCP copies the EDID from the display. If no
display is connected to the selected DVI output, the default EDID will
be chosen.
Note that during the EDID setup, the respective OUT LED blinks. When that
output is connected, that OUT LED illuminates
1 The VM-2HDCP reads the EDID, which is stored in the non-volatile memory
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Technical Specifications
9
5.1.2 Acquiring the Clone EDID
To acquire the Clone EDID, do the following1:
1. Connect the new output display device (for example, to OUT 1).
2. Disconnect the power supply.
3. Reconnect the power supply while pressing the EDID button.
The ON LED lights and the OUT 1 and OUT 2 blink alternately.
4. Release the EDID button when the OUT 1 LED blinks.
The Clone EDID is stored in the non-volatile memory when the OUT 1
LED ceases to blink.
6 Technical Specifications
Table 2 includes the technical specifications:
Table 2: Technical Specifications2 of the VM-2HDCP 1:2 DVI Distributor
INPUT: 1 DVI, 1.2Vpp on a DVI Molex 24pin female connector; DDC signal 5Vpp (TTL)
OUTPUTS: 2 DVI, 1.2Vpp on DVI Molex 24pin female connectors; DDC signal 5Vpp (TTL)
BANDWIDTH: 1.65Gbps
CONTROLS: EDID button for selecting and storing EDID information
POWER SOURCE: 12V DC. 180mA
DIMENSIONS: 12.1cm x 7.18cm x 2.42cm (4.76” x 2.83” x 0.95”, W, D, H.)
WEIGHT: 0.28kg (0.62lbs) approx.
ACCESSORIES: Power supply, mounting bracket
OPTIONS: Kramer DVI cables3
1 This example refers to OUT 1. The same applies for OUT 2 if the acceptor is connected to OUT 2
2 Specifications are subject to change without notice
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
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KRAMER: SIMPLE CREATIVE TECHNOLOGY
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LIMITED WARRANTY
WHO IS PROTECTED?
WHAT IS COVERED AND WHAT IS NOT COVERED
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATION OF IMPLIED WARRANTIES
EXCLUSION OF DAMAGES
CAUTION!
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
following terms.
Kramer
HOW LONG IS THE WARRANTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
Only the first purchase customer may enforce this warranty.
We will pay labor and material expenses for covered items. We will not pay for the following:
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall
not be liable for:
This warranty gives you specific legal rights, and you may also have other rights, which vary from place to place.
All products returned to Kramer for service must have prior approval. This may be obtained from your dealer.
This equipment has been tested to determine compliance with the requirements of:
EN-50081: "Electromagnetic compatibility (EMC);
generic emission standard.
Residential, commercial and light industry"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.
Part 1: Residential, commercial a nd light industry environment".
CFR-47: FCC* Rules and Regulations:
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
by the warranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
www.kramerelectronics.com.
2. Any product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID
TAMPERED sticker has been torn,
3. Damage, deterioration or malfunction resulting from:
i) Accident, misuse, abuse, neglect, fire, water, lightning or other acts of nature
ii) Product modification, or failure to follow instructions supplied with the product
iii) Repair or attempted repair by anyone not authorized by Kramer
iv) Any shipment of the product (claims must be presented to the carrier)
v) Removal or installation of the product
vi) Any other cause, which does not relate to a product defect
vii) Cartons, equipment enclosures, cables or accessories used in conjunction with the product
1. Removal or installations charges.
2. Costs of
initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibility of the Kramer dealer from whom the product was purchased.
3. Shipping charges.
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,
company, address, and a description of the problem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
1. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the product, loss
of time, commercial loss; or:
2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the
equipment.
Use the supplied DC power supply to feed power to the machine.
Please use recommended interconnection cables to connect the machine to other components.
IF reattached, removed or otherwise interfered with.
* FCC and CE approved using STP cable (for twisted pair products)
NOTE:
Part 1:
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Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N: 2900-000268 REV 2
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com,
where updates to this user manual may be found.
We welcome your questions, comments and feedback.
Caution
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.
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