KRAMER ELECTRONIC S LTD.
USER MANUAL
MODEL:
VM-2 HD
HD/SD-SDI DA
P/N: 2900-000194 Rev 3
VM-2HD – 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-2HD HD/SD-SDI DA 5
4 Connecting the VM-2HD 6
5 Technical Specifications 7
Figures
Figure 1: VM-2HD HD/SD-SDI DA 5
Figure 2: Connecting the VM-2HD HD/SD-SDI DA 6
VM-2HD - 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-2HD HD/SD-SDI DA, which is
ideal for the following typical applications:
SDI production studios for signal distribution and equalizations
Broadcast studios for on-air operation and SDI field production
Using with SDI video sources such a professional digital camera
2
VM-2HD - 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-2HD away from moisture, excessive sunlight and
dust
VM-2HD - 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-2HD - Overview
3 Overview
The VM−2HD is a high−performance distribution amplifier for HD−SDI signals. It
takes one input, provides reclocking and equalization and distributes the signal to
two identical outputs.
In particular, the VM-2HD features:
A range of up to 200m
Video bandwidth of 1.485Gbps that enables it to be used for standard definition
and high definition serial digital video signals (SD/HD-SDI)
Passing of digital information (embedded audio, Teletext, time code and so
on) during the vertical interval period
SMPTE 292M, 259M and 344M compliance and support for data rates of
143, 177, 270, 360, 540, 1483.5, 1485Mbps
Automatic, multi-rate, equalization and reclocking for losses typical with long
runs of 75 co-axial cable up to 200m
LEDs indicating the SDI resolution
VM-2HD - Overview
5
#
Feature
Function
1
HD LED
Lights when the SDI signal is HD
2
SD LED
Lights when the SDI signal is SD
3
INPUT BNC connector
Connects to the SDI source
4
ON LED
Lights when receiving power
5
OUT 1 BNC connector
Connects to the SDI acceptor 1
6
OUT 2 BNC connector
Connects to the SDI acceptor 2
7
12V DC
+12V DC connector for powering the unit
3.1 Defining the VM-2HD HD/SD-SDI DA
This section defines the VM-2HD.
Figure 1: VM-2HD HD/SD-SDI DA
6
VM-2HD - Connecting the VM-2HD
Always switch off the power to each device before connecting it to your
VM-2HD. After connecting your VM-2HD, connect its power and then
switch on the power to each device.
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4 Connecting the VM-2HD
To connect the VM-2HD as illustrated in the example in Figure 2:
1. Connect an HD-SDI/SD-SDI video source (for example, a camera) to the
INPUT BNC connector.
2. Connect up to two video OUT BNC connectors to the appropriate
HD-SDI/SD-SDI video acceptors (for example, displays).
You do not have to connect both outputs.
3. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 2).
Figure 2: Connecting the VM-2HD HD/SD-SDI DA
VM-2HD - Technical Specifications
7
INPUT:
1 SMPTE-259M, 292M, 344M serial video, 75 ohms on a
BNC connector
OUTPUTS:
2 equalized and reclocked SMPTE-259M, 292M, 344M
outputs 75 ohms on BNC connectors
MAX. OUTPUT LEVEL:
800mVpp /75 ohms
COUPLING:
AC
POWER CONSUMPTION:
12 V DC, 250mA
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:
6.22cm x 5.24cm x 2.41 cm (2.45" x 2.06" x 0.95") W, D, H.
WEIGHT:
0.14 kg (0.31 lbs.) approx.
ACCESSORIES:
Power supply, mounting bracket
Specifications are subject to change without notice at http://www.kramerelectronics.com
5 Technical Specifications
8
VM-2HD - Technical Specifications
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:
2900-000194
Rev:
3
!
SAFETY WARNIN G
Disconnect the unit from the power
supply before opening and servicing
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