Kramer VM-20HDxl User manual

Kramer Electronics, Ltd.
USER MANUAL



VM-20HDxl
3G Dual 1:10 HD/SD – SDI Distribution Amplifier

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
4 Your VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier 3
5 Installing the VM-20HDxl in a Rack 6
6 Connecting the VM-20HDxl 7
7 Technical Specifications 8
Figures
Figure 1: VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier 4
Figure 2: Connecting the VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier 7
Tables
Table 1: VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier Features 5
Table 2: Technical Specifications of the VM-20HDxl 8

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 500-plus different models
now appear in eight groups
1
that are clearly defined by function.
Congratulations on purchasing your Kramer VM-20HDxl 3G Dual 1:10
HD
2
/SD
3
- SDI Distribution Amplifier, which is ideal for:
SDI production studios for signal distribution
Broadcast studios for on-air operation
SDI field production
Using with SDI video sources such as professional digital cameras
The package includes the following items:
VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier
Power cord
This user manual
4
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 cables
5
1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 High Definition (HD) means a video format, consisting of either 720 active lines of progressive video or 1080 lines of either
progressive or interlaced video
3 Standard Definition (SD) means an NTSC or PAL compatible video format, consisting of 480 (for NTSC) or 576 (for PAL)
lines of interlaced video
4 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
5 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.

Overview
3
3 Overview
The VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier is a high
performance dual channel distribution amplifier for SDI (SMPTE 259M and
SMPTE 344M) and HD-SDI (SMPTE 292M) signals. It will take one input
per channel, provide reclocking and equalization and distribute each signal to
10 dual outputs, using BNC connectors.
In particular, the VM-20HDxl:
Can be configured as a 1:20 DA
Has an active loop BNC connector on each channel, for cascading
additional units
Has a data rate of up to 2.97Gbps – enabling it to be used for standard
definition, high definition and the new 3G high definition serial digital
video signals (SD/HD-SDI)
Supports up to 300m cable equalization (300m for SD signals, 200m for
1.5Gbps HD signals, and 100m for 3Gbps HD signals)
Is SMPTE 259M, 292M and 424M compliant and supports data rates of
270Mbps, 1483.5Mbps, 1485Mbps and 2970Mbps
Provides automatic, multi-rate, equalization and reclocking for losses
typical with long runs of 75co-axial cable
Has HD and SD output indication LEDs for each channel
To achieve the best performance:
Connect 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)
Avoid interference from neighboring electrical appliances and position
your Kramer VM-20HDxl away from moisture, excessive sunlight and
dust
4 Your VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution
Amplifier
Figure 1 and Table 1 define the VM-20HDxl 3G Dual 1:10 HD/SD - SDI
Distribution Amplifier:

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier
4
Figure 1: VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier

Your VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier
5
Table 1: VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier Features
# Feature Function
1 POWER Switch Illuminated switch for turning the unit ON or OFF
2 SD
1
LED The green LED lights when the SDI signal in channel A is SD
3 CHANNEL A HD
2
LED The blue LED lights when the SDI signal in channel A is HD
4 HD
2
LED The blue LED lights when the SDI signal in channel B is HD
5 CHANNEL B
SD
1
LED The green LED lights when the SDI signal in channel B is SD
6 VIDEO IN Connects to the channel B SDI source
7 LOOP Connects the channel B input to the video input of an
additional unit or to the channel A video input
3
8
CHANNEL B
BNC
Connectors VIDEO
OUTPUTS
Connects to the channel B SDI acceptors (from 1 to 10)
9 VIDEO IN Connects to the channel A SDI source
10 LOOP Connects the channel A input to the video input of an
additional unit or to the channel B video input
3
11
CHANNEL A
BNC
Connectors VIDEO
OUTPUTS
Connects to the channel A SDI acceptors (from 1 to 10)
12 Power Connector with Fuse AC connector enabling power supply to the unit
1 Standard Definition (SD) means an NTSC or PAL compatible video format, consisting of 480 (for NTSC) or 576 (for PAL)
lines of interlaced video
2 High Definition (HD) means a video format, consisting of either 720 active lines of progressive video or 1080 lines of either
progressive or interlaced video
3 To create a 1:20 distribution amplifier (connect the LOOP output of one of the channels to the VIDEO IN of the other
channel)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing the VM-20HDxl in a Rack
6
5 Installing the VM-20HDxl in a Rack
This section describes what to do before installing in a rack and how to rack
mount.
Before Installing in a Rack How to Rack Mount
Before installing in a rack, be sure that the environment is
within the recommended range:
Operating temperature range +5º to +45º C (41º to 113º F)
Operating humidity range 10 to 90% RHL, non-condensing
Storage temperature range -20º to +70º C (-4º to 158º F)
Storage humidity range 5 to 95% RHL, non-condensing

CAUTION!!
When installing in a 19" rack, avoid hazards by taking
care that:
1. It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
2. Once rack mounted, enough air will still flow around
the machine.
3. The machine is placed straight in the correct
horizontal position.
4. You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the
product label.
5. The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention to situations where
electricity is supplied indirectly (when the power cord
is not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip, and that you use only the power cord that is
supplied with the machine.
To rack-mount a machine:
1. Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the
machine (3 on each side), and
replace those screws through the
ear brackets.
2. Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided)
through each of the four holes in the
rack ears.
Note that:
In some models, the front panel
may feature built-in rack ears
Detachable rack ears can be
removed for desktop use
Always mount the machine in the
rack before you attach any cables
or connect the machine to the
power
If you are using a Kramer rack
adapter kit (for a machine that is not
19"), see the Rack Adapters user
manual for installation instructions
(you can download it at:
http://www.kramerelectronics.com)

Connecting the VM-20HDxl
7
6 Connecting the VM-20HDxl
To connect the VM-20HDxl, as the example in Figure 2 illustrates, do the
following
1
:
1. Connect an HD-SDI/SD-SDI video source (for example, an HD/SD SDI
camera) to the CHANNEL A VIDEO IN BNC connector.
2. Connect the CHANNEL A LOOP BNC connector to the CHANNEL B
VIDEO IN BNC connector.
3. Connect up to
2
20 VIDEO OUTPUT BNC connectors to the appropriate
HD/SD SDI video acceptors (for example, HD/SD SDI displays).
4. Connect the power cord (not illustrated in Figure 2).
Figure 2: Connecting the VM-20HDxl 3G Dual 1:10 HD/SD - SDI Distribution Amplifier
1 Switch OFF the power on each device before connecting it to your VM-20HDxl. After connecting your VM-20HDxl,
switch on its power and then switch on the power on each device
2 You do not have to connect all the outputs, connect only those that are required and leave the other output(s) unconnected

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
8
7 Technical Specifications
Table 2 includes the technical specifications:
Table 2: Technical Specifications
1
of the VM-20HDxl
INPUTS: 2 SMPTE-259M / 292M / 424M serial video, 75on BNC connectors
OUTPUTS: 22 equalized and reclocked SMPTE-259M / 292M / 424M outputs, 75on
BNC connectors
RESOLUTION: 8 and 10-bits (automatic)
MAX. OUTPUT LEVEL: 800mVpp /75 ohms
DATA RATE: Up to 2.97Gbps
COUPLING: AC
POWER SOURCE: 100240VAC; 50/60Hz, 9VA
DIMENSIONS: 19-inch (W), 7-inch (D), 1U (H)
WEIGHT: 1.5kg. (3.3lbs.) approx.
ACCESSORIES: Power cord
1 Specifications are subject to change without notice

9
LIMITED WARRANTY
WHO IS PROTECTED?
WHAT IS COVEREDAND WHAT IS NOT COVERED
WHAT WE WILLPAY 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 TH E 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:
Thiswarranty gives you specific legal rights, and you may also have other rights, whichvary fromplace toplace.
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 and 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 attemptedrepair 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 inconjunction 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 suppliedDC 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.
NOTE:
Part 1:

Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: inf[email protected]
P/N: 2900-000381 REV 1
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.