Kramer Electronics, Ltd.
USER MANUAL
Model:
VM-10xl
Video Audio Distribution Amplifier
Contents
Contents
1
Introduction 1
2
Getting Started 1
2.1 Quick Start 1
3
Overview 3
4
Your VM-10xl Video Audio Distribution Amplifier 3
5
Installing on a Rack 6
6
Using the VM-10xl Video Audio Distribution Amplifier 7
6.1 Connecting a VM-10xl Video Audio Distribution Amplifier 7
6.2 Increasing the Outputs 9
7
Technical Specifications 11
Figures
Figure 1: VM-10xl Video Audio Distribution Amplifier 4
Figure 2: Connecting a single VM-10xl Video Audio Distribution Amplifier 8
Figure : Increasing the Outputs: arranging a 1:30 Video Audio DA 10
Tables
Table : Front Panel VM-10xl Video Audio Distribution Amplifier Features 5
Table : Rear Panel VM-10xl Video Audio Distribution Amplifier Features 5
Table : Technical Specifications of the VM-10xl Video Audio Distribution Amplifier 11
i
Introduction
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation 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 8 Groups1, which are clearly defined
by function.
Congratulations on purchasing your Kramer VM-10xl Video Audio
Distribution Amplifier. The VM-10xl is ideal for:
Audio video duplication studios
Rental/staging, CCTV, and home theater use
Each package includes the following items:
VM-10xl Video Audio Distribution Amplifier
Power cord
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
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
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 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
1
Getting Started
2
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
3 Overview
The VM-10xl is a high quality 1:10 video audio distribution amplifier using
BNC connectors for composite video, and RCA connectors for unbalanced
stereo audio signals. The VM-10xl accepts a composite video input and
distributes the signal to 10 identical outputs.
In particular, the VM-10xl:
Includes looping connectors for connecting to a local monitor, other
acceptor, or for forming larger systems1
Has a video bandwidth of 360MHZ, ensuring transparent performance
with typical video and audio sources
Can function as unbalanced stereo audio or balanced2 mono audio
(selected via an audio control button)
Can output video signals that are DC or AC coupled for maximum
flexibility (selected via a coupling button)
Has front panel video trimmer controls3 for output level and cable
equalization (EQ.), as well as audio trimmer controls for left and right
gain, with an enable / disable control button
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-10xl away from moisture, excessive sunlight and
dust
4 Your VM-10xl Video Audio Distribution Amplifier
Figure 1 and Table 1 define the VM-10xl Video Audio Distribution Amplifier:
1 For example, you can connect 3 VM-10xl units to make a 1:30 video audio distribution amplifier. See section 6.2 for details
2 Recommended for low signal transmission over long distances or in audio broadcasting studios for high quality signal
recreation
3 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths
3
Your VM-10xl Video Audio Distribution Amplifier
Figure 1: VM-10xl Video Audio Distribution Amplifier
4
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-10xl Video Audio Distribution Amplifier
Table : Front Panel VM-10xl Video Audio Distribution Amplifier Features
# Feature Function
1 POWER Switch Illuminated switch supplying power to the unit
2 BAL/ST Button Pushing in selects balanced mono audio operation, releasing
3 LEFT GAIN Trimmer Adjusts1 the audio signal level for the left channel
4 Enable/Disable Button Pushing in enables audio gain trimmer control, releasing bypasses
AUDIO
5
6 EQ. Trimmer Adjusts1 the video EQ. (equalization) compensation of outputs 6 to
7 LEVEL Trimmer Adjusts1 the video signal level of outputs 6 to 10
8 LEVEL Trimmer Adjusts1 the video signal level of outputs 1 to 5
9
CONTROL
RIGHT GAIN Trimmer Adjusts1 the audio signal level for the right channel
VIDEO
CONTROL
EQ. Trimmer Adjusts1 the video EQ. (equalization) compensation of outputs 1 to 5
selects unbalanced stereo audio operation
it disabling audio gain trimmer control
10
Table : Rear Panel VM-10xl Video Audio Distribution Amplifier Features
# Feature Function
10 VIDEO IN BNC Connector Connects to the video source
11 LOOP BNC Connector For looping to increase output availability
12 TERM Button
13 COUPLING Button Pushing in selects DC coupling3, releasing selects AC
14 VIDEO OUT BNC Connectors Connect to the video acceptors (from 1 to 10)
15 AUDIO IN RCA Connectors Connects to the stereo audio source (R and L)
16 AUDIO LOOP RCA Connectors For looping to increase audio output availability (R and L)
17 AUDIO OUTPUTS RCA Connectors Connect to the stereo audio acceptors R and L, from 1 to 10)
18 Power Connector with Fuse AC connector enabling power supply to the unit
Pushing in selects 75, releasing selects Hi-Z2
coupling (removing the DC offset of the input signal)
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
2 For looping select Hi-Z
3 Achieving the best linearity and signal fidelity
5
Installing on a Rack
Before installing on a rack, be sure that the environment is
Before Installing on a Rack
5 Installing on a Rack
This section describes what to do before installing on a rack and how to rack
mount.
How to Rack Mount
within the recommended range:
Operating temperature range +5 to +45 Deg. Centigrade
Operating humidity range
Storage temperature range
Storage humidity range
When installing on a 19" rack, avoid hazards by taking
care that:
It is located within the recommended environmental
1
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
Once rack mounted, enough air will still flow around the
2
machine.
The machine is placed straight in the correct horizontal
3
position.
You do not overload the circuit(s). When connecting
4
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.
The machine is earthed (grounded) in a reliable way
5
and is connected only to an electricity socket with
grounding. Pay particular attention
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
and that you use only the power cord that is
strip,
supplied with the machine.
5 to 65% RHL, non-condensing
-20 to +70 Deg. Centigrade
5 to 95% RHL, non-condensing
CAUTION!!
to situations where
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.
Place the ears of the machine
2
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)
6
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the VM-10xl Video Audio Distribution Amplifier
6 Using the VM-10xl Video Audio Distribution Amplifier
You can connect:
A single VM-10xl unit (see section 6.1)
Several VM-10xl units to increase the number of outputs (see section 6.2)
6.1 Connecting a VM-10xl Video Audio Distribution Amplifier
You can connect a single VM-10xl Video Audio Distribution Amplifier unit
as a 1:10 video audio DA, in which audio is unbalanced stereo audio (left and
right) or balanced mono audio (+ and -).
To connect the VM-10xl as a 1:10 video unbalanced stereo audio DA, as the
example in Figure 2 illustrates, do the following1:
1. Connect a video audio source (for example, a composite video player) to
the VIDEO IN BNC connector and to the left and right AUDIO IN RCA
connectors.
2. Connect2 the 10 VIDEO OUT BNC connectors and the 10 left and right
AUDIO OUTPUT RCA connectors to the video audio acceptors3 1 to 10.
3. Connect the power cord to the mains electricity.
4. Push in the Term button to terminate the line to 75.
5. Release the BAL/ST button to select unbalanced stereo audio operation.
6. If required, adjust4 the video trimmer controls5 for output signal level
and/or cable compensation equalization level.
7. If audio control adjustment is required for left and/or right gain, push in
Enable/Disable button, and then adjust6 the trimmer controls.
1 Switch OFF the power on each device before connecting it to your VM-10xl. After connecting your VM-10xl, switch on its
power and then switch on the power on each device
2 As required. Up to 10 outputs can be connected on the VM-10xl. Not all outputs need to be connected
3 For example, VCR units
4 Insert a screwdriver into the hole and carefully rotate it, to trim the level
5 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths
6 Insert a screwdriver into the hole and carefully rotate it, to trim the level
7
Using the VM-10xl Video Audio Distribution Amplifier
Figure 2: Connecting a single VM-10xl Video Audio Distribution Amplifier
8
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the VM-10xl Video Audio Distribution Amplifier
6.2 Increasing the Outputs
You can increase the number of outputs by interconnecting VM-10xl units.
The example in Figure 2 illustrates how to connect 3 units to increase the
number of outputs from 10 to 30.
To form a 1:30 video and unbalanced stereo audio DA, do the following1:
1. Connect a video audio source (for example, a composite VCR) to the
VIDEO IN BNC connector and to the left and right AUDIO IN RCA
connectors of the first VM-10xl unit.
2. Connect the video LOOP BNC connector of the:
First VM-10xl unit to the VIDEO IN BNC connector of the second
VM-10xl unit
Second VM-10xl unit to the VIDEO IN BNC connector of the third
VM-10xl unit
3. Connect the left and right AUDIO LOOP RCA connectors of the:
First VM-10xl unit to the left and right AUDIO IN RCA connectors of
the second VM-10xl unit
Second VM-10xl unit to the left and right AUDIO IN RCA connectors
of the third VM-10xl unit
4. Connect the 10 VIDEO OUT BNC connectors and the 10 left and right
AUDIO OUTPUT RCA connectors of the:
First VM-10xl unit to the video audio acceptors2 1 to 10
Second VM-10xl unit to the video audio acceptors2 11 to 20
Third VM-10xl unit to the video audio acceptors2 21 to 30
5. On the first and second VM-10xl units, release the Term button. On the
third VM-10xl unit, push in the Term button to terminate the line to 75.
1 Switch OFF the power on each device before connecting it to your V M-10xl units. After connecting the VM-10xl units,
switch on their power and then switch on the power on each device
2 For example, VCR units
9
Using the VM-10xl Video Audio Distribution Amplifier
6. On each VM-10xl unit:
Connect the power cord to the mains electricity
Release the BAL/ST buttons to select unbalanced stereo audio
operation
Adjust1 the video trimmer controls2 for output signal level and/or cable
compensation equalization level, if required
If audio control adjustment is required for left and/or right gain, push in
the Enable/Disable buttons, and then adjust1 the trimmer controls
Figure : Increasing the Outputs: arranging a 1:30 Video Audio DA
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
2 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths
10
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
7 Technical Specifications
Table 3 includes the technical specifications:
Table : Technical Specifications1 of the VM-10xl Video Audio Distribution Amplifier
INPUTS:
OUTPUTS:
MAX. OUTPUT LEVEL: VIDEO: 1.6Vpp AUDIO: 26.5Vpp
BANDWIDTH (-3dB): VIDEO: 360MHz AUDIO: >100kHz
DIFF. GAIN: 0.07%
DIFF. PHASE: 0.05 Deg.
K-FACTOR: <0.05%
S/N RATIO: VIDEO: 77dB AUDIO: 87dB
CONTROLS: Front panel accessible trimmers for video level (-1.2dB to +6dB) and EQ. (0dB
COUPLING: VIDEO: DC/AC AUDIO: AC
AUDIO THD + NOISE: 0.023%
AUDIO 2nd HARMONIC: 0.001%
POWER SOURCE: 230 VAC 50 / 60Hz (115V U.S.A.), 4.7VA
DIMENSIONS: 19-inch (W), 7-inch (D), 1U (H)
WEIGHT: 2.1kg (4.7lbs.) approx.
ACCESSORIES: Power cord
1 composite video, 1 looping, 1Vpp/75 with termination switch on BNC
connectors
2 audio, stereo or balanced mono, 2 looping, on RCA connectors
10 composite video, 1Vpp/75 on BNC connectors
10 audio, stereo or balanced mono, on RCA connectors
to +8.1dB), audio left and right control trimmers (0dB to +6dB), balanced/stereo
selector switch and audio controls enable switch
1 Specifications are subject to change without notice
11
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
The lia bility of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall
Except as below, this warranty covers all defects in material or workmanship in this produc t. The following are not cove red
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
LIMI TED WARR ANTY
following terms.
HOW LONG IS THE WARRA NTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
WHO IS PROTECT ED?
Only the first purchase customer may enforce this warranty.
WHAT IS COVERED AND WHAT IS NOT COVERED
Kramer
by the wa rranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
www.kramerelectronics.com.
2. Any product, on which the serial number has been defaced, modified or removed.
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
WHAT WE WILL PAY FOR AN D WHAT WE WILL NOT PAY F OR
We will pay labor and material expenses for covered items. We will not pay for the following:
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 fro m whom the product was purchased.
3. Shipping charges.
HOW YOU CAN G ET WAR RANTY SERVICE
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 presen ted 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.
LIMI TATION OF IM PLIED WARRAN TIES
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
EXCLUSIO N O F DAMAGES
not be liable for:
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, cons equential or otherwise. Some countries may not allow limitations on how long an
implied warranty lasts and/or do not al low the exclusion or limitation of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.
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.
NOTE:
This equipment has been tested to d etermine compliance with the requirements of:
EN-50081: "Electromagnetic compatibility (EMC);
Residential, commercial and light industry"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.
CFR-47: FCC Rules and Re gulations:
CAUT ION!
generic emission standard.
Part 1:
Part 1: Residential, commercial and light industry environment".
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
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.
12
KRAMER: SIMPLE CREATIVE TECHNOLOGY
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.
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.
Caution
Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N: 2900-001042 REV 3
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