Kramer Electronics, Ltd.
USER MANUAL
VM-4HD
HD/SD – SDI Distributor
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-4HD HD/SD - SDI
Distributor, which is ideal for:
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SDI production studios for signal distribution and equalizations
Broadcast studios for on-air operation
SDI field production
Using with SDI video sources such a professional digital camera
The package includes the following items:
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VM-4HD HD/SD - SDI Distributor
Power adapter (12V DC Input)
This user manual2
2 Getting Started
We recommend that you:
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Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
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Review the contents of this user manual
Use Kramer high performance high resolution cables3
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
1
Getting Started
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
KRAMER: SIMPLE CREATIVE TECHNOLOGY
2
Overview
3 Overview
The VM-4HD HD/SD - SDI Distributor is a high performance 1:4 distributor
for all SDI video signals.
In particular, the VM-4HD:
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Accepts one input and distributes the signal to 4 identical outputs using
BNC connectors
Has a video bandwidth of 1.485GHz that allows it to be used for standard
definition and high definition serial digital video signals (SD/HD-SDI)
Is SMPTE 292M, 259M and 344M compliant and supports data rates of
143, 177, 270, 360, 540, 1483.5, 1485Mb/sec
Provides automatic, multi-rate, equalization and reclocking for losses
typical with long runs of 75W co-axial cable
Has LOCK, HD and SD output indication LEDs
Achieving the best performance means:
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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)
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Avoiding interference from neighboring electrical appliances that may
adversely influence signal quality and positioning your Kramer VM-4HD
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 unit1.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 For example: model number AD2512C, part number 2535-000251
3
Your VM-4HD HD/SD - SDI Distributor
4 Your VM-4HD HD/SD - SDI Distributor
Figure 1 and Table 1 define the VM-4HD HD/SD - SDI Distributor:
Figure 1: VM-4HD HD1/SD2 - SDI Distributor
Table 1: VM-4HD HD/SD - SDI Distributor Features
#
Feature
12V DC
Function
1
2
3
4
5
6
7
+12V DC connector for powering the unit
OUT BNC connectors Connects to the SDI acceptors (from 1 to 4)
INPUT BNC connector Connects to the SDI source
HD1 LED
Blue LED illuminates when the SDI signal is HD1
Green LED illuminates when the SDI signal is SD2
Green LED illuminates when an SDI signal is locked
Red LED Illuminates when receiving power
SDI
SD2 LED
LOCK LED
ON LED
1 High Definition (HD) means a video format, consisting of either 720 active lines of progressive video or 1080 lines
interlaced video
2 Standard Definition (SD) means an NTSC or PAL compatible video format, consisting of 480 (for NTSC) or 576 (for PAL)
lines of interlaced video
KRAMER: SIMPLE CREATIVE TECHNOLOGY
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Connecting the VM-4HD HD/SD - SDI Distributor
5 Connecting the VM-4HD HD/SD - SDI Distributor
To connect the VM-4HD, as the example in Figure 2 illustrates, do the following:
1. Connect a HD/SD SDI video source (for example, an HD/SD SDI
camera) to the INPUT BNC connector.
2. Connect up to1 4 video OUT BNC connectors to the appropriate HD /SD
SDI video acceptors (for example, HD/SD SDI displays).
3. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity.
Figure 2: Connecting the VM-4HD HD/SD - SDI Distributor
1 When four outputs are not required, connect only those that are required and leave the other output(s) unconnected
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Technical Specifications
6 Technical Specifications
Table 2 includes the technical specifications:
Table 2: Technical Specifications1 of the VM-4HD HD/SD - SDI Distributor
INPUTS:
1 SMPTE-259M, 292M, 344M serial video, 75 ohms on a BNC
connector
OUTPUTS:
4 equalized and reclocked SMPTE-259M, 292M, 344M outputs
75 ohms on BNC connectors
MAX. OUTPUT LEVEL: 800mVpp /75 ohms
MAX. DATA RATE:
COUPLING:
1.485Gbps
AC
POWER SOURCE:
DIMENSIONS:
WEIGHT:
ACCESSORIES:
OPTIONS:
12 V DC, 250mA
12cm x 7.5cm x 2.5cm (4.7” x 2.95” x 0.98”) W, D, H
0.3 kg (0.67 lbs.) approx.
Power supply, mounting brackets
19 inch rack adapters
1 Specifications are subject to change without notice
KRAMER: SIMPLE CREATIVE TECHNOLOGY
6
LIMITED WARRANTY
Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the
followingterms.
HOW LONGIS THE WARRANTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
WHO IS PROTECTED?
Only the first purchase customer may enforce this warranty.
WHATISCOVEREDANDWHATISNOT COVERED
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
by thewarranty:
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
2. Any product,on which the serialnumber has been defaced, modified or removed.
3. Damage, deterioration ormalfunctionresultingfrom:
i) Accident, misuse, abuse, neglect, fire, water, lightning orother acts of nature
ii) Product modification, or failure tofollowinstructions suppliedwith theproduct
iii) Repairorattemptedrepairby anyonenot authorized byKramer
iv) Anyshipmentofthe product(claims mustbepresentedtothe carrier)
v) Removalorinstallationofthe product
vi) Anyother cause, whichdoes notrelateto aproduct defect
vii) Cartons, equipment enclosures, cables or accessoriesusedinconjunctionwiththe product
WHATWE WILLPAYFORAND WHATWE WILLNOTPAYFOR
Wewillpay laborand material expensesforcovered items.Wewillnotpayfor thefollowing:
1. Removal or installationscharges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibility of theKramer dealerfromwhomtheproduct was purchased.
3. Shipping charges.
HOW YOU CAN GET WARRANTY 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 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.
LIMITATION OFIMPLIED WARRANTIES
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
EXCLUSIONOFDAMAGES
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall
notbeliable for:
1. Damage to other property caused by defects inthis product, damages basedupon inconvenience, loss ofuse of theproduct, loss
of time, commercialloss;or:
2. Any other damages, whether incidental, consequential or otherwise. Some countries may notallow 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 andexclusions maynotapplytoyou.
Thiswarranty gives youspecificlegalrights, andyou may alsohaveother rights, which varyfromplacetoplace.
NOTE:Allproducts returned to Kramer forservicemust havepriorapproval.Thismay be obtained fromyourdealer.
Thisequipment has been testedtodeterminecompliance with therequirements of:
EN-50081:
"Electromagneticcompatibility(EMC);
genericemissionstandard.
Part 1: Residential, commercialand lightindustry"
"Electromagneticcompatibility(EMC) genericimmunitystandard.
Part 1: Residential, commercialand lightindustryenvironment".
FCC Rules and Regulations:
EN-50082:
CFR-47:
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
CAUTION!
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 thesuppliedDCpower supplytofeed power to themachine.
Please userecommended interconnection cablestoconnectthe machineto other components.
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For the latest information on our products and a list of Kramer
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
2900- 000062
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P/N:
Rev:
Kramer Electronics, Ltd.
E-mail: [email protected]
P/N: 2900-000062 REV 2
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