Kramer Electronics Marine Radio VM 4HD User Manual

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  
4
 
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  
2
P/N:  
Rev:  
Kramer Electronics, Ltd.  
P/N: 2900-000062 REV 2  
 

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