Kramer VM-4UX User manual

USER MANUAL
MODEL:
VM-4UX
12G SDI 1:4 DA
P/N: 2900-300704 Rev 1 www.KramerAV.com

VM-4UX – Content
i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 2
2.3 Recycling Kramer Products 3
3Overview 4
4Connecting the VM-4UX 6
5Technical Specifications 7
Figures
Figure 1: VM-4UX 12G SDI 1:4 DA 5
Figure 2: Connecting to the VM-4UX 6

VM-4UX – 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 14 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; GROUP 11:
Sierra Video Products; GROUP 12: Digital Signage; GROUP 13: Audio; and
GROUP 14: Collaboration.
Congratulations on purchasing your Kramer VM-4UX 12G SDI 1:4 DA, which is
ideal for the following typical applications:
SDI video production studios
Broadcast studio and field SDI video production events
Staging and rental deployments
Medical facilities with highly reliable video deployments

2
VM-4UX –Getting Started
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
Go to www.kramerav.com/downloads/VM-4UX to check for up-to-date user
manuals, application programs, and to check if firmware upgrades are
available (where appropriate).
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 neighbouring electrical appliances that may adversely
influence signal quality
Position your VM-4UX away from moisture, excessive sunlight and dust
This equipment is to be used only inside a building. It may only be
connected to other equipment that is installed inside a building.
2.2 Safety Instructions
Caution:
There are no operator serviceable parts inside the unit
Warning:
Use only the Kramer Electronics power supply that is
provided with the unit
Warning:
Disconnect the power and unplug the unit from the wall
before installing

VM-4UX – Getting Started
3
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 www.kramerav.com/support/recycling/.

4
VM-4UX –Overview
3 Overview
The VM-4UX is a compact and high performance 1:4 4K distributor for standard
broadcast-grade SDI signals up to 12G transmitted data rate. It auto-adapts to the
data rate of the SDI input signal, equalizes and re-clocks the signal to improve
transmitted signal reach, and distributes the signal to two identical SDI outputs.
In particular, the VM-4UX features:
Reliable Connectivity –Coaxial broadcast-grade cables are reliably connected
via lockable BNC connectors, preventing unintentional disconnection and
resulting in fast and highly professional uncompressed SDI signal distribution
deployments.
Extended-reach Input Extension –Input signal equalization and output signal
reclocking to gain extended-reach signal extension. Using Kramer high-quality
coaxial SDI cables, supports extension of up to 80m (260ft) for 12G 4K signals.
Reach depends on signal resolution, and quality of copper cable used. For
further details, go to our website at www.kramerav.com/product/VM-4UX.
Reach extension performance may vary while using non-Kramer coaxial
cables.
SDI Signal Transmission –Auto-adapts to SDI, HD-SDI, 3G HD-SDI, 6G and
12G SDI compliant signals, supporting pass-through of standard embedded
audio channels with ancillary ID and metadata information.
Easy Installation and Maintenance –Compact TOOLS™ fan-less enclosure for
small footprint spaces and over-ceiling mounting, or side-by-side mounting of 3
units in a 1U rack space with the optional RK-3T rack adapter. Status
indicators for transmitted SDI data rate of input and output connected signals,
and power indicator, for ease of maintenance and troubleshooting.

VM-4UX – Overview
5
This section defines the VM-4UX.
Figure 1: VM-4UX 12G SDI 1:4 DA
#
Feature
Function
1
12G/6G LED (Blue)
Lights when the SDI signal is 12G or 6G
12G means a 2160p60 progressive video format
and 6G means a 2160p30 progressive video format
2
HD 1.5/3G LED
(Yellow)
Lights when the SDI signal is HD 1.5 or 3G
High Definition (HD) 1.5G means a 720p
progressive or 1080i interlaced video format and
3G means 1080p progressive video format
3
SD LED (Red)
Lights when the SDI signal is SD
Standard Definition (SD) means an NTSC or PAL
compatible video format, consisting of 480i or 480p
(for NTSC), or 576i or 576p (for PAL) of interlaced
or progressive video format
4
LOCK LED (Green)
Lights when the VM-4UX has detected the input
signal and was able to lock on that signal
5
ON LED (Green)
Lights when receiving power
6
INPUT BNC connector
Connect to the SDI source
7
OUT BNC connectors
Connect to the SDI acceptors (from 1 to 4)
OUT 1 + OUT 2 and OUT 3 + OUT 4 are both
paired outputs
8
5V DC
+5V DC connector for powering the unit

6
VM-4UX –Connecting the VM-4UX
4 Connecting the VM-4UX
Always switch off the power to each device before connecting it to
your VM-4UX. After connecting your VM-4UX, connect its power and
then switch on the power to each device.
You do not have to connect all the inputs and outputs, connect only
those that are required.
1. Connect a 12G SDI video source (for example, a 12G SDI camera) to the
INPUT BNC connector.
2. Connect up to four video OUT BNC connectors to the appropriate HD-SDI
video acceptors (for example, 12G SDI displays).
For best results, when only one of the paired outputs (OUT 1 + OUT 2 and OUT 3 + OUT
4) is connected, cover its pair connector with a 75Ω terminator (supplied).
For example, if only OUT 1 is connected, cover OUT 2 with a terminator (OUT 3 and
OUT 4 do not need to be covered).
3. Connect the 5V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 2).
Figure 2: Connecting to the VM-4UX

VM-4UX – Technical Specifications
7
5 Technical Specifications
Input:
1 SMPTE 259M (SD-SDI), 292M (HD-SDI), 344M (ED-SDI), 424M
(3G HD-SDI), ST-2081 (6G-SDI) and ST-2082 (12G-SDI) compliant
serial video, 75Ω on a BNC connector
Outputs:
4 equalized and reclocked SMPTE 259M (SD-SDI), 292M (HD-SDI),
344M (ED-SDI), 424M (3G HD-SDI), ST-2081 (6G-SDI) and
ST-2082 (12G-SDI), outputs 75Ω on BNC connectors
Cable Equalization
Reach:
12Gbps: Up to 80m (260ft)
3Gbps and 6Gbps: Up to 100m (330ft)
1.5Gbps: Up to 200m (660ft)
SD: Up to 300m (980ft)
Note: The above specs apply when using Kramer cables.
Video:
Up to 4K@60Hz (4:2:2) 30bpp resolution
270Mbps to 12Gbps data rate
Maximum Output
Level:
800mVpp /75Ω
Coupling:
AC
Standards
Compliance
SMPTE 259M (SD-SDI), 292M (HD-SDI), 344M (ED-SDI), 424M (3G
HD-SDI), ST-2081 (6G-SDI), ST-2082 (12G-SDI)
Power Consumption:
5V DC, 250mA
Power Source:
5.2V/4A
Enclosure:
Tools size, Aluminum type
Cooling:
Convection ventilation
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:
12.0cm x 7.1cm x 2.4cm (4.7" x 2.8" x 1.0") W, D, H.
Weight:
0.18kg (0.4lbs) approx.
Shipping Dimensions:
23.2cm x 12cm x 8.9cm (9.13” x 4.7” x 3.5”) W, D, H
Shipping Weight:
0.68kg (1.5lbs) approx.
Included Accessories:
Power supply, mounting bracket, 2 male BNC 75terminators
Options:
RK-3T 19” rack adapter
Specifications are subject to change without notice at www.kramerav.com
For optimum range and performance use the recommended Kramer cables available at
www.kramerav.com/product/VM-4UX

1
SAFETY WARNING
Disconnect the unit from the power supply before opening andservicing
For the latest information on our products and a list of Kramer distributors,
visit our Web site to find updates to this user manual.
We welcome your questions, comments, and feedback.
www.KramerAV.com
[e-mail]
P/N:
2900-300704
Rev:
1