Kramer VM-1H4C User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
VM-1H4C
1:4 HDMI Over CAT 5 DA
P/N: 2900-300133 Rev 4

VM-1H4C – Contents
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Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 2
2.3 Shielded Twisted Pair 3
2.4 About the Power Provision Feature 3
2.5 Recycling Kramer Products 4
3Overview 5
4Defining the VM-1H4C 1:4 HDMI Over CAT 5 DA 6
5Connecting the VM-1H4C 7
5.1 Connecting a Controller to the RS-232 Port 8
6Acquiring the EDID 9
7Wiring the Twisted Pair RJ-45 Connectors 10
8Technical Specifications 11
9Default EDID 12
Figures
Figure 1: VM-1H4C 1:4 HDMI Over CAT 5 DA Front and Rear Panels 6
Figure 2: Connecting the VM-1H4C 7
Figure 3: TP Pinout Wiring 10

VM-1H4C –Introduction
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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 1,000-plus different models now appear in 11 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 and GROUP 11:
Sierra Products.
Thank you for purchasing the Kramer VM-1H4C 1:4 HDMI Over CAT 5 DA which
is ideal for:
Home theater, presentation and multimedia applications
Rental and staging

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VM-1H4C –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 http://www.kramerelectronics.com/support/product_downloads.asp
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 neighboring electrical appliances that may adversely
influence signal quality
Position your Kramer VM-1H4C away from moisture, excessive sunlight and
dust
This equipment is to be used only inside a building. It may be
connected only 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 input power wall
adapter that is provided with the unit.
Warning:
Disconnect the power and unplug the unit from the wall
before installing
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VM-1H4C –Getting Started
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2.3 Shielded Twisted Pair
Kramer engineers have developed special shielded twisted pair cables to best
match our digital twisted pair products; the Kramer: BC-DGKat524 (CAT 5 24
AWG), the Kramer BC-DGKat623 (CAT 6 23 AWG), and the Kramer
BC-DGKat7a23 (CAT 7a 23 AWG) cables. These specially built cables
significantly outperform regular CAT 5/CAT 6 /CAT 7a cables.
The VM-1H4C supports a range of up to:
Up to 90m (295ft) at 1080i, or up to 30m (98ft) at 1080p on shielded
BC-DGKat524 cable
Up to 90m (295ft) at 1080i, or up to 70m (230ft) at 1080p on shielded
BC-DGKat623 cable
Up to 100m (330ft) at 1080i or up to 90m (295ft) at 1080p on shielded
BC-DGKat7a23 cable
You can daisy-chain up to six DigiKat devices with the maximum overall distance
between the first and last devices being cumulative and limited to 500m.
2.4 About the Power Provision Feature
Only the VM-1H4C needs to be connected to a power source when the devices
are within 90m (270ft) of each other –the VM-1H4C can provide power to the
receiver over the TP cable. This feature applies as long as the cable can carry
power and the distance does not exceed 90m on standard TP cable. For longer
distances, heavier gauge cable should be used (standard TP cable is still suitable
for the video/audio transmission, but not for feeding the power at these distances).

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VM-1H4C –Getting Started
2.5 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 http://www.kramerelectronics.com/support/recycling/.

VM-1H4C –Overview
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3 Overview
The high quality VM-1H4C is a distribution amplifier for HDMI, IR and bidirectional
RS-232 signals over TP (Twisted Pair) cable. It reclocks and equalizes the input
signal and distributes it to four TP outputs simultaneously.
More specifically, the VM-1H4C:
Supports up to 4.95Gbps data rate (1.65Gbps per graphic channel)
Can read and store the default EDID or the EDID block from one or a mix of
the output display devices in non-volatile memory, so it can then provide the
EDID information to the source even if the display device is not connected
Displays the video output on all of the four outputs at the same time (once
they are ready to display the output) upon power up
Features I-EDIDPro™ Kramer Intelligent EDID Processing™ – Intelligent
EDID handling & processing algorithm ensures Plug and Play operation for
HDMI systems
Supports 3D Pass-through, x.v.Color™ and uncompressed audio channels
(Dolby TrueHD, DTS-HD)
Is HDCP compliant
Features LEDs indicating a live input and the active output
Has a remote IR 3.5mm mini jack that supports bidirectional IR signals
Supports bidirectional, RS-232 serial data
Is 12V DC fed and is housed in a Kramer Desktop enclosure

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VM-1H4C –Defining the VM-1H4C 1:4 HDMI Over CAT 5 DA
4 Defining the VM-1H4C 1:4 HDMI Over CAT 5
DA
The VM-1H4C encodes the HDMI, IR and RS-232 signals and transmits them over
TP cable to a compatible receiver (for example, the Kramer TP-574 HDMI/RS-232/
IR Line Receiver).
Figure 1 defines the front and rear panels of the VM-1H4C.
Figure 1: VM-1H4C 1:4 HDMI Over CAT 5 DA Front and Rear Panels
#
Feature
Function
1
POWER LED
Lights green when the unit receives power
2
REMOTE IR 3.5mm Mini Jack
Connect to the remote IR emitter or receiver
3
INPUT LED
Lights green when the input receives a signal. Flashes when
connected but there is no active signal
4
EDID
READ Button
Press to capture the EDID from the active output, (see
Section 6)
5
SELECT Button
Press to select the output from which to capture the EDID
6
OUTPUT 1~4 LEDs
The relevant LED lights green when that output is connected
7
INPUT HDMI Connector
Connect to the HDMI source
8
RS-232 9-pin D-sub
Connector
Connect to an RS-232 controller, (see Section 5.1)
9
OUT 1 ~ 4
TP Output
RJ-45
Connectors
Connect to the LINE IN RJ-45 connector on the TP receivers,
for example, TP-574, (see Section 7)
10
12V DC Power Connector
Connect to the +12V DC power adapter. Center pin positive

VM-1H4C –Connecting the VM-1H4C
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5 Connecting the VM-1H4C
Always switch off the power to all devices before connecting them to
your VM-1H4C.
Figure 2: Connecting the VM-1H4C
Warning:
Using a TP cable that is incorrectly wired may cause
permanent damage to the device
To connect the VM-1H4C as illustrated in the example in Figure 2:
1. Connect the HDMI source, (for example, a DVD player) to the Input (HDMI)
connector.
2. Connect the TP RJ-45 outputs to up to four TP acceptors, (for example,
TP-574).
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