Kramer WP-120 User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
WP-120
XGA Line Receiver
P/N: 2900-000335 Rev 2

WP-120 – Contents
i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3
3Overview 4
3.1 About the Power Connect Feature 4
3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP) 4
3.3 Defining the WP-120 XGA Line Receiver 5
4Connecting the WP-120 7
4.1 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors 8
5Technical Specifications 9
Figures
Figure 1: WP-120 XGA Line Receiver Front 5
Figure 2: WP-120 XGA Line Receiver Sides and Rear 6
Figure 3: TP PINOUT 8

WP-120 - 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 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.
Congratulations on purchasing your Kramer WP-120 XGA Line Receiver, which is
ideal for the following typical applications:
Presentation and multimedia applications
Long range graphics distribution for schools, hospitals, security, and stores

2
WP-120 - 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 WP-120 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.
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WP-120 - Getting Started
3
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
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 http://www.kramerelectronics.com/support/recycling/.
!

4
WP-120 - Overview
3 Overview
The Kramer WP-120 wall plate is an XGA line receiver that receives an encoded
CAT5 signal transmitted by a transmitter (for example, the Kramer WP-110 or
PT-110), decodes it and converts it to an XGA output. In particular, the WP-120
features:
EQ. and level controls
The Power Connect™ feature where a single connection to the transmitter or
the receiver powers both units when the devices are within 150ft (50m) of
each other
12V DC power
3.1 About the Power Connect Feature
The Power Connect feature applies as long as the cable can carry power. The
distance does not exceed 50 meters on standard CAT 5 cable. For longer
distances, heavy gauge cable should be used. For a CAT 5 cable exceeding a
distance of 50 meters, separate power supplies should be connected to the
transmitter and to the receiver simultaneously.
CAT 5 cable is still suitable for the video/audio transmission, but not for feeding the power at
these distances
3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair
(UTP)
The decision whether to use shielded twisted pair (STP) cable or unshielded
twisted pair (UTP) cable depends on the nature of the application.
In applications with high interference, shielded twisted pair (STP) cable is
recommended. However, the shield itself does create a capacitance that degrades
the frequency response of the machines. For shorter distances, of 50m or so,
shielded twisted pair (STP) cable is preferred because it provides protection from
interference (degradation is not apparent).
For long range applications, unshielded twisted pair (UTP) cable is preferred.
However, the unshielded twisted pair (UTP) cable should be installed far away

WP-120 - Overview
5
from electric cables, motors and so on, which are prone to create electrical
interference.
3.3 Defining the WP-120 XGA Line Receiver
This section defines the WP-120.
Figure 1: WP-120 XGA Line Receiver Front
#
Feature
Function
1
XGA OUT 15-pin HD Connector
Connect to the XGA acceptor
2
ON LED
Illuminates when receiving power

6
WP-120 - Overview
Figure 2: WP-120 XGA Line Receiver Sides and Rear
#
Feature
Function
1
HS Switch (sync)
Slide the switch down (by default, both switches are set to
NORMAL) to invert the HS polarity (downgoing syncs)
Slide the switch up (to NORMAL) to retain the polarity
2
VS Switch (sync)
Slide the switch down to invert the VS polarity
Slide the switch up (to NORMAL) to retain the polarity
3
POWER
+12V PIN
Connect (+) to the connector for powering the unit
GND PIN
Connect (-) to ground
4
EQ. Trimmer
Adjust the cable compensation equalization level
Degradation and VGA/XGA signal loss can result from using
long cables (due to stray capacitance), sometimes leading to a
total loss of sharpness in high-resolution signals.
Use a screwdriver to carefully rotate the trimmer, adjusting the
appropriate level
5
Level Trimmer
Adjust the output signal level
6
Line IN RJ-45 Connector
Connect to the LINE OUT RJ-45 connector from a receiver
For example, the PT-110 or WP-110

WP-120 - Connecting the WP-120
7
4 Connecting the WP-120
Always switch off the power to each device before connecting it to your
WP-120. After connecting your WP-120, connect its power and then
switch on the power to each device.
To connect the WP-120:
1. Connect the line out RJ-45 connector of the transmitter to the pre-installed
UTP wiring in the wall box opening that connects via UTP cabling to the
LINE IN RJ-45 connector of the WP-120.
2. Connect your 12V DC power supply to the POWER SUPPLY pins, taking
care that polarity is correct.
Connect the wire labeled “+” to the +12V pin, and the wire labeled “–” to the GND pin.
3. Insert the WP-120 directly into the wall box opening, and then mount the
front panel securely using the screws.
4. Connect the XGA acceptor to the XGA OUT 15-pin HD connector.
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8
WP-120 - Connecting the WP-120
4.1 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors
This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45
connectors.
EIA /TIA 568B
Figure 3: TP PINOUT
PIN
Wire Color
1
Orange / White
2
Orange
3
Green / White
4
Blue
5
Blue / White
6
Green
7
Brown / White
8
Brown

WP-120 - Technical Specifications
9
5 Technical Specifications
INPUT:
1 RJ-45 connector
OUTPUT:
1 XGA on an 15-pin HD connector
MAX. OUTPUT LEVEL:
1.5Vpp
RESOLUTION:
Up to UXGA
DIFF. GAIN:
2.7% (for the transmitter/receiver pair)
DIFF. PHASE
0.22Deg
K-FACTOR:
<0.1%
S/N RATIO:
61dB
CONTROLS:
Level: -9.4dB to +2.2dB; EQ.: 0dB to +30.9dB
COUPLING:
DC
POWER CONSUMPTION:
12V DC, 250mA
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:
USA: 6.9cm x 3.8cm x 11.4cm (2.72" x 1.5" x 4.5", W, D, H)
Belgium and Germany: 8cm x 3.8cm x 8cm
(3.15" x 1.5" x 3.15", W, D, H)
UK and most of Europe: 8.6cm x 3.8cm x 8.6cm
(3.39" x 1.5" x 3.39", W, D, H)
WEIGHT:
0.14kg (0.31lbs) approx.
ACCESSORIES:
Power supply
OPTION:
RK−121WP 19" rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com

For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site: www.kramerelectronics.com
E-mail: [e-mail]
P/N:
2900-000335
Rev:
2
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing