Kramer WP-28 User manual

Kramer Electronics, Ltd.
USER MANUAL
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
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Models:
WP-27, Component/CV/YC – S/PDIF/Analog Transmitter
WP-28, Component/CV/YC – S/PDIF/Analog Receiver

Introduction
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
3.1 About the WP-27 / WP-28 3
3.2 About the Power Connect Feature 4
3.3 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP) 5
3.4 Recommendations for Achieving the Best Performance 5
4 Your WP-27 / WP-28 5
4.1 Your WP-27 Component/CV/YC – S/PDIF/Analog Transmitter 6
4.2 Your WP-28 Component/CV/YC – S/PDIF/Analog Receiver 7
5 Connecting the WP-27 / WP-28 9
5.1 Wiring the CAT 5 LINE IN / LINE OUT RJ-45 Connectors 11
6 Technical Specifications 12
Figures
Figure 1: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Front Panel 6
Figure 2: WP-27 Component/CV/YC – S/PDIF Line Transmitter Rear Panel 7
Figure 3: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Front Panel 7
Figure 4: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Rear Panel 8
Figure 5: Connecting the WP-27 / WP-28 10
Figure 6: CAT 5 PINOUT 11
Tables
Table 1: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Front Panel Features 6
Table 2: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Rear Panel Features 7
Table 3: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Front panel Features 8
Table 4: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Rear Panel Features 8
Table 5: CAT 5 PINOUT 11
Table 6: Technical Specifications of the WP-27 / WP-28 12

Introduction
1
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 Groups
1
, which are clearly defined
by function.
Congratulations on purchasing your Kramer WP-27 and WP-28 wall plates,
which are suitable for the following applications:
Presentation and multimedia applications
Long range graphics distribution for schools, hospitals, security, and stores
The package includes the following items:
WP-27 and/or WP-28
Power supply
2
, and this user manual
3
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
Use Kramer high performance high resolution cables
4
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
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
2 A separate power supply is included with each product
3 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2

Overview
3
3 Overview
This section describes:
A summary of the WP-27 / WP-28, see section 3.1
The power connect feature, see section 3.2
Using shielded twisted pair (STP) / unshielded twisted pair (UTP), see
section 3.3
Recommendations for achieving the best performance, see section 3.4
3.1 About the WP-27 / WP-28
The Kramer WP-27 and the WP-28 constitute a twisted pair transmitter and
receiver system for component/composite
1
or Y/C video, as well as stereo
analog / S/PDIF audio signals. Each unit can power or be powered by the other
unit over the same CAT5 cable.
The WP-27 transmitter converts the selected
2
video and audio signals into a
twisted pair signal and the WP-28 receiver decodes that signal back to its initial
stage. The WP-27 accepts either a component video, composite video or s-
Video source. The selected video source, as well as the selected audio source
3
is
transmitted to the WP-28, which outputs that source accordingly
4
.
If CV-Y/C is selected, the WP-27 accepts a CV
5
or Y/C
6
signal
7
and
transmits it over the CAT5 cable to the CV or Y/C output on the WP-28
receiver
If component video is selected
8
, the component video signal
7
is transmitted
over the CAT5 cable to the COMP output on the WP-28 receiver
If the ANALOG stereo audio source is selected via the AUDIO button, the
WP-27 converts it to a digital 48kHz 24 bit signal which is transmitted,
together with the video signal, over the CAT5 cable to the WP-28 receiver
If S/PDIF (digital audio) is selected via the AUDIO button, it is transmitted
together with the video signal over the CAT5 cable to the WP-28 receiver
1 Either s-Video or composite video (both inputs cannot be connected simultaneously)
2 Via two INPUT select buttons letting you choose the video signal input and the audio signal input
3 The audio signal is outputted to both outputs simultaneously
4 The WP-27 and WP-28 do not perform any video signal format conversion. A composite video source would need to be
routed to a composite video output or an s-Video source would need to be routed to an s-Video output. Similarly, a
component video source would need to be routed to a component video output
5 By connecting only a CV input and releasing the Y/C-CV COMP VIDEO INPUT button
6 By connecting only a Y/C input and releasing the Y/C-CV COMP VIDEO INPUT button
7 And audio signal
8 By pressing the Y/C-CV COMP VIDEO INPUT button

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
4
The WP-27 Transmitter includes:
An s-Video (Y/C) input on a 4p connector
A composite video (CV) input on an RCA connector
A component video (Y, Cb/Pb, Cr/Pr)
1
input on three RCA connectors
A VIDEO INPUT selector button
An analog audio input
A digital audio input (S/PDIF)
An AUDIO INPUT selector button
A CAT5 output for signal transmission to the WP-28
The WP-28 Receiver includes:
An s-Video (Y/C) output on a 4p connector
A composite video (CV) output on an RCA connector
A component video (Y, Cb/Pb, Cr/Pr)
1
output on 3 RCA connectors
A video output selector button
An analog audio output
A digital audio output (S/PDIF)
EQ. and LEVEL video output controls
A CAT5 input for receiving the signal from the WP-27
An ON LED and a LINK LED
3.2 About the Power Connect Feature
The Power Connect feature lets you power a transmitter / receiver system by
connecting just one power adapter— to either the transmitter or the receiver.
The other unit is fed via the cable connecting between the transmitter/receiver.
The Power Connect feature applies as long as the cable can carry power. The
distance does not exceed 50 meters on standard CAT5 cable, for longer
distances, heavy gauge cable should be used
2
.
For a CAT5 cable exceeding a distance of 50 meters, separate power supplies
should be connected to the transmitter and to the receiver simultaneously.
1 Also known as Y, B-Y, R-Y or YUV
2 CAT5 cable is still suitable for the video/audio transmission, but not for feeding the power at these distances

Your WP-27 / WP-28
5
3.3 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.
It is recommended that in applications with high interference, shielded twisted
pair (STP) cable is used. 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 non apparent).
For a long range application, unshielded twisted pair (UTP) cable is preferred.
However, the unshielded twisted pair (UTP) cable should be installed far away
from electric cables, motors and so on, which are prone to create electrical
interference.
3.4 Recommendations for Achieving the Best Performance
Achieving the best performance means:
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)
Avoiding interference from neighboring electrical appliances that may
adversely influence signal quality and positioning your WP-27 and/or
WP-28 in a location free from moisture and away from 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 unit
1
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
4 Your WP-27 / WP-28
This section describes the:
WP-27 Component/CV/YC – S/PDIF/Analog Transmitter, see section 4.1
WP-28 Component/CV/YC – S/PDIF/Analog Receiver, see section 4.2
1 For example: model number AD2512C, part number 2535-000251

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your WP-27 / WP-28
6
4.1 Your WP-27 Component/CV/YC – S/PDIF/Analog Transmitter
Figure 1
1
, Figure 2, Table 1 and Table 2 define the WP-27:
Figure 1: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Front Panel
Table 1: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Front Panel Features
# Feature Function
1 Holes (4) For fastening the wall plate in place
2 Y/C 4p Connector Connect to the s-Video source
3 CV RCA Connector Connect to the composite video source
4 Y/C-CV COMP Selector
Button
Push in to select COMP (component video); release to
select either Y/C (s-Video) or CV (composite video)
5 YRCA Connector
6 C B /P B RCA Connector Connect to the component video source
7
VIDEO INPUTS
C R /P R RCA Connector
8 ON LED Illuminates when receiving power
9 S/PDIF ANALOG Selector
Button
Push in to select ANALOG; release to select S/PDIF
10 S/PDIF RCA Connector Connect to the digital audio source
11
AUDIO
INPUTS
ANALOG 3.5mm Mini Jack
Connector
Connect to the analog audio source
1 Figure 1 illustrates the WP-27 version for the USA. There is also a similar version available for Europe

Your WP-27 / WP-28
7
Figure 2: WP-27 Component/CV/YC – S/PDIF Line Transmitter Rear Panel
Table 2: WP-27 Component/CV/YC – S/PDIF/Analog Transmitter Rear Panel Features
4.2 Your WP-28 Component/CV/YC – S/PDIF/Analog Receiver
Figure 3
1
, Figure 4, Table 3 and Table 4 define the WP-28:
Figure 3: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Front Panel
1 Figure 3 illustrates the WP-28 version for the USA. There is also a similar version available for Europe
# Feature Function
1 CAT5 OUT RJ-45 Connector Connects to the CAT5 IN connector on the WP-28
GND PIN Connects (-) to the Ground2 12V DC
FEED +PIN Connects (+) to the connector for powering the unit

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your WP-27 / WP-28
8
Table 3: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Front panel Features
# Feature Function
1 Holes (4) For fastening the wall plate in place
2 Y/C 4p Connector Connect to the s-Video acceptor
3 CV RCA Connector Connect to the composite video acceptor
4 Y/C-CV COMP Selector
Button
Push in to select COMP (component video); release to select
either Y/C (s-Video) or CV (composite video)
5 YRCA Connector
6 C B /P B RCA Connector Connect to the component video acceptor
7
VIDEO OUTPUTS
C R /P R RCA Connector
8 ON LED Illuminates when receiving power
9 LINK LED Illuminates when receiving the correct input signal
10 S/PDIF RCA
Connector
Connect to the digital audio source
11
AUDIO
OUTPUTS
ANALOG 3.5mm Mini
Jack Connector
Connect to the analog audio source
Figure 4: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Rear Panel
Table 4: WP-28 Component/CV/YC – S/PDIF/Analog Receiver Rear Panel Features
1 Insert a screwdriver into the small hole and carefully rotate it, trimming the level
# Feature Function
1 CAT5 IN RJ-45 Connector Connects to the CAT5 OUT connector on the WP-27
2 EQ. Trimmer Adjust
1
the cable compensation equalization output signal level
3 LEVEL Trimmer Adjust
1
the output signal level
GND PIN Connects (-) to the Ground4 12V DC
FEED +PIN Connects (+) to the connector for powering the unit