Kramer WP-121 Manuale utente

Kramer Electronics, Ltd.

USER MANUAL

Model:

WP-121

XGA/Unbalanced Stereo Audio Line Transmitter

Contents

1Introduction 1

2Getting Started 1

3Overview 2

3.1 About the Kramer Power Connect™ Feature 2

3.2 Shielded Twisted Pair/Unshielded Twisted Pair 2

3.3 Defining the EDID 3

3.4 Recommendations for Achieving the Best Performance 3

4Defining the WP-121 XGA/Unbalanced Stereo Audio Line Transmitter 4

5Installing and Connecting the WP-121 6

5.1 Installing the WP-121 6

5.2 Connecting the WP-121 7

5.3 Grounding the Wall Plate 7

5.4 Wiring the TP Line Output Connectors 8

5.4.1 Wiring the RJ-45 Line Output Connector 8

5.4.2 Wiring the 9-Pin Terminal Block Line Output Connector 8

6Capturing the EDID 9

6.1 Capturing the EDID from a Display Device 9

6.2 Setting a Preconfigured EDID 10

7Technical Specifications 11

Figures

Figure 1: WP-121 Front Panel 4

Figure 2: WP-121 Rear Panel 4

Figure 3: WP-121 80/86mm Front Panel 5

Figure 4: WP-121 80/86mm Rear Panel 5

Figure 5: Installing and Connecting the WP-121 6

Figure 6: WP-121 Grounding Components 7

Figure 7: TP Connector 8

Figure 8: Terminal Block Pinouts 8

Figure 9: WP-121 PCB Assembly Front View with Face Plate Removed 9

Tables

Table 1: WP-121 Front Panel Features 4

Table 2: WP-121 Rear Panel Features 4

Table 3: WP-121 Grounding Screw Descriptions 7

Table 4: TP Connector Pinout 8

Table 5: WP-121 PCB Assembly Features 9

Table 6: Rotary Switch EDID Resolution Settings 10

Table 7: Technical Specifications of the WP-121 11

Introduction

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 groups1

Congratulations on purchasing your Kramer Wall Plate WP-121 XGA/Unbalanced

Stereo Audio Line Transmitter, which is available in American and European

(80mm and 86mm) versions and which is ideal for:

that are clearly defined by function.

•Presentation and multimedia applications

•Long range graphics distribution for schools, hospitals, security and stores

The package includes the following items:

•WP-121 XGA/Unbalanced Stereo Audio Line Transmitter

•A 12V DC power supply

•This user manual2

Note: All references to WP-121 in this manual refer to the US version (69mm) as

well as to the WP-121 80mm and WP-121 86mm European versions.

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 cables3

1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; 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 Products

2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com

3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Overview

3 Overview

The Kramer WP-121 wall plate is a line transmitter that accepts a UXGA video

and an unbalanced stereo audio signal, encodes them to a TP (Twisted Pair) signal

and transmits the TP signal to a compatible TP receiver1

The WP-121 XGA/Unbalanced Stereo Audio Line Transmitter features:

•HDTV compatibility—up to 1080p

•The option to use either2

•Kramer Power Connect™

a 9-pin terminal block or RJ-45 output TP connector

•EDID Capture—copies and stores the EDID from a display device

•12V DC power supply

3.1 About the Kramer Power Connect™ Feature

The Power Connect feature applies as long as the cable can carry power. This

feature is available when using STP cable and the distance does not exceed 50m on

standard CAT 5 cable. For longer distances, heavy gauge cable should be used

(CAT 5 cable is still suitable for the video/audio transmission, but not for feeding

the power at these distances).

For a CAT 5 cable exceeding a distance of 50m, separate power supplies should be

connected to the transmitter and to the receiver simultaneously.

3.2 Shielded Twisted Pair/Unshielded Twisted Pair

We recommend that you use Shielded Twisted Pair (STP) cable. There are

different levels of STP cable available, and we advise you to use the best quality

STP cable that you can afford. Our non-skew-free cable, Kramer BC-STP is

intended for analog signals where skewing is not an issue. For cases where there is

skewing, our UTP skew free cable, Kramer BC-XTP, may be used. Bear in mind

though, that we advise using STP cables where possible, since the compliance to

electromagnetic interference was tested using those cables.

Although Unshielded Twisted Pair (UTP) cable might be preferred for long range

applications, the UTP cable should be installed far away from electric cables,

motors and so on, which are prone to create electrical interference.

However, since the use of UTP cable might cause inconformity to electromagnetic

standards, Kramer does not commit to meeting the standard with UTP cable.

1 For example, the Kramer TP-122 or TP-122-od

2 Only one can be connected at a time to a TP receiver. Connecting both simultaneously results in neither operating

Overview

3.3 Defining the EDID

EDID (Extended Display Identification Data1

The EDID includes information, such as, the name of the manufacturer, product

type, timing data supported by the display, display size, luminance data, and (for

digital displays only) the pixel mapping data.

) is a data-structure that the display

provides to describe its capabilities to a graphics card connected to the display’s

source. The EDID enables the source, such as a PC, to “know” what kind of

monitor is connected to the output.

The WP-121 is supplied with a default EDID, but it can also store and recall EDID

data in non-volatile memory, allowing convenient and reliable connection to the

source.

3.4 Recommendations for Achieving the Best Performance

Achieving the best performance means:

•Utilizing 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 and positioning

your WP-121away from moisture, excessive sunlight, and dust

1 EDID is defined by a standard published by the Video Electronics Standards Association (VESA)

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Defining the WP-121 XGA/Unbalanced Stereo Audio Line Transmitter

4 Defining the WP-121 XGA/Unbalanced Stereo Audio Line

Transmitter

Figure 1and Table 1define the front panel of the WP-121. Figure 2and Table 2

define the rear panel of the WP-121.

Figure 1: WP-121 Front Panel

Figure 2: WP-121 Rear Panel

Table 1: WP-121 Front Panel Features

Table 2: WP-121 Rear Panel Features

# Feature Function

1 AUDIO IN 3.5mm

Mini Jack

Connect to an

unbalanced stereo audio

source

2 PC IN XGA 15-Pin

HD (F) Connector

Connect to the XGA

source

3 ON LED Lights red when

receiving power, lights

green when receiving a

signal from a video

source

# Feature Function

4 +12V

Power —

Removable

Terminal

Block

Connect to the positive (+) of

the power adapter

GND

Connect to the negative (-) of

the power adapter

5 Ground connection. Ring-

tongue terminal and

grounding screw

6 LINE OUTPUTS 9-Pin TP terminal block

7 RJ-45 TP connector

Table 1and Table 2refer also to the WP-121 80mm and WP-121 86mm shown

below.

Defining the WP-121 XGA/Unbalanced Stereo Audio Line Transmitter

Figure 3: WP-121 80/86mm Front Panel

Figure 4: WP-121 80/86mm Rear Panel

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Installing and Connecting the WP-121

5 Installing and Connecting the WP-121

Figure 5illustrates the installation and connection of the WP-121.

Figure 5: Installing and Connecting the WP-121

5.1 Installing the WP-121

To install the WP-121 as illustrated in the example in Figure 5:

1. Connect either the:

Terminal block line output of the WP-121 to the pre-installed STP wiring

in the wall box opening that connects to the TP receiver

—or—

RJ-45 line output of the WP-121 to the pre-installed STP wiring in the

wall box opening that connects to the TP receiver

2. Recommended—ground the wall plate (see Section 5.3).

3. Connect the 12V DC power supply to the power terminal block1

4. Insert the WP-121 into the wall box opening and secure the WP-121 front

panel using the screws.

taking care

that the polarity is correct.

1 Connect the wire labeled “+” to the +12V pin, and the wire labeled “–” to the GND pin

Installing and Connecting the WP-121

5.2 Connecting the WP-121

To connect the WP-121 as illustrated in the example in Figure 5:

Note: Do not connect both the RJ-45 and terminal block connectors to receivers. If

you do so, neither will work.

1. Connect the UXGA source to the PC IN connector (for example, a computer

graphics source).

2. Connect the unbalanced stereo source to the AUDIO IN connector (for

example, the audio signal from the computer graphics source).

5.3 Grounding the Wall Plate

Grounding the WP-121 is recommended.

The grounding wire is connected to the rear of the chassis of the unit.

Table 3: WP-121 Grounding Screw

Descriptions

# Item

1 M3x6 Screw

2 M3 Toothed lock washers

3 M3 Ring tongue terminal

Figure 6: WP-121 Grounding Components

The grounding screw is used to earth the chassis of the unit to the ground of the

building, thus preventing static electricity from interfering with the product’s

performance.

To connect the grounding to the WP-121 as illustrated in Figure 6:

1. Crimp the ring-tongue terminal to the building grounding point wire.

(We recommend that you use a green-yellow #18 AWG wire (0.82mm2)

crimped with a proper hand-tool).

2. Insert the M3x6 screw through the toothed lock washers and the ring-tongue

terminal in the order shown above.

3. Insert the M3x6 screw (with the two toothed lock washers and ring-tongue

terminal in place) into the grounding screw hole on the rear of the WP-121

and tighten the screw.

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Installing and Connecting the WP-121

5.4 Wiring the TP Line Output Connectors

5.4.1 Wiring the RJ-45 Line Output Connector

Table 4and Figure 7define the STP pinout using a straight through cable with

RJ-45 connectors. Connect/solder the cable shield to the connector shield.

Table 4: TP Connector Pinout

781 2 5

145 78632

Figure 7: TP Connector

EIA /TIA 568A EIA /TIA 568B

PIN Wire Color PIN Wire Color

1 Green/White 1 Orange/White

2 Green 2 Orange

3 Orange/White 3 Green/White

4 Blue 4 Blue

5 Blue/White 5 Blue/White

6 Orange 6 Green

7 Brown/White 7 Brown/White

8 Brown 8 Brown

Pair 1 4 and 5 Pair 1 4 and 5

Pair 2 3 and 6 Pair 2 1 and 2

Pair 3 1 and 2 Pair 3 3 and 6

Pair 4 7 and 8 Pair 4 7 and 8

5.4.2 Wiring the 9-Pin Terminal Block Line Output Connector

The 9-pin terminal block is a plug-in connector for attaching the STP cable. Follow

the colors of the color-coded sticker on these terminals for proper connection of the

cable.

Figure 8defines the pinouts for the terminal block.

Figure 8: Terminal Block Pinouts

Notes:

•Use the connector clips only when removing wires, not when inserting them

•Each wire should protrude 9mm (0.35") from the plastic insulation so that it

can be easily connected. To prevent the wires crossing, be sure that each wire

is fully inserted

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