K R A ME R E LE CT R O N IC S L T D .
Contents 1 Introduction 1 2 2.1 Getting Started Achieving the Best Performance 2 2 3 3.1 3.2 3.3 Overview About the Power Connect™ Feature Shielded Twisted Pair (STP)/Unshielded Twisted Pair (UTP) Defining EDID 3 3 4 4 4 Defining the WP-121 5 5 5.1 5.2 5.3 5.1 5.
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.
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 i ! 2.1 Go to http://www.kramerelectronics.com to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).
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 twisted pair (TP) signal and transmits the TP signal to a compatible TP receiver. For example, the Kramer TP-122/N or TP-122-od. The WP-121 XGA/Unbalanced Stereo Audio Line Transmitter features: • • HDTV compatibility up to 1080p The option to use either a 9-pin terminal block or RJ-45 output TP connector Only one can be connected at a time to a TP receiver.
3.2 Shielded Twisted Pair (STP)/Unshielded Twisted Pair (UTP) We recommend that you use Shielded Twisted Pair (STP) cable, and stress that the compliance to electromagnetic interference was tested using 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.
4 Defining the WP-121 Figure 1 defines the WP-121. Figure 1: WP-121 US Version (69mm) # Feature Function 1 AUDIO IN 3.
Figure 2 and Figure 3 define the WP-121 front and rear panels, respectively, for the European 80mm and 86mm versions. Figure 2: WP-121 Front Panel (80/86mm) Figure 3: WP-121 Rear Panel (80/86mm) # Feature Function 1 AUDIO IN 3.
5 Installing and Connecting the WP-121 This section explains how to install and connect the WP-121. 5.1 Installing the WP-121 To install the WP-121 as illustrated in the example in Figure 4: 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.
Figure 4: Installing and Connecting the WP-121 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. The grounding screw is used to earth the unit to the ground of the building. This helps prevent static electricity from interfering with product performance. To connect the grounding to the WP-121 as shown in Figure 5: 1. Crimp the ring-tongue terminal to the building grounding point wire.
5.1 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. i Note, that the cable Ground shielding must be connected / soldered to the connector shield.
5.2 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 7 defines the pinouts for the terminal block. Figure 7: Terminal Block Pinouts Notes: • Use the connector clips only when removing wires, not when inserting them • Each wire should protrude 9mm (0.
6 Capturing the EDID The EDID can either be captured automatically by the WP-121 transmitter, or you can set it manually with one of the preconfigured values (see Section 7).
7 Capturing the EDID from a Display Device To capture the EDID from a display device: 1. Using a Philips screwdriver, remove the four screws holding the faceplate to the PCB assembly. 2. Using a short cable (for example, Kramer model number C-MGM/MGM-1), connect the PC IN input 15-pin HD connector on the WP-121 to the XGA connector of the display and turn the display on. 3. Ensure that the rotary switch (see Figure 8) is in position 0. If it is not, use a small screwdriver to turn it to 0. 4.
4. Press the EDID CAPTURE button (see Figure 8). The EDID status LED flashes rapidly several times. The new EDID is captured when the LED stops flashing and lights solid. 5. Unplug the power adapter from the mains and disconnect it from the WP-121. 6. Replace the faceplate and secure the four screws removed in Step 1.
8 Technical Specifications INPUTS: 1 UXGA on a 15-pin HD (F) connector 1 Unbalanced stereo audio on a 3.5mm mini jack 1 Power 12V DC on 2-pin removable terminal block OUTPUTS: 1 STP on a 9-pin terminal block with springs 1 STP on an RJ-45 connector MAX. OUTPUT LEVEL: Video: 2Vpp RESOLUTION: Up to UXGA, 1080p AUDIO BANDWIDTH: 18KHz DIFF. GAIN: 1.8% DIFF. PHASE: 0.3 Deg Audio: 2.8Vpp K-FACTOR: <0.
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: info@kramerel.
