K R A ME R E LE CT R O N IC S L TD .
Contents 1 Introduction 1 2 2.1 2.2 2.3 3 3.1 3.2 Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Overview About the Power Connect™ Feature Using Twisted Pair Cable 2 2 3 3 4 5 5 4 4.1 4.2 Defining the 621T, 621R DVI Optical Transmitter/Receiver Defining the 621T DVI Optical Transmitter Defining the 621R DVI Optical Receiver 6 6 7 5 5.1 5.2 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 i 2.1 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).
2.2 Safety Instructions ! 2.
3 Overview The high-performance Kramer 621T and 621R are an optical transmitter and receiver pair for DVI signals for computer graphics signals. They support resolutions of up to 1920x1200 at 60Hz and HDTV resolutions of up to 1080p at 60Hz. The 621T converts a DVI signal into an optical signal and the 621R converts the optical signal back to DVI.
3.1 About the Power Connect™ Feature The Power Connect™ feature here means that only one unit in a system, the transmitter or receiver, needs to be connected to a power source when the devices are within 90m (270ft) of each other. The Power Connect™ feature applies as long as the cable can carry power and the distance does not exceed 90m on standard TP cable.
4 Defining the 621T, 621R DVI Optical Transmitter/Receiver This section defines the DVI Optical Transmitter/Receiver: 4.1 621T DVI Optical Transmitter (see Section 4.1) 621R DVI Optical Receiver (see Section 4.
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5 Connecting and Operating the 621T, 621R i Always switch off the power to each device before connecting it to your 621T, 621R. After connecting your 621T, 621R, connect its power and then switch on the power to each device. We recommend testing your system configuration by first connecting the entire system (as illustrated in Figure 3), using short copper cables instead of optical fiber cables.
4. Carefully recheck the polarities and ensure that the duplex connectors are fully engaged. ! Do not look directly into the LC receptacles of the 621T, while powered on, although this product is regulated strictly enough to operate under the Laser Class 1, classified by CDRH/FDA for eye safety. 5. Connect the DDC RJ-45C connector on the 621T to the DDC RJ-45C connector on the 621R, via UTP cabling (see Section 5.3). 6. Connect the 12V 2.
5.2 Operating the 621T/621R DVI Optical Transmitter/Receiver To properly operate the 621T/621R system: Make sure you have a media receiver or a graphic controller card with a DVI connector on your PC/Mac or SUN system. Make sure that your graphic card supports the maximum resolution of the display you are about to connect Avoid “hot plugging” the 621T or 621R. This is not a recommended practice with live digital voltages 5.
The RJ-45 pin assignments are as follows: PIN 1 Symbol DDC Data GND Description DDC Data line return ground 2 DDC Data DDC Data line for (HDMI Digital Display Channel) DDC2B communication 3 DDC Clock GND DDC Clock line return ground 4 Power GND Main power return ground 5 Power Main power for Kramer module 6 DDC Clock DDC Clock line for (HDMI Digital Display Channel) DDC2B communication 7 5V_IN DVI 5V (DVI No.
6 Technical Specifications 621T 621R INPUTS: DVI IN (DVI-D on a DVI-I connector) 4 LC optical connectors for R, G, B & clock. 1 CAT 5 (RJ-45) for DDC and HDCP bi-directional data OUTPUTS: 4 LC optical connectors for R, G, B & Clock. 1 CAT 5 (RJ-45) for DDC and HDCP bidirectional data DVI OUT (DVI-D on a DVI-I connector) MAX. DATA RATE 4.95Gbps (1.
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.com ! SAFETY WARNING Disconnect the unit from the power supply before opening and servicing Laser Compliance LASER PRODUCT P/N: 2900- 000103 Laser Class 1 acc.
