
KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
622T
Dual Link DVI Optical
Transmitter
622R
Dual Link DVI Optical
Receiver
P/N: 2900-000104 Rev 4

Contents
1 Introduction 1
2 Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3
3 Overview 4
3.1 About the Power Connect™ Feature 5
4 Defining the 622T, 622R Dual Link DVI Optical Transmitter/Receiver 6
4.1 Defining the 622T Dual Link DVI Optical Transmitter 6
4.2 Defining the 622R Dual Link DVI Optical Receiver 7
5 Connecting and Operating the 622T, 622R 8
5.1 Connecting the 622T/622R Dual Link DVI Optical Transmitter/Receiver 8
5.2 Operating the 622T/622R Dual Link DVI Optical Transmitter/Receiver 10
5.3 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors 10
6 Technical Specifications 12
Figures
Figure 1: 622T Dual Link DVI Optical Transmitter 6
Figure 2: 622R Dual Link DVI Optical Receiver 7
Figure 3: 622T and 622R Dual Link DVI Optical Transmitter and Receiver System 8
Figure 4: Connecting the 622T, 622R Dual Link DVI Optical Transmitter/Receiver 9
Figure 5: TP PINOUT 10
622T, 622R – Contents i

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 622T, 622R Dual Link DVI Optical
Transmitter/Receiver, which is ideal for the following typical applications:
• Digital display systems
• Flat panel displays, plasma display panels and projectors in conference
rooms and auditoriums
• Kiosks with digital flat panel displays for information display
622T, 622R - Introduction 1

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 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 622T, 622R 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.
2 622T, 622R - Getting Started