Manual
671T, 671R - Introduction 
1 
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 671T, 671R DVI Optical 
Transmitter/Receiver, which is ideal for the following typical applications: 
  Home theater, presentation and multimedia applications 
  Long range multimedia distribution for cinemas, stores, and entertainment 
centers 
  Video production and broadcast facilities 
  Retail stores and other point-of-sale systems 










