
Kramer Electronics, Ltd.
USER MANUAL
Models:
671T
, DVI Optical Transmitter
671R
, DVI Optical Receiver

Contents
1
Introduction 1
2
Getting Started 1
2.1
Quick Start 2
3
Overview 3
3.1
Recommendations for Achieving the Best Performance 3
4
Your DVI Optical Transmitter and Receiver 4
4.1
Your 671T DVI Optical Transmitter 4
4.2
Your 671R DVI Optical Receiver 5
5
Connecting the 671T and 671R Transmitter/Receiver System 5
6
Technical Specifications 7
Figures
Figure 1: 671T DVI Optical Transmitter 4
Figure 2: 671R DVI Optical Receiver 5
Figure 3: Connecting the 671T/671R Transmitter/Receiver System 6
Tables
Table 1: 671T DVI Optical Transmitter Features 4
Table 2: 671R DVI Optical Receiver Features 5
Table 3: Technical Specifications of the 671T and the 671R 7

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 that are clearly defined by function.
Congratulations on purchasing your Kramer DigiTOOLS® 671T DVI Optical
Transmitter and/or 671R DVI Optical Receiver which are ideal for:
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
Transmission of DVI over multimode (OM3) fiber cable with SC
connectors2
The package includes the following:
671T and/or 671R
Power adapters (5V DC Input)
This user manual3
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 cables4
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 Not supplied with the machine
3 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.