
ASKING FOR ASSISTANCE
Technical Support:
Telephone (818) 772-9100
(800) 545-6900
Fax (818) 772-9120
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday.
Write To:
Gefen Inc.
C/O Customer Service
20600 Nordhoff St.
Chatsworth, CA 91311
Notice
Gefen Inc. reserves the right to make changes in the hard ware, packaging and any
accompanying doc u men ta tion without prior written notice.
The 4x4 HDTV Matrix is a trademark of Gefen Inc.
© 2007 Gefen Inc., All Rights Reserved

TABLE OF CONTENTS
1
Introduction / Operation Notes
2
Features
3
Panel Layout
4
Using the 4x4 HDTV Matrix
5
RMT16-IR Installation
6
Dip Switch Guidelines
7
IR Codes
8
RS-232 Interface
9
4x4 HDTV Matrix Rack Mount Diagram
10
Specifi cations
11
Terminology
12
Warranty

INTRODUCTION
Thank you for purchasing the 4x4 HDTV Matrix.
The 4x4 HDTV Matrix switches four HDTV sources to any four DVI displays.
The 4x4 HDTV Matrix switcher has four DVI inputs and four DVI outputs. Matrix input #1
and the DVI port of HDTV source #1 connects using a male to male DVI cable. The DVI
port of HDTV source #2 connects to DVI input #2. The DVI port of HDTV source #3
connects to DVI input #3. The DVI port of HDTV source #4 connects to DVI input #4. There
are four (4) DVI outputs connecting to four (4) different displays.
Note: The switching is done by using either the the RMT-16-IR remote control or through
the RS232 port. The 4x4 HDTV Matrix is rack mountable.
OPERATION NOTES
READ THESE NOTES BEFORE IN STALL ING
OR OPERATING THE 4X4 HDTV MATRIX
• The 4x4 HDTV Matrix is housed in a metal box for better RF shielding.
• The 4x4 HDTV Matrix works with all DVI and HDMI displays.
• The 4x4 HDTV Matrix supports both AUDIO and VIDEO signals.
• The 4x4 HDTV Matrix is fully HDCP compliant.
1

FEATURES
Features
• Allows any HDTV display to view any source at any time
• Allows any source to be displayed on multiple displays at the same time
• Maintains resolutions up to 1080p, 2K, and 1920x1200
• Maintains highest HDTV single link video resolution
• Maintains highest HDTV digital audio signal
• Supports HDCP compliant devices
• DVI or HDMI to DVI cables are used to connect the inputs and outputs of the matrix
• Each display's inputs can be switched with the IR remote control or through RS232
Includes:
(1) 4x4 HDTV Matrix
(4) DVI 6ft Male to Male Cables
(1) 24VDC Power Supply
(1) User Manual
(1) RMT-16IR Remote Control
(1) Rack Ears
2