
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 thru Friday PST (Pacifi c Standard Time)
Write To:
Gefen Inc.
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefen.com
support@gefen.com
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.
4x1 DVI KVM Switcher is a trademark of Gefen Inc.
© 2009 Gefen Inc., All Rights Reserved
All trademarks are the property of their respective companies
Rev X3

CONTENTS
1 Introduction
2 Operation Notes
3 Features
4 Panel Layout
5 Panel Descriptions
6 Connecting & Operating The 4x1 DVI KVM Switcher
7 Operation Notes & Troubleshooting
8 RMT-4IR Remote Control Description
9 4x1 DVI KVM Switcher Remote Installation
10 RMT-4IR Remote And 4x1 KVM Switcher Confi guration
11 Rack Mount Installation
12 Specifi cations
13 Warranty

INTRODUCTION
Congratulations on your purchase of the 4x1 DVI KVM Switcher. Your complete
satisfaction is very important to us.
Gefen
Gefen delivers innovative, progressive computer and electronics add-on solutions
that harness integration, extension, distribution and conversion technologies.
Gefen’s reliable, plug-and-play products supplement cross-platform computer
systems, professional audio/video environments and HDTV systems of all sizes
with hard-working solutions that are easy to implement and simple to operate.
The Gefen 4x1 DVI KVM Switcher
The rack-mountable Gefen 4x1 single link DVI KVM Switcher offers an
economical solution by eliminating the need to purchase many displays for each
computer in a studio or lab situation. A plug-and-play solution that supports both
Macintosh and IBM-PC computers, the 4x1 DVI KVM Switcher shares one DVI
display with up to four computers or other DVI video sources. A single USB 2.0
port, keyboard & mouse ports, and an analog audio jack are also switched. The
switcher saves space on your desktop by eliminating a crowded workspace full
of DVI monitors, keyboards & mice, and USB and audio cables. Switching of DVI
sources is easy and reliable.
How It Works
The DVI monitor is connected to the 4x1 DVI KVM Switcher’s output. Up to four
DVI video sources connect to the switcher’s DVI inputs using included high
quality DVI cables. The included power supply is connected to the switcher via
the locking power plug and then to a power outlet. The currently selected DVI
video signal appears on the shared monitor. DVI Video sources (and optionally
keyboards & mice, USB and audio cables) are selected/switched using the RMT4IR remote control, RS-232 control, or the input selector push button on the front
panel of the switcher.
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OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFEN 4X1 DVI KVM SWITCHER
• The 4x1 DVI KVM Switcher will take any of up to four (4) DVI single-link
resolution inputs and switch them, one at a time, to a DVI output device
such as a display/monitor or projector. Supported resolutions can be up to
1920x1200.
• The 4x1 DVI KVM Switcher is housed in a metal box for better RF shielding.
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FEATURES
Features
• Switches easily between any four DVI sources.
• Switches USB 2.0, keyboard & mouse, and analog audio
• Maintains highest resolution single link DVI
• Supports resolutions up through 1920x1200
• Discrete IR remote control included
• Serial RS-232 remote port for switching via automated control or PC
• Supports DDWG standards for DVI monitors
• Rack ears included
Package Includes
(1) 4x1 DVI KVM Switcher
(1) RMT-4IR Remote Control
(1) 5V DC Power Supply
(4) 6-foot Dual Link DVI cables
(4) 6-foot USB cables
(4) 6-foot 3.5mm jack analog audio cables
(1) Set of rack ears
(1) User’s Manual
3