Gefen DVIKVM-441 User manual

4x1 DVIKVM
Switcher
USER MANUAL
www.gefen.com

Technical Support:
Telephone [phone]
[phone]
Fax [phone]
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
www.gefen.com
[email protected]
Notice
Gefen Inc. reserves the right to make changes in the hardware, packaging and any
accompanying documentation without prior written notice.
The 4x1 DVIKVM Switcher is a trademark of Gefen Inc.
Macintosh is a trademark of Apple Computer Inc.
© 2007 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE

TABLE OF CONTENTS
Introduction
Front Panel Descriptions
Back Panel Descriptions
How To Connect The 4x1 DVIKVM Switcher
RMT-4IR
IR Code Conflicts
IR Codes
Operation Notes & Troubleshooting
Wiring Diagram
Specifications
Warranty
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INTRODUCTION
Thank you for purchasing Gefen’ s 4x1 DVIKVM Switcher series. The 4x1 DVIKVM
Switcher switches DVI, USB and audio between any combination of four computers. Now
you can switch easily and reliably between any combination of four computers using one
DVI display and USB keyboard and mouse. The 4x1 DVIKVM Switcher is switched using
the RMT-4IR.
The 4x1 DVIKVM Switcher saves space – there’s no need to work on a desk crowded with
fourmonitors,keyboardsand mousedevices. Itsaves time– there’snoneed tomove from
onemonitor toanotherto accessdifferentcomputers.Andit savesmoney– there’s noneed
topurchase additionalmonitors,mouse devices,keyboardsetc.The 4x1DVIKVMSwitcher
allows you to choose between any combination of Macintosh or PC computers.
CONTENTS
The 4x1 DVIKVM Switcher system consists of:
(1) 4x1 DVIKVM Switcher
(1) RMT4-IR remote control
(1) 5 VDC power supply
(4) DVI cables (6FT)
(4) USB cables (6FT)
(4) Audio cables (6FT)
(1) User Manual
Note
• The 4x1 DVIKVM Switcher is housed in a metal box for better RF shielding.
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1-4 Indicator LED
Power LED
Infrared Eye
FRONT PANEL DESCRIPTIONS
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1-4 Selector Buttons

BACK PANEL DESCRIPTIONS
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POWER
INPUT DVI IN 1 DVI IN 2 DVI IN 3 DVI IN 4 USB OUT
USB INPUTS 1-4
Contact Closure
RJ-45 Connector
For RMT-4 Wired
Remote
AUDIO INPUTS 1 - 4 AUDIO OUT
DVI OUT
External IR
Remote Extender
Input For
EXT-RMT-EXTIR

HOW TO CONNECT THE 4x1 DVIKVM SWITCHER
Connect your computers DVI, USB, and audio to the 4x1 DVIKVM Switcher inputs
using the supplied cables.
Connect your DVI display to the DVI output of the 4x1 DVIKVM Switcher.
Connect your USB and audio devices to the USB and audio outputs.
Connect the RMT-4 remote control (if applicable).
Connect the External IR Extender to the RJ-45 port (if applicable).
Plug the 5VDC power supply into the 4x1 DVIKVM Switcher.
Your computers must be turned on one at a time and the switcher must be selected
to the computer that is booting up.After one computer completes the startup process,
you can boot up the second computer and repeat the process with the remaining
computers.
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4

RMT-4IR
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1. Remove battery cover from the back of the RMT4-IR remote.
2. Verify that dip switches 1 & 2 are in the down (OFF) position.
3. Insert the battery, hold the battery so that you can see the positive side facing up. The
side that is not marked must be facing down.
4. Test the RMT4-IR remote by pressing ONLY one button at a time. The indicator light
on the remote will flash once each time you press a button. WARNING: Do not press
multiple buttons simultaneously and do NOT press buttons rapidly. These actions will
cause the remote to reset and steps 1-4 will have to be repeated.
Note: The RMT4-IR ships with two batteries. One battery is required for operation, the
second battery is complimentary.
How to Operate the IR Extender Eye (optional)
Plug in the IR extender eye to the extender port on the back of the switcher. As soon as
the IR extender eye is plugged in you can extend your IR signal. The IR extender eye
does not come included in the package.

IR CODE CONFLICTS
How to Resolve IR Code Conflicts
There are matching pairs of dip switches underneath the Switcher unit and under the
remote battery cover. Switch 1 & 2 on the Remote and Switch 3 & 4 underneath the unit
are the matching switches. These switches need to be matched for the remote to
communicate with the switcher. There are 4 possible sets of IR codes and at least one of
these sets should be able to resolve any IR conflicts with other home theater devices.
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IR CODES
In the event of IR conflicts, please do the following:
1. Remove the battery cover from the back of the RMT4-IR remote.
2. Locate the Dip Switches above the batteries.
3. Switch the Dip Switches on the RMT4-IR to any of the combinations pictured below.
4. Dip Switches 1 and 2 in the RMT4-IR correspond with Dip Switches 3 and 4 on the
bottom of the 4x1 DVI Switch respectively. Switch the switches on the bottom of the
4x1 DVI Switch to match the dip switches on the RMT4-IR. The 4x1 DVI Switcher is
now set to a new IR Code.
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Remote Channel 0:
12
Remote Channel 1:
12
Remote Channel 2:
12
Remote Channel 3:

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USB
If your USB stops functioning correctly, you can manually re-intialize the USB hub in
the switch by pushing twice on the channel select button, that corresponds with the
channel that the switcher is pointed at, on the front of the unit. This will cause the
channel selected LED to blink once letting you know the USB hub has been
re-initialized.
To have the USB re-initialize automatically every time you switch, look under the 4x1
DVI Switcher and locate the blank sticker. Peel it off to reveal a bank of four dip switch-
es. Find the dip switch labeled “4” and flip it to the ON position. Now every time you
switch the hub will re-initialize itself.
Video
When turning on or rebooting your computers, the 4x1 DVI DL Switcher must be se-
lected to the computer that is booting until the computer completes the boot cycle. This
step can be eliminated using the Gefen DVI Detective.
If you loose your picture when you switch between sources you will need a DVI
Detective.
To switch between Dual Link and Single Link sources, a Single Link cable (sold
separately) must be used for each Single Link source connected to the switcher.
OPERATION NOTES & TROUBLESHOOTING

4X1 DVI WIRING DIAGRAM
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Video Amplifier Bandwidth ................................................................................. 1.65 GHz
Single Link Range ......................................................................................... 1920 x 1200
Vertical Frequency Range ....................................................................................... 60 Hz
DVI Input/Output Connector Type ........................................................ DVI-I (digital only)
USB Input Connector .......................................................................................... Type “B”
USB Output Connector ........................................................................................ Type “A”
Power Consumption ................................................................................ 15 Watts (max.)
Power Supply .......................................................................................................... 5VDC
Dimensions ...................................................................................... 17”W x 1.75”H x 4”D
Rackmountable .......................................................................................... 1 Rack Space
Shipping Weight ..................................................................................................... 10 Lbs
SPECIFICATIONS
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