Gefen EXT-DVI-841DL User manual

www.gefen.com
®
8x1 DVI DL/SL Switcher
EXT-DVI-841DL
User Manual

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Technical Support Hours:
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Write To:
Gefen LLC
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefen.com
[email protected]
Notice
Gefen LLC reserves the right to make changes in the hardware, packaging and
any accompanying documentation without prior written notice.
8x1 DVI DL/SL is a trademark of Gefen LLC
© 2010 Gefen LLC, All Rights Reserved
All trademarks are the property of their respective owners
Rev A9

CONTENTS
1 Introduction
2 Operation Notes
3 Features / Package Includes
4 Panel Layout
5 Panel Descriptions
6 Connecting and Operating the 8x1 DVI DL/SL Switcher
7 RMT-8IR Remote Description
8 RMT-8IR Remote Installation
9 IR Remote Control and 8x1 Switcher Configuration
10 EDID Notes
11 EDID Notes, Continued
12 Dual-Link-Only Modes
13 RS-232 Serial Control Interface
14 RS-232 Serial Control Commands
22 Rack Mount Installation
23 Specifications
24 Warranty

1
INTRODUCTION
Congratulations on your purchase of the 8x1 DVI DL/SL 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 8x1 DVI DL/SL Switcher
The rack-mountable Gefen 8x1 DVI dual-link/single-link Switcher offers an
economical solution by eliminating the need to purchase many displays for each
DVI source in a studio or lab situation. A plug-and-play solution, the 8x1 DVI DL/
SL Switcher shares one dual-link display with up to eight computers or other DVI
video sources, saving space on your desktop. The source computer is selected
using the included IR remote control or through RS-232 control.
How It Works
The DVI monitor is connected to the switcher’s output. Up to eight DVI 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 computer’s video signal
appears on the shared monitor. Video sources are selected/switched using the
RMT-8IR remote control, RS-232 control, or the input selector push button on the
front panel of the switcher.

OPERATION NOTES
2
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFEN 8X1 DVI DL/SL SWITCHER
• The 8x1 DVI DL/SL Switcher will take any of up to eight (8) DVI dual-link or
single-link resolution inputs and switch them, one at a time, to a DVI output
device such as a display/monitor or projector. Resolutions can be up to
3840x2400.
• The 8x1 DVI DL/SL Switcher is housed in a metal box for better RF
shielding.

3
FEATURES
Features
• EDID Management
• Switches easily between any eight DVI-SL or DVI-DL sources
• Maintains highest resolution dual link DVI
• Supports resolutions up through 3840x2400
• Extends the range of DVI video up to 50 feet
• Discrete IR remote control included
• Serial RS-232 remote port for switching via automated control or PC
• HDCP Compliant (when using EDID DS Mode)
• Supports DDWG standards for DVI monitors
• Rack ears included
Package Includes
(1) 8x1 DVI DL/SL Switcher
(1) RMT-8IR Remote Control
(1) 5V DC Power Supply
(8) 6-foot Dual Link DVI cables
(1) Set of rack ears
(1) User’s Manual

4
PANEL LAYOUT
Back Panel
Front Panel
5
689
4
2
13
7

5
PANEL DESCRIPTIONS
1 External IR Port
For connection of external IR extension device such as the Gefen IR Extender
(part # EXT-RMT-EXTIR).
2 IR Receiver
Receives IR signal from the handheld Infrared remote control unit included with
the product.
3 DVI Signal Status LEDs 1-8
Provide visual confirmation of the currently selected DVI input signal out of the
eight DVI input ports.
4 DVI Input Selector
Push-button switch cycles the next DVI input 1-8 in a forward sequence starting
again at 1.
5 Power Indicator LED
Indicates when the 8x1 DVI DL/SL Switcher is receiving 5V DC power from its
included AC power supply.
6 5V Locking Power Receptacle
Supplies power to the 8x1 DVI DL/SL Switcher from the included external 5V
DC power supply. The 5V power supply has a locking power tip which screws
into this receptacle.
7 DVI Input Ports 1-8
DVI video sources one through eight attach to the 8x1 DVI DL/SL Switcher.
8 DVI Output Port
This DVI output port is connected to the display device (Monitor, Projector).
9 RS-232 Serial Communications Interface
Provided for external control of the 8x1 DVI DL/SL Switcher.

6
CONNECTING AND OPERATING THE 8X1 DVI DL/SL
How to Connect the 8x1 DVI DL/SL Switcher to your devices:
1. Connect the supplied DVI cables from the DVI sources into the 8x1 DVI
Switcher’s Inputs.
2. Connect the cable from your display (monitor or projector) into the DVI Out
of the 8x1 DVI DL/SL Switcher and turn on the display.
3. Turn on the DVI display or projector.
4. Connect the included 5V DC power supply to the Switcher by screwing its
locking power tip into the receptacle in the rear of the unit. Plug the power
cord into a free wall socket.
5. Turn on the computers.
Note: For the first-time power-up sequence, please make sure that the display
device is turned on and connected to the 8x1 DVI DL/SL Switcher before
applying power to the Switcher. The reason for this procedure is that EDID
information will only be copied from the display device to DVI sources upon
power-up. If power is applied to the Switcher before the display device is
connected and powered up, the Switcher’s last recorded EDID from previous
activity will be used.
How to Operate the 8x1 DVI DL/SL Switcher:
6. Use the RMT-8IR remote control to remotely switch between DVI video
sources.
7. Alternatively, use a RS-232 control system such as a PC with
communications software (for example, Microsoft’s Hyperterminaltm) or an
automated control system such as Crestron.tm

7
8X1 DVI DL/SL REMOTE DESCRIPTION
LED Indicator
Input Selection
Buttons
The RMT-8IR remote control will allow the user to select which of 8 DVI sources will
be displayed. Please use the information below when selecting the desired source
for output to a display or other DVI video receiving device.
RMT-8IR Button DVI Source
11
22
33
44
55
66
77
88