Gefen EXT-DVI-841DL User manual

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

ASKING FOR ASSISTANCE
Rev X1
Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday thru 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.
8x1 DVI DL/SL is a trademark of Gefen Inc.
© 2008 Gefen Inc., All Rights Reserved
All trademarks are the property of their respective companies

CONTENTS
Introduction1
Operation Notes2
Features / Package Includes3
Panel Descriptions4
Panel Descriptions, Continued5
Connecting and Operating the 8x1 DVI DL/SL Switcher6
RMT-8IR Remote Description7
RMT-8IR Remote Installation8
IR Remote Control and 8x1 Switcher Configuration9
RS-232 Serial Communication Interface10
Rack Mount Installation11
Specifications12
Warranty13

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 single-link/dual-link DVI 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, 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.

3
FEATURES
Features
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•
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
3 5
67 8
9
4421

5
PANEL DESCRIPTIONS
External IR Port1 For connection of external IR extension device such as the Gefen IR Extender
(part # EXT-RMT-EXTIR).
IR Receiver2 Receives IR signal from the handheld Infrared remote control unit included with
the product.
DVI Signal Status LEDs 1-83 Provide visual confirmation of the currently selected DVI input signal out of the
eight DVI input ports.
DVI Input Selector4 Push-button switch cycles the next DVI input 1-8 in a forward sequence starting
again at 1.
Power Indicator LED5 Indicates when the 8x1 DVI DL/SL Switcher is receiving 5V DC power from its
includedAC power supply.
5V Locking Power Receptacle6 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.
DVI Input Ports 1-87 DVI video sources one through eight attach to the 8x1 DVI DL/SL Switcher.
DVI Output Port8 This DVI output port is connected to the display device (Monitor, Projector).
RS-232 Serial Communications Interface9 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:
Connect the supplied DVI cables from the DVI sources into the 8x1 DVI1. Switcher’s Inputs.
Connect the cable from your display (monitor or projector) into the DVI Out2. of the 8x1 DVI DL/SL Switcher.
Connect the included 5V power supply, then plug it into the wall.3.
How to Operate the 8x1 DVI DL/SL Switcher:
Turn on the DVI display or projector first, then the video sources.1.
Turn on the 8x1 DVI DL/SL Switcher by screwing its 5V DC power supply tip2. into the receptacle in the rear of the chassis.
Use the RMT-8IR remote control to remotely switch between DVI video3. sources.
Alternatively, use a RS-232 control system.4.

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

8
8X1 DVI DL/SL REMOTE INSTALLATION
To use the RMT-8IR remote, remove the battery cover on the back of the remote to
reveal the battery compartment. Insert the included battery into the open battery slot.
The positive (+) side should be facing up. Ensure that both DIP (Dual Inline Package)
switches are in the OFF position. Replace the battery cover. The remote ships with 2
batteries. One battery is needed for operation and the other battery is complimentary.
IR Code Dip Switches
Empty Battery Slot

9
RMT-8IR REMOTE AND 8X1 SWITCHER CONFIGURATION
How to Resolve IR Code Conflicts
In the event that IR commands from other remote controls conflict with the
supplied RMT-8IR remote control, changing the remote channel will alleviate this
issue. The RMT-8IR remote control and the 8x1 DVI DL/SL Switcher both have
banks of DIP (Dual Inline Package) Switches for configuring the remote channel
that both units use to communicate. These settings must exactly match each
other for proper operation.
The DIP Switch bank on the RMT-8IR is located underneath the battery cover.
DIP Switch banks for the 8x1 DVI DL/SL Switcher are located on the underside of
the unit beneath a black piece of metallic tape. One DIP switch bank (4-switch)
is for the adjustment of remote control frequencies and switch behavior. The
other DIP switch (8-switch) is reserved for Gefen use only. DIP Switches 1 and
2 on the RMT-8IR directly correspond to DIP Switches 1 and 2 on the 8x1 DVI
DL/SL Switcher. Only switches 1 and 2 (of 4 in that bank) are used for IR Code
settings.
Remote Channel 1:
Default
1 2
Remote Channel 2:
1 2
Remote Channel 3:
1 2
Remote Channel 4:
1 2
Left: Picture of the opened rear battery
compartment of the RMT8-IR remote showing
the exposed DIP Switch bank between the
battery chambers.
8x1 DVI DL/SL Switcher
Remote Channel 1:
Default
Remote Channel 4:
1
1
2
2
3
3
4
4
Remote Channel 3:
1234
Remote Channel 2:
1234

10
RS-232 SERIAL CONTROL INTERFACE
RS232 Settings
Bits per second ................................................................................................. 19200
Data bits .................................................................................................................... 8
Parity .................................................................................................................. None
Stop bits .....................................................................................................................1
Flow Control ....................................................................................................... None
12345
6789
12345
6789
Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface
Binary Table
ASCII Corresponding
RMT8-IR
Button
Binary
1 1 0011 0001
2 2 0011 0010
3 3 0011 0011
4 4 0011 0100
5 5 0011 0101
6 6 0011 0110
7 7 0011 0111
8 8 0011 1000

11
RACK MOUNT INSTALLATION
Rear of unit
Front of unit
Rack mount ears are provided for installation of this unit into a 1U rack mount
space.
Locate the side screws on the unit.1. Remove the front 2 screws that are located closest to the front of the unit.2. Using the removed screws, screw the rack mounting bracket into the unit.3. Repeat the procedure on the opposite side of the unit.4.
1
2
3
4

12
SPECIFICATIONS
Video Amplifier Bandwidth:..................................................................165 MHz x 2
Input Video Signal:...............................................................................1.2 Volts p-p
Input DDC Signal:..........................................................................5 Volts p-p (TTL)
Single Link Range:...............................................................................1920 x 1200
Dual Link Range :................................................................................ 3840 x 2400
DVI Connector:.................................................... DVI-I 29-pin female (digital only)
Power Supply:...............................................................................................5V DC
Power Consumption:........................................................................20 Watts (max)
Dimensions:...................................................................17” W x 1.75” H x 4.375” D
Rackmountable:..............................................................................1U Rack Space
Shipping Weight:...........................................................................................12 lbs.