Gefen Switch EXT DVIKVM 841DL User Manual

8x1 DVI KVM DL/SL  
Switcher  
EXT-DVIKVM-841DL  
User Manual  
 
CONTENTS  
1
2
3
4
5
6
7
8
9
Introduction  
Operation Notes  
Features / Package Includes  
Panel Descriptions  
Panel Descriptions, Continued  
Connecting and Operating the 8 x1 DVI-DL KVM Switcher  
RMT-8IR Remote Description  
RMT-8IR Remote Installation  
IR Remote Control and 8x1 Switcher Conguration  
10 RS-232 Serial Communication Interface  
11 Rack Mount Installation  
12 Specications  
13 Warranty  
 
INTRODUCTION  
Congratulations on your purchase of the 8 x1 DVI-DL 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 8x1 DVI KVM DL/SL Switcher  
The rack-mountable Gefen 8x1 dual link/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 8x1 DVI KVM DL/SL Switcher shares one  
DVI display with up to eight 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 8x1 DVI KVM DL/SL Switcher’s output. Up  
to eight 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 RMT-  
8IR remote control, RS-232 control, or the input selector push button on the front  
panel of the switcher.  
1
 
OPERATION NOTES  
READ THESE NOTES BEFORE INSTALLING OR  
OPERATING THE GEFEN 8X1 DVI KVM DL/SL SWITCHER  
The 8x1 DVI KVM 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 KVM DL/SL Switcher is housed in a metal box for better RF  
shielding.  
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. This can be avoided with the use  
of a EDID storage device (DVI DETECTIVE; part# EXT-DVI-EDIDN) that  
will constantly supply each computer with an EDID. In this scenario, each  
computer must have a detective placed between itself and the switcher.  
Then, each computer can boot up in any order and at anytime, regardless of  
which computer the switch is selected to.  
2
 
FEATURES  
Features  
Switches easily between any eight DVI-SL or DVI-DL sources  
Switches USB 2.0, keyboard & mouse, and analog audio  
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 KVM DL/SL Switcher  
(1) RMT-8IR Remote Control  
(1) 5V DC Power Supply  
(8) 6-foot Dual Link DVI cables  
(8) 6-foot USB cables  
(8) 6-foot 3.5mm jack analog audio cables  
(1) Set of rack ears  
(1) User’s Manual  
3
 
PANEL LAYOUT  
Front Panel  
2
1
4
5
3
Back Panel  
10  
11  
12  
9
7
8
6
4
 
PANEL DESCRIPTIONS  
1
2
3
4
5
6
External IR Port  
For connection of external IR extension device such as the Gefen IR Extender  
(part # EXT-RMT-EXTIR).  
IR Receiver  
Receives IR signal from the handheld Infrared remote control unit included with  
the 8x1 DVI KVM DL/SL Switcher.  
DVI Signal Status LEDs 1-8  
Provide visual conrmation of the currently selected DVI input signal being  
output to the DVI display device.  
DVI Input Selector  
Push-button switch cycles the next DVI input 1-8 in a forward sequence starting  
again at 1.  
Power Indicator LED  
Indicates when the 8x1 DVI KVM DL/SL Switcher is receiving 5V DC power  
from its included AC power supply.  
5V Locking Power Receptacle  
Supplies power to the 8x1 DVI KVM 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 KVM DL/SL  
Switcher.  
8
9
DVI Output Port  
This DVI output port is connected to the display device (Monitor, Projector).  
RS-232 Serial Communications Interface  
Provided for external control of the 8x1 DVI KVM DL/SL Switcher.  
10 3.5mm Analog Audio Jacks 1-8  
Audio Sources one through eight connect to the switcher here.  
11 USB Type B Ports 1-8  
USB devices one through eight connect to the switcher here.  
12 USB Type A Control Ports 1-2  
The keyboard & mouse for controlling the selected remote computer or device  
connects to the switcher here.  
5
 
CONNECTING & OPERATING THE 8X1 DVI KVM DL/SL SWITCH  
How to Connect the 8x1 DVI KVM DL/SL Switcher to your devices:  
1. Connect your computers’ DVI, USB, and Audio sources to the 8x1 DVI KVM  
DL/SL Switcher inputs using the supplied cables.  
2. Connect your DVI display to the DVI output of the 8x1 DVI KVM DL/SL  
Switcher using a user-supplied DVI cable.  
3. Connect your USB and audio devices to the USB and audio outputs with user-  
supplied cables.  
4. Connect the included 5V DC power supply to the Switcher by by screwing its  
5V DC power supply tip into the receptacle in the rear of the unit, then plug it  
into the wall.  
5. Turn on the DVI display or projector rst, then the DVI video sources/  
computers.  
Note: Computers must be turned on one at a time and the switcher must  
be selected to the computer that is booting up. This is so that monitor  
information (EDID) can be transmitted from the display to each computer.  
After one computer completes the startup process, you can boot up the  
second computer and repeat the process with the remaining computers. This  
can be avoided with the use of a EDID storage device (DVI DETECTIVE;  
part# EXT-DVI-EDIDN) that will constantly supply each computer with  
an EDID. In this scenario, each computer must have a detective placed  
between itself and the switcher. Then, each computer can boot up in any  
order and at anytime, regardless of which computer the switch is selected to.  
How to Operate the 8x1 DVI KVM DL/SL Switcher:  
1. Use the RMT-8IR remote control to remotely switch between DVI video  
sources.  
2. Alternatively, use a RS-232 control system or the front panel selection  
button.  
6
 
8X1 DVI KVM DL/SL REMOTE DESCRIPTION  
LED Indicator  
Input Selection  
Buttons  
The RMT-8IR remote control will allow the user to choose which of 8 DVI sources  
or computers will be selected. Please use the information below when selecting the  
desired source:  
RMT-8IR Button  
DVI Source  
1
2
3
4
1
2
3
4
5
6
7
8
5
6
7
8
7
 
8X1 DVI KVM DL/SL SWITCHER 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.  
Empty Battery Slot  
IR Code Dip Switches  
8
 
RMT-8IR REMOTE AND 8X1 KVM SWITCHER CONFIGURATION  
How to Resolve IR Code Conicts  
In the event that IR commands from other remote controls conict with the  
supplied RMT-8IR remote control, changing the remote channel will alleviate this  
issue. The RMT-8IR remote control and the 8x1 DVI KVM DL/SL Switcher both  
have banks of DIP (Dual Inline Package) Switches for conguring 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 KVM 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 KVM DL/SL Switcher. Only switches 1 and 2 (of 4 in that bank) are  
used for IR Code settings.  
Remote Channel 1:  
Default  
Remote Channel 2:  
1
2
1
2
2
Remote Channel 3:  
Remote Channel 4:  
1
2
1
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 KVM DL/SL Switcher  
Remote Channel 1:  
Default  
Remote Channel 2:  
1 2 3 4  
1 2 3 4  
1 2 3 4  
1 2 3 4  
Remote Channel 3:  
Remote Channel 4:  
9
 
RS-232 SERIAL CONTROL INTERFACE  
1 2 3 4 5  
1 2 3 4 5  
6 7 8 9  
6 7 8 9  
Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface  
Binary Table  
ASCII Corresponding  
RMT8-IR  
Binary  
Button  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
0011 0001  
0011 0010  
0011 0011  
0011 0100  
0011 0101  
0011 0110  
0011 0111  
0011 1000  
RS232 Settings  
Bits per second ................................................................................................. 19200  
Data bits .................................................................................................................... 8  
Parity .................................................................................................................. None  
Stop bits .....................................................................................................................1  
Flow Control ....................................................................................................... None  
10  
 
RACK MOUNT INSTALLATION  
Rack mount ears are provided for installation of this unit into a 1U rack mount  
space.  
1. Locate the side screws on the unit.  
2. Remove the front 2 screws that are located closest to the front of the unit.  
3. Using the removed screws, screw the rack mounting bracket into the unit.  
4. Repeat the procedure on the opposite side of the unit.  
1
Front of unit  
Rear of unit  
2
3
4
11  
 
SPECIFICATIONS  
Video Amplier 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.  
12  
 

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