Gefen Switch EXT DPKVM 241 User Manual

2x1 DisplayPort  
KVM  
EXT-DPKVM-241  
User Manual  
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CONTENTS  
1
2
3
4
5
6
7
8
9
Introduction  
Operation Notes  
Features  
Panel Layout  
Panel Descriptions  
Connecting And Operating The 2x1 DisplayPort KVM  
Operating The 2x1 DisplayPort KVM  
RMT-2IR Remote Control Description  
RMT-2IR Remote Installation  
10 Infrared (IR) Code Channel Conguration  
11 RS-232 Serial Control Interface  
12 Additional Switching Options  
13 Specications  
14 Warranty  
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INTRODUCTION  
Congratulations on your purchase of the 2x1 DisplayPort KVM. 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 2x1 DisplayPort KVM  
The 2x1 DisplayPort KVM Switcher allows effortless switching of DisplayPort  
between two computers using just one display and one USB2.0 port for a  
keyboard and mouse. Audio, video and control signals are switched for each  
computer upon selection, providing an easy and effective method of accessing  
two computers from one workstation without the hassle of network. Switching can  
also be performed through the front panel Select button, IR remote control or via  
RS232.  
How It Works  
DisplayPort’s plug-and-play construction and compact connector enables faster,  
easier installations with less chance of errors.  
Connect a DisplayPort display and USB 2.0 keyboard/mouse to the Switcher’s  
outputs. Connect both computers’ DisplayPort, USB and audio ports to the  
Switcher’s inputs using the supplied cables. The Switcher is compatible with both  
Macintosh and PC keyboards, mice and displays.  
Note: If the source and/or display is not DisplayPort compliant, a protocol-  
specic protocol adapter will be required in order to connect the source to the  
Switcher and/or the Switcher to the high-resolution display.  
1
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OPERATION NOTES  
READ THESE NOTES BEFORE INSTALLING OR  
OPERATING THE 2X1 DISPLAYPORT KVM  
Display Information (EDID) is normally required by source/host devices to  
determine the capabilities of the attached peripherals. The 2x1 DisplayPort  
KVM features complete EDID passthrough. This means that when EDID  
is present on the output device, it will be passed to the active source/host  
device.  
2
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FEATURES  
Features  
Switches one High-Resolution Display between two DisplayPort-equipped  
computers with audio/video and USB keyboards  
Compact connector for easier installations  
Switches up to 2560x1600 maximum resolution  
Supports RGB and YCbCr color spaces  
Package Includes  
(1) DisplayPort KVM Switcher  
(2) 6-foot DisplayPort cable  
(2) 6-foot USB 2.0 cable  
(2) 6-foot 3.5mm mini-stereo audio cable  
(1) 5V DC Universal Power Supply  
(1) IR Remote Control  
(1) User’s Manual  
3
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PANEL LAYOUT  
Front Panel  
1
2
3
3
4
Back Panel  
5
7
7
9
11  
12  
13  
6
8
9
10  
12  
13  
4
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PANEL DESCRIPTIONS  
1
2
LED Power Status Indicator  
This LED will be active once power is being supplied by the included 5V power  
supply.  
Infrared (IR) Receiver  
This IR receiver will accept switching commands from the included RMT-2IR  
remote control.  
3
4
5
LED Input Status Indicator 1 & 2  
This currently selected source input will be indicated with an active LED.  
Input Selector Button  
Pressing this button will cycle the input, 1 or 2, which will be selected for output.  
RS-232 Communications Input  
Switching commands can be initiated by using a serial communications device  
and this port. For more information please see page 11.  
6
7
5V DC Power Input  
This receptacle will accept power via the included 5V DC power supply.  
DisplayPort Input 1 & 2  
This port will accept a single standard DisplayPort source device. Two ports are  
available for use.  
8
9
DisplayPort Output  
This port will accept a single standard DisplayPort output device. The currently  
selected DisplayPort input source will be output via this port.  
3.5mm Analog Audio Input 1 & 2  
This port will accept audio from a single 3.5mm analog mini-jack source. Two  
ports are available for use and are associated with DisplayPort inputs 1 & 2,  
respectively.  
10 3.5mm Analog Audio Output  
This port will accept a single 3.5mm analog mini-jack cable for connection to an  
amplied audio device. The currently selected audio input source will be output  
via this port.  
11 Infrared (IR) Receiver Extension  
This port will accept an optional IR Receiver Extension product (part# EXT-RMT-  
EXT-IR) for relocation of the IR receiver. This port can be used for additional  
switching options. Please see page 12 for more information.  
12 USB Type A Port  
This port will accept a USB Type A device for use by the source device. Two  
ports for the simultaneous connection of two USB devices.  
13 USB Type B Port 1 & 2  
This port will accept a single USB Type B cable for connection to a USB source  
device. Two ports are available for use and are associated with DisplayPort  
inputs 1 & 2, respectively.  
5
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CONNECTING AND OPERATING THE 2X1 DISPLAYPORT KVM  
Connecting Source Devices to the 2x1 DisplayPort KVM  
1. Connect up to two DisplayPort source devices (i.e. Computer Video Output)  
to the DisplayPort inputs on the 2x1 DisplayPort KVM using the included  
DisplayPort cables. DisplayPort Input 1 will be routed to the DisplayPort  
output when Input 1 is selected, and DisplayPort Input 2 will be routed to the  
DisplayPort output when Input 2 is selected.  
2. Connect up to two audio sources (i.e. Computer Audio Output) to the 3.5mm  
analog audio mini-jack inputs using the included audio cables. Audio Input 1  
will be routed to the audio output when Input 1 is selected, and Audio Input 2  
will be routed to the audio output when Input 2 is selected.  
3. Connect up to two USB source devices (i.e. Computer’s USB port) to the  
USB Type B inputs using the included USB Type A to B cables. USB Input 1  
will be routed to the connected USB devices when Input 1 is selected, and  
USB Input 2 will be routed to the connected USB devices when Input 2 is  
selected.  
Connecting Output Devices to the 2x1 DisplayPort KVM  
1. Connect a DisplayPort device (i.e. DIsplayPort Display) to the DisplayPort  
output on the 2x1 DisplayPort KVM using a user/device supplied DisplayPort  
cable.  
2. Connect an audio device (i.e. Audio Amplier) to the 3.5mm analog audio  
mini-jack output using a user supplied 3.5mm analog audio cable.  
3. Connect up to two USB devices (i.e. Keyboard & Mouse) to the USB Type A  
inputs using user/device supplied USB cables.  
Connecting Power to the 2x1 DisplayPort KVM  
1. Connect the included 5V power supply to the power receptacle on the 2x1  
DisplayPort KVM.  
2. Connect the opposite end of the power supply to an open wall socket power  
source.  
6
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OPERATING THE 2X1 DISPLAYPORT KVM  
How to Operate the 2x1 DisplayPort KVM  
Switching can be accomplished via the front panel selector button, infrared (IR)  
remote control, or the RS-232 communications port. Additional switching options  
can be found on page 12  
1
2
3
For information on switching via the front panel selector button, please see  
this page.  
For information on switching via the infrared (IR) remote control, please see  
page 8.  
For information on switching via RS-232 serial communications, please see  
page 11.  
Switching - Front Panel Selector Button  
Switching can be accomplished via the front panel selector button. This button  
will alternate between Inputs 1 & 2. Each press of this button will change the  
selected input.  
Front Panel Input Selector  
7
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RMT-2IR REMOTE CONTROL DESCRIPTION  
1
2
1
2
Pressing this button will select Input 1 as the source. All devices connected to  
the input ports labeled 1 will be selected and output.  
Pressing this button will select Input 2 as the source. All devices connected to  
the input ports labeled 2 will be selected and output.  
8
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RMT-2IR REMOTE INSTALLATION  
To use the RMT-2IR 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  
9
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INFRARED (IR) CODE CHANNEL CONFIGURATION  
How to Resolve IR Code Conicts  
In the event that IR commands from other remote controls conict with the  
supplied RMT-2IR remote control, changing the remote channel will alleviate  
this issue. The RMT-2IR remote control and the 2x1 DisplayPort KVM 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-2IR is located underneath the battery cover.  
DIP switch banks for the 2x1 DisplayPort KVM are located on the underside of  
the unit beneath a black piece of metallic tape. Switches 1 and 2 on the RMT-2IR  
directly correspond to DIP Switches 1 and 2 on the 2x1 DisplayPort KVM. Only  
switches 1 and 2 (of 4 in that bank) are used for IR Code settings.  
Remote Channel 1:  
Default  
Remote Channel 2:  
Remote Channel 4:  
1
1
2
2
1
1
2
2
Remote Channel 3:  
Left: Picture of the opened rear battery  
compartment of the RMT-2IR remote showing  
the exposed DIP Switch bank between the  
battery chambers.  
2x1 DisplayPort KVM DIP Switch Settings  
Remote Channel 1:  
Default  
Remote Channel 2:  
1
1
3
3
2
2
4
4
1
1
3
3
2
2
4
4
Remote Channel 3:  
Remote Channel 4:  
10  
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RS-232 SERIAL CONTROL INTERFACE  
What features are available via the RS-232 serial communications port?  
The 2x1 DisplayPort KVM can accept commands through the RS-232 serial  
communications port located on the rear panel. The current RS-232 control  
features are:  
Switching of inputs.  
How do I use these features?  
These features were initially intended for utilization by custom installers in  
automated setups. However, these features can be tested by using any Windows  
PC with the Hyperterminal program.  
What pins are used for communication with the 2x1 DisplayPort KVM?  
Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are used for communication.  
A null-modem adapter should not be used with this product.  
5 4 3 2 1  
1 2 3 4 5  
9 8 7 6  
6 7 8 9  
Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface  
What are the communication port settings?  
Bits per second ............................................................................................ 19200  
Data bits ............................................................................................................... 8  
Parity ............................................................................................................. None  
Stop bits ................................................................................................................1  
Flow Control .................................................................................................. None  
Switching/Routing Binary Table  
ASCII  
RMT-2IR  
Button  
Binary  
1
2
1
2
0011 0001  
0011 0010  
11  
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ADDITIONAL SWITCHING OPTIONS  
The underside of the 2x1 DisplayPort KVM features a DIP swich bank that is  
used to congure additional features. Specically, DIP switches 3 & 4 will control  
the function of the IR Extender port on the rear panel.  
This port can be  
congured to accept  
additional switching  
devices  
DIP SWITCH  
Function  
IR Channel  
1
2
3
4
IR Channel  
Remote/Closure  
IR Extender  
DIP Switch 3  
Enabling DIP switch 3 will allow the user to utilize a contact closure type of  
remote control such as Gefen product # EXT-RMT-2 to initiate input switching. By  
default, this switch is in the OFF position and will rely on the standard switching  
methods outlined previously in this manual.  
DIP Switch 4  
DIP switch 4 is the master switch that will enable/disable the ability to use an  
IR remote extender (Part# EXT-RMT-EXTIR) for relocation of the IR receiver.  
By default, this switch is in the OFF position and will disable the use of an IR  
Extender.  
12  
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SPECIFICATIONS  
Input Connector ................................................. (2) DisplayPort (from computers)  
Output Connector ........................................................ (1) DisplayPort (to display)  
Input Connector:........................................(2) USB 2.0 Type “B” (from computers)  
Output Connector: ...............................(2) USB 2.0 Type “A” (to keyboard/mouse)  
Input Connector ............................. (2) 3.5mm analog L/R audio (from computers)  
Output Connector ............. (1) 3.5mm analog L/R audio (to speakers or amplier)  
Color Spaces ............................................................................... RGB and YCbCr  
Maximum Resolution ............................................................................ 2560x1600  
Shipping Weight ............................................................................................ 6 lbs  
13  
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WARRANTY  
Gefen warrants the equipment it manufactures to be free from defects in material  
and workmanship.  
If equipment fails because of such defects and Gefen is notied within two (2)  
years from the date of shipment, Gefen will, at its option, repair or replace the  
equipment, provided that the equipment has not been subjected to mechanical,  
electrical, or other abuse or modications. Equipment that fails under conditions  
other than those covered will be repaired at the current price of parts and labor in  
effect at the time of repair. Such repairs are warranted for ninety (90) days from  
the day of reshipment to the Buyer.  
This warranty is in lieu of all other warranties expressed or implied, including  
without limitation, any implied warranty or merchantability or tness for any  
particular purpose, all of which are expressly disclaimed.  
1. Proof of sale may be required in order to claim warranty.  
2. Customers outside the US are responsible for shipping charges to and from  
Gefen.  
3. Copper cables are limited to a 30 day warranty and cables must be in their  
original condition.  
The information in this manual has been carefully checked and is believed to  
be accurate. However, Gefen assumes no responsibility for any inaccuracies  
that may be contained in this manual. In no event will Gefen be liable for  
direct, indirect, special, incidental, or consequential damages resulting from  
any defect or omission in this manual, even if advised of the possibility of such  
damages. The technical information contained herein regarding the features and  
specications is subject to change without notice.  
For the latest warranty coverage information, refer to the Warranty and Return  
PRODUCT REGISTRATION  
Please register your product online by visiting the Register Product page  
under the Support section of the Gefen Web site.  
14  
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Rev A1  
20600 Nordhoff St., Chatsworth CA 91311  
1-800-545-6900 818-772-9100 fax: 818-772-9120  
Pb  
This product uses UL listed power supplies.  
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