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1. lieu of all other warranties expressed or implied including without limitation any implied warranty or merchantability or fitness 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 specifications is subject to change without notice For the latest warranty coverage information refer to the Warranty and Return Policy under the Support section of the Gefen Web site at www gefen com PRODUCT REGISTRATION Please register your product online by visiting the Register Product page under the Support section of the Gefen Web site 18 xMA DVI 441 20600 Nordhoff St Chatsworth CA 91311 1 800 545 6900 818 772 9100 fax 818 772 9120 www gefen com support gefen com CE x es Thi
2. E x1 DVI Switcher EXT DVI 441N User Manual w gefen com ASKING FOR ASSISTANCE Technical Support Telephone 818 772 9100 800 545 6900 Fax 818 772 9120 Technical Support Hours 8 00 AM to 5 00 PM Monday thru Friday Write To Gefen LLC c o Customer Service 20600 Nordhoff St Chatsworth CA 91311 www gefen com support 2gefen com Notice Gefen LLC reserves the right to make changes in the hardware packaging and any accompanying documentation without prior written notice 4x1 DVI Switcher is a trademark of Gefen LLC 2011 Gefen LLC All Rights Reserved All trademarks are the property of their respective owners Rev A7 CO CON OOF CO N 11 12 12 13 13 13 14 15 16 17 18 CONTENTS Introduction Operation Notes Features Front Panel Layout Front Panel Descriptions Back Panel Layout Back Panel Descriptions IR Remote Control Unit Layout and Description Installing the Battery Setting the IR channel on the Remote Setting the IR channel on the 4x1 DVI Switcher Connecting the 4x1 DVI Switcher Wiring Diagram Operating the 4x1 DVI Switcher Front Panel Buttons and LED Indicators Switching sources using the front panel buttons Switching sources using the IR Remote Control Unit Switching sources using RS 232 RS 232 Control Specifications Warranty INTRODUCTION Congratulations on your purchase of the Gefen 4x1 DVI Switcher Your complete satisfaction is very important to us Ge
3. Switcher will take any of up to four 4 DVI single link resolution inputs and switch them one at a time to a DVI output device such as a display monitor or projector Resolutions up to 1920x1200 are supported The 4x1 DVI 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 Afterwards the Switcher can be routed to any input FEATURES Features Switches easily between any four DVI sources Maintains highest resolution single link DVI at 1920x1200 Discrete IR remote control included Serial RS 232 remote port for switching via automated control or PC e Supports DDWG standards for DVI monitors Package Includes 4x1 DVI Switcher 6 ft DVI cables IR Remote Control Unit 5V DC Power Supply 1 4 1 1 1 User Manual Front Panel FRONT PANEL LAYOUT FRONT PANEL DESCRIPTIONS Input Indicators 1 4 Each of these LED indicators glows bright blue according to the current DVI input selection see nput Buttons below IR Receives IR signals from the included IR Remote Control Unit Input Buttons 1 4 Pressing each of these buttons selects the desired DVI input source 1 4 Power This LED indicator will glow bright red when the unit is powered Back Panel BACK PANEL LAYOUT BACK PANEL DESCRIPTIONS 5V DC Connect the included 5V DC locki
4. TTA None NOTE Only pins 2 Receive 3 Transmit and 5 Ground are used for communication A null modem adapter should not be used with this product 16 SPECIFICATIONS Maximum Pixel CIocK d usu tent UE 165 MHz Input Video 1 2 Volts p p Input nnnm 5 Volts p p TTL DVI Input Connectors pp 4 DVI I 29 pin female digital only DVI Output Connectors pp 1 DVI I 29 pin female digital only RS 232 Connector aeri aiii anri inte adu les ut ted ha Ari Sensi 1 DB 9 female IR Extender Connector pp 1 3 5 mm mini stereo aie i 5 V DC Power Consumption NO 10 Watts max PIGS 14 W x 1 2 H x 2 9 D Shipping VV 7 Ibs 17 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 notified 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 modifications 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
5. fen 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 4x1 DVI Switcher The rack mountable Gefen 4x1 DVI 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 4x1 DVI Switcher shares one DVI display with up to four 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 four 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 4IR remote control RS 232 control or the input selector push button on the front panel of the switcher OPERATION NOTES READ THESE NOTES BEFORE INSTALLING OR OPERATING THE GEFEN 4X1 DVI SWITCHER The 4x1 DVI
6. ng power supply to this receptacle In 1 In 4 Each of these ports will accept a DVI source device DVI Out This port will accept a single DVI output device The currently selected DVI input source will be output via this port RS 232 This port is used for serial communication using an RS 232 control device For details refer to page 16 Ext IR Connect an IR extender Gefen part no EXT RMT EXTIR cable to this port IR REMOTE CONTROL UNIT Layout and Description Activity Indicator This LED will be activated momentarily each time a button is pressed Source Selection Buttons 1 4 These buttons are used to select which source is routed to a monitor NOTE An Activity Indictor that flashes quickly while holding down any one of the sixteen buttons indicates a low battery Replace the IR Remote Control battery as soon as possible IR REMOTE CONTROL UNIT Installing the Battery 1 Remove the battery cover on the back of the IR Remote Control Unit 2 Insert the included battery into the open battery slot The positive side of the battery should be facing up 3 Replace the battery cover The Remote Control unit ships with two batteries One battery is required for operation and the other battery is a spare Battery Slot WARNING Risk of explosion if battery is replaced by an incorrect type Dispose of used batteries according to the instructions IR REMOTE CONTROL UNIT Setting the IR cha
7. nnel on the Remote In the event that IR commands from other remote controls interfere with the supplied IR Remote Control unit changing the IR Remote Control s IR channel will fix the problem The IR Remote Control unit has a bank of DIP switches used for setting the IR channel The DIP switch bank is located underneath the battery cover Gefen Left Picture of the opened rear battery compartment of the IR remote showing the exposed DIP Switch 9 bank between the e battery chambers Corresponding DIP Switch Settings for each IR Channel IR Channel 0 1 IR d 2 IR mE 3 It is important that the IR channel on the Remote Control unit matches the IR channel set on the 4x1 DVI Switcher For example if both DIP switches on the IR Remote Control unit are set to IR channel 0 both DIP switches down then the 4x1 DVI Switcher must also be set to IR channel 0 See the next page for details on how to change the IR channel on the 4x1 DVI Switcher 10 IR REMOTE CONTROL UNIT Setting the IR channel on the 4x1 DVI Switcher In order for the IR Remote Control Unit to communicate properly with the owitcher both the Remote and the Switcher must be set to the same IR channel The 4x1 DVI Switcher has a bank of eight 8 DIP switches on the bottom of the unit DIP switch 7 and 8 are used to set the IR channel for the Switcher DIP switches 1 6 are reserved for future expansion Left DIP switch 7 and 8 on
8. s product uses UL listed power supplies Rev A7
9. the bottom of the Switcher These DIP switches are in the default OFF position Wa s 7 Use the following settings for DIP switch 7 and 8 to set the IR channel on the 4x1 DVI Switcher IR Channel 0 IR Channel 1 IR Channel 2 IR Channel 3 11 CONNECTING THE 4X1 DVI SWITCHER How to Connect the 4x1 DVI Switcher 1 Connect up to four 4 computers to the DVI inputs on the back panel of the Switcher using the included DVI cables 2 Connect a DVI display to the DVI output on the back panel of the Switcher a OPTIONAL To use the RS 232 control connect an RS 232 cable between the Switcher and RS 232 host controller b OPTIONAL To extend the range of the IR control connect an IR Extender Gefen part no EXT RMT EXTIR to the back of the Switcher 3 Connect the included 5V locking power supply to the power receptacle on the 4x1 DVI Switcher 4 Connect the AC power cord to an available electrical outlet Wiring Diagram for the 4x1 DisplayPort Switcher Computer DVI CABLE Computer Computer Computer Switcher DVI MONITOR EXT DVI 441N i ATTENTION This product should always be connected to a A grounded electrical socket 12 OPERATING THE 4X1 DVI SWITCHER Front Panel Buttons and LED Indicators The front panel of the 4x1 DisplayPort Switcher has a set of four 4 LED indicators displaying which input Source is being displayed Each of these LED indicators corresponds to one of
10. the push buttons on the front panel Switching sources using the front panel buttons Example Switch to input 3 using the front panel buttons 1 Press button 3 on the front panel of the 4x1 DisplayPort Switcher 2 The LED indicator for input 3 will glow bright blue on the front panel 13 OPERATING THE 4X1 DVI SWITCHER Switching sources using the IR Remote Control Unit Example Switch to Input 1 using the IR Remote Control 1 Press button 1 on the IR Remote Control Unit The Activity Indicator on the IT Remote Control Unit will glow yellow indicating that a button was pressed 2 TheLED indicator for input 1 will glow bright blue 14 OPERATING THE 4X1 DVI SWITCHER Switching sources using RS 232 Configure the Switch for use with RS 232 see page 14 for details Example Switch to input 4 using RS 232 1 Type 4 then press the Enter key to route the Switcher to Input 4 See page 15 for additional information on RS 232 commands 2 The LED indicator for Input 4 will glow bright green on the front panel terminal ready 4 Route to Input 4 15 RS 232 CONTROL Only pins 2 Receive 3 Transmit and 5 Ground are used for communication A null modem adapter should not be used with this product 9876 Only Pins 2 RX 3 TX and 5 Ground are used on the RS 232 serial interface Serial Port Settings Bits 19200 8 None wee e 1 mcd NER
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