Gefen EXT-DVI-441DL video switch
Contents
1. The 8 position DIP switch bank located on the underside of the 4x1 DVI DL Switcher can be used to set each individual input to work in a Dual Link Only mode These modes should only be enabled if issues occur when using Dual Link sources and displays in the default mode DIP SWITCH Function DIP SWITCH Input 1 Mode 9 2 7 DL Dual Link and SL Single Link Mode Switch OFF DEFAULT e his setting can be set individually for each input This mode will allow the connection of both Dual Link and Single Link displays Function 6 3 NA DL Dual Link Only Mode Switch ON e This setting can be set individually for each input This mode should be enabled if issues with the default occur with Dual Link displays 12 RS 232 SERIAL CONTROL INTERFACE What features are available via the RS 232 serial communications port The 4x1 DVI DL Switcher can accept commands through the RS 232 serial communications port located on the rear panel The current RS 232 control features are the ability to switch route inputs to outputs without the RMT 4IR remote control How do 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 a terminal emulation program The next few pages will show you how What pins are us2. DL Switcher will take any of up to four 4 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 4x1 DVI DL Switcher is housed in a metal box for better RF shielding The 4x1 DVI DL Switcher features EDID storage and programming func tions enabling best compatibility between sources and displays EDID is monitor capability data that enables source devices to create a video picture Please see pages 10 11 for a guide on how to use the EDID features so that you will be able to best use your Switcher FEATURES Features Switches easily between any four DVI SL or DVI DL sources Maintains highest resolution dual link DVI Supports resolutions up through 3840x2400 EDID Storage and programming for best source display compatibility Extends the range of the video signal on the DVI outputs up to 50 feet Discrete IR remote control included e Serial RS 232 port for switching input sources via automated control or PC Supports DDWG standards for DVI monitors e Rack ears included Package Includes 4x1 DVI DL Switcher 6 ft Dual Link DVI cables M M 5V DC Power Supply User s Manual IR remote control 1 4 1 1 1 1 Set of Rack Ears 1 4 1 1 1 1 PANEL LAYOUT Front Panel Back Panel 9 PANEL DESCRIPTIONS External IR Port For connection of external I
3. V 4 d 4 E 5 L 1 GC 2 ies DVI DL Switcher EXT DVI 441DL User Manual E 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 PST Write To Gefen Inc c o Customer Service 20600 Nordhoff St Chatsworth CA 91311 www gefen com support 2gefen com Notice Gefen Inc reserves the right to make changes in the hardware packaging and any accompanying documentation without prior written notice 4x1 DVI DL Switcher is a trademark of Gefen Inc 2009 Gefen Inc All Rights Reserved All trademarks are the property of their respective companies Rev X7 ba c N O e A 11 12 13 14 15 16 17 18 CONTENTS Introduction Operation Notes Features Package Includes Panel Layout Panel Descriptions Connecting and Operating the 4x1 DVI DL Switcher RMT 4IR Remote Description RMT 4IR Remote Installation IR Remote Control and 4x1 DVI DL Switcher Configuration EDID Notes EDID Notes Continued Dual Link Only Modes RS 232 Serial Control Interface RS 232 Serial Control Commands RS 232 Serial Control Commands Cont d Rack Mount Installation Specifications Warranty INTRODUCTION Congratulations on your purchase of the 4x1 DVI DL Switcher Your complete satisfaction is very important to us Gefen Gefen deli
4. 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 Front of unit Hear of unit SPECIFICATIONS Video Amplifier Bandwidih 2x165 MHz Input Video ey Tele E 1 2 Volts p p 116718 P PTl 5 Volts p p TTL Single Link Max Hesolutnon 1920 x 1200 Dual Link Max Resolution c E M 3840 x 2400 DVI DVI I 29 female digital only SUD a sexestete cu ue E E EEE in 5V DC UE HOD KE 20 Watts max Bill PER RR oo m 17 1 W x 1 8 H x 4 4 D acepte d e 1U Rack Space e E 12 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 lieu of all oth
5. R 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 product DVI Signal Status LEDs 1 4 Provide visual confirmation of the currently selected DVI input signal out of the four DVI input ports DVI Input Selector Push button switch cycles the next DVI input 1 4 in a forward sequence starting again at 1 Power Indicator LED Indicates when the 4x1 DVI DL Switcher is receiving 5V DC power from its included AC power supply 5V Locking Power Receptacle Supplies power to the 4x1 DVI DL 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 4 DVI video sources one through four attach to the 4x1 DVI DL Switcher 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 4x1 DVI DL Switcher CONNECTING AND OPERATING THE 4X1 DVI DL SWITCHER How to Connect the 4x1 DVI DL Switcher to your devices 1 Connect user supplied DVI cables from the DVI sources into the 4x1 DVI Switcher s Inputs Connect the cable from your display monitor or projector into the DVI Out of the 4x1 DVI DL Switcher Connect the 5V power supply then plug it into the wall Turn on the DVI display or projector first then the video sou
6. Switch bank on the RMT 4IR is located underneath the battery cover DIP Switch banks for the 4x1 DVI DL 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 4IR directly correspond to DIP Switches 1 and 2 on the 4x1 DVI DL Switcher 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 3 Remote Channel 4 Left Picture of the opened rear battery compartment of the RMT4 IR remote showing the exposed DIP Switch bank between the battery chambers 4x1 DVI DL Switcher Remote Channel 1 Default Remote Channel 3 B ale Remote Channel 2 Remote Channel 4 1234 EDID NOTES What is EDID and what is it used for Under normal circumstances an audio video source device digital or analog will require information about a connected device display to assess what resolutions and features capabilities are possible The source device can then cater its output to create resolutions and or features that are compatible with the attached device display This capability information is called EDID Extended Display Identification Data A source device can only accept and read one EDID data structure record from a con
7. ed for communication with the 4x1 DVI DL Switcher Only pins 2 Receive 3 Transmit and 5 Ground are used for communication A null modem adapter should not be used with this Switcher 9876 Only Pins 2 RX 3 TX and 5 Ground are used on the RS 232 serial interface What are the RS 232 communications port settings Bits per second EE 19200 Ke 8 tege None EE 1 mete PRU em None 13 RS 232 SERIAL COMMUNICATION COMMANDS 1 REMOTE SWITCHING FUNCTION The Switcher can be told to route one of 4 inputs to the Display by sending a single ASCII character over RS 232 corresponding to the selected source This character is known as the short cut character 1 1 SWITCHING SOURCES BY SHORT CUT CHARACTER The ASCII character table below indicates which Switcher input will be routed to the output Display when the corresponding ASCII numeric character is typed Technical details on the following page show how and where to type these short cut characters to create the desired switching within Microsoft Windows ASCII 0011 0001 0011 0010 0011 0011 0011 0100 14 RS 232 SERIAL COMMUNICATION COMMANDS CONT D 2 USING SHORT CUT CHARACTERS TO CHANGE SETTINGS 2 1 HYPERTERMINAL SETTINGS in Microsoft Windows First please setup correct communications by performing these commands as shown on the screen shot immediately below File Properti
8. er 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 please visit Gefen s Warranty web page at http www gefen com kvm aboutus warranty jsp PRODUCT REGISTRATION Please register your product online by visiting Gefen s web site at http www gefen com kvm Registry Registration jsp 18 Rev X7 441DL ma DVI 20600 Nordhoff St Chatsworth CA 91311 1 800 545 6900 818 772 9100 fax 818 772 9120 www gefen com support gefen com E
9. es Setting ASCII Setup COM1 19200 HyperTerminal H lit 16 li r P oF s E COM1 19200 Properties Connect To Settings Function arrow and ctrl keys act as Terminal keys Windows keys Backspace key sends D Del Cul H Space Cul H Emulation KE Telnet terminal ID 52 ASCII Sending Backscroll buffer lines 1500 Send line ends with line feeds Echo typed characters local 1 Play sound when connecting or disconnecting 1 b ASCII Setup Character delay 0 millisecor ds ASCII Receiving Append line feeds to incoming line ends lt Force incoming data to 7 bit ASCII Z Wrap lines that exceed terminal width Line delay 0 milliseconds Gesi en onnected 00 11 04 19200 8 N 1 Wei Zait Print r MCa ees ip File ager Also please be sure to unmark the check box that says Send line ends with line feeds 2 2 EXAMPLE CHANGE THE ROUTED SOURCE Now you are ready to route Display input sources At the Hyperterminal cursor prompt type the numeral key of the input to switch to followed by the ENTER key Wait until you see the message Function Done on the Display At this point the Display should show the correct Source corresponding to the numeral that was typed 15 RACK MOUNT INSTALLATION Rack mount ears are provided for installation of this unit into a 1U rack mount space 1 Locate
10. et to work in a dual link only mode Please see page 12 for more information on this feature 4X1 DVI DL SWITCHER REMOTE DESCRIPTION LED Indicator Input Selection Buttons The RMT 4IR remote control will allow the user to select which of 4 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 4IR Button DVI Source 4X1 DVI DL SWITCHER REMOTE INSTALLATION To use the RMT 4IR 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 4X1 REMOTE CONTROL AND SWITCHER CONFIGURATION How to Resolve IR Code Conflicts In the event that IR commands from other remote controls conflict with the supplied RMT 4IR remote control changing the remote control channel will alleviate this issue The RMT 4IR remote control and the 4x1 DVI DL Switcher both have banks of DIP Dual Inline Package Switches for configuring the remote channel that the units use to communicate These settings must exactly match each other for proper operation The DIP
11. nected source device display Likewise the source device can output only one video resolution to a connected device display The importance of EDID with regards to the 4x1 DVI DL Switcher The 4x1 DVI DL Switcher handles multiple sources inputs Each connected source device must correctly read one EDID data structure in order to address its display device correctly EDID management is carefully handled by the 4x1 DVI DL Switcher to insure that EDID is recorded and retransmitted properly otherwise display of the input sources might not happen correctly or at all Managing EDID with the 4x1 DVI DL Switcher The 4x1 DVI DL Switcher uses 2 modes for routing EDID They are 1 When the LOCAL EDID Mode is ON factory default setting the Switcher copies the EDID of the connected display to each of the input sources upon power up Programmed EDIDs may also be used 2 When the LOCAL EDID Mode is OFF the Switcher copies the EDID of the connected display to each of the input sources local memory location as they are selected Each source device must fully boot up before you can select the next input 3 Both modes are described in greater detail on the opposite page How do I change EDID modes in the 4x1 DVI DL Switcher There is a bank of 4 DIP Dual Inline Package switches located on the main circuit board of the Switcher underneath a small piece of silver grey tape on the underside of the Switcher When the sticker is removed there
12. rces computers Turn on the 4x1 DVI DL Switcher by screwing its 5V DC power supply tip into the receptacle in the rear of the chassis Note The Switcher retrieves device resolution and video timing capability information called EDID from the display and feeds it to all connected input sources This mode of operation is called LOCAL EDID mode It allows a much faster setup time and improved operational stability since input sources do not need to individually collect and store EDID on their own If some sources do not display correctly you can individually configure each input source and or program custom EDIDs such as standard compatible resolutions into the Switcher or alternately set each input source to directly read EDID from the display device with the Local EDID Mode turned OFF These procedures are covered in detail on pages 10 11 along with EDID concepts in general How to Operate the 4x1 DVI DL Switcher 4 Use the RMT 4IR remote control to remotely switch between DVI video sources Alternatively sources may be selected by using an RS 232 control system such as a PC with communications software for example a terminal emulator or an automated control system such as Crestron Please see page 13 onwards if you wish to use this method to remotely switch input sources on the Switcher using the RS 232 protocol If issues occur when using Dual Link sources and displays in the default mode each individual output can be s
13. vers 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 DL Switcher The rack mountable Gefen 4x1 DVI DL 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 DL Switcher shares one dual link 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 DL SWITCHER The 4x1 DVI
14. will be two DIP switch banks visible one with 4 switches and one with 8 switches The 8 switch DIP switch bank is not used here it is used for the DL dual link feature covered later on page 12 10 EDID NOTES CONT D EDID Modes The diagram below illustrates the 4 position DIP switch bank containing 4 small white toggle switches as shown The functions of the switches are as follows DIP SWITCH Function 234 Use DIP switch 3 to set the desired EDID mode How to set the two EDID Modes 1 LOCAL EDID Mode ON Switch 3 OFF FACTORY DEFAULT SETTING e During power on the connected display s EDID is copied to all four LOCAL EDID storage locations at once EDID stored in LOCAL memory is then passed to all input sources e The EDID stored in the LOCAL locations can be overwritten with another EDID from the following locations e Built in EDID memory bank up to 7 EDID records can be stored e EDID collected directly from the input display upon power up Note All changes to EDID in Local EDID Mode will be lost upon power loss 2 Local EDID Mode OFF Switch 3 ON e DDC signal of the connected display is routed directly to each input source Each time a new source device is selected EDID is transmitted from the attached display to the currently selected input source For EDID writing to be successful the Switcher must be powered on 11 DL DUAL LINK ONLY MODES DL Dual Link Only Modes
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