Gefen EXT-DVI-841 video switch
Contents
1. 20 Watts max Wissen 17 W x 1 75 Hx 4375 D Hackmountable 1U Rack Space SAID DING EE 12 Ibs 18 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 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 will2. command will present the menu for setting functions 2 2 MODIFY BY FUNCTION The syntax for invoking functions is as follows The character is the start flag followed by the function name in capital letters and a space The space delineates the end of the function name The parameters required for each function are separated by a space and end with the r character or Enter ZFunctionName Garam param2 Garam paramd W 13 RS 232 SERIAL COMMUNICATION COMMANDS CONT D DS EDID store in local inputs EDID memory This function reads an EDID record from DS and stores it in all the local inputs EDID memory banks ZEDIDDSTOLO DS EDID store in EDID Memory Bank This function reads an EDID from DS and stores it in an EDID bank ZEDIDDSTOBA param1r EDID bank ffs 7 Read EDID from EDID Memory Bank amp Store in Local EDID Memories This function reads an EDID record from the EDID bank and stores it in all Inputs local EDID memory banks ZEDIDBATOLO 1 EDID bank ffs 7 Route Input DDC to DS EDID This function routes Input s DDC to DS EDID pass through mode DDCTODS Route Input DDC to Local EDID This function routes Input s DDC to Local EDID DDCTOLO Print DS EDID This function reads DS EDID and sends it to the serial port PRDSEDID_param1 r Send BIN file Send TXT file 1 Print Local EDID This function reads the Input s Local EDID and sends it to the serial port ZPHLOEDID pa
3. 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 19 Rev X5 841 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 Go Q9
4. local display device or from a remote source over the RS 232 serial communications port The 8x1 DVI Switcher includes a built in EDID memory bank which can store up to 7 separate EDID data structures which can then be loaded to each of the LOCAL EDID locations 2 second mode is the DS Down Stream mode which functions as simple EDID pass through In this mode the display device connected to the 8x1 DVI Switcher will pass its EDID directly to whichever DVI input source is currently selected How do I change EDID modes in the 8x1 DVI Switcher There is an bank of 4 DIP switches located on the main circuit board on the underside of the 8x1 DVI Switcher DIP switch 3 can be used to set either the DS or LOCAL EDID modes TIP Advanced EDID functions can also be managed via the RS 232 serial communications port See page 13 for more information on the RS 232 serial communication features 10 EDID NOTES CONT D EDID Modes The diagram below illustrates the DIP switch bank of 4 The 8 DIP switch bank functions are outlined later on this page SWITCH Function 2 3 4 Use DIP switch 3 to set the desired EDID mode LOCAL EDID Mode Switch 3 OFF DEFAULT e EDID that is stored the LOCAL memory location is passed to all inputs e By default during each power on process the connected display s EDID will be automatically copied to each of the inputs LOCAL EDID locations e EDID stor
5. DVI input ports Power Indicator LED Indicates when the 8x1 DVI Switcher is receiving 5V DC power from its included AC power supply 5V Locking Power Receptacle Supplies power to the 8x1 DVI 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 8 DVI video sources one through eight attach to the 8x1 DVI 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 8x1 DVI Switcher CONNECTING AND OPERATING THE 8X1 DVI SWITCHER How to Connect the 8x1 DVI Switcher to your devices 1 Connect the supplied DVI cables from the DVI sources into the 8 1 Switcher s Inputs Connect the cable from your display monitor or projector into the DVI Out of the 8x1 DVI Switcher Connect the included 5V power supply then plug it into the wall Turn on the DVI display or projector first then the video sources Turn on the 8x1 DVI Switcher by screwing its 5V DC power supply tip into the receptacle in the rear of the chassis Note Computers must be turned on one at a time and the switcher must be selected to the computer that is currently booting up This is so that monitor information EDID is correctly transmitted from the display to each computer After one computer completes the startup process you can boot up
6. ET Gefen Uy 8x1 DVI Switcher EXT DVI 841 User s Manual E Www gefen com DT 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 8x1 DVI is a trademark of Gefen Inc 2010 Gefen Inc All Rights Reserved All trademarks are the property of their respective owners Rev X5 c N A 11 12 13 14 15 16 17 18 19 CONTENTS Introduction Operation Notes Features Package Includes Panel Layout Panel Descriptions Connecting and Operating the 8x1 DVI Switcher RMT 8IR Remote Description RMT 8IR Remote Installation IR Remote Control and 8x1 Switcher Configuration EDID Notes EDID Notes Continued RS 232 Serial Control Interface RS 232 Serial Control Commands RS 232 Serial Control Commands Continued RS 232 Serial Control Commands Continued RS 232 Serial Communication Uploading EDID Rack Mount Instructions Specifications Warranty INTRODUCTION Congratulations on your purchase of the 8x1 DVI Switcher Your complete satisfaction is very important to us Gefen Gefen delivers i
7. e battery is needed for operation and the other battery is complimentary Empty Battery Slot IR Code Dip Switches 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 control channel will alleviate this issue The RMT 8IR remote control and the 8x1 DVI 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 Switch bank on the RMT 8IR is located underneath the battery cover DIP Switch banks for the 8x1 DVI 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 Switcher Only switches 1 and 2 of 4 in that bank are used for IR Code settings Remote Channel 1 Remote Channel 2 Default Remote Channel 3 Remote Channel 4 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 Switcher Remote Channel 1 Default Remote Channel 3 B a
8. e feeds Echo typed characters locally Line delay o milliseconds Input Translation ASCII Setup Character delay 0 milliseconds ASCII Receiving Append line feeds to incoming line ends v Force incoming data to 7 bit ASCII Wrap lines that exceed terminal width 1 Play sound when connecting or disconnecting Connected 00 11 04 52 19200 8 N 1 CRO plur Print echa Lu m ip Pile Manse Unmark the check box of Send line ends with Line feeds 3 2 SEND THE FILE Transfer gt Send text file Change Files of type to All files Open the file BIN to send Wait until Function Done 16 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 Front of unit Hear of unit SPECIFICATIONS Video Amplifier Bandwidth eese 165 MHz Input Video Tele E 1 2 Volts p p 5 Volts TTL Single Link Hange esses ener nennen nnn nnn 1920 x 1200 DVI COPIWBCIO DVI I 29 pin female digital only miei RE E NEM 5V DC Power bant utes pauio
9. ed in the LOCAL locations can be overwritten with another EDID from the following locations These options can only be initiated by using RS 232 serial communication commands e Built in EDID memory bank up to 7 EDID records can be stored EDID collected directly from the input display e Externally uploaded via the RS 232 command set For the default EDID writing process to be successful the connected display must be powered on DS Down Stream EDID Mode Switch 3 ON e EDID is passed directly from the connected display to the currently active input 11 RS 232 SERIAL CONTROL INTERFACE What features are available via the RS 232 serial communications port The 8x1 DVI Switcher can accept commands through the RS 232 serial communications port located on the rear panel The current RS 232 control features are e Switching routing of inputs to outputs without the RMT 8IR remote control e Switch EDID modes without operating the DIP switches on the underside of the unit e Managing the EDID memory bank and the EDID that is loaded into the LOCAL EDID memory bank e Upload new EDID data to the EDID memory bank or directly to the LOCAL EDID location 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 the Hyperterminal program What pins are used for communication with the 8
10. le 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 connected 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 8x1 DVI Switcher The 8x1 DVISwitcher 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 8x1 DVISwitcher to insure that EDID is recorded and retransmitted properly otherwise display of input sources might not happen correctly or at all Managing EDID with the 8x1 DVI Switcher The 8x1 DVISwitcher has the ability to use 2 modes for routing EDID 1 The default mode is the LOCAL mode which will store the EDID of a source device one for each input into the 8x1 DVI Switcher The EDID stored in each LOCAL location can be from a
11. nnovative 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 Switcher The rack mountable Gefen 8x1 single link 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 8x1 DVI Switcher shares one DVI 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 READ THESE NOTES BEFORE INSTALLING OR OPERATING THE GEFEN 8X1 DVI SWITCHER The 8x1 DVI Switche
12. r will take any of up to eight 8 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 can be up to 1920x1200 The 8x1 DVI Switcher is housed in a metal box for better RF shielding Computers must be turned on one at a time and during this process the 8x1 DVI Switcher must be selected to the computer that is currently booting up This is so that monitor information EDID can be transmitted properly from the display to each computer Please see page 6 for further information FEATURES Features e Switches easily between any eight DVI sources Maintains highest resolution single link DVI at 1920x1200 Discrete IR remote control included e Serial RS 232 remote port for switching via automated control or PC e Supports DDWG standards for DVI monitors Rack ears included Package Includes 1 8x1 DVI Switcher 1 RMT 8IR Remote Control 1 5V DC Power Supply 8 6 foot DVI cables 1 Set of rack ears 1 User s Manual PANEL LAYOUT Front Panel Back Panel PANEL DESCRIPTIONS 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 product DVI Signal Status LEDs 1 8 Provide visual confirmation of the currently selected DVI input signal out of the eight
13. ram1 r Parameter Name Send BIN file Send TXT file 1 14 RS 232 SERIAL COMMUNICATION COMMANDS CONT D Print EDID bank This function reads EDID data from the EDID bank and sends it to the serial port PRBAEDID_param1_param2 r EDID bank offset 7 0 o Load EDID to Locals EDID This function loads EDID data through the serial port and stores it in any Input s Local EDID memory bank LOEDIDTOLO_param1_param2 r _ EPIDb fie 256 bytes Load EDID to EDID bank This function loads EDID through the serial port and stores it in the EDID bank 4LOEDIDTOBA Garam param2W Full echo mode bi EDID bin file 256 bytes EDID bank offset EDID bin file 128 bytes Set default setting This function reinitializes the Switcher with default factory settings 1 All the features are set according to the position of the hardware switches ZDEFW 15 RS 232 SERIAL COMMUNICATION UPLOAD EDID 3 HOW TO LOAD FILE WITH HYPER TERMINAL 3 1 HYPER TERMINAL SETTING File gt Properties gt Setting gt ASCIl Setup COM1 19200 HyperTerminal Fi Edi lj Dc c COM1 19200 Properties Connect To Settings Function arrow and ctl keys act as Terminal keys Windows keys Backspace key sends Dahl Del Cul H Space Ctil H Emulation EG e Telnet terminal ID HCH ASCII Sending Backscroll buffer lines 500 C Send line ends with lin
14. the second computer and repeat the process with the remaining computers This can be avoided with the use of the LOCAL EDID mode page 11 that will constantly supply each computer with an EDID In this scenario a stored EDID or user uploaded EDID is supplied to each input for use by the connected source device 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 Switcher 4 Use the RMT 8IR remote control to remotely switch between DVI video sources Alternatively use a RS 232 control system such as a PC with communications software for example Microsoft s Hyperterminal or an automated control system such as Crestron 8X1 DVI SWITCHER 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 8X1 DVI 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 On
15. x1 DVI 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 94321 6789 Only Pins 2 RX 3 TX and 5 Ground used the RS 232 serial interface 9876 What are the RS 232 communications port settings Bits Second MN T 19200 Ke 8 XEM ENTM None Stop NS I 1 molten HO None 12 RS 232 SERIAL COMMUNICATION COMMANDS CONT D 1 ECHO PROTOCOL Definition Semi echo mode the Switcher echoes every byte it receives except when receiving EDID data structures records Full echo mode the Switcher echoes every byte it receives even when receiving EDID data structures records The default operating mode is Semi echo mode If working with Hyperterminal under Microsoft Windows choose the semi echo mode 2 REMOTE FUNCTION The remote functions are used to modify settings on the Switcher such as Input to output routing EDID memories management etc These functions are available only by using serial port commands 2 1 MODIFY BY SHORT CUT CHARACTER Switching command The character below indicates which input will route to the output 2 2 J 001000 3 83 900001 ___4 24 9 001010 ___5 5 J omom 6 6 _ _ 8 8 001100 Setting function menu The P or
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