® 8x1 DVI Switcher EXT-DVI-841 User’s Manual www.gefen.
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CONTENTS 1 Introduction 2 Operation Notes 3 Features / Package Includes 4 Panel Layout 5 Panel Descriptions 6 Connecting and Operating the 8x1 DVI Switcher 7 RMT-8IR Remote Description 8 RMT-8IR Remote Installation 9 IR Remote Control and 8x1 Switcher Configuration 10 EDID Notes 11 EDID Notes, Continued 12 RS-232 Serial Control Interface 13 RS-232 Serial Control Commands 14 RS-232 Serial Control Commands, Continued 15 RS-232 Serial Control Commands, Continued 16 RS-232 Serial Communication
INTRODUCTION Congratulations on your purchase of the 8x1 DVI 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.
OPERATION NOTES READ THESE NOTES BEFORE INSTALLING OR OPERATING THE GEFEN 8X1 DVI SWITCHER • The 8x1 DVI Switcher 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.
FEATURES Features • Switches easily between any eight 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 • 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 3
PANEL LAYOUT Front Panel 1 2 3 4 Back Panel 8 5 7 6 4
PANEL DESCRIPTIONS 1 External IR Port For connection of external IR extension device such as the Gefen IR Extender (part # EXT-RMT-EXTIR). 2 IR Receiver Receives IR signal from the handheld Infrared remote control unit included with the product. 3 DVI Signal Status LEDs 1-8 Provide visual confirmation of the currently selected DVI input signal out of the eight DVI input ports. 4 Power Indicator LED Indicates when the 8x1 DVI Switcher is receiving 5V DC power from its included AC power supply.
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 8x1 DVI Switcher’s Inputs. 2. Connect the cable from your display (monitor or projector) into the DVI Out of the 8x1 DVI Switcher. 3. Connect the included 5V power supply, then plug it into the wall. Turn on the DVI display or projector first, then the video sources.
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.
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. One battery is needed for operation and the other battery is complimentary.
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.
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).
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. 1 2 3 4 DIP SWITCH Function 1 IR Channel 2 IR Channel 3 EDID Mode 4 N/A Use DIP switch 3 to set the desired EDID mode. LOCAL EDID Mode (Switch 3=OFF) DEFAULT • EDID that is stored in the LOCAL memory location is passed to all inputs.
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: • Switching/routing of inputs to outputs without the RMT-8IR remote control. • Switch EDID modes without operating the DIP switches on the underside of the unit.
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 Windowstm, choose the semi echo mode. 2.
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. #EDIDDSTOLO DS EDID store in EDID Memory Bank This function reads an EDID from DS and stores it in an EDID bank.
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 Parameter 1 2 Name Value EDID bank offset [1 : 7 ] Send BIN file 0 Send TXT file 1 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 Parameter Name Value 1 Semi echo mode 0 Full echo mode 1 2 EDID.
RS-232 SERIAL COMMUNICATION - UPLOAD EDID 3. HOW TO LOAD FILE WITH HYPER TERMINAL 3.1 HYPER TERMINAL SETTING File->Properties->Setting->ASCII Setup: Unmark the check box of “Send line ends with Line feeds” 3.2 SEND THE FILE Transfer->Send text file… Change “Files of type:” to “All files (*.*)” Open the file.
RACK MOUNT INSTALLATION Rack mount ears are provided for installation of this unit into a 1U rack mount space. 1. 2. 3. 4. Locate the side screws on the unit. Remove the front 2 screws that are located closest to the front of the unit. Using the removed screws, screw the rack mounting bracket into the unit. Repeat the procedure on the opposite side of the unit.
SPECIFICATIONS Video Amplifier Bandwidth:........................................................................165 MHz Input Video Signal:...............................................................................1.2 Volts p-p Input DDC Signal:..........................................................................5 Volts p-p (TTL) Single Link Range:...............................................................................1920 x 1200 DVI Connector:..............................................
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.
*ma-DVI-841* Rev X5 20600 Nordhoff St., Chatsworth CA 91311 1-800-545-6900 818-772-9100 www.gefen.com fax: 818-772-9120 support@gefen.
