® 1:4 DVI Dual Link Splitter EXT-DVI-144DL User Manual www.gefen.
ASKING FOR ASSISTANCE Technical Support: Telephone Fax (818) 772-9100 (800) 545-6900 (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@gefen.com Notice Gefen, LLC reserves the right to make changes in the hardware, packaging, and any accompanying documentation without prior written notice. 1:4 DVI Dual Link Splitter is a trademark of Gefen LLC © 2011 Gefen, LLC.
CONTENTS 1 Introduction 2 Operation Notes 3 Features 4 Front Panel Layout 5 Front Panel Descriptions 6 Back Panel Layout 7 Back Panel Descriptions 8 Connecting the 1:4 DVI Dual Link Splitter 8 9 Wiring Diagram RS-232 Control 10 RS-232 Commands 12 EDID Management 13 Masking Commands 14 System Commands 16 Firmware Update 17 Rack Ear Installation 18 Specifications 19 Warranty
INTRODUCTION Congratulations on your purchase of the 1:4 DVI Dual Link Splitter. Your complete satisfaction is very important to us. Gefen Gefen delivers innovative and 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 1:4 DVI DUAL LINK SPLITTER • HDCP content is not supported.
FEATURES Features • Distributes one dual link source to four DVI dual link outputs • Supports up to 1080p, 2K, and 2560 x 1600 resolutions • EDID Management for rapid integration of source and displays • Output masking • RS-232 for firmware, masking, and EDID management • Standby mode • Rack-mountable Package Includes (1) 1:4 DVI Dual Link Splitter (1) 6ft. DB9 Cable (M-F) (1) 6ft.
Front Panel 1 FRONT PANEL LAYOUT 4
FRONT PANEL DESCRIPTIONS 1 Power This LED indicator will glow bright red when the unit is powered.
1 2 3 4 Back Panel BACK PANEL LAYOUT 6
BACK PANEL DESCRIPTIONS 1 5V DC Connect the included 5V DC locking power supply to this receptacle. 2 DVI In Connect a dual link computer source to the DVI In connector. 3 RS-232 Serial Port This port is used for serial communication using an RS-232 control device. For details, refer to page 9 4 Out (1 - 4) Connect up to four (4) dual link DVI displays to each of the DVI Out connectors.
CONNECTING THE 1:4 DVI DUAL LINK SPLITTER How to Connect the 1:4 DVI Dual Link Splitter 1 Connect the included dual link DVI cable between the DVI source and the DVI In connector on the Splitter. 2 Connect up to four (4) dual link DVI displays to each of the DVI Out connectors on the Splitter. 3 OPTIONAL: To use the RS-232 communication feature, connect an RS-232 cable between the Splitter and the RS-232 host controller.
RS-232 CONTROL Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are used for communication. 54321 12345 9876 6789 Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface Default Serial Port Settings Bits per second ............................................................................................ 19200 Data bits ............................................................................................................... 8 Parity .................................
RS-232 COMMANDS Command Syntax Each command uses the following syntax: #Command_Name [Space] Parameter 1 [Space] Parameter n [CR] Sample: #FunctionName_param1_param2_param3_param4...\r Syntax is NOT case sensitive.
RS-232 COMMANDS #EDIDDSTOLO Command The #EDIDDSTOLO command reads the downstream EDID and stores into all local inputs. Syntax: #ediddstolo Parameters: None #LOEDIDTOLO Function The #LOEDIDTOLO function loads the specified EDID file to a specified local input. Syntax: #LOEDIDTOLO param1 Parameters: param1 EDID size [1 - 2] Value Meaning 1 128 byte EDID 2 256 byte EDID Instructions: 1. Launch Windows® HyperTerminal (or any terminal emulation program). 2. Click Transfer > Send Text File... 3.
RS-232 COMMANDS #PRDSEDID Function The #PRDSEDID command reads the downstream EDID and spools it to the serial port. Syntax: #PRDSEDID param1 Parameters: param1 Monitor [1 - 4] #PRLOEDID Function The #PRLOEDID command reads the local EDID and spools it to the serial port.
RS-232 COMMANDS Masking Commands Command Description #MASKOUT Masks the specified output #UNMASKOUT Unmasks the specified output #MASKOUT Command The #MASKOUT command masks specific outputs preventing video from being displayed. Syntax: #maskout param1 Parameters: param1 Output [1 - 4] Notes: Set param1 to 0 to mask all outputs. #UNMASKOUT Command The #UNMASKOUT command unmasks specific outputs.
RS-232 COMMANDS System Commands Command Description #ACTIVEBOLO Activates the boot loader #FOOFF Disables the +5V of the DVI input channel #FOON Enables the +5V of the DVI input channel #STANDBY Enables Standby Mode #WAKEUP Disables Standby Mode #ACTIVEBOLO Command The #ACTIVEBOLO command activates the boot loader. See page 16 for more information. Syntax: #activebolo Parameters: None Notes: This command must be executed twice.
RS-232 COMMANDS #FOON Command The #FOON command enables the +5V of the DVI input channel. Syntax: #foon Parameters: None #STANDBY Command The #STANDBY command enables Standby Mode. In Standby Mode, the Splitter will only consume a maximum of 0.5 Watts. Syntax: #standby Parameters: None #WAKEUP Command The #WAKEUP command disables Standby Mode.
FIRMWARE UPDATE Firmware Update Procedure Any terminal emulation program can be used to perform the upgrade process. The instructions below is outlined for Windows® HyperTerminal. 1. Connect an RS-232 cable between the Splitter and the computer running the terminal program. Verify the correct serial port settings (see page 9). 2. Type the #activebolo command then press the [ENTER] key. Repeat Step 2.
RACK EAR INSTALLATION Installing the Rack Ears 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 Maximum Pixel Clock ......................................................................... 2 x 165 MHz Input DDC Signal ......................................................................... 5 Volts p-p (TTL) Input Video Signal .............................................................................. 1.2 Volts p-p Video Input Connector.................................. (1) DVI-I, 29-pin, female (digital only) Video Output Connectors.............................
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.
Rev A2 20600 Nordhoff St., Chatsworth CA 91311 1-800-545-6900 818-772-9100 www.gefen.com Pb This product uses UL listed power supplies. fax: 818-772-9120 support@gefen.
