® 4x2 Switcher for HDMI EXT-HDMI-422 USER'S MANUAL www.gefen.
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 through Friday PST 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. 4x2 Switcher for HDMI is a trademark of Gefen, LLC HDMI is a trademark of hdmi.
TABLE OF CONTENTS 1 Introduction 2 Features 3 Panel Descriptions 4 Connecting and Operating the 4x2 Switcher for HDMI 5 RMT-4IR Installation 6 IR Code Configuration 7 EDID Management Feature 8 EDID Management Modes 9 RS-232 Serial Communication 10 RS-232 Serial Communication Commands 11 Specifications 12 Warranty
INTRODUCTION Congratulations on your purchase of the Gefen 4x2 Switcher for HDMI. Your complete satisfaction is very important to us. Gefen’s line of HDTV switches, extenders, and splitters are designed to make your A/V equipment use more comfortable, more productive and less expensive. The 4x2 Switcher for HDMI allows access to four HDTV devices, using two HDTV displays. Both output displays will have mirrored images. Also included is a SPDIF output that will output the digital audio signal in audio form.
FEATURES Features • Switches easily between any four HDMI sources • Maintains 480i, 480p, 720p, 720i, and 1080i, 1080p resolutions • Maintains highest HDMI single link video resolution • Maintains highest HDMI digital audio signal • Includes SPDIF output for easy hookup to digital audio systems • Supports HDCP compliant devices • HDMI or DVI to HDMI cables are used to connect the inputs and switcher output • Inputs can be switched with the IR remote control, contact closure controller or through the RS232 c
HDMI In 1 HDMI In 2 HDMI In 3 Indicates which input is selected HDMI In 4 RS232 Controller Port HDMI Out 1 IR eye IR Extender Port HDMI Out 2 SPDIF Out Connects to 5VDC power supply Power LED PANEL DESCRIPTIONS 3
CONNECTING AND OPERATING THE 4x2 Switcher for HDMI How to Connect the 4x2 Switcher for HDMI to your devices 1 Connect the supplied cables from the HDTV HDMI sources into the 4x2 Switcher for HDMI inputs. 2 Connect the cables from your displays (monitor or projector) into the HDMI outs of the 4x2 Switcher for HDMI. 3 Connect any Digital Audio System into the SPDIF OUT of the 4x2 Switcher for HDMI 4 Plug the 5VDC power supply into the 4x2 Switcher for HDMI.
RMT-4IR INSTALLATION 1. Remove battery cover from the back of the RMT-4IR remote. 2. Verify that dip switches 1 & 2 are in the down (OFF) position. 3. Insert the battery, hold the battery so that you can see the positive side facing up. The side that is not marked must be facing down. 4. Test the RMT-4IR remote by pressing ONLY one button at a time. The indicator light on the remote will flash once each time you press a button.
IR CODE CONFIGURATION Why would I need to change the remote channel? In some instances, the 4x2 Switcher for HDMI may use IR codes that conflict with other IR remote control devices. The unit may switch inputs when another brand IR remote control is used or the RMT-4IR may cause other brand IR controlled devices to behave unexpectedly. I am experiencing the issues listed above.
EDID MANAGEMENT FEATURE EDID. What is it and what is it used for? Under normal circumstances, an source device (digital and analog) will require information about a connected device/display to assess what resolutions and features are available. The source can then cater its output to send only resolutions and features that are compatible with the attached device/ display.
EDID MANAGEMENT MODES v. 2015 EDID Modes The diagram below illustrates the 8 DIP switch bank. 1 2 3 4 5 6 7 8 DIP SWITCH Function 1 EDID Mode 2 EDID Mode 3 IR Channel 4 IR Channel 5 EDID Mode 6 N/A 7 EDID Mode 8 N/A Use DIP switches 1, 2, 5, and 7 to select the desired EDID management mode. EDID Mode 0 (Switch 1=OFF Switch2=OFF Switch5=ON) • Edid is copied from the device connected to the first active hdmi output port. • All features newer that HDMI 1.2 are cleared.
RS-232 SERIAL COMMUNICATION What features are available via the RS-232 serial communications port? The 4x2 Switcher for HDMI 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-4IR remote control. • Switch EDID management modes without opening the unit to physically modify DIP switches.
RS-232 SERIAL COMMUNICATION COMMANDS Switching/Routing Binary Table ASCII 1 2 3 4 RMT-4IR Button 1 2 3 4 Binary 0011 0001 0011 0010 0011 0011 0011 0100 EDID Management Modes All DIP switches inside the unit must be in their default OFF position. Use the ASCII commands below to change the EDID modes. For a description of each mode please see page 8.
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 ......................................................................... ...1080p / 1920 x 1200 Input Connector Type ..
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*ma-HDMI-442* Rev X1 20600 Nordhoff St, Chatsworth CA 91311 1-800-545-6900 818-772-9100 www.gefen.com Pb fax: 818-772-9120 support@gefen.
