:4 Distribution Amplifier For d Model # EXT-HDMI-144 USER 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 Inc. C/O Customer Service 20600 Nordhoff St. Chatsworth, CA 91311 support@gefen.com www.gefen.com Notice Gefen Inc. reserves the right to make changes in the hardware, packaging and any accompanying documentation without prior written notice. 1:4 Distribution Amplifier For HDMI is a trademark of Gefen Inc.
TABLE OF CONTENTS 1 Introduction / Operation Notes 2 Features 3 Panel Descriptions 4 Connecting and Operating the 1:4 HDMI Distribution Amplifier For HDMI 5 EDID Management Feature 6 EDID Management Modes 7 Specifications 8 Warranty
INTRODUCTION The Gefen 1:4 HDMI Distribution Amplifier is the perfect solution for anyone who needs to send one source of digital high definition video to multiple displays at the same time. It supports all HDMI equipment, such as DVD players and satellite set top boxes and all HDMI displays. In operation, the digital video source is connected to the distribution amplifier’s one input while four HDMI outputs are available to be used in part or in full.
FEATURES Features • Connects up to four HDMI/DVI* displays at the same time to one video source • Allows simultaneous display • Supports resolutions up to 1080p, 2K, and 1920 x 1200 • Extends the range of HDMI compliant devices by equalizing and re-clocking the HDMI signal • HDMI/HDCP compliant Includes: (1) 1:4 Distribution Amplifier For HDMI (1) 6 Ft HDMI cable (M-M) (1) 5V DC Power Supply (1) Set of Rack Ears (1) Users Manual *When used with a HDMI to DVI adapter 2
HDMI Input HDMI Output 1* HDMI Output 2 Back Panel Front Panel HDMI Output 3 HDMI Output 4 5V DC Power Input Power LED Indicator PANEL DESCRIPTIONS 3
CONNECTING AND OPERATING THE 1:4 DISTRIBUTION AMPLIFIER FOR HDMI How to Connect the 1:4 Distribution Amplifier For HDMI 1 Connect the supplied cable from the HDTV HDMI source into the HDMI input port of the 1:4 Distribution Amplifier For HDMI. 2 Connect the user supplied cable(s) from your display(s) into the HDMI output port(s) of the1:4 Distribution Amplifier For HDMI. 3 Plug the 5V DC power supply into the 1:4 Distribution Amplifier For HDMI.
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 DIP SWITCH Function 1 EDID Mode 2 EDID Mode 3 N/A 8 4 N/A 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.
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 .........................
