Gefen EXT-HDMI-444 User manual

4x4 HDMI
Matrix
USER MANUAL
www.gefen.com

Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday.
Write To:
Gefen Inc.
C/O Customer Service
20600 Nordhoff St.
Chatsworth, CA 91311
www.gefen.com
[email protected]
Notice
Gefen Inc. reserves the right to make changes in the hardware, packaging and any
accompanying documentation without prior written notice.
The 4x4 HDMI Matrix is a trademark of Gefen Inc.
© 2007 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE

TABLE OF CONTENTS
Introduction / Operation Notes
Features
Panel Layout
Using the 4x4 HDMI Matrix
RMT16-IR Installation
Dip Switch Guidelines
IR Codes
RS-232 Interface
4x4 HDMI Matrix Rack Mount Diagram
Specifications
Terminology
Warranty
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5
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INTRODUCTION
Thank you for purchasing the 4x4 HDMI Matrix.
The 4x4 HDMI Matrix switches four HDTV sources to any four HDMI displays.
The 4x4 HDMI Matrix switcher has four HDMI inputs and four HDMI outputs. Matrix input
#1 and the HDMI port of HDTV source #1 connects using a male to male HDMI cable. The
HDMI port of HDTV source #2 connects to HDMI input #2. The HDMI port of HDTV source
#3 connects to HDMI input #3. The HDMI port of HDTV source #4 connects to HDMI input
#4. There are four (4) HDMI outputs connecting to four (4) different displays.
Note: The switching is done by using either the RMT-16-IR remote control or through the
RS232 port. The 4x4 HDMI Matrix is rack mountable. Any HDTV with DVI inputs can be
connected to the HDMI outputs of the matrix by using a DVI to HDMI adapter if the cable
used is DVI.
1
OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING
OR OPERATING THE 4X4 HDMI MATRIX
• You should connect all the cables and power supply prior to connecting power to the
HDTV sources and 4x4 HDMI Matrix.
• When powering the sources, the display needs to point to the source input.
• The 4x4 HDMI Matrix is housed in a metal box for better RF shielding.
• The 4x4 HDMI Matrix works with all DVI and HDMI displays.
• The 4x4 HDMI Matrix supports both AUDIO and VIDEO signals.
• The 4x4 HDMI Matrix is fully HDCP compliant.

2
FEATURES
Features
• Allows any HDMI display to view any source at any time
• Allows any source to be displayed on multiple displays at the same time
• Maintains resolutions up to 1080p, 2K, and 1920x1200
• Maintains highest HDMI single link video resolution
• Maintains highest HDMI digital audio signal
• Supports HDCP compliant devices
• HDMI or DVI to HDMI cables are used to connect the inputs and the matrix output
• Each display's inputs can be switched with the IR remote control or through RS232
Includes:
(1) 4x4 HDMI Matrix
(4) HDMI 6 Cables (M-M)
(1) 24VDC Power Supply
(1) User Manual
(1) RMT-16IR Remote Control
(1) Rack Ears

PANEL LAYOUT
3
Display 1 LED
Indicator
Front Panel
RS232 Controller Port
Display 2 LED
Indicator Display 3 LED
Indicator Display 4 LED
Indicator
IR Sensor
IR Extender Eye Port Power Indicator
Back Panel
Connects to 24VDC
Power Supply
HDMI Inputs HDMI Outputs

Connect all the sources to the HDMI inputs on the 4x4 HDMI Matrix, using the
supplied cables.
Connect the HDMI/DVI displays to the outputs on the 4x4 HDMI Matrix.
Connect the 24VDC power supply to the 4x4 HDMI Matrix
Controlling the 4x4 HDMI Matrix using the RMT16-IR:
Pressing Buttons... Switches...
1-4 Display 1 to view Source 1, 2, 3, or 4
5-8 Display 2 to view Source 1, 2, 3, or 4
9-12 Display 3 to view Source 1, 2, 3, or 4
13-16 Display 4 to view Source 1, 2, 3, or 4
USING THE 4X4 HDMI MATRIX
1
2
3
4
4

5
RMT16-IR INSTALLATION
1. Remove battery cover from the back of the RMT16-IR 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 RMT16-IR remote by pressing ONLY one button at a time. The indicator light
on the remote will flash once each time you press a button. WARNING: Do not press
multiple buttons simultaneously and do NOT press buttons rapidly. These actions will
cause the remote to reset and steps 1-4 will have to be repeated.
Note: The RMT16-IR ships with two batteries. One battery is required for operation, the
second battery is complimentary.

6
DIP SWITCH GUIDELINES
Extended display identification data (EDID) is a data structure provided by a display to
describe its capabilities to any source that asks for it. The EDID includes manufacturer
name, product type, timings supported by the display, display size, luminance data, (for
digital displays only) pixel mapping data, supported audio channels and formats. This
information is used by the source to cater its output to resolutions and audio formats
that are supported by the display.
Additional EDID modes are available and configured using a combination of dip
switches 1, 2, and 5. Please refer below for the different EDID modes.
To access the Dip Switches, remove all screws from the bottom and sides of the Gefen
unit. Remove the hex screw heads from each side of the RS-232 port and above each
HDMI connector. Carefully slide the unit apart. The 8 Bank of Dip Switches are located
on the main PCB. Once adjustments are complete, slide the unit back together and
replace all removed screws.
EDID Mode 0 (Switch 1=OFF Switch2=OFF Switch5=ON)
-EDID is copied from the first HDMI port
EDID Mode 1 (Switch 1=ON Switch2=OFF Switch5=ON)
-Same as Mode 0 and adds basic audio support
EDID Mode 2 (Switch 1=OFF Switch2=ON Switch5=ON)
-Same as Mode 0 and adds full audio support
EDID Mode 3 (Switch 1=ON Switch2=ON Switch5=OFF)
-EDID is generated based on the common video and audio features of all of the
connected devices
EDID Mode 4 (Switch 1=OFF Switch2=ON Switch5=OFF)
-Same as Mode 3 and adds basic audio support
EDID Mode 5 (Switch 1=ON Switch2=OFF Switch5=OFF)
-Same as Mode 3 and adds full audio support
EDID Mode 6 (Switch 1=OFF Switch2=OFF Switch5=OFF) DEFAULT
-EDID is generated based on the common video features of all of the connected
devices and the combined audio features of all of the connected devices
DIP SWITCH
EDID GUIDE

7
IR CODES
In the event of IR conflicts, please do the following:
1. Remove the battery cover from the back of the RMT16-IR remote.
2. Locate the Dip Switches above the batteries
3. Switch the Dip Switches on the RMT16-IR to any of the combinations pictured below.
4. Dip Switches 1 and 2 in the RMT16-IR correspond with Dip Switches 3 and 4 inside
the 4x4 HDMI Matrix respectively. Switch the switches inside the 4x4 HDMI Matrix to
match the same Remote Channel as the RMT16-IR. The 4x4 Matrix is now set to a new
IR Code.
12
Remote Channel 0:
12
Remote Channel 1:
12
Remote Channel 2:
12
Remote Channel 3:

RS-232 INTERFACE
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Binary Table
ASCII Corresponding
RMT16-IR
Button
Binary ASCII Corresponding
RMT16-IR
Button
Binary
1 1 0011 0001 9 9 0011 1001
2 2 0011 0010 a 10 0110 0001
3 3 0011 0011 b 11 0110 0010
4 4 0011 0100 c 12 0110 0011
5 5 0011 0101 d 13 0110 0100
6 6 0011 0110 e 14 0110 0101
7 7 0011 0111 f 15 0110 0110
8 8 0011 1000 g 16 0110 0111
RS232 Settings
Bits per second ...................................................................................................... 19200
Data bits ......................................................................................................................... 8
Parity ....................................................................................................................... None
Stop bits ..........................................................................................................................1
Flow Control ............................................................................................................ None
Additional control of the EDID modes and IR channel are possible using the RS-232
interface. For any of these modes to be successfully written to the EEPROM, all Dip
Switches must be in the OFF position.
OK is printed out on screen when a mode has successfully been changed.
ASCII EDID Mode
m0 0
m1 1
m2 2
m3 3
m4 4
m5 5
m6 6
ASCII Remote Channel
r1 1
r2 2
r3 3
r4 4

4x4 HDMI MATRIX RACK MOUNT DIAGRAM
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Video Amplifier Bandwidth ................................................................................ 1.65 Gbps
Input Video Signal ......................................................................................... 1.2 volts p-p
Input DDC Signal .................................................................................... 5 volts p-p (TTL)
Single Link Range .............................................................................1080p / 1920 x 1200
HDMI Input/Output Connector ........................................................ Type A 19-pin Female
Remote Control Port ............................................................ RS-232 Female, Mini-Stereo
Power Consumption .................................................................................. 60 watts (max)
Power Supply ....................................................................................................... 24V DC
Dimensions ............................................................................ 17” W x 1.75” H x 5.875” D
Shipping Weight ..................................................................................................... 10 lbs.
SPECIFICATIONS
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DDC
Short form for Display Data Channel. It is a VESA standard for communication between
a monitor and a video adapter. Using DDC, a monitor can inform the video card about its
properties, such as maximum resolution and color depth. The video card can then use
this information to ensure that the user is presented with valid options for configuring the
display.
DDWG
Digital Display Working Group DDWG are the creators of the DVI specification.
DVI
Digital Visual Interface. Connection standard developed by Intel for connecting computers
to digital monitors such as flat panels and DLP projectors.Aconsumer electronics version,
notnecessarilycompatiblewith thePC version,is usedas aconnection standardfor HDTV
tuners and displays. Transmits an uncompressed digital signal to the display. The latter
version uses HDCP copy protection to prevent unauthorized copying.
HDCP
High-Bandwidth Digital Content Protection. Created by Intel, HDCP is used with HDTV
signals over DVI and HDMI connections and on D-Theater D-VHS recordings to prevent
unauthorized duplication of copy written material.
HDMI
TheHigh-Definition Multi-mediaInterface (HDMI)isanindustry-supported,uncompressed,
all-digitalaudio/video interface.HDMI providesan interfacebetween anycompatible digital
audio/video source, such as a set-top box, DVD player, andA/V receiver and a compatible
digital audio and/or video monitor, such as a digital television (DTV).
HDTV
High-DefinitionTelevision.Thehigh-resolutionsubsetof ourDTVsystem.TheATSCdefines
HDTVasa 16:9imagewithtwicethehorizontal andverticalresolutionof ourexistingsystem,
accompanied by 5.1 channels of Dolby Digital audio. The CEAdefines HDTV as an image
with 720 progressive or 1080 interlaced active (top to bottom) scan lines. 1280:720p and
1920:1080i are typically accepted as high-definition scan rates.
RS-232
RecommendedStandard 232.This isthe defacto standardfor communication throughPC
serial ports. It can refer to cables and ports that support the RS232 standard.
VESA
VideoElectronicStandardsAssociation,a consortiumof manufacturersformedtoestablish
andmaintain industrywide standardsforvideocardsand monitors.VESAwas instrumental
in the introduction of the Super VGA and Extended VGA video graphics standards with
a refresh rate of 70 Hz, minimizing flicker and helping to reduce user eyestrain and
fatigue.
TERMINOLOGY
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