Gefen HDMI-244 User manual

2x4 HDMI
Switcher/Splitter
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 PST.
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.
2x4 HDMI Switcher/Splitter is a trademark of Gefen Inc.
HDMI is a trademark of hdmi.org
© 2007 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE

TABLE OF CONTENTS
Introduction
Features
Panel Descriptions
Connecting and Operating the 2x4 HDMI Switcher/Splitter
RMT2-IR Installation
IR Code Conflicts
Dip Switch Guidelines
Specifications
Warranty
1
2
3
4
5
6
7
8
9

Congratulations on your purchase of the ex•tend•it 2x4 HDMI Switcher/Splitter. Your
complete satisfaction is very important to us.
Gefen’s line of HDTV switches, extenders, and splitters are designed to make yourA/V
equipment use more comfortable, more productive and less expensive.
The 2x4 HDMI Switcher/Splitter allows access to two HDTV devices, using up to four
HDTV displays. All output displays will have mirrored images.
The ex•tend•it line offers solutions for Home Theater, A/V installation, data center,
information distribution, conference room presentation, school and corporate training
environments.
Our Commitment
Gefen will always offer the finest quality product at the best possible price. Included in
that price is a lifetime support from a team of outstanding engineers.
The ex•tend•it 2x4 HDMI Switcher/Splitter allows two HDTV HDMI devices to be dis-
tributed easily in to four HDTV HDMI compatible monitors or projectors. Simply connect
your HDTV displays to the DA’s display outputs. The 2x4 HDMI Switcher/Splitter can
also be placed at the end of a long HDMI cable to regenerate the HDMI signal.
How It Works
You simply connect all your sources to the Switcher’s inputs. Then connect up to four
displays on the output ports. Once the sources, the Switcher and the display(s) are
powered and connected, you simply select which source you want to view using the IR
remote.
INTRODUCTION
1

FEATURES
Features
• Switches easily between any two DVI/HDMI sources
• Maintains 480i, 480p, 720p, 720i, and 1080i, 1080p resolutions
• 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 switcher output
• Inputs can be switched with the IR remote control.
• Installs in seconds
• Fully HDMI 1.3 compliant
Includes:
(1) 2x4 HDMI Switcher/Splitter
(2) 6’ HDMI cables (M-M)
(1) 5VDC Power Supply
(1) RMT2-IR
(1) Users Manual
2

PANEL DESCRIPTIONS
Connects to
5VDC power
supply
IR eye
Indicates which
input is selected
3
HDMI
In 1 HDMI
In 2
IR Extender
Port
HDMI
Out 1 HDMI
Out 2
Power LED
HDMI
Out 3 HDMI
Out 4

CONNECTING AND OPERATING 2x4 HDMI SWITCHER/SPLITTER
How to Connect the 2x4 HDMI Switcher/Splitter to your devices
1 Connect the supplied cables from the HDTV HDMI sources into the 2x4 HDMI Switcher/
Splitter inputs.
2Connect the cables from your displays (monitor or projector) into the HDMI outs of the
2x4 HDMI Switcher/Splitter.
3 Plug the 5VDC power supply into the 2x4 HDMI Switcher/Splitter.
How to Control the 2x4 HDMI Switcher/Splitter
Use the RMT2-IR remote control to toggle between sources.
4

5
RMT2-IR INSTALLATION
1. Remove battery cover from the back of the RMT2-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 RMT2-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 RMT2-IR ships with two batteries. One battery is required for operation, the
second battery is complimentary.
The optional IR extender allows you to
relocate your HDMI Switcher and still have
IR control of the HDMI Switcher

IR CODE CONFLICTS
How to Resolve IR Code Conflicts
There are matching pairs of dip switches underneath the Switcher unit and under the
remote battery cover. Switch 1 & 2 on the Remote and Switch 3 & 4 inside the unit are the
matching switches. These switches need to be matched for the remote to
communicate with the switcher. There are 4 possible sets of IR codes and at least one of
these sets should be able to resolve any IR conflicts with other home theater devices.
12
Remote Channel 1:
12
Remote Channel 2:
12
Remote Channel 3:
12
Remote Channel 4:
Remote
6
2:4 HDMI Internal Switches
Remote Channel 1:
Default
Remote Channel 4:
12345678
Remote Channel 3:
12345678
Remote Channel 2:
12345678
12345678

7
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. 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

SPECIFICATIONS
8
Video Amplifier Bandwidth...................................................................................2.25 GHz
Input Video Signal...........................................................................................1.2 volts p-p
Input DDC Signal......................................................................................5 volts p-p (TTL)
Single Link Range...............................................1080p/60 10 bit color depth, 1920x1200
HDMI Connector.................................................................................type A 19 pin female
Power Supply...........................................................................................................5V DC
Power Consumption....................................................................................10 watts (max)
Dimensions...................................................................................12”W x 1.25”H x 4.25”D
Shipping Weight.........................................................................................................6 lbs.