Gefen EXT-HDMI-242 User manual

2x2 HDMI
Switcher
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.
2x2 HDMI Switcher 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 2x2 HDMI Switcher
RMT2-IR Installation
IR Code Conflicts
Dip Switch Guidelines
RS-232 Interface
Specifications
Warranty
1
2
3
4
5
6
7
8
9
10

Congratulations on your purchase of the ex•tend•it 2x2 HDMI Switcher. 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 2x2 HDMI Switcher allows access to two HDTV devices, using two HDTV displays.
Both output displays will have mirrored images. Also included is a TOSLINK output that
will output the digital audio signal in audio form.
The ex•tend•it line offers solutions for Home Theater, AV installation, noise, space and
security concerns, 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 2x2 HDMI Switcher allows two HDTV HDMI devices to be switched easily
in to two HDTV HDMI compatible monitors or projectors. Simply connect your HDTV
displays to the Switcher’s display outputs. The 2x2 HDMI Switcher can also be placed
at the end of a long HDMI cable to regenerate the HDMI signal.
INTRODUCTION
1

FEATURES
Features
• Switches easily between any two HDMI sources
• Maintains 480p, 720p, 720i, and 1080i, 1080p resolutions
• Maintains highest HDMI single link video resolution
• Maintains highest HDMI digital audio signal
• Includes TOSlink output for easy hookup to digital audio systems
• Supports HDCP compliant devices
• Fully HDMI 1.2 compliant
• HDMI or DVI to HDMI cables are used to connect the inputs and switcher output
• Inputs can be switched with the IR remote control
• RS-232 Controllable
• Installs in seconds
Includes:
(1) 2x2 HDMI Switcher
(2) 6’ HDMI cables (M-M)
(1) 5VDC Power Supply
(1) RMT2-IR
2

PANEL DESCRIPTIONS
Connects to
5VDC power
supply
IR eye
Indicates if input 1
or 2 is selected
3
RS232
Controller
Port
HDMI In 1 HDMI Out 1HDMI In 2
IR
Extender
port
HDMI Out 2
TOSLINK
Optical Out

CONNECTING AND OPERATING THE 2x2 HDMI SWITCHER
How to Connect the 2x2 HDMI Switcher to your devices
1 Connect the supplied cables from the HDTV sources into the 2x2 HDMI Switcher inputs.
2Connect the cable from your display (monitor or projector) into the HDMI outs of the
2x2 HDMI Switcher.
3 Connect any Digital Audio System into the OPTICAL out of the 2x2 HDMI Switcher
3 Plug the 5VDC power supply into the 2x2 HD Switcher.
How to enable the TOSlink on the 2x2 HDMI Switcher
The TOSlink audio is only enabled if you are using an HDMI source and an HDMI
display, otherwise the source goes into DVI mode by reading the DVI display EDID. If
you are using a DVI display you will have to open the switcher box to access the dip
switches and flip dip switch #2 (refer to page 6) to enable the TOSlink audio out. If you
are using both an HDMI and DVI display, make sure you have the HDMI display on
output 1 in order to enable the TOSlink audio out.
How to Control the 2x2 HDMI Switcher
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.

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 underneath 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

7
DIP SWITCH GUIDELINES
Inside the 2X2 HDMI Switcher is a bank of Dip Switches. Below is a table describing
their functions. By default, all switches are set to the Off position.
Dip Switch # Name Description
1 Switching Delay Adds a 3 second delay to switching
2 On Board EDID Feeds a Generic HDMI EDID to all Inputs
3 IR Code Dip Switch Corresponds to Dip Switch 1 on RMT16-IR
4 IR Code Dip Switch Corresponds to Dip Switch 2 on RMT16-IR
5 Unused
6 Unused
7 Unused
8 Edge Select +Edge Pixels
How to open the 2x2 HDMI Switcher:
To access the dip switches, first remove the 2 hex nuts on the back of the unit (2 for
RS232 port). Remove the 5 Philips screws under the unit and the 4 screws on each
side of the unit. Now carefully remove the cover of the 2x2 HDMI Switcher.
2345678
1

RS-232 INTERFACE
8
Binary Table
ASCII Input Binary
1 1 0011 0001
2 2 0011 0010
Terminal Settings
Bits per second ...................................................................................................... 19200
Data bits ......................................................................................................................... 8
Parity ....................................................................................................................... None
Stop bits ..........................................................................................................................1
Flow Control ............................................................................................................ None

SPECIFICATIONS
9
Video Amplifier Bandwidth ................................................................................. 1.65 GHz
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 .............................................................................................. HDMI
Output Connector Type ............................................................................................HDMI
Output Audio Connector Type......................................................................... ...TOSLINK
Power Consumption ................................................................................ 15 Watts (max.)
Power Supply .......................................................................................................... 5VDC
Dimensions ......................................................................... 10.25”W x 1.125”H x 4.25”D
Shipping Weight ....................................................................................................... 6 Lbs

Gefen Inc. warrants the equipment it manufactures to be free from defects in material
and workmanship.
If equipment fails because of such defects and Gefen Inc. is notified within two
(2) year from the date of shipment, Gefen Inc. 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.
Equipment that fails under conditions other than those covered will be repaired at the
current price of parts and labor in effect at the time of repair. Such repairs are warranted
for ninety (90) days from the day of reshipment to the Buyer.
This warranty is in lieu of all other warranties expressed or implied, including without
limitation, any implied warranty or merchantability or fitness for any particular purpose,
all of which are expressly disclaimed.
1. Proof of sale may be required in order to claim warranty.
2. Customers outside the US are responsible for shipping charges to and from Gefen.
3. Copper cables are limited to a 30 day warranty and cable must be free from any
scratches, markings, and neatly coiled.
The information in this manual has been carefully checked and is believed to be
accurate. However, Gefen Inc. assumes no responsibility for any inaccuracies that may
be contained in this manual. In no event will Gefen Inc., be liable for direct, indirect,
special, incidental, or consequential damages resulting from any defect or omission
in this manual, even if advised of the possibility of such damages. The technical
information contained herein regarding 2x2 HDMI Switcher features and specifications
is subject to change without notice.
WARRANTY
10

*ma-hdmi-242*
20600 Nordhoff St., Chatsworth CA 91311
1-800-545-6900 818-772-9100 fax: [phone]
www.gefen.com [email protected]