Gefen ex tend it User manual

4x1 HD Digital
Audio Switcher
USER MANUAL
www.gefen.com

Technical Support:
Telephone [phone]
[phone]
Fax [phone]
Technical Support Hours:
9:00 AM to 5:00 PM Monday thru Friday.
Write To:
Gefen Inc.
C/O Customer Service
6265 Variel Ave.
Woodland Hills, CA91367-9897
Notice
Gefen Inc. reserves the right to make changes in the hardware, packaging and any
accompanying documentation without prior written notice.
4x1 HD Digital Audio Switcher is a trademark of Gefen Inc.
© 2006 Gefen Inc., All Rights Reserved
ASKING FOR ASSISTANCE

TABLE OF CONTENTS
Introduction
Features
Panel Descriptions
Connecting and Operating the 4x1 HD Digital Audio Switcher
RMT4-IR Installation
RS-232 Interface
Specifications
Warranty
1
2
3
4
5
6
7
8

Congratulations on your purchase of the ex•tend•it 4x1 HD Digital Audio 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 4x1 HD Digital Audio Switcher allow access to multiple HDTV devices, using a
single HDTV display.
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 4x1 HD Digital Audio Switcher allows four HDTV DVI devices to be switched easily
in to one HDTV DVI compatible monitor or projector. Simply connect your HDTV display
to the Switcher’s display output and your digital audio to the digital out. The 4x1 HD
Digital Audio Switcher can also be placed at the end of a long DVI cable to regenerate
the DVI signal.
Please Note:
This particular version only supports the video portion of the HDMI signal.
INTRODUCTION
1

FEATURES
Features
• Switches easily between any four HDTV sources
• Maintains 480p, 720p, 1080i, and 1080p resolutions
• Extends any DVI compliant device by regenerating the DVI signal
• Maintains highest DVI single link video resolution
• Optical TOSlink or S/PDIF digital audio switching
• Supports DDWG standard for DVI compliant monitors
• Supports HDCP compliant devices
• Optional RMT-4 remote control
• DVI to HDMI cables are used to connect the DVI inputs and HD Switcher input
• Installs in seconds
Includes:
4x1 HD Digital Audio Switcher
4x 6’ HDMI cables (m-m)
4x 6’ TOSlink cables
5V DC Power Supply
RMT4-IR
User's Manual
2

PANEL DESCRIPTIONS
3

Connecting and Operating the 4x1 HD Digital Audio Switcher
How to Connect the 4x1 HD Digital Audio Switcher to your devices
1 Connect the supplied cables from the HDTV sources into the 4x1 HD DigitalAudio
Switcher inputs.
2Connect the digital audio cables from your devices into the 4x1 HD DigitalAudio
Switcher inputs. Make sure the digital audio matches the digital video input.
3Connect the cable from your display (monitor or projector) into the HDMI Out of the
4x1 HD Digital Audio Switcher.
4 Connect your digital audio receiver to the 4x1 HD DigitalAudio Switcher output.
5 Plug the 5VDC power supply into the 4x1 HD Digital Audio Switcher.
How to Control the 4x1 HD Digital Audio Switcher
Use the RMT4-IR remote control to toggle between sources.
4

5
RMT4-IR Installation
1. Remove battery cover from the back of the RMT4-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 RMT4-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 RMT4-IR ships with two batteries. One battery is required for operation, the
second battery is complimentary.

RS-232 Interface
6
Binary Table
Input Binary
1 0011 0001
2 0011 0010
3 0011 0011
4 0011 0100
Terminal Settings
Bits per second ...................................................................................................... 19200
Data bits ......................................................................................................................... 8
Parity ....................................................................................................................... None
Stop bits ..........................................................................................................................1
Flow Control ............................................................................................................ None

SPECIFICATIONS
7
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
Video Output .................................................................. DVI-I 29 pin female (digital only)
Video Input ............................................................................ HDMI Type A 19 pin female
Digital Audio ........................................................... S/PDIF (digital coax), optical TOSlink
Power Supply ......................................................................................................... 5V DC
Power Consumption .................................................................................. 10 watts (max)
Dimensions ............................................................................ 4.625”D x 9.25”W x 1.25”H
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 one
(1) 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 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.
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 4x1 HD Digital Audio Switcher features and
specifications is subject to change without notice.
WARRANTY
8

*ma-HD-441a*
6265 Variel Avenue Woodland Hills, CA 91367
1-800-545-6900 818-884-6294 fax: [phone]
www.gefen.com [email protected]