Gefen 6x2 HDMI User manual

6x2 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.
6x2 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
1 Introduction
2 Features
3 Front Panel Description
4 Back Panel Description
5 Connecting and Operating the 6x2 HDMI Switcher
6 RMT-6IR Installation
7 IR Code Configuration
8 EDID Management Feature
9 EDID Management Modes
10 RS-232 Serial Control
11 RS-232 Serial Control Commands
12 Rack Mount Diagram
13 Specifications
14 Warranty

Congratulations on your purchase of the Gefen 6x2 HDMI Switcher. Your complete sat-
isfaction 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 6x2 HDMI Switcher allows access to six HDTV devices, using two HDTV displays.
Both output displays will have mirrored images. Also included is a TOSLINK output that
will output the HDMI digital audio signal in Toslink digital audio form.
The Gefen line offers solutions for Home Theater, A/V 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 Gefen 6x2 HDMI Switcher allows six 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 6x2 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 six HDMI sources
• Maintains 480i, 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
• HDMI or DVI to HDMI cables are used to connect the inputs and switcher output
• Inputs can be switched with the IR remote control, contact closure controller or
through the RS232 connector.
• Installs in seconds
Includes:
(1) 6x2 HDMI Switcher
(6) 6’ HDMI cables (M-M)
(1) 24VDC Power Supply
(1) RMT-6IR
(1) Rack Ears
(1) Manual
2

FRONT PANEL DESCRIPTIONS
IR eye
Indicates if input
1,2,3,4,5, or 6 is
selected
3
LED Power
Indicator
IR Extender
Eye Port

BACK PANEL DESCRIPTIONS
Connects to
24VDC power
supply
4
RS232
Controller
Port
HDMI In 1
HDMI Out 1
HDMI In 2 HDMI Out 2
TOSLINK
Optical Out
HDMI In 3
HDMI In 4
HDMI In 5
HDMI In 6

CONNECTING AND OPERATING THE 6x2 HDMI SWITCHER
How to Connect the 6x2 HDMI Switcher to your devices
1 Connect the supplied cables from the HDTV sources into the 6x2 HDMI Switcher inputs.
2Connect the cable from your display (monitor or projector) into the HDMI outs of the
6x2 HDMI Switcher.
3 Connect any Digital Audio Receiver into the Toslink out of the 6x2 HDMI Switcher
3 Plug the 5VDC power supply into the 6x2 HD Switcher.
How to Control the 6x2 HDMI Switcher
Use the RMT-6IR remote control to toggle between sources.
5

6
RMT-6IR INSTALLATION
1. Remove battery cover from the back of the RMT-6IR 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 RMT-6IR 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 RMT-6IR ships with two batteries. One battery is required for operation, the
second battery is complimentary.

7
IR CODE CONFIGURATION
Why would I need to change the remote channel?
In some instances, the 6x2 Switcher for HDMI may use IR codes that conflict with
other IR remote control devices. The unit may switch inputs when another brand IR
remote control is used or the RMT-6IR may cause other brand IR controlled devices
to behave unexpectedly.
I am experiencing the issues listed above. What do I do?
In these cases it is recommended to change the IR channel that the RMT-6IR
remote control and the 6x2 Switcher for HDMI use. The IR channel is configured
independently on the RMT-6IR remote control and the 6x2 Switcher for HDMI but the
channel selection must match on both units for proper operation.
How Do I change the Remote Channel?
There are service DIP switches on the RMT-6IR remote control and also inside the
6x2 Switcher for HDMI. Use the diagrams below to locate and change the IR channel
to one that is not the default. Remember that the channel must match on both the
unit and remote control for successful operation.
2 DIP switch bank for IR channel configuration.
6x2 Switcher for HDMI
RMT-6IR Remote Control
Remote Channel 1:
Default
Remote Channel 4:
Remote Channel 1:
Default
1 2
Remote Channel 2:
1 2
Remote Channel 3:
1 2
Remote Channel 4:
1 2
12345678
Remote Channel 3:
12345678
Remote Channel 2:
12345678
12345678
Remove the battery cover on the rear side of the RMT-6IR remote control
to expose the DIP switches.
The IR channel DIP switches for the 6x2 Switcher for HDMI are located on an 8 bank DIP switch inside
of the unit and on its main-board. To open the unit, remove all screws on the underside and side of the
unit. Remove all HEX screws on the rear panel. This includes the screws above each HDMI port and on
each side of the RS-232 serial communications port. Carefully slide the unit apart. Locate DIP switches 3
and 4. Once adjustments are complete replace all screws and.

8
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. This information is called EDID
(Extended Display Information Data) and a source device can only accept and read one
EDID from a connected device/display. Likewise, the source an only output one resolution
for use by a connected device/display.
Why is EDID so important with the 6x2 Switcher for HDMI?
The 6x2 Switcher for HDMI is complex piece of technology that replicates and switches
between multiple inputs and outputs. Each connected source device will require one
EDID to read. EDID management is carefully handled by 6x2 Switcher for HDMI to
provide a single EDID for each source to read.
What options do I have to manage the EDID in the 6x2 Switcher for HDMI?
First, it is important to note that each source device can only output one video/audio
signal type. This includes resolutions and timings. When multiple devices/displays are
used, such as with the 6x2 Switcher for HDMI, it is important to use devices/displays that
have similar or compatible resolutions/features. This will ensure that the single video/
audio signal produced by the source device is accepted by all of the connected output
devices/displays.
The user has the option, through a combination of DIP switch settings within the 6x2
Switcher for HDMI, to choose how the unit will manage the EDID from multiple HDMI
devices/displays. Therefore the user has some control over the resolutions/features
that the source devices will output. The 6x2 Switcher for HDMI has a multiple EDID
management modes that will control how the EDID information from multiple devices/
displays are combined, ignored, and routed.
How do I change EDID modes in the 6x2 Switcher for HDMI?
There is an bank of 8 DIP switches located on the main-baord inside of the 6x2 Switcher
for HDMI. DIP switches 1, 2, 5, and 7 are used in different combinations to manage the
EDID modes.
TIP: EDID modes and IR code channels can also be managed via the RS-232 serial
communications port. For this to work, all DIP switches must be in the OFF position. This
is the factory default setting. If you wish to use this feature, please do not open the unit.
See page 10 and 11 for more information on the RS-232 serial communication features.
To access these DIP switches it will be required to open the unit. To do this, remove all
screws on the underside and side of the unit. Remove all HEX screws on the rear panel.
This includes the screws above each HDMI port and on each side of the RS-232 serial
communications port. Carefully slide the unit apart.

9
EDID MANAGEMENT MODES
EDID Modes
The diagram below illustrates the 8 DIP switch bank.
DIP SWITCH Function
1 EDID Mode
2 EDID Mode
3 IR Channel
4 IR Channel
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.
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 output 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 output devices.
EDID Mode 7 (Switch 1=ON Switch2=ON Switch5=ON)
• EDID is passed unmodified from the device connected to the first active
output port.
12345678
v. 2015

RS-232 SERIAL COMMUNICATION
What features are available via the RS-232 serial communications port?
The 6x2 Switcher for HDMI can accept commands through the RS-232 serial
communications port located on the rear panel. The current RS-232 control features
are:
• Switching/routing of inputs to outputs without the RMT-6IR remote control.
• Switch EDID management modes without opening the unit to physically modify DIP
switches.
• Change IR code channel without opening the unit to physically modify DIP switches.
(The IR code channel will still need to be manually modified on the RMT-6IR remote
control to match the code channel.)
How do I use these features?
These features were initially intended for utilization by custom installers in automated
setups. However, these features can be tested by using any Windows PC with the
Hyperterminal program.
What pins are used for communication with the 6x2 Switcher for HDMI?
Only pins 2 (Receive), 3 (Transmit), and 5 (Ground) are used for communication. A
null-modem adapter should not be used with this product.
12345
6789
12345
6789
Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface
What are the communication port settings?
Bits per second ................................................................................................. 19200
Data bits .................................................................................................................... 8
Parity .................................................................................................................. None
Stop bits .....................................................................................................................1
Flow Control ....................................................................................................... None
10

11
RS-232 SERIAL COMMUNICATION COMMANDS
Switching/Routing Binary Table
ASCII RMT-6IR
Button Binary
1 1 0011 0001
2 2 0011 0010
3 3 0011 0011
4 4 0011 0100
5 5 0011 0101
6 6 0011 0110
EDID Management Modes
All DIP switches inside the unit must be in their default OFF position. Use theASCII
commands below to change the EDID modes. For a description of each mode please
see page 9.
ASCII EDID Mode
m0 0
m1 1
m2 2
m3 3
m4 4
m5 5
m6 6
m7 7
IR Remote Channel Configuration
All DIP switches inside the unit must be in their default OFF position. Use theASCII
commands below to change the IR code channel. Please ensure that the IR remote
channel on the RMT-6IR matches any channel that is set by these commands. For a
description of the IR code channel configuration please see page 7.
ASCII Remote Channel
r1 1
r2 2
r3 3
r4 4

6x2 HDMI SWITCHER RACK MOUNT DIAGRAM
12

SPECIFICATIONS
13
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 ........................................................................................................ 24VDC
Dimensions ............................................................................... 17”W x 1.75”H x 5.875”D
Shipping Weight ....................................................................................................... 8 Lbs