Gefen
1:4 Splitter
for HDMI®
GTB-MHDMI1.3-144
GTB-MHDMI1.3-144-BLK
User Manual
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CONTENTS
1
2
3
4
5
6
7
7
8
9
10
Introduction
Operation Notes
Features
Panel Layout
Panel Descriptions
Connecting And Operating The GefenToolBox 1:4 Splitter for HDMI
EDID Management
EDID Mode Selection
Audio Channel Selection
External EDID Management
Internal EDID Specification
11 Fast Switching Technology
12 Wall Mounting Instructions
13 Specifications
14 Warranty
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INTRODUCTION
Congratulations on your purchase of the GefenToolBox 1:4 Splitter for HDMI.
Your complete satisfaction is very important to us.
About Gefen
We specialize in total integration for your home theater, while also focusing on
going above and beyond customer expectations to ensure you get the most from
your hardware. We invite you to explore our distinct product line. Please visit
or call us between the hours of 8:00 am and 5:00 pm Monday-Friday, Pacific
Standard Time for assistance with your A/V needs. We’ll be happy to assist you.
Why GefenToolBox?
The GefenToolBox line offers portable and easy-to-install solutions for common
A/V system integration setups using HDMI connectivity. GefenToolBox products
are wall-mountable and small in size. GefenToolBox products are easily
transported in the field and are ready for immediate and simple installations in
working environments. These products come finished in a glossy color to blend in
with either a white wall or black cabinet.
The GefenToolBox 1:4 Splitter for HDMI
The GefenToolBox 1:4 Splitter for HDMI sends one digital HDMI A/V source to
4 HDMI-compliant displays at the same time. It supports all HDMI equipment
such as Blu-ray and DVD players, satellite set-top boxes, and all HDMI displays.
Features include transmission of high-def deep color video resolutions up to
1080p@60 Hz combined with advanced lossless digital audio formats for pristine
sound reproduction.
How It Works
Connect your HDMI A/V source to the Splitter’s input using the supplied HDMI
cable. Connect up to four (4) HDMI-compliant displays to the Splitter’s four (4)
HDMI outputs. 3D content can be displayed when connecting a 3DTV and 3D
source. Apply power to sources and displays. The source signal will now be seen
on all four displays at the same time.
1
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OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE GEFENTOOLBOX 1:4 SPLITTER FOR HDMI
•
EDID contains the A/V capabilities of a display device in regards to video
resolutions and audio formats supported. This information is used by the
source device to determine the format of the A/V signal it outputs. The
GefenToolBox 1:4 Splitter for HDMI has advanced EDID management
features to ensure complete compatibility with all sources and display
devices. See pages 7-10 for more details.
2
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FEATURES
HDMI 1.3 Features
•
•
•
•
225 MHz (up to 12 bit YUV 444 @ 1080p)
Deep Color
Dolby TrueHD and DTS-HD Master Audio
Lip-Sync
Features
•
•
•
Simultaneously displays a single Hi Def source on up to four (4) HDTV
displays without signal loss.
Maintains high resolution video - beautiful, sharp HDTV resolutions up to
1080p and 1920x1200@60 Hz.
3DTV Pass-Through
•
•
•
Fast Switching Technology for quick and responsive HDMI signal routing.
Auto-EDID Management for rapid integration of sources and display devices.
Supports modern advanced digital audio formats including LPCM 7.1 audio,
Dolby Digital Plus, Dolby TrueHD, and DTS-HD Master Audio.
•
•
Supports the use of DVI sources and DVI displays with an HDMI-to-DVI
converter cable or adapter.
Input and output cables can be as long as 15 feet when using 8-bit or 12-bit
color. The length of input and output cables also depends on the quality of
cables used.
•
This product is HDMI-compliant and HDCP-compliant.
Package Includes
(1) GefenToolBox 1:4 Splitter for HDMI
(1) 6 ft. HDMI cable (M-M)
(1) 5V DC Locking Power Supply
(1) User Manual
3
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PANEL LAYOUT
1
2
3
7
5
4
6
4
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PANEL DESCRIPTIONS
1
2
HDMI Output Ports 1-4
Connect HDMI-compliant display device(s) to any of these output ports.
Audio Channel Selection Switch
This switch will modify the EDID to specify the number of supported audio
channels when using the INTERNAL EDID mode. This setting will not affect the
EDID information when using the EXTERNAL EDID mode.
3
EDID Mode Selection Switch
This switch will control the location of the EDID that will be sent to the source
device. The options are EXTERNAL and INTERNAL. Please see pages 7-11 for
more information.
4
5
USB Service Port
Mini-USB service port used for upgrading the firmware.
Locking HDMI Port
Connect an HDMI source device to this port. The signal from this port will be
replicated to all HDMI output ports. Please see the Features section on page 3
for supported HDMI 1.3 features.
6
7
5V DC Locking Power Receptacle
Connect the included 5V DC locking power supply between this receptacle and
a power source. Only use the power supply supplied with this unit. Screw the
locking power tip into the socket on the Splitter until it fits snugly.
Power Indicator LED
This LED will become active once the included 5V DC locking power supply has
been properly connected to the unit and a power source.
5
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CONNECTING AND OPERATING
THE GEFENTOOLBOX 1:4 SPLITTER FOR HDMI
How to Connect the GefenToolBox 1:4 Splitter for HDMI
1. Use the supplied HDMI cable to connect the source device to the HDMI input
port of the GefenToolBox 1:4 Splitter for HDMI.
2. Use additional user-supplied HDMI cables to connect up to 4 HDMI-
compliant displays to the output ports on the 1:4 Switcher for HDMI.
3. Connect the included 5V DC power supply to the power receptacle on the
Splitter.
4. Connect the other end of the power supply to an available power outlet.
How to Operate the GefenToolBox 1:4 Splitter for HDMI
The GefenToolBox 1:4 Splitter for HDMI does not require any configuration
to begin splitting the incoming HDMI input signal. However, depending on the
features required by the user, the EDID Mode and Audio Channel Selection
switches may need to be adjusted. See the following section for more
information on the usage of these switches.
Wiring Diagram for the GefenToolBox 1:4 Splitter for HDMI
6
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EDID MANAGEMENT
EDID Mode Selection
1. EXTERNAL MODE:
See page 9 for details on using the External EDID.
2. INTERNAL MODE:
In Internal EDID Mode, a generic EDID is used for all connected devices.
This is useful when sufficient EDID data is unavailable from display devices
or EDID-related problems are encountered. The generic EDID is compatible
with most A/V equipment on the market.
Set the EDID Mode Switch on the front panel to the INT position. This mode
uses a standard, pre-programmed EDID at the factory which is compatible
with most A/V display devices. All video resolutions and audio formats
specified in this EDID will be passed to the source device. For a complete
definition of the A/V formats in this internal EDID please see page 10.
NOTE: All other HDMI-capable devices/displays connected to the Output
ports MUST be compatible with at least one resolution/audio format
specified in this EDID. It is recommended to set a commonly supported
video resolution and audio format on the source device, to be shared by
all attached devices/displays. This is to ensure that a compatible signal is
output to all connected devices/displays.
7
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EDID MANAGEMENT
Audio Channel Selection
The GefenToolBox 1:4 Splitter for HDMI features a switch that will modify the
supported audio formats listed in the pre-programmed EDID. This feature is
useful for limiting the output of the source device to either 2 or multi-channel
audio formats.
NOTE: This selector switch will only affect the pre-programmed EDID in the
INTERNAL (INT) EDID Mode.
The GefenToolBox 1:4 Splitter for HDMI can use either of the following settings
for audio format support:
1. 2 Channel: This setting will limit the audio formats listed in the pre-
programmed EDID to 2 channel LPCM. For a full listing of the audio formats
in this mode please see page 10.
To use this mode, set the Audio Selection Switch on the front panel to the 2
CH position.
This mode is useful in scenarios where all output devices/displays are HDTV
monitors that only support 2 channel LPCM. This setting will ensure that all
connected devices will receive and produce sound.
2. Multi-Channel: This setting will enable all common audio formats in the pre-
programmed EDID. For a full listing of the audio formats in this mode please
see page 10.
To use this mode, set the Audio Selection Switch on the front panel to the
Multi CH position.
This mode is useful in scenarios where the output devices/displays are
varying devices (i.e. HDTV display and audio receivers). Please note that
sound may not be heard from all output devices/displays if a shared common
audio format is not used by the source device.
8
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EDID MANAGEMENT
External EDID Management
The GefenToolBox 1:4 Splitter for HDMI features EDID Management. Before the
source can send video or audio signals to the display, the source devices reads
the EDID (Extended Display Identification Data) of each device connected to
an output. The EDID contains information about what type of A/V data that the
source can send to each display.
GefenToolBox 1:4 Splitter for HDMI distributes a single source to multiple
output devices. This involves reading EDID data from more than one device.
Management of the EDID data is important to maintain compatibility between all
devices.
Display Connections
•
If a display is not connected to Output 1, then no EDID changes are made,
meaning that the previous EDID information will be used. This state will be
in effect until a display is connected to Output 1 and the Splitter is power-
cycled.
•
EDID is copied from Output 1 to all other outputs. The audio block will be
copied from Output 1. EDID-copying is performed only when the Splitter is
reset or power-cycled.
3DTV Support
•
3D signals are supported if a 3DTV is connected to Output 1.
Deep Color
•
Deep Color will be disabled if one of more other displays connected to the
Splitter do not support Deep Color.
9
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EDID MANAGEMENT
Internal EDID Specifications
The table below lists the settings that comprise the built-in Internal EDID data
structure:
Video Data Block
Audio Data Block
Speaker
xvYCC
Allocation
1080p@60Hz
2-channel:
2-channel:
xvYCC 709
xvYCC 601
1080p@50Hz
LPCM 2CH
Multi-channel:
FL/FR
1080i@60Hz (native)
1080i@50Hz
Multi-Channel:
LPCM 2CH
LPCM 8CH
AC-3 6CH
DTS 7CH
RLC/RRC
RL/RR
FC
LFE
Dolby Digital+ 8CH FL/FR
Dolby TrueHD 8CH
DTS-HD 8CH
MAT(MLP) 8CH
10
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FAST SWITCHING TECHNOLOGY
FAST SWITCHING TECHNOLOGY
Fast Switching Technology
Fast Switching Technology (FST) is a Gefen software implementation for
HDMI 1.3 products. FST was created to improve the inherited lengthy HDMI
authentication process, based on the HDMI and HDCP specifications.
FST provides quicker A/V source switching and greatly improves the overall A/V
system behavior and performance when more than one HDTV display is used in
the system setup.
FST allows connecting / disconnecting or turning ON / OFF of HDTV displays
without having these activities affect other Hi-Def sources routed to any other
HDTV display in the same system.
11
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WALL MOUNTING INSTRUCTIONS
The GefenToolBox 1:4 Splitter for HDMI should be mounted vertically in a wall or
cabinet with wood/drywall screws as shown in the diagram above. There should
be an inch or two of clearance between the edges of the unit and any walls or
vertical surfaces to allow for enough clearance for insertion and retraction of
cables at the HDMI connectors.
For installation on a drywall surface, use a #6 drywall screw. It is recommended
when installing on a drywall surface that studs be used to secure the Splitter
should undue stress be applied when connecting and disconnecting HDMI
cables.
12
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SPECIFICATIONS
Single Link Bandwidth ............................................................................. 225 MHz
Pixel Clock / Speed .................................................................................. 165 MHz
Maximum Video Resolution ................................... 1080p, 1920x1200@60Hz, 2K
Input Video Signal .............................................................................. 1.2 volts p-p
Input DDC Signal ......................................................................... 5 volts p-p (TTL)
HDMI Input Connector .......................................................... type A 19-pin, female
HDMI Output Connectors ..................................................... type A 19-pin, female
Power Indicator ........................................................................................ LED, red
EDID Mode Switch ....................................................................................... SPDT
Audio Mode Switch ....................................................................................... SPDT
Power Supply .............................................................................................. 5V DC
Power Consumption ........................................................................... 10 W (max.)
Dimensions ...................................................................... 3” W x 10.5” H x 0.75” D
Operating Temperature ............................................................................ 0 - 40 °C
Compliancy.............................US/EU Standards, HDMI 1.3, HDMI 1.2, HDCP 1.1,
DVI 1.0
Certifications.............................................................UL (power supply), RoHS, CE
Shipping Weight ............................................................................................ 3 lbs.
13
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Rev C2
1.1A
20600 Nordhoff St., Chatsworth CA 91311
1-800-545-6900 818-772-9100 fax: 818-772-9120
Pb
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