1:8 Splitter for
HDMI® with FST
GTB-HDFST-148
GTB-HDFST-148-BLK
User Manual
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CONTENTS
1
Introduction
2
Operation Notes
Features
3
4
Panel Layout
Panel Descriptions
5
6
Connecting And Operating The GefenToolBox 1:8 Splitter for HDMI with FST
EDID Management
7
7
Understanding EDID
8
EDID Mode Selection
9
Audio Channel Selection
10
11
External EDID Management
Internal EDID Specifications
12 Fast Switching Technology
13 Wall Mounting Instructions
14 Specifications
15 Warranty
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INTRODUCTION
Congratulations on your purchase of the GefenToolBox 1:8 Splitter for HDMI with
FST. 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 effective 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 deployment in working
environments behind the scenes. These products come finished in a glossy color
to blend in with either a white wall or black cabinet.
The GefenToolBox 1:8 Splitter for HDMI with FST
The GefenToolBox 1:8 Splitter for HDMI with FST sends one digital Hi-Def A/V
source to up to 8 HDTV displays at the same time. It works with any Hi-Def
source that needs to be connected to an HDTV display, supporting Deep Color
with resolutions up to 1080p Full HD and digital audio formats such as Dolby
TrueHD and DTS HD Master Audio.
How It Works
Connect the Hi-Def source to the Splitter’s input using the supplied HDMI cable.
Connect up to eight (8) HDTV displays to the Splitter’s eight (8) HDMI outputs.
Apply power to sources and displays. The source signal will now be seen on all
eight (8) displays at the same time.
1
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OPERATION NOTES
READ THESE NOTES BEFORE INSTALLING OR OPERATING
THE GEFENTOOLBOX 1:8 SPLITTER FOR HDMI WITH FST
•
•
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 1:8 Splitter for HDMI with FST has advanced EDID
management features to ensure complete compatibility with all sources and
display devices. See pages 7-11 for more details.
The GefenToolBox 1:8 Splitter for HDMI with FST detects the presence of
Deep Color automatically and disables Deep Color EDID features across
all outputs if any connected device or display is not capable of Deep Color.
This automatic behavior insures compatibility among all output devices in a
mixed-device environment. This feature cannot be disabled.
2
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FEATURES
Supported HDMI 1.3 Features
•
•
•
•
225 MHz (up to 12 bit YUV 444 @ 1080p)
Deep Color
Dolby TrueHD and DTS-HD Master Audio
Lip Sync
General Features
•
Simultaneously displays a single Hi-Def source on up to 8 HDTV displays
without signal loss.
•
Maintains high resolution video - beautiful, sharp HDTV resolutions up to
1080p Full HD, 1920x1200@60 Hz, and 2K.
•
•
•
3DTV Pass-Through
EDID Management for rapid integration of sources and display devices.
Fast Switching for quick and responsive HDMI signal routing. See page 12
for details.
•
•
•
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 up to 15 feet in length can be used when using
8-bit or 12-bit color. Extension distance is dependent upon the quality of the
cables being used.
•
•
Locking HDMI connections.
This product is HDMI-compliant and HDCP-compliant.
Package Includes
(1) GefenToolBox 1:8 Splitter for HDMI with FST
(1) 6-foot Locking HDMI cable (M-M)
(1) 5V DC Locking Power Supply
(1) User Manual
3
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PANEL LAYOUT
1
2
3
4
8
5
6
7
4
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PANEL DESCRIPTIONS
1
2
3
HDMI Output Ports 1-8
Connect HDMI-compliant display device(s) to any of these output ports.
Fast / Slow Switch
Switches between Fast and Slow Switching. See page 12 for more information.
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.
4
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. See pages 7-11 for more
information.
5
6
7
8
USB Service Port
Mini-USB service port used for upgrading the firmware.
HDMI Input Port
Connect HDMI source devices to these ports.
5V DC Power Input Receptacle
Connect the included 5V DC Locking Power Supply to this receptacle.
Power Indicator LED
This LED will become active once the included 5V DC power supply has been
properly connected to the unit and a power source.
5
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CONNECTING AND OPERATING THE
GEFENTOOLBOX 1:8 SPLITTER FOR HDMI WITH FST
How to Connect the GefenToolBox 1:8 Splitter for HDMI with FST
1. Use the supplied HDMI cable to connect a Hi-Def source device to the HDMI
input port of the GefenToolBox 1:8 Splitter for HDMI with FST.
2. Use additional user supplied HDMI cables to connect up to 8 HDTV displays
to the output ports on the 1:8 Switcher for HDMI with FST.
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 1:8 Splitter for HDMI with FST
The GefenToolBox 1:8 Splitter for HDMI with FST 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 1:8 Splitter for HDMI with FST
Gefen
HDMI CABLE
HDMI Display
HDMI Source
HDMI Display
HDMI Display
HDMI Splitter
HDMI Display
HDMI Display
HDMI Display
HDMI Display
HDMI Display
GTB-HDFST-148
6
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EDID MANAGEMENT
Understanding EDID
The GefenToolBox 1:8 Splitter for HDMI with FST features automatic and manual
EDID adjustments to maximize compatibility of all attached devices. First it is
necessary to understand EDID and what it is used for.
EDID. What is it and what is it used for?
Under normal circumstances, analog (i.e. VGA computer) and digital (i.e. Blu-ray
player) source devices will require information about a connected device/display
to assess what resolutions and features are compatible. This required information
is read from a standardized file called the EDID (Extended Display Information
Data). Almost all types of output devices/displays (computer monitor, HDTV, A/V
receiver) will carry and transmit its EDID to a connected source. The source will
then read this EDID file and make the necessary adjustments to ensure that only
compatible features are released to the device/display. A source can only accept
and read one EDID from a connected device/display. Likewise, the source can
only output one resolution and audio type for a connected device/display to use.
Why is EDID so important with the GefenToolBox 1:8 Splitter for HDMI with
FST?
The GefenToolBox 1:8 Splitter for HDMI with FST is a complex piece of
technology that replicates a single input signal to multiple outputs. The single
source device will require one EDID to read. Multiple devices/displays can be
connected to the outputs on the GefenToolBox 1:8 Splitter for HDMI with FST,
each with its own EDID, so management of this information is key to ensure that
maximum compatibility is maintained between all devices.
What options do I have to manage the EDID in the GefenToolBox 1:8
Splitter for HDMI with FST?
It is important to understand that the EDID contains much more than just listings
of supported resolutions and audio formats. However, resolutions and audio
formats are the two key types of information that a user will need to understand
how to use these EDID management functions.
Common problems that a user may encounter while using a splitter can be:
1. Video may not be visible on all output devices/displays.
2. Audio may not be heard on all output devices/displays.
These symptoms usually arise from video resolution / audio format
incompatibilities between the devices / displays connected to the splitter.
The GefenToolBox 1:8 Splitter for HDMI with FST can use one of two methods
to acquire and retransmit an EDID to the A/V source device telling it about
the kind of output devices that are connected to the Splitter, thus curing the
incompatibility.
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EDID MANAGEMENT
EDID Mode Selection
1. EXTERNAL MODE:
To use this mode, set the EDID Mode Switch on the front panel to the EXT
position. In External EDID mode, the Splitter directly retrieves EDID data
from each connected A/V display device and builds a new EDID created
from the highest common video resolution that all display devices can use
together and the highest audio capability. This new EDID is sent back to the
source device.
If sufficient EDID data is unavailable from external display devices or EDID-
related problems are encountered, Internal EDID Mode should be used to
provide a single compatible EDID for all connected devices.
2. INTERNAL MODE:
To use this mode, set the EDID Mode Switch on the front panel to the INT
position. This mode will use a preset EDID that is stored in the GefenToolBox
1:8 Splitter for HDMI with FST from the factory. This pre-programmed
standard EDID data structure is compatible with most A/V display devices.
All resolutions and audio formats specified in this EDID will be passed to the
source device. For a complete listing of the resolutions and audio formats
listed in this EDID please see page 11.
NOTE: 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, on the source device, a common resolution
and audio format shared by all attached devices/displays. This is to ensure a
compatible signal is output to all connected devices/displays.
8
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EDID MANAGEMENT
Audio Channel Selection
The GefenToolBox 1:8 Splitter for HDMI with FST 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 1:8 Splitter for HDMI with FST 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 11.
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 11.
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 (e.g. 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.
9
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EDID MANAGEMENT
External EDID Management
The 1:8 Splitter for HDMI with FST 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.
The 1:8 Splitter for HDMI with FST 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.
10
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EDID MANAGEMENT
Internal EDID Specifications
The table below lists the settings that comprise the built-in Internal EDID data
structure:
Audio Data Block
Speaker Allocation
Video Data Block
1080p@60Hz
2-channel:
2-channel:
FL/FR
1080p@50Hz
LPCM 2CH
Multi-channel:
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
11
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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 inherent 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.
FAST MODE:
Setting the Splitter to FAST mode will improve performance when connecting /
disconnecting Hi-Def sources, and powering ON / OFF HDTV displays.
NOTE: When switching from SLOW mode to FAST mode, the HDTV displays
connected to the Splitter will blink momentarily.
SLOW MODE:
When set to SLOW mode, the Splitter will follow the standard authentication
process, based on the HDMI and HDCP specifications. SLOW mode is
recommended when the source does not support multiple devices.
12
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WALL MOUNTING INSTRUCTIONS
The GefenToolBox 1:8 Splitter for HDMI with FST 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.
13
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SPECIFICATIONS
Single Link Bandwidth ............................................................................. 225 MHz
Pixel Clock / Speed .................................................................................. 165 MHz
Maximum Video Resolution ......................................... 1080p, 1920x1200@60Hz
with 12-bit Deep Color
Input Video Signal .............................................................................. 1.2 volts p-p
Input DDC Signal ......................................................................... 5 volts p-p (TTL)
HDMI Connectors................................... type A 19 pin female; (1) input, (8) output
LED Indicator: (Power)................................................................................ (1) Red
EDID Mode Switches (2)...................................... Audio Channels, INT/EXT Mode
Power Supply .............................................................................................. 5V DC
Power Consumption ............................................................................. 10W (max)
Dimensions ............................................................................. 3”W x 10½”H x ¾”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.
14
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Rev B1
1.5S
20600 Nordhoff St., Chatsworth CA 91311
1-800-545-6900 818-772-9100 fax: 818-772-9120
Pb
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