Gefen Log Splitter GTB MHDMI13 144 User Manual

Gefen  
1:4 Splitter  
for HDMI®  
GTB-MHDMI1.3-144  
GTB-MHDMI1.3-144-BLK  
User Manual  
 
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 Specication  
11 Fast Switching Technology  
12 Wall Mounting Instructions  
13 Specications  
14 Warranty  
 
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, Pacic  
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 eld and are ready for immediate and simple installations in  
working environments. These products come nished 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
 
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
 
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
 
PANEL LAYOUT  
1
2
3
7
5
4
6
4
 
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 rmware.  
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 ts 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
 
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 conguration  
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
 
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 sufcient 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  
specied in this EDID will be passed to the source device. For a complete  
denition 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  
specied 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
 
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
 
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 Identication 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
 
EDID MANAGEMENT  
Internal EDID Specications  
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  
 
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 specications.  
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  
 
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  
 
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  
Certications.............................................................UL (power supply), RoHS, CE  
Shipping Weight ............................................................................................ 3 lbs.  
13  
 
14  
 
 
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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