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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 Identifi cation 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.

Summary of Contents for Toolbox GTB-MHDMI1.3-144

Page 1: ...www gefentoolbox com 1 4 Splitter for HDMI GTB MHDMI1 3 144 GTB MHDMI1 3 144 BLK User Manual Gefen...

Page 2: ...ox com support gefentoolbox com Notice Gefen LLC reserves the right to make changes in the hardware packaging and any accompanying documentation without prior written notice 1 4 Splitter for HDMI is a...

Page 3: ...ions 6 Connecting And Operating The GefenToolBox 1 4 Splitter for HDMI 7 EDID Management 7 EDID Mode Selection 8 Audio Channel Selection 9 External EDID Management 10 Internal EDID Specification 11 Fa...

Page 4: ...efenToolBox 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 ei...

Page 5: ...gards 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 adv...

Page 6: ...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 Support...

Page 7: ...4 PANEL LAYOUT 2 6 4 1 3 5 7...

Page 8: ...formation 4 USB Service Port Mini USB service port used for upgrading the firmware 5 Locking HDMI Port Connect an HDMI source device to this port The signal from this port will be replicated to all HD...

Page 9: ...plitter 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 confi...

Page 10: ...rd 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 complet...

Page 11: ...n 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 monit...

Page 12: ...an 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...

Page 13: ...ta structure Video Data Block Audio Data Block Speaker Allocation xvYCC 1080p 60Hz 1080p 50Hz 1080i 60Hz native 1080i 50Hz 2 channel LPCM 2CH Multi channel LPCM 2CH LPCM 8CH AC 3 6CH DTS 7CH Dolby Dig...

Page 14: ...ased 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 s...

Page 15: ...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...

Page 16: ...L 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 m...

Page 17: ...14...

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Page 19: ...Pb 20600 Nordhoff St Chatsworth CA 91311 1 800 545 6900 818 772 9100 fax 818 772 9120 www gefentoolbox com support gefentoolbox com Rev C2 1 1A...

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