Gefen TOOLBOX GTB-HD4K2K-148C-BLK, User Manual

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The 4K Ultra HD 1:8 Splitter for HDMI features EDID Management. Before the source can
send video and/or audio to the display (sink), the source reads the EDID (Extended Display
Identification Data) from the display (sink) devices connected to the splitter. The EDID
contains information about what type of audio/video data that the source can send to each
output device. The splitter can use either the downstream EDID (from the display/sink) or
the built-in internal EDID.
Using the Internal EDID
Use this EDID mode if problems are encountered when using the external EDID.
The built-in internal EDID provides the source device with a “generic” EDID which can
be used by all display (sink) devices. The use of the internal EDID also provides control
of the audio output format. See Setting the Audio Channel Mode (page 10) for more
information.
1. Disconnect the power supply from the splitter.
2. Set the EDID switch to the Int (up) position.
3. Reconnect the power supply.
If the EDID switch is moved from the Ext position to the Int position while the splitter
is powered, then power-cycle the splitter by disconnecting and reconnecting the power
supply in order for the change to take effect.
See Table 2.1 on the next page for specifications on the internal EDID.
4K Ultra HD
1:8 Splitter
for HDMI
Out 1
Out 2
Out 3
Out 4
Out 5
Out 6
Out 7
Out 8
In
Power
5V DC USB
Int
Ext
EDID
Audio
FST
2ch
Multi-ch
Fast
Slow
B
asic Oper
ation
Setting the EDID Mode
B
asic Oper
ation
Int
position