Gefen GTB-HD-DCR, User Manual, Page: 18 / 29

OPERATING THE DAISY CHAIN HD SYSTEM
The Hi-Def source can be controlled from the viewing location by connecting an IR Extender
(Gefen part no. EXT-RMT-EXTIRC) to each Receiver unit. Refer to the illustration below.
Since the Daisy Chain HD System can only accommodate one Hi-Def source, the IR
commands from the IR remote control can be sent from any Receiver (at any location) in the
system.
Multiple RS-232 devices can be connected throughout the Daisy Chain HD System .
RS-232 control-based devices, such as the Gefen 4x1 HD Switcher w/ Audio Decoding
(Gefen part no. GTV-AUDDEC-N), can be connected to the Splitter and/or Receiver units.
The
Daisy Chain HD System
provides both
Unicast
and
Broadcast
modes.
Broadcast vs. Unicast Mode
Broadcast mode allows all RS-232 devices that are connected to each Splitter and/or Receiver
unit to receive the same RS-232 command at the same time. By default, the Daisy Chain HD
System is set to broadcast mode.
Unicast mode provides specific control of each RS-232 device in the system, regardless of
where the device (Splitter or Receiver) is connected within the system.
Sender
Hi-Def source
IR Extender
Receiver
Splitter
to HDTV Display
(or other HDMI device)
IR remote control
(for Hi-Def source)
Splitter
IR Data
SAT
DVD
TV
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Controlling the source using IR
Controlling devices using RS-232