Modulated IR Pass Through Application
Figure 29 shows an installation in which the Tx/Rx pair sends a modulated infrared (IR)
signal across the link. On the Tx side, control system is connected to the Tx pin (the
modulated IR signal) and the Gnd (signal ground) on the transmitter. An IR emitter is
connected to the Tx and Gnd receiver output.
INPUT
RS-232
PASS THRU
AUDIO-R
HDMI
AUDIO-L
Rx
Tx TP 1
Ground
Control
System
Modulated IR TP 2 HDMI 201 Rx
HDMI 201 A D Tx
POWER
12V
0.4A MAX
1 2
HDMI OUTPUT RS-232
PASS THRU
TxRx
HDMI 201 Rx
IR Emitter
Flat Panel Display
w/ IR Control
Figure 29. Installation Routing Modulated IR
HDMI 201 • Installation and Operation 29