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User Manual version 2503
LIBRA 120 III (PC620 Intel 815E)
4-59
4.1.5.10.
COM3
COM 3 is an internal RS-232 reserved for touchscreen. Its
corresponding pin assignment is listed as below;
Pin # Signal
Pin # Signal
1
DCD
2 DSR
3
RXD
4 RTS
5
TXD
6 CTS
7
DTR
8 RI
9
GND
10 VCC
4.1.5.11.
CD1: CD Audio IN
Pin # Signal
1
Left channel
2
CD GND
3
CD GND
4
Right channel
4.1.5.12.
IR1: IR/CIR Connector
IR
Pin # Signal
1
5V
2
NC
3
IRRX
4
GND
5
IRTX
6
CIRRX
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