Avalue FPC-08W27 User Manual
Page 17
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Quick Reference Guide
FPC-08W2x Series Quick Reference Guide 17
2.2.2
External Serial Port 2 connector (COM2)
In RS-232 Mode
Signal
PIN PIN
Signal
DCD#
1
6
DSR#
RXDD#
2
7
RTS#
TXDD#
3
8
CTS#
DTR#
4
9
RI#
GND
5
In RS-422 Mode
Signal
PIN PIN
Signal
TxD1-
1
6
NC
RxD1-
2
7
NC
TxD1+
3
8
NC
RxD1+
4
9
NC
GND
5
In RS-485 Mode
Signal
PIN PIN
Signal
DATA1-
1
6
NC
NC
2
7
NC
DATA1+
3
8
NC
NC
4
9
NC
GND
5
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