FPC-1707/17L08/21W07/21W08
16 FPC-1707/17L08/21W07/21W08 Quick Reference Guide
2.2 FPC-17L08/21W08 connector mapping
2.2.1
Serial Port connector 1(COM1)
Pin
RS-232
RS-485
RS-422
1
DCD
TXD-
TXD-
2
RXD
TXD+
TXD+
3
TXD
RXD+
4
DTR
RXD-
5
GND
GND
GND
6
DSR
7
RTS
8
CTS
9
RI
2.2.2
Serial Port connector 2~3 (COM2~3)
Signal
PIN PIN
Signal
DCD
1
6
DSR
RXD
2
7
RTS
TXD
3
8
CTS
DTR
4
9
RI
GND
5
