
F u l l I P 6 6 S t a i n l e s s
A F P - 6 1 2 3
P a n e l P C
Chapter 2 Quick Installation Guide
2 - 3
2.3 COM2 Connector for RS-232/422/485
RS-232
Pin Signal
Pin
Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
RS-422
Pin Signal
Pin
Signal
1 TXD-
2 RXD+
3 TXD+
4 RXD-
RS-485
Pin Signal
Pin
Signal
1 TXD-
2 NC
3 TXD+
4 NC