
20
IP413
User’s Manual
2.4.3
COM1 & COM2 RS-232/422/485 Ports (CN3)
COM1:
COM2:
1
6
5
9
1
6
5
9
Pin
Assigment
Pin
Assigment
1
DCD, Data carrier detect
6
DSR, Data set ready
2
RXD, Receive data
7
RTS, Request to send
3
TXD, Transmit data
8
CTS, Clear to send
4
DTR, Data terminal ready 9
RI, Ring indicator
5
Ground