Hardware Configuration
IP416
User’s Manual
23
2
2.4.7
COM3 & COM4 RS-232 Ports (CN3)
COM3:
COM4:
1
6
5
9
1
6
5
9
Pin
Signal Name
Pin
Signal Name
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