PPC-3100/3120 User Manual
36
COM PORT PIN Definition
DIO PIN Definition
Connector
Function
Pin
RS232
RS422
RS485
1
DCD
422_TXD-
485_Data-
2
RXD
4
3
TXD
4
DTR
422_RXD-
5
GND
GND
6
DSR
7
RTS
8
CTS
9
RIC
Connector
Function
Pin DIO
1
GPIO0
2
GPIO1
3
GPIO2
4
GPIO3
5
GND
6
GPIO4
7
GPIO5
8
GPIO6
9
GPIO7