Advantech PPC-S123 manual COM3 RS-232 serial port CN4, COM4 RS-232 serial port CN5

C.4 COM3 RS-232 serial port (CN4)

Table C-4: COM3 RS-232 serial port

Pin Signal

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

1

2

3

4

5

6

7

8

9

C.5 COM4 RS-232 serial port (CN5)

Table C-5: COM4 RS-232 serial port

Pin Signal

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Appendix C I/O Pin Assignments 1 1 3