A.4 com2 (cn28), Table a.4: com2 (cn28), A.5 com3 rs-232 serial port (cn38) – Advantech PPC-L128T User Manual
Page 33: Table a.5: com3 rs-232 serial port (cn38), Com2 (cn28), Com3 rs-232 serial port (cn38), Appendix a i/o pin a ssignments
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PPC-L128T User Manual
Appendix A
I/O Pin
A
ssignments
A.4
COM2 (CN28)
A.5
COM3 RS-232 serial port (CN38)
Table A.4: COM2 (CN28)
Pin
Signal RS-232
RS-422
RS-485
1
DCD
TX-
DATA-
2
RX
TX+
DATA+
3
TX
RX+
4
DTR
RX-
5
GND
GND
6
DSR
7
RTS
8
CTS
9
RI
Table A.5: COM3 RS-232 serial port (CN38)
Pin
Signal
Pin
Signal
1
DCD#
2
RX
3
TX
4
DTR#
5
GND
6
DSR#
7
RTS#
8
CTS#
9
RI#