Advantech RUGGED PENTIUM IPPC-9120 - Manual (Page 163)

148 IPPC-9120/9150 Series User’s Manual
C.17 COM2
Table C-20: COM2
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 --- ---
1 5
9 6
3 2 4
7 8