Advantech AIMB-787 User Manual page 112

Table B.10: RS-232 DB-9 Connector (COM1)
6
7
8
9
Table B.11: RS-232 Header (COM2, COM4 ~ COM6)
Pin
1
2
3
4
5
6
7
8
9
Table B.12: RS-232/422/485 Header (COM3)
Pin
1
2
3
4
5
6
7
8
9
AIMB-787 User Manual
DSR
RTS
CTS
RI
Signal
DCD
DSR
RXD
RTS
TXD
CTS
DTR
RI
GND
Signal
422/485 TX-
DSR
422/485 TX+
RTS
RX+
CTS
RX-
RI
GND
100