COMMELL PMCAE - Manual (Page 29)

PMCA User’s Manual Hardware Setup
Power and Fan Connector 29
2.14 <Serial Port Jumper Setting >
The board provides six RS232 serial ports, with jumper selectable RS422/485 for COM2.
Connector: COM2
Type: 9-pin D-sub male connector on I/O Panel
Pin Description Pin Description
1 DCD/422TX-/485- 2 RXD/422TX+/485+
3 TXD/422RX+
4 DTR/422RX-
5 GND 6 DSR
7 RTS 8 CTS
9 RI
JCSEL1 JCSEL2
RS-232
RS-485
RS-422
1 2
5 6
1
3
10
12
1 2 3 4 5
6 7 8 9