COMMELL LV-67J - Manual (Page 29)

LV-67J User’s Manual
29
2.13 <Serial Port>
The board supports Three RS232 serial port and one jumper select able RS232/422/485
serial ports. The jumper JCSEL1 & JCSEL2 can let you configure the communicating
modes for CN_COM2.
Connector: CN_COM2
Type: 9-pin header connector for COM2
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 10 N/C
COM1 COM3
COM4