COMMELL LV-67O - Manual (Page 24)

LV-67O User’s Manual
- 24 -
2.10
The board supports Three RS232 serial port and one jumper selectable RS232/422/485
serial ports. The jumper JCSEL1 & JCSEL2 can let you configure the communicating
modes for COM2.
Connector: COM1
Type: 9-pin D-sub male connector on bracket for COM1
Pin Description Pin Description
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N/C
Connector:
COM2
Type: 9-pin D-sub male connector on bracket 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
Setting RS-232 & RS-422 & RS-485 for COM2
Connector:
COM3/4, COM5/6
Type: 20-pin (2 x 10) header pitch = 2.54x1.27mm
Pin Description Pin Description
1 DCD1 2 RXD1
3 TXD1 4 DTR1
5 GND1 6 DSR1
7 RTS1 8 CTS1
9 RI1 10 N/C
11 DCD2 12 RX2
13 TX2 14 DTR2
15 Ground 16 DSR2