10 <serial port – COMMELL LV-67O User Manual
Page 24
LV-67O User’s Manual
-
24
-
2.10 <Serial Port>
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