LV-67T
User’s Manua
l
-16-
2.4.4 <Serial Port interface>
COM1
: RS232 DB9 connector
Pin
Signal
Pin
Signal
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
Set by JP2
COM2
: RS232/422/485 DB9 connector
Pin
Signal
Pin
Signal
1
DCD/ 422TX-/ 485-
2
RXD/ 422TX+/ 485+
3
TXD/ 422RX+
4
DTR/ 422RX-
5
GND
6
DSR
7
RTS
8
CTS
9
Set by JP1
Note: Use JCSEL1 and JCSEL2 to select communication mode
CN_COM5/6
CN_COM3/4
1
2
19
20
1
2
20
19
2
1
6
5
JP1
JP2
2
6
1
5
JCSEL1
1
2
JCSEL2
2
6
1
5
1
11
12
COM2
COM1