31
2
Hardware Installation
COM1/COM2 RS232/RS422/RS485 Select
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
5-6 On: RS485
6
4
2
5
3
1
JP1 (for COM1) and JP2 (for COM2) are used to con
fi
gure the COM ports to
RS232, RS422 (Full Duplex) or RS485.
The pin function of the COM ports will vary according to the jumper’s setting.
JP1/JP2
6
4
2
6
4
2
5
3
1
5
3
1
COM 1
COM 2
JP1
JP2
RS232
RS422
Full Duplex
RS485
COM 1 / COM 2
DCD-
TD
RD
DT
R
-
GND
1 2 3 4 5
RT
S
-
RI
-
DSR
-
CT
S-
6 7 8 9
D
ATA
+
N.C.
D
ATA
-
N.C. N.C.
1 2 3 4 5
N.C.
N.C.
N.C.
N.C.
6 7 8 9
RXD+
TXD+
RXD-
TXD- N.C.
1 2 3 4 5
N.C.
N.C.
N.C.
N.C.
6 7 8 9
