DFI SB630-CRM User Manual
Page 32
32
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 confi 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
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
JP1
JP2