DFI LR100-N16D - Manual (Page 23)

23
2
Hardware Installation
COM 3 RS232/RS422/RS485 Select
JP9
1-2 On: RS232
(default)
3-4 On: RS422
Half Duplex
5-6 On: RS485
6 4 2
5 3 1
JP9 is used to configure COM 3 to RS232, RS422 (Half Duplex) or RS485.
The pin function of COM 3 will vary according to the jumper’s setting.
6
1 5
2
1
9
2
DCD-
TD
RD
DTR-
GND
RTS-
DSR-
CTS-
RI-
1
9
2
RXD+
TXD+
RXD-
TXD-
N.C.
N.C. N.C.
N.C.
N.C.
1
9
2
DATA+
N.C.
DATA-
N.C.
N.C.
N.C. N.C.
N.C.
N.C.
JP9
COM 3
6 4 2 6 4 2
5 3 1 5 3 1