DFI NP100-N16C - Manual (Page 24)

24
2
Hardware Installation
COM 3 RS232/RS422/RS485 Select
1 1 JP9
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
5-6 On: RS485
6
4
2
5
3
1
6
4
2
5
3
1
6
4
2
5
3
1
JP9 is used to configure COM 3 to RS232, RS422 (Full Duplex) or RS485.
The pin function of COM 3 will vary according to the jumper’s setting.
6
2
5
1
1 9
2
DCD-
TD
RD D
TR
-
GND R
T
S-
DSR
-
CT
S-
RI
-
1 9
2
RXD+ TXD+
RXD- TXD-
N.C. N.C.
N.C. N.C.
N.C.
1 9
2
DA
TA+ N.C.
DA
TA
-
N.C.
N.C. N.C.
N.C. N.C.
N.C.
JP9
COM 3