Com 3 Rs232/Rs422/Rs485 Select - DFI LR100-N16 Series User Manual

COM 3 RS232/RS422/RS485 Select

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.
2 4 6
1 3 5
1-2 On: RS232
(default)
2
1
RD
DCD-
DTR-
TD
DSR-
GND
CTS-
RTS-
RI-
9
JP9
2 4 6
1 3 5
3-4 On: RS422
Half Duplex
COM 3
1 2
RXD-
RXD+
TXD-
TXD+
N.C.
N.C.
N.C.
N.C.
N.C.
9
Hardware Installation
JP9 6
2
1 5
2 4 6
1 3 5
5-6 On: RS485
1 2
DATA-
DATA+
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
9
2
23