Dfi EC300 Series Manual de usuario Pagina 72

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72
4
Jumper Settings
EC300/310/320/321-CR4G65
JP3
JP1
COM 4
(JP3)
COM 3
(JP1)
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
5-6 On: RS485
64
2
531
JP1 (for COM 3) and JP3 (for COM 4) are used to con 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 / JP3
64
2
64
2
531531
COM 3 / COM 4
DCD
TXD
RXD
DTR
GND
12345
RX+
TX+
RX-
TX-
GND
12345
DATA+
N.C.
DATA-
N.C.
GND
12345
COM 3 and COM 4 RS232/RS422/RS485 Select
689
7
DSR
CTS
RTS
RI
689
7
N.C.
N.C.
N.C.
N.C.
689
7
N.C.
N.C.
N.C.
N.C.
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