Dfi NP951-B16C Manual de usuario descargar pdf (Pagina 24)

24

2

Hardware Installation

COM 2 RS232/RS422/RS485 Select

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 congure COM 2 to RS232, RS422 (Full Duplex) or RS485.

The pin function of COM 2 will vary according to the jumper’s setting.

JP9

COM 2

2 1

9

DCD-

TD

GND

RTS-

RI-

RD

DTR-

DSR-

CTS-

2 1

9

DATA+

N.C.

N.C.

N.C.

N.C.

DATA-

N.C.

N.C.

N.C.

COM 2

2 1

9

RXD+

TXD+

N.C.

N.C.

N.C.

RXD-

TXD-

N.C.

N.C.

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