Moxa Technologies C168P Manual do Utilizador descarregar pdf (Página 60)

PCI Express Board User’s Manual Pin Assignments

5-4

Male DB25 (OPT8B+/C+)

1

14

13

25

Pin RS-232

RS-422 /

4-wire RS-485

2-wire RS-485

2

TxD RxD+(B) Data+(B)

3

RxD TxD+(B) ---

4

RTS --- ---

5

CTS --- ---

6

DSR --- ---

7

GND GND GND

8

DCD TxD-(A) ---

20

DTR RxD-(A) Data-(A)

Female DB25 (OPT8A+/S+)

13 1

25 14

Pin RS-232

RS-422 /

4-wire RS-485

2-wire RS-485

2

RxD TxD+(B) ---

3

TxD RxD+(B) Data+(B)

4

CTS --- ---

5

RTS --- ---

6

DTR RxD-(A) Data-(A)

7

GND GND GND

8

DCD TxD-(A) ---

20

DSR --- ---

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 74 75

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