Black Box 4-Port Manual do Utilizador descarregar pdf (Página 55)

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Appendix B: Connector Pinouts

Appendix B. Connector Pinouts

B.1 DB9 M Connector

Figure B-1. DB9 M connector.

Table B-1. DB9 M connector pinout.

DB9 M Pin RS-232 Direction (RS-232) RS-422/485 4-Wire RS-485 2-Wire

1 DCD Input RDA (-) —

2 RD Input RDB (+) —

3 TD Output TDB (+) Data B (+)

4 DTR Output TDA (-) Data A (-)

5 GND — GND GND

6 DSR Input — —

7 RTS Output — —

8 CTS Input — —

9 — — — —

B.2 Terminal Block

Figure B-2. Terminal block connector.

Table B-2. Terminal block connector pinout.

Terminal RS-232 Direction (RS-232) RS-422 RS-485

A RTS Output TDA (-) Data A (-)

B TD Output TDB (+) Data B (+)

C CTS Input RDA (-) —

D RD Input RDB (+) —

E GND — GND GND

1 2 ... 50 51 52 53 54 55 56 57 58 59 60

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Black Box 4-Port Manual do Utilizador Página 55