Black Box ServSwitch ACU2222A-R2 Guia de Instalação descarregar pdf (Página 91)

APPENDIX C: Pinout of RS-232 Port

Appendix C: Pinout of RS-232 Port

The table below shows the pinout of the ServSwitch Ultra’s RJ-12 (“6-wire RJ-11”)

female RS-232 port.

Pin Signal Name Abbrev. Direction Description

1 Data Set Ready DSR Input Reserved (not used)

2 Data Terminal Ready DTR Output Pulled high with 1-kΩ resistor

3 Transmit Data TD Output Serial data from port

4 Signal Ground SGND N/A DC ground reference

5 Receive Data RD Input Serial data to port

6 Request to Send RTS Output Pulled high with 1-kΩ resistor

1 2 ... 86 87 88 89 90 91 92 93 94 95 96

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Black Box ServSwitch ACU2222A-R2 Guia de Instalação Página 91