QSC DSP-30 Manuál stáhnout pdf (Strana 19)

Use: RS-232 Pinout

Pin Signal Description

1 DCD

2 TD

3 RD

4 DTR

5 GND

6 DSR

7 RTS

8 CTS

9 Contact Closure

RS-232 Pinout:

The diagram below shows the pin assignments for the female RS-232 connector on the DSP.

*Note! Pin 9 is used for contact closure input. This pin is not normally used by RS-

232 devices. Some laptop and desktop computer COM ports have been observed to

“pull” pin 9 to ground; this will cause unexpected behavior of the contact closure

function if pin 9 is not disconnected on the PC end of the cable. If this behavior is

observed, make sure that pin 9 is disconnected on the PC end of the cable.

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QSC DSP-30 Manuál Strana 19