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Compact 500


C500 reports general fault with no additional indication on front panel.

The cause is fault of one (or more) of following:

- Backup amplifier: amplifier failure or module not detected;
- Monitored EVAC input: short or open circuit;
- Integrated Fireman Mic: microphone element / PTT button short or open;
- Front Panel Access Key (if provided): short or open circuit;


All other faults are additionally indicated with a corresponding LED indicator on the front panel.

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