As the system is powered, all front panel LEDs are lit briefly. Under normal operating
conditions, the LEDs are lit as detailed in the following table.
Phase LED Colour Status
POWER UP COMMS YELLOW ON
POWER A BLUE ON If present
POWER B BLUE ON If present
AUDIO 1 OK GREEN OFF If present
AUDIO 2 OK GREEN OFF If present
FAULT RED ON briefly
NORMAL COMMS YELLOW FLASHING
POWER A BLUE ON If present
POWER B BLUE ON If present
AUDIO 1 OK GREEN If present
AUDIO 2 OK GREEN If present
FAULT RED ON briefly
PROBLEM
(System Failure) FAULT RED ON other LED states indeterminate
PROBLEM FAULT RED OFF
(Audio Failure) AUDIO 1 OK GREEN FLASHING Alarm will trigger
AUDIO 1 OK GREEN FLASHING Alarm will trigger
PROBLEM FAULT RED OFF Alarm will trigger
(Power Failure) POWER A BLUE OFF Alarm will trigger
POWER B BLUE OFF Alarm will trigger
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