Removal and replacement of the ACU
7-8
7.3.2 LEDs in the ACU
The ACU has 3 LEDs: Power, Logon and Fail/Pass LED.
7.4 Removal and replacement of the ACU
There are no parts in the ACU that you can remove or replace. Contact your dealer for
further repair or replacement.
Figure 7-6: LEDs on the ACU
LED Behaviour Description
Power Steady green Power supply OK
Steady red Power supply failure
Off No power
Logon Flashing green Current status is displayed:
• Searching satellite
• Identifying satellite
• Carrier lock & TX enabled from modem
Steady green Satellite link established
Off No satellite link acquired
Fail/Pass
LED
Steady red A fault which prevents operation is present
in the system (ACU, ADU, MODEM).
Flashing green A Power On Self Test (POST) or Person
Activated Self Test (PAST) in progress.
The current status is displayed.
Flashing red Active BITE failure or warning. The event
is shown in the ACU display.
Steady green No faults.
Table 7-2: LEDs on the ACU
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General