Status signalling with LEDs and status messages
98-148248-C Chapter 8: Service 8-13
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8.3 Status signalling with LEDs and status messages
8.3.1 Built-In Test Equipment
The ADU and the ACU have a Built-In Test Equipment (BITE) function in order to make fault
diagnostics easy during installation and service. The BITE test is performed during:
• Power On Self Test (POST), which is automatically performed each time the system is
powered on.
• Person Activated Self Test (PAST), which is initiated by starting a self test in the web
interface HELPDESK > Self test.
For details on error messages after a POST or a self test see Event list on page 8-4.
8.3.2 Means of signalling
The SAILOR 600 VSAT Ka provides various methods for signalling the system status. LEDs
on the front panel of the ACU are used to signal:
• Power on/off
• Logon
•Fail/Pass
The built-in web interface of the ACU shows any events (BITE error codes) with a short
message describing each error. This is also displayed in the ACU.
In an error situation, one of the following system status messages may be shown:
• ACU POST error
• Antenna POST error
• SAFE MODE (plus information about the specific error, see System messages on
page D-1).
8.3.3 LEDs of the ADU modules
Each ADU module has two LEDs: a Power and a Service LED.
For a list of modules see Removal and replacement of ADU modules on page 8-16.
LED Behaviour Description
Power Steady green Power supply OK
Off No power
Service Steady green Module ok, application running.
Flashing green Waiting for upload
Flashing red/green Uploading software
Steady red Module error or loading error
Table 8-1: LEDs of the ADU modules
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