Status signalling with LEDs and status messages
8-8
Chapter 8: Service
98-146706-A
8.3
Status signalling with LEDs and status messages
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 service and installation. 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
Means of signalling
The SAILOR 900 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
• ADU POST error
• SAFE MODE (plus information about the specific error, see
8.3.1
LEDs of the ADU modules
Each ADU module has a Power and a Service LED.
For a list of modules see
Removal and replacement of ADU modules
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
SAILOR900Ka-IM-98-146706.book Page 8 Thursday, July 16, 2015 11:07 AM
