Chapter 6: Troubleshooting
System LEDs 209
6666
SBU Fail/Pass LED
The function of the Fail/Pass LED on the SBU is:
SBU LED on maintenance connector
The function of the LED on the maintenance connector is:
Behavior Description
Steady red A fault which may degrade the system
operation is present in the SBU
Flashing: short green/ long
pause
Power On Self Test (POST) or Person
Activated Self Test (PAST) in progress
Flashing: long green/ short
orange
No current failure, but a BITE failure /
warning is logged in the error log
Steady green No faults
Flashing yellow LED
Activity (data in/out)
Link (correct connection)
Steady green LED
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