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E-4 SPARC Enterprise M3000 Server Service Manual • November 2009
E.2 LED Functions of Power Supply Unit
This section describes the LED names and their functions mounted on the power
supply unit of the DC power supply model.
Note – This is equivalent to TABLE 2-5. When using the DC power supply model,
refer to the content described in this appendix.
TABLE E-1 LED Functions of Power Supply Unit
Component Name Color Description
Power supply unit
(PSU)
IN On (green) Indicates that input power is being supplied to the power
supply unit.
Off Indicates that input power is not being supplied to the power
supply unit.
OUT On (green) Indicates that the power is on and being supplied.
Off Indicates that the power is stopped and is not being supplied.
CHECK On (amber) Indicates that an error occurred in the PSU.
Blinking
(amber)
Indicates that the power supply unit is ready to be replaced.
Off Indicates that the PSU is in the normal state.