MIB: ICS-CHASSIS-MIB
Actual status of the power supply:
(1) unknown: status not known.
(2) disabled: power supply is disabled.
(3) failed - power supply is unable to supply power due to failure.
(4) warning - power supply is supplying power, but an output or sensor is bad or warning.
(5) standby - power supply believed usable,but not supplying power.
(6) engaged - power supply is supplying power.
(7) redundant - power supply is supplying power, but not needed.
(8) notPresent - power supply is supplying power is not present.