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LED Label LED Color Description
INPUT OK Power supply activity Green The AC input voltage is greater than 85V.
None If the LED is not illuminated, then either the input
voltage is less than 70V, or the power supply is turned
off.
If the AC input voltage is between 70V and 85V, the
INPUT OK LED can be on, off, or flashing.
FAN OK Power supply fan activity
A bi-color LED indicates
fan status.
Green All fans are operational.
Red A fan failure is detected.
OUTPUT FAIL Power supply activity Red If the INPUT OK LED is illuminated, this LED is red if
the DC output voltages are below the minimum limit or
above the maximum limit.
If the INPUT OK LED is not illuminated, this LED might
be off or red.
Off If the INPUT OK LED is illuminated, this LED is off if
the DC output voltages are within the normal operating
range.
If the INPUT OK LED is not illuminated, this LED might
be off or red.