Brocade Communications Systems FCX Series Hardware Installation Manual page 30

Product Overview
NOTE
Both "AC OK" and "DC OK" LEDs must be green for the device to function normally.
TABLE 11
State
Four Green PSU LEDs
Single Red 'DC OK' LED
Both 'DC OK' LEDs Red
One PSU with both 'AC
OK' 'DC OK' LEDs Off
'DC OK' LEDs Red and
Off
All 'AC OK' LEDs Off
NOTE
When two 620W power supplies are installed in an HPOE system that has no load or light load on the
POE function, one of two power supplies may have its "DC OK" LED light red. There is no fault in the
power supply or the system and the switch is functioning normally. The LED will turn to green
automatically once the load is increased over the minimum load requirement. In configurations with a
single power supply installed the "DC OK" LED will light green in a no-load or light-load condition.
28
Switch status for two installed power supply units
LED PSU1 PSU2 Switch Status
AC OK Green Green Running
DC OK Green Green
AC OK Green Green Running
DC OK Green Red
AC OK Green Green Failure
DC OK Red
AC OK Green Off
DC OK Green Off
AC OK Green Off
DC OK Red
AC OK Off
DC OK Off
Load Sharing HPOE Budget(HPOE
Yes
No
No
Red
Running No
Failure No
Off
Off Power Off or No
Failure
Off
Brocade FCX Series Hardware Installation Guide
models only)
820W
410W
None
410W
None
None
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