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POW-SUP (power supply)
Issue 1 June 2005 1881
POW-SUP (power supply)
G650
The POW-SUP maintenance object notes the presence of each power supply and the voltage of
each power supply in the G650.
This MO:
● Verifies that a power supply that is administered is physically present
● Verifies that each output voltage (+5V, -5V, and -48V for the power supplies and +12V for
the fan) is within tolerance
● Is used with the recycle carrier command to momentarily turn off and on the power to
a specified power supply or to a specified carrier
● Is used to turn off output voltages from one power supply to verify that the other supply can
support the entire load of the G650 (This is used only when a G650 has redundant power
supplies.)
There is one instance of this MO for each 655A power supply equipped in a G650 stack. Refer
to Figure 115: G650 Cabinet Environmental Hardware Components
on page 1959 for further
information.
If you have redundant power supplies, and both are operating, you can unplug one power
supply and leave it unplugged for ten minutes without causing an alarm. If the remaining
operating power supply has an alarm, the system does not wait ten minutes to generate an
alarm. It generates an alarm immediately. If the power supply is unplugged for more than ten
minutes, the system generates a warning alarm with an Error Code 23. If you need the power
supply to be unplugged for more than ten minutes, and you do not want the system to generate
an alarm, use the change circuit pack command to un-administer the power supply.
MO name in
Alarm Log
Alarm level
1
1. This is a minor alarm if there is a redundant power supply, and a major alarm if there is only one
power supply.
Initial SAT command to
run
Full name of MO
POW-SUP WRN test board location Power Supply
POW-SUP MIN test board location Power Supply
POW-SUP MAJ test board location Power Supply