Installing Or Replacing A Power Supply - Nokia 500s Installation Manual

8
Installing and Replacing Other Components
3. Slowly pull the fan unit out of the chassis toward the rear.
4. If the 500s appliance is running, immediately install a replacement fan
unit by sliding it into the back of the appliance.
5. Tighten the four retaining screws on the new fan unit.

Installing or Replacing a Power Supply

The power supplies in the Nokia 500s appliance are hot swappable, and
perform load sharing while two active power supplies are connected in
parallel. Load sharing increases the life of the power supplies.
Note
On an appliance with two active power supplies installed, both power
supplies should be turned on for load sharing and redundancy. If both
power supplies are not turned on, the Fault LED illuminates. For more
information about the Fault LED, see
page 30.
120
"Power Supply Status LEDs"
Nokia 500s Installation Guide
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