Dc Power Supply Replacement Procedures Navigation; Removing The Dc Power Supply - Avaya 8300 Series Routine Maintenance

DC power supply replacement procedures navigation

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Removing the DC power supply

• Installing the DC power supply
Removing the DC power supply
Remove the DC power supply if it is not functioning properly.
When you remove a power supply, the LED on the power supply turns off, and the Ethernet
Routing Switch 8300 chassis automatically redistributes the load to the remaining power
supplies.
Caution:
To maintain proper cooling, never operate the chassis with an empty power supply bay. If
you replace a failed power supply and you have no power filler panel, leave the failed power
supply installed until a replacement power supply is available.
Procedure steps
1. Turn the power supply switch to the off position.
2. Disable the incoming power from the DC input power source. You may need to
3. Loosen the retaining screws on the power supply.
4. Lift the extractor lever to disconnect the power supply from the backplane
5. Slide the power supply partway out of the chassis.
6. Use a Phillips screwdriver and remove the screw that secures the plastic safety
7. Disconnect the positive and negative voltage leads from the power supply
8. Disconnect the earth ground lead from the ground stud on the power supply.
9. Slide the power supply all the way out of the chassis and set it aside.
Routine Maintenance
switch a circuit breaker or turn off the DC input power source.
connector.
cover to the power supply. Remove the cover.
terminals.
on page 47
on page 48
Removing the DC power supply
May 2011 47