Replacing the Peripheral Power Supply/AC (PPS 0)

1. Completely power off the Enterprise 3500 system.

   See the power off instructions in Chapter 11, Powering Off and On.

2. Disconnect the AC power cord from the power inlet.

3. Release the power supply from the system chassis by inserting a Phillips #1 screwdriver into each quarter-turn access slot and then turning to the unlocked position. See Figure 7-3.

   Figure 7-3 Unlocking and Locking Quarter-turn Access Slots

   
   

4. Pull the ends of the extraction levers outward to release the power supply from the centerplane.

5. Pull out the power supply. See Figure 7-4.

   Figure 7-4 Replacing the Peripheral Power Supply/AC Input

   
   

6. Carefully insert the replacement power supply in the proper slot using the guide slots.

   Ensure that both extraction levers are in the outward position. The power supply will not seat fully unless the levers are in this starting position.

7. Slide the power supply toward the centerplane.

   Ensure that the arrows in the quarter-turn access slots point to the unlocked position. See Figure 7-3.

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   Caution -

   DO NOT FORCE the power supply into a slot; this can cause damage to the power supply and system.

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   The power supply should insert and seat smoothly. If it binds, remove it, and inspect the slot for any obvious obstructions. Do not damage the springfingers at the bottom of the power supply.

8. Use the extraction levers to seat the power supply.

   Simultaneously swing both levers inward to the locked position. Do not press on the front panel of the power supply to seat it--doing so will damage the connector pins.

9. Lock the power supply to the system chassis by inserting a Phillips #1 screwdriver into each quarter-turn access slot and then turning to the locked position. See Figure 7-3.

10. Connect the AC cord and power on the Enterprise 3500 system.

    See the power on instructions in Chapter 11, Powering Off and On.

11. Check to be sure the green LED on the power supply is lit.

    If the green LED is not lit, the power supply may not be seated properly. Check to see if it is seated properly by repeating Step 6 to Step 11. If the green LED is still not lit, see Table 10-6 for more information.