Replacing a 750 W AC Power Supply

Before you begin

You need the following tools and materials to replace a 750 W AC power supply:

These switches have two bays for hot-swappable power supplies. In a switch with a redundant power configuration, you can replace one AC power supply without powering down the switch.

To replace a 750 W AC power supply, follow these steps:

Procedure

  1. Disconnect the AC power cord from the wall outlet and from the power supply.
  2. Note the orientation of the installed power supply.
  3. Push the latching tab toward the power supply handle and pull outward on the handle to disengage the power supply internal connectors.
    See Removing a 750 W AC Power Supply.
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    Removing a 750 W AC Power Supply
  4. Carefully slide the power supply the rest of the way out of the switch.
    Caution

    Caution

    Power supplies can become very hot during operation. Wear thermal protective gloves when you remove a power supply from an operating switch.
    Note

    Note

    If you are not installing a replacement power supply, install a cover over the unoccupied power supply bay. Unoccupied bays must always be covered to maintain proper system ventilation and EMI levels.
  5. Verify that the replacement power supply is oriented the same way as the unit you removed.
  6. Carefully slide the power supply all the way into the power supply bay.
    See Installing a 750 W AC Power Supply.
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    Installing a 750 W AC Power Supply
  7. Push the power supply in until the latch snaps into place.
    Caution

    Caution

    Do not slam the power supply into the switch.
  8. If necessary, slide the plastic cord retainer farther away from the back of the switch.
    See Moving the Power Cord Retainer.
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    Moving the Power Cord Retainer
  9. Connect the AC power cord to the input connector.
    See Connecting the Power Cord.
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    Connecting the Power Cord
  10. Open the clip and slip it over the barrel of the connector.
    See Attaching the Power Cord Retainer.
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    Attaching the Power Cord Retainer
  11. Snap the clip firmly around the connector.
  12. Connect the other end of the power cord to an AC power outlet.