Installing a 450 W or 550 W DC Power Supply

Before installing a Summit 450 W or 550 W DC power supply:

  • Verify that the switch rack or chassis has been grounded.
  • Verify that the airflow direction for the power supply is the same as the airflow direction of the installed fan modules in the switch.
To install the power supply, follow these steps:
  1. Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate ground point on the rack.
  2. If necessary, remove a blank panel from the rear of the switch.
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    Removing a Blank Panel
  3. Verify that the power supply is right side up.
    The power supply should be oriented as shown in Installing a Power Supply.
  4. Carefully slide the power supply all the way into the power supply bay.
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    Installing a Power Supply
  5. Push the power supply in until the latch snaps into place.
    Caution

    Caution

    Do not slam the power supply into the switch.
  6. To install a second power supply, repeat the procedure.
    Note

    Note

    If power supplies are not installed in both power supply bays, be sure to install a cover over the unoccupied bay. Unoccupied bays must always be covered to maintain proper system ventilation and EMI levels.
  7. Connect the ground wire, following the steps in Connecting the Ground Wire to a 450 W or 550 W DC Power Supply.
121248-05 Rev. AN