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Connect Power to the Switch


The QFX5220 is shipped from the factory with two power supplies. Each power supply is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running. You can install a replacement power supply in either of the two slots next to the fan modules without powering off the switch or disrupting the switching function.

To connect AC power to a QFX5220:

  1. Attach the grounding strap to your bare wrist and to a site ESD point.
  2. Ensure that the power supplies are fully inserted in the chassis and the latches are secure. .
  3. Locate the power cords shipped with the switch; the cords have plugs appropriate for your geographical location. See AC Power Cord with Type C15 Coupler Specifications.

    For each power supply:

    1. Ensure the loop on the power cord retainer is open and there is enough space to insert the power cord coupler into the inlet. If the loop is closed, press the small tab on the retainer to loosen the loop.
    2. Thread the power cord coupler through the power cord retainer loop.
    3. Insert the power cord coupler firmly into the AC inlet on the power supply faceplate.
    4. Slide the power cord retainer loop towards the power supply until it is snug against the base of the coupler.
    5. Press the tab on the loop and draw out the loop to enclose the power cord. See Figure 5.
    Figure 5: Attaching the Power Cord Retainer
    Attaching the Power Cord

    Ensure that the power cord does not block access to device components or drape where people can trip on it.

  4. If the AC power source outlet has a power switch, set it to the OFF (O) position.Note

    The switch powers on as soon as power is provided to the power supply. There is no power switch on the device.

  5. Insert the power cord plug into an AC power source outlet.
  6. If the AC power source outlet has a power switch, set it to the ON (|) position.
  7. Verify that the AC and DC LEDs on each power supply are lit green.

    If the amber fault LED is lit, remove power from the power supply, and replace the power supply (see How to Remove a Power Supply from a QFX5220). Do not remove the power supply until you have a replacement power supply ready: the power supplies must be installed in the switch to ensure proper airflow.


    Replace a failed power supply with a new power supply within three minutes of removal to prevent chassis overheating.