Installing a 450 W or 550 W Internal DC Power Supply

Summit 450 W power supplies are compatible with Summit X480 series switches and with Summit X670 series switches that have front-to-back ventilation airflow.

Summit 550 W power supplies are compatible with Summit X670 and X770 series switches. They are available in versions for switches with either front-to-back or back-to-front airflow.



You cannot combine power supplies of different wattages in the same switch.

To install a Summit 450 W or 550 W DC power supply, refer to the following sections as needed:

  1. Make sure you have the tools and materials you need.
  2. Prepare the power cables and ground cable by attaching the provided connection lugs to the cables.
  3. Insert the power supply into the switch.
  4. Connect the ground wire.
  5. Connect the power supply to the electrical source and energize the DC circuit.