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.

Note

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.
   See Required Tools and Materials for Installing a 450 W or 550 W DC Power Supply.
2. Prepare the power cables and ground cable by attaching the provided connection lugs to the cables.
   See Preparing the Cables for a 450 W or 550 W DC Power Supply.
3. Insert the power supply into the switch.
   See Installing a 450 W or 550 W DC Power Supply.
4. Connect the ground wire.
   See Connecting the Ground Wire to a 450 W or 550 W DC Power Supply.
5. Connect the power supply to the electrical source and energize the DC circuit.
   See Connecting a 450 W or 550 W DC Power Supply to the Source Voltage.