The 950 W DC-input (PWR-950-DC) power supply can be installed in the Catalyst 6503 and Catalyst 6503-E switch chassis only. Due to form factor differences, the 950 W DC-input power supply cannot be installed in any other Catalyst 6500 series switch chassis.
The DC-input PEM provide an input power connection on the front of the switch chassis to connect the site power source to the power supply. You can connect the DC-input power supply to the power source with heavy gauge wiring connected to a terminal block. The actual wire gauge size is determined by local electrical codes and restrictions.
