For switches with replaceable power supplies, refer to the following information to replace the power supplies. 5420F switches have 1 hot-swappable PSU and 1 fixed PSU. 5420M switches have 2 hot-swappable PSUs. In a switch with a redundant power configuration, you can replace one power supply without powering down the switch. Power supply slots are located on the rear panel of the switch.
Caution
Power supplies that support PoE cannot be installed in switches that do not support PoE. The switch operating system prevents PoE power contribution from a power supply that is not listed for use with that particular switch model.Images in this topic might show switches that are not identical to the ones you are using. However, the procedure for replacing a power supply is the same for all Extreme Networks switches.
Note
Read all of the information in this chapter thoroughly before attempting to replace a power supply.