Installation Guide

To replace a 550 W AC power supply:
1 Disconnect the AC power cord from the wall outlet and from the power supply.
2 Note the orientation of the installed power supply.
3 Push the latching tab toward the power supply handle and pull outward on the handle to disengage
the power supply internal connectors.
See Figure 210.
Figure 210: Removing a 550 W AC Power Supply
4 Carefully slide the power supply the rest of the way out of the switch.
Caution
Power supplies can become very hot during operation. Wear thermal protective gloves
when you remove a power supply from an operating switch.
Note
If you are not installing a replacement power supply, install a cover over the unoccupied
power supply bay. Unoccupied bays must always be covered to maintain proper system
ventilation and EMI levels.
5 Verify that the replacement power supply is oriented the same way as the unit you removed.
Replacing AC Power Supplies
ExtremeSwitching and Summit Switches: Hardware Installation Guide 267