The switches have two bays for hot-swappable power supplies. In a switch with a redundant
power configuration, you can replace one power supply without powering down the switch.
All installed power supplies must blow air in the same direction and must match the
airflow direction of the installed fan modules.
You need the following tools and materials to replace a 550 W AC or DC power supply:
#1 Phillips screwdriver
Torque screwdriver and wrench or
torque driver with attachments for tightening screws and nuts
Thermal protective gloves
(required for removal of a power supply)
Warning
Be sure to disconnect all power
cables before you disconnect the chassis ground wire.
Replace a 550 W AC Power Supply
To replace a 550 W AC power supply, follow these steps:
Disconnect the AC power cord from the wall outlet and from the power
supply.
Note the orientation of the installed power supply, and the location of the
latching tab at the right of the unit.
Push the latching tab toward the power supply handle and pull outward on the
handle to disengage the power supply internal connectors. See Removing a 550 W AC
Power Supply.
Removing a 550 W AC
Power Supply
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.
Verify that the replacement power supply is oriented the same way as the unit
you removed, and has the same airflow direction.
