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.
Warning
Be sure to disconnect all power cables before you disconnect the chassis ground
wire.
Warning
Make sure that the AC power supply circuit is not overloaded. Use proper over-current
protection, such as a circuit-breaker, to prevent over-current conditions.
Replace an 800 W AC Power Supply
Disconnect the AC power cord from the wall outlet and from the power
supply.
If necessary, remove a blank
panel from the back of the switch.
Note the orientation of the
installed power supply, and the location of the latching tab at the right of the
unit.
Verify that the new power
supply's airflow direction (front-to-back or back-to-front) is compatible with
the other installed power supply (if any) and with the installed fan
modules.
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 800 W AC
Power Supply.
Push the power supply in until
the latch snaps into place.
Do not slam the power supply into the
switch.
Note
If power supplies are not installed in both power supply bays, be sure to
install a cover over the unoccupied bay. Unoccupied bays must always be
covered to maintain proper system ventilation and EMI levels.
Connect the power cord to the
power supply and to a grounded AC power outlet.
Warning
Always make sure that the source outlet is properly grounded before
plugging the AC power cord into the AC power supply.
If the power supply is equipped with a power cord retainer, use the retainer to
secure the power cord to the power supply.
