Replacing Power Supplies - HP 8200 zl Installation And Getting Started Manual

Replacing Components

Replacing Power Supplies

Replacing Power Supplies
If your HP E8200 zl switch is configured with redundant power supplies, you
will not suffer any loss of traffic or performance if a power supply fails.
Replace the failed component as soon as possible. One of the Internal Power
LEDs on the management module will blink simultaneously with the switch
Fault LED indicating which power supply failed.
C a u t i o n
The 8200 zl switches are designed to provide continuously operating PoE or
PoE+ power in the event of a single power supply failure with only a loss of
power to lower priority ports.
If more than one power supply fails while the switch is at or near maximum
operating power, loss of all PoE or PoE+ power may result. That is, the sum
of all PoE supply capacity minus the largest supply. (See chapter 2 and 4 of
the HP Power over Ethernet (PoE/PoE+) Planning and Implementation
Guide.)
To return PoE power to the ports, without causing the switch to reboot, when
there are two or more power supplies still supplying 12V power, unplug the
power cord for 5 seconds and replug it for each power supply one at a time.
To remove an AC power supply:
1.
4-2
Ensure the AC power supply is not plugged into an AC power source on
the failed power supply.