Redundant Power Supply - HP 5400 zl Installation And Getting Started Manual

Introducing the HP 5400 zl Switches
Back of the Switch

Redundant Power Supply

Load-sharing redundant power supplies (HP Switch zl 875 W Power Supply,
J8712A, a Switch zl 1500 W Power Supply J8713A, or a Switch zl 1500 W PoE+
Power Supply J9306A) can be installed in the back of the 5400 zl switches. To
provide redundancy, each power supply should be connected to different AC
power sources. Then, if one AC power source fails, the switch will continue
to run.
N o t e
The J8712A and J8713A power supplies can be paired within the same switch
or within the Power Supply Shelf. However, the J9306A power supply can only
be paired with another J9306A power supply within the same switch or within
the Power Supply Shelf. The J9306A power supply cannot be used with either
the J8712A or J8713A power supplies.
C a u t i o n
The switch redundant power supply is hot swappable, but, as indicated by the
caution statement on the power supply, it must be disconnected from AC
power before being installed or removed.
Because the switch can run on a single supply, removing a redundant supply
will not interrupt switch operation. However, on the 5412 zl one power supply
will only supply enough power to run the module slots A-F. Slots G-L will not
receive any power unless there are at least two power supplies installed.
When power is restored from a second (or more) power supplies, a system
reload or interface module reset is required to restore operation to slots G-L.
To reset the interface modules, pull each module out about half way and then
reseat them. Do this for each module in slots G-L.
For more information regarding power see the:
■
■
1-16
CAUTION:
.
. Refer to the installation guide for proper power cord selection
Disconnect AC power from the power supply BEFORE installing or
removing the supply. Otherwise, damage to the equipment may result.
HP Switch zl Internal Power Supply Installation Guide.
HP Power over Ethernet (PoE/PoE+) Devices Planning and Implemen-
tation Guide.
.