HP Power over Ethernet (PoE/PoE+) Planning and Implementation Guide

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Planning and Implementation for the HP 5400R zl2 Switches
Configuration Examples
In this example, one J9829A could be held in reserve to provide redundant
power for the other J9829A since they are equal in power. However if the
J9828A should fail there would be no redundancy for that power supply unless
you borrow power from the reserve J9829A. If you do that and the primary
J9829A fails, there will not be enough power to fully backup the failed J9829A.
In this example (Figure 14-16) there are two J9828A and two J9829A power
supplies supplying 2172watts for PoE usage. With this configuration, 140 ports
can be provisioned at 15.4 watts, or all 288 ports can be powered at 4.0 watts
each.
Figure 14-16.Example of an HP 5412R zl2 with four power supplies (two J9828A and two J9829A)
The following table shows label and descriptions for HP 5412R zl2 with four
power supplies, two J9828A and two J9829A:
Label Description
1 Front
2 508 watts for PoE per
power supply
3 832 watts for PoE per
power supply
4 Back