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
Two power supplies could be used to supply PoE power at 1664 watts and the
other one power supply could be held in reserve as redundant power supply
if one of the primary power supplies fail. However this configuration cannot
be fully redundant.
This configuration (Figure 14-13) is an example of four power supplies
supplying 900 watts each for a maximum of 3328 [92.5% (900*4)]watts to a
fully-loaded HP 5412R zl2 Switch with 288 ports. Therefore out of the total 288
available ports, 216 can be powered at 15.4 watts each.
Figure 14-13.Example of an HP 5412R zl2 Switch with four power supplies, J9829A
The following table shows the label and description for HP 5412R zl2 with four
power supplies, J8929A:
Source of Power
(PoE/PoE+)
Watts Available Number of Ports Powered and
Average watts/Port
Redundant Number of Ports Powered
and Average watts/Port
Three Internal
PoE Power
Supplies
(J9829A)
2496 (without
redundancy)
83@ average 30 W each
161 @ average 15.4 W each
288 @ average 7.5 W each
288 @ average 4.0 W each
55 @ average 30 W each
107 @ average 15.4 W each
220 @ average 7.5 W each
288 @ average 4.0 W each
Label Description
1 Front
2 832 watts for PoE per
power supply