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

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Planning and Implementation for the HP 5400zl/8200zl Switches
Configuration Examples
Figure 13-15.Example of an HP 5412zl Switch with three power supplies, J8713A
This configuration (Figure 13-15) is an example of three power supplies
supplying 900 watts each for a maximum of 2700 watts to a fully-loaded HP
5412zl Switch with 288 ports. Therefore out of the total 288 available ports,
175 can be powered at 15.4 watts each. That’s equal to a little over 6 and a half
modules. Or all ports could be used at 7.5 watts.
Two power supplies could be used to supply PoE power at 1800 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.
Back
Front
900 watts
for PoE
900 watts
for PoE
900 watts
for PoE
Source of Power Watts Available Number of Ports Powered and
Average watts/Port
Redundant Number of Ports Powered
and Average watts/Port
Three Internal
PoE Power
Supplies
(J8713A)
2700 (without
redundancy)
175 @ average 15.4 W each
288 @ average 7.5 W each
288 @ average 4.0 W each
58 @ average 15.4 W each
120 @ average 7.5 W each
225 @ average 4.0 W each