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
This configuration offers 118 ports of which all can be powered at 7.5 watts
each, and offers fiber optic gigabit connectivity.
If low wattage devices (4.0 watts) are connected to the switch, a 24 port
module could be installed in each of the six slots providing 144 ports and all
ports could be powered by a single J9829A power supply.
This configuration (Figure 14-5) is an example of two power supplies
supplying 900 watts each for a maximum of 1664 watts to a fully loaded chassis
of 144 ports. Therefore out of the total 144 available ports, 107 can be powered
at 15.4 watts each.
Source of Power
(PoE/PoE+)
Watts Available Number of Ports Powered and Average
watts/Port
Redundant Number of Ports Powered
and Average watts/Port
Single Internal
PoE Power
Supply (J9829A)
900 29 @ average 30 W each
58 @ average 15.4 W each
118 @ average 7.5 W each
144 @ average 4.0 W each
None