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

13-25
Planning and Implementation for the HP 5400zl/8200zl Switches
Configuration Examples
Connecting a fully loaded external power supply can double the available PoE
power. See page 13-28.
Figure 13-4. Example of a 5406zl with one power supply, J8713A
In this example (Figure 13-4) there is one J8713A power supply supplying 900
watts for PoE usage. Compared to the J8712A, one J8713A power supply can
supply more PoE wattage than two J8712As.
This configuration offers 116 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 J8713A power supply.
Back
Power Supply
J8713A
Front
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
Single Internal
PoE Power
Supply (J8713A)
900 58 @ average 15.4 W each
116 @ average 7.5 W each
144 @ average 4.0 W each
None