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

10-4

Planning and Implementation for the HP 3500-PoE Switches

Planning the PoE Configuration

This section assists you in building a PoE configuration. Using the following

examples you can plan, build, and connect PoE devices quickly and easily.

There are four configurations for the HP 3500 Switches:

■ HP 3500-24-PoE Switch

■ HP 3500-24-PoE Switch connecting an external power supply

■ HP 3500-48-PoE Switch

■ HP 3500-48-PoE Switch connecting an external power supply

Each example shows a complete configuration. A table below the

configuration shows the PoE power available to connected PoE devices when

using just the switch.

Once you have selected your specific configuration and the PoE power

provided, you then add up the maximum amount of power each device

requires (use maximum power in watts, usually found on a product’s data

sheet). Adjust this total maximum power figure by adding 16% to account for

possible line loss. This value must be less than the maximum power available

shown in the table for your configuration.

HP 3500-24-PoE Switch Configuration

The table in this example configuration shows the PoE power available for

the HP 3500-24-PoE Switch using the internal power supply.

Figure 10-1. Example of an HP 3500-24-PoE Switch Using the Internal Power

Supply

All 24 ports can receive up to 15.4

watts of PoE power