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

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Planning and Implementation for the HP 2610-PoE Switches

Planning the PoE Configuration

This section assists you in building a reliable and, if required, redundant PoE

configuration. Using the following examples you can plan, build, and connect

your PoE devices quickly and easily.

Your configuration may vary however this section discusses some of the more

common configurations.

There are three configurations:

■ HP 2610-24-PPoE Switch

■ HP 2610-24-PoE Switch

■ HP 2610-48-PoE Switch

Each example shows a complete configuration including an optional 600 RPS/

EPS or 610 EPS unit. A table shows the PoE power available to connected PoE

devices when using just the switch or when using the switch and either the

600 RPS/EPS or 610 EPS unit. The tables show the available power when the

600 RPS/EPS or 610 EPS unit is providing PoE power to connected switch

devices.

Once you have selected your specific configuration and the PoE power

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

802.3af-compliant devices require (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.

If you are planning to include redundant power in your configuration you need

to determine which PoE devices must receive redundant PoE power, then total

their power requirements as explained in the paragraph above. The maximum

power figure must be less than the maximum power available when the switch

is powered by the 600 RPS/EPS or the 610 EPS unit, taking into consideration

the number of switches the 600 RPS/EPS or 610 EPS unit is powering.

Note Full redundancy is achieved by connecting both the RPS and EPS ports of the

HP 2610-PoE Switches to the corresponding ports of an HP 600 RPS/EPS.

The following examples only show the EPS connections, however, remember

these switches use a single internal power supply which provides two isolated

output voltages for switch and PoE functionality. One supply voltage provides

power for the switch functionality while the isolated voltage provides power