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

9-1

Planning and Implementation for the

HP 2920-PoE+ Switches

Introduction

This chapter discusses the planning process you should follow to successfully

implement PoE or PoE+ using the HP 2920-PoE+ Switches. See “General

Considerations” on page A-1 for an example list of considerations during the

planning phase.

HP 2920-PoE+ Switches

The HP 2920-48G-PoE+ Switch (J9729A) has 44 PoE-integrated auto-

sensing 10/100/1000Base-T RJ-45 ports with four dual-personality gigabit

uplink ports.

The HP 2920-24G-PoE+ Switch (J9727A) has 20 PoE-integrated auto-

sensing 10/100/1000Base-T RJ-45 ports with four dual-personality gigabit

uplink ports.

These switches also support some pre-standard PoE devices. For a list of these

devices, see the FAQs for your switch model. This feature is enabled by

default. If you do not want to use it, you must disable it by issuing the following

command via the switch CLI:

HP Switch (config)# no power pre-std-detect

For more configuration information, refer to the Management and

Configuration Guide for your switch at www.hp.com/networking/support. Auto

search on “2920”, select your switch model from the list, and click Display

selected. Then click on the links that have “Manuals” in them to get to the web

page that lists the available manuals.