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

5-2
Planning and Implementation for the HP 2610-PoE Switches
Introduction
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 disabled by default
and you must enable it if you want to use it by issuing the following command
from the switch CLI:
HP 2610 (config)# 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 “2610”, 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.
Power Redundancy for the HP 2610-PoE Switches
The internal power supply in these switches provides both the 12V (RPS) and
50V (EPS) circuits. If either the 12V or 50V fails, the power supply shuts down
which will bring down all switch and PoE connections. Therefore it is
important to provide a redundant power supply for both the 12V and 50V
circuits. Thus when you connect EPS from an HP 600 RPS/EPS (J8168A)
device to one of the HP 2610-PoE Switches, you should also connect the RPS
as well to provide full redundant power.
The HP 2610-PoE Switches can be connected to an HP 600 RPS/EPS and
receive full redundant power from the RPS part of the unit for switch
operation, if the internal power supply in the switch fails. If multiple switches
are connected to the RPS ports and several switches lose power at the same
time, the switch attached to the lowest RPS port number receives power. The
HP 600 RPS/EPS unit can provide all the power necessary to keep one switch
running.
EPS power from the HP 600 RPS/EPS is the PoE capability of the device. It
supplies backup and additional PoE power for the ports of the HP 2610-PoE
Switches.
The HP 610 EPS can also be used for this purpose, to supply PoE power only.
The HP 610 EPS cannot supply RPS power, it can only supply PoE power.