HP PoE PoEplus Planning Guide

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Power over Ethernet

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





Power over Ethernet (PoE/PoE+)

Planning and Implementation Guide



© Copyright 2005 - 2011 Hewlett-Packard

Development Company, L.P. The information

contained herein is subject to change without notice.

This document contains proprietary information, which is

protected by copyright. No part of this document may be

photocopied, reproduced, or translation into another

language without the prior written consent of Hewlett-

Packard.

Publication Number5991-8574

August 2011

Applicable Products

Disclaimer

HEWLETT-PACKARD COMPANY MAKES NO WARRANTY

OF ANY KIND WITH REGARD TO THIS MATERIAL,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not

be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing,

performance, or use of this material.

The only warranties for HP products and services are set

forth in the express warranty statements accompanying

such products and services. Nothing herein should be

construed as constituting an additional warranty. HP shall

not be liable for technical or editorial errors or omissions

contained herein.

Hewlett-Packard assumes no responsibility for the use or

reliability of its software on equipment that is not furnished

by Hewlett-Packard.

Warranty

For HP networking warranty information, visit

www.hp.com/networking/support.

A copy of the specific warranty terms applicable to your

Hewlett-Packard products and replacement parts can be

obtained from your HP Sales and Service Office or

authorized dealer.

HP ProCurve Switch 2910al-24G-PoE+ (J9146A)

HP ProCurve Switch 2910al-48G-PoE+ (J9148A)

HP ProCurve Switch 2915G (J9562A)

HP E5406 zl Switch (J8697A)

HP E5406-48G zl Switch (J8699A)


HP E5412-96G zl Switch (J8700A)

HP ProCurve Switch 3500-24-PoE (J9471A)


HP ProCurve Switch 3500yl-24G-PWR (J8762A)

HP ProCurve Switch 3500yl-48G-PWR (J8693A)

HP ProCurve 3500yl-24G-PoE+ Switch (J9310A)

HP ProCurve 3500yl-48G-PoE+ Switch (J9311A)

HP ProCurve Switch zl Power Supply Shelf (J8714A)



HP ProCurve Switch 2626-PWR (J8164A)

HP ProCurve Switch 2650-PWR (J8165A)HP ProCurve Switch 2600-8-PWR with GigabitUplink

(J8762A)

HP ProCurve Switch 2610-24/12PWR (J9086A)

HP ProCurve Switch 2610-24-PWR (J9087A)

HP ProCurve Switch 2610-48-PWR (J9089A)


HP ProCurve Switch xl PoE Module (J8161A)

HP ProCurve 24-Port 10/100/100 PoE+ zl Module (J9307A)

HP ProCurve 20-Port 10/100/1000 PoE+/4-Port

MiniGBIC Module

(J9308A)

HP ProCurve 24-Port 10/100 PoE+ zl Module (J9478A)

HP 600 Redundant and External Power Supply (J8168A)

HP 610 External Power Supply (J8169A)

HP 620 Redundant and External Power Supply (J8696A)

HP 630 Redundant and/or External Power Supply (J9443A)

HP ProCurve 1500W PoE+ zl Power Supply (J9306A)

HP ProCurve 2520-8-PoE (J9137A)

HP ProCurve 2520-24-PoE (J9138A)

HP ProCurve 2520G-8-PoE (J9298A)

HP ProCurve 2520G-24-PoE (J9299A)

24-port Gig-T PoE+ v2 zl Module (J9534A)


24-port Gig-T PoE+ / 4-port SFP v2 zl Module (J9536A)24-port Gig-T PoE+ v2 zl Module (J9537A)


8-port 10GBase-T v2 zl Module (J9546A)

24-Port 10/100 PoE+ v2 zl Module (J9547A)

20-port Gig-T / 2-port 10-GbE SFP+ v2 zl Module (J9548A)

20-port Gig-T / 4-port SFP v2 zl Module (J9549A)

24-port Gig-T v2 zl Module (J9550A)

12-port SFP / 12-port 10/100/1000 PoE+ v2zl Module

(J9637A)

HP E3800-24G-2SFP+-PoE+ Switch (J9673A)HP E3800-4G-4SFP+-PoE+ witch (J9674A)

HP E2620-24-PPoE+ (J9624A)

HP E2620-24-PoE+ (J9623A)

HP E2620-48-PoE+ (J9626A)

http://www.hp.com/networking/support




iii

Contents

1 Introduction

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Power Through the Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

PoE Capabilities of the HP Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

HP ProCurve 2520 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

HP ProCurve 2520G Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6



Power Redundancy for the 2600 and 2610 Switches . . . . . . . . . . . 1-9

HP ProCurve 2615 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

HP E2620-PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Power Redundancy for the E2620 Switches . . . . . . . . . . . . . . . . . 1-11HP ProCurve 2910al Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Power Redundancy for the 2910al Switches . . . . . . . . . . . . . . . . 1-12

HP ProCurve 2915G Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

HP ProCurve 3500-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Power Redundancy for the 3500 Switches . . . . . . . . . . . . . . . . . . 1-14

HP ProCurve 3500yl-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Power Redundancy for the 3500yl PWR Switches . . . . . . . . . . . . 1-16HP ProCurve 3500yl-PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Power Redundancy for the 3500yl PoE+ Switches . . . . . . . . . . . 1-17

HP E3800 PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Power Redundancy for the E3800 PoE+ Switches . . . . . . . . . . . 1-18

HP E5400zl/E8200zl Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Power Redundancy for the E5400zl/E8200zl Switches . . . . . . . 1-21

PoE/PoE+ Chassis Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22Why Mixing Power Supplies in chassis is NOT Supported . . . . . 1-22

PoE Chassis Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

PoE/PoE+ Chassis Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Configuring PoE Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

HP ProCurve PoE and PoE+ Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

HP ProCurve Switch xl PoE Module . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

ProCurve Switch zl 24 port Gig-T PoE Module (J8702A) . . . . . . . . . . 1-25



iv

ProCurve Switch zl 20 port Gig-T + 4 port

mGBIC Module (J8705A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

HP ProCurve 24-Port 10/100/1000 PoE+ zl Module . . . . . . . . . . . . . . . 1-26HP ProCurve 20-Port 10/100/1000 PoE+/4 Port

MiniGBIC zl Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

HP ProCurve 24-Port 10/100 PoE+ zl Module . . . . . . . . . . . . . . . . . . . 1-27

HP 24-Port Gig PoE+ v2 zl Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

HP 20-Port Gig-T PoE+ / 4-Port SFP v2 zl Module . . . . . . . . . . . . . . . 1-27

HP 20-Port PoE+ & 2-port SFP+ v2 zl Module . . . . . . . . . . . . . . . . . . . 1-28

HP 24-Port 10/100 PoE+ v2 zl Module . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Quick Reference Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

2 Operating Rules

Overview of Switch PoE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Configuring PoE/PoE+ Power Using the CLI . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Allocating PoE Power by Class or User-defined Power Level . . . . . . 2-4

Switch Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Switch Priority Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

PoE Power Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Line Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

PD Power Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

PD Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Provisioning Power for PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

HP ProCurve 2520-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

HP ProCurve 2600-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

HP ProCurve 2610-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11


HP ProCurve 2615-8-PoE Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13



HP E2620-PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14



v

PoE+ Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

PoE/PoE+ Allocation Using LLDP Information . . . . . . . . . . . . . . 2-15

HP ProCurve 2910al PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15



HP ProCurve 2915-8G-PoE Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16



HP ProCurve 3500-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

PoE Allocation Using LLDP Information . . . . . . . . . . . . . . . . . . . 2-18

HP ProCurve 3500yl PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18




HP ProCurve 3500yl PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19



HP E3800 PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20



HP ProCurve E5400zl/E8200zl Switches . . . . . . . . . . . . . . . . . . . . . . . 2-22



HP ProCurve Switch xl PoE Module for the 5300xl Switch . . . . . . . 2-25

3 Planning and Implementation for the 2520 and 2520G

Switches

Planning the PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1HP ProCurve 2520-8-PoE and 2520G-8-PoE Configurations . . . . . . . . 3-2

HP ProCurve 2520-24-PoE and 2520G-24-PoE Configurations . . . . . . 3-3

4 Planning and Implementation for the 2600-PWR Switches

Planning the PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

ProCurve 2600-8-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2ProCurve 2626-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

ProCurve 2650-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6



vi

5 Planning and Implementation for the 2610-PWR Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

ProCurve 2610-24/12PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . 5-2ProCurve 2610-24-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

ProCurve 2610-48-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

6 Planning and Implementation for the

2615 and 2915G Switches

Planning the PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

HP ProCurve 2615-8-PoE and 2915-8G-PoE Configurations . . . . . . . . 6-2

7 Planning and Implementation for the E2620 PoE+

Switches


HP E2620-24-PPoE+ Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

HP E2620-24-PoE+ Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

HP E2620-48-PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

8 Planning and Implementation for the Switch xl PoE

module


ProCurve Switch PoE xl Module Configurationswith a 600 RPS/EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

ProCurve Switch PoE xl Module Configurations with a 610 EPS . . . . 8-4

9 Planning and Implementation for the 2910al PoE+

Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1ProCurve 2910al-24G-PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . 9-2

ProCurve 2910al-48G-PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . 9-4

10 Planning and Implementation for the 3500 Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

HP ProCurve 3500-24-PoE Switch Configuration . . . . . . . . . . . . . . . . 10-2

HP ProCurve 3500-48-PoE Switch Configuration . . . . . . . . . . . . . . . . 10-4



vii

11 Planning and Implementation for the 3500yl Switches

Planning Your PoE or PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

HP ProCurve 3500yl-24G-PWR Configuration . . . . . . . . . . . . . . . . . . . 11-2

HP ProCurve 3500yl-48G-PWR Configuration . . . . . . . . . . . . . . . . . . . 11-4

HP ProCurve 3500yl-24G-PoE+ Configuration . . . . . . . . . . . . . . . . . . 11-7

HP ProCurve 3500yl-48G-PoE+ Configuration . . . . . . . . . . . . . . . . . . 11-9

12 Planning and Implementation for the E3800 Switches

Planning Your PoE or PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

HP E3800-24G-PoE+-2SFP+ or HP E3800-24G-PoE+-2XG Switch

Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3

HP E3800-48G-PoE+-4SFP+ or HP E3800-48G-PoE+-4XG Switch

Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5

13 Planning and Implementation for the E5400zl/E8200zl

Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

Power Configuration for HP E5406zl/E8206zl PoE Switch . . . . . . . . 13-2

Power Configuration for HP E5406zl/E8206zl

PoE/PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-4

Power Configuration for HP 5412zl/8212zl

PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-5Power Configuration for HP 5412zl/8212zl PoE/PoE+ Switches . . . 13-7

Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-9

HP ProCurve 5406zl Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-9

ProCurve E5406zl and E8206zl Configurations

using the Power Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14

Example Configuration for HP ProCurve E5406zl

With One PoE/PoE+ Power Supply . . . . . . . . . . . . . . . . . . . . . . . 13-15Example Configuration for HP ProCurve E8206zl

with One PoE/PoE+ Power Supply . . . . . . . . . . . . . . . . . . . . . . . 13-16

Example Configuration for HP ProCurve E8206zl

with Two PoE/PoE+ Power Supplies . . . . . . . . . . . . . . . . . . . . . 13-17

HP ProCurve E8206zl Configurations using the

Power Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-17

HP ProCurve 5412zl/8212zl Configurations . . . . . . . . . . . . . . . . . . . . 13-18

Standard J8712A Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 13-18Standard J8713A Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 13-22

Mixed J8712A and J8713A Configurations . . . . . . . . . . . . . . . . . 13-25



viii

Using the HP ProCurve 1500W PoE+ zl Power

Supply (J9306A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-28

ProCurve 5412zl/8212zl Configurations using

the Power Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-30

14 Infrastructure Requirements

Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Physical Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Glossary

A Planning Considerations

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Specific Considerations for the 2910al-PoE Switches . . . . . . . . . . . . . . . . A-2

Specific Considerations for the 3500-PoE Switches . . . . . . . . . . . . . . . . . A-3

Specific Considerations for the 3500yl-PWR Switches . . . . . . . . . . . . . . . A-4

Specific Considerations for the 3500yl-PoE+ Switches . . . . . . . . . . . . . . . A-5

Specific Considerations for the E5400zl/E8200zl Switches . . . . . . . . . . . A-6

Index



1-1

IntroductionOverview

1

Introduction

This chapter provides an overview of:

■ Power over Ethernet (PoE/PoE+).

■ A list of reasons why you might want to implement PoE in your network

environment.

■ How PoE supplies power over twisted pair cable.

■ The capabilities of the devices used to provide PoE.

Overview

Power over Ethernet technology allows IP telephones, wireless LAN Access

Points and other appliances to receive power as well as data over existing LAN

cabling, without needing to modify the existing Ethernet infrastructure.

Power over Ethernet has become a standard feature of ethernet switches, as

the cost of adding power supplies to the Ethernet switches is small. IEEE

802.3af is an extension to the existing Ethernet standards. It offers the first

truly international standard for power distribution (consider how many

different AC power plugs exist worldwide).

Almost all appliances require both data connectivity and a power supply. Justas telephones are powered from the telephone exchange through the same

twisted pair that carries the voice, we cannow do thesame thing with Ethernet

devices.



1-2


The technology is bound to make a big impact in the world of embedded

computing. In the realm of embedded computers, where the systems are

increasingly connected to LANs and the internet, the advantages of providing

power and data through a single cable should be obvious. Consider a typicalapplication:a systemfor a multi-level carparking garage that includes security

cameras, information signs,call-for-help telephones and vehicle sensors. Such

a system is distributed over a significant area, where main power is not easily

available. A single link to a PoE Ethernet Switch makes implementing this

system less expensive and faster than using a non-PoE switch.

Since the original introduction of PoE, the IEEE has initiated a new project

called 802.3at which is commonly referred to as PoE+. This project enhancesPoE in a couple of very important ways. First, it provides up to 30W of power

to a Powered Device (PD), 25.5 watts to the device and 4.5 for line loss, and

allows this power to also run on cabling designed for 1000BASE-T. Secondly,

it provides a new mechanism for communicating power capability and

requirements using the 802.1ab Link Layer Discovery Protocol (LLDP). This

protocol addition allows PoE+ switches to deliver power more efficiently and

thereby provide power to more devices for a given power supply capacity. The

new standard is going to be a superset of the 802.3af because it provides allthe same functionality, and more. The table below shows the capabilities of

802.3af versus 802.3at.

In order for 802.3at to provide higher power, Class D (Cat5e) or better cables

are required. 802.3at also increases the minimum output voltage of the Power

Source Equipment (PSE) from 44 volts to 50 volts. For this reason, you maynote that PoE+ devices use a 54 volt power supply.

N o t e The detection and classification functions ensure that if two PoE sources are

attached together, power will not be improperly applied.

Classification Discovery

Power to PD Physical Logical

<25.5W 802.3at 802.3at

<12.95W 802.3af

802.3at

802.3at



1-3


Power over Ethernet connections to embedded computers will allow a less

expensive installation (no AC cabling, lower labor costs), facilitate updating

the installation and repositioning of end devices (wireless access points,

security cameras, and so forth) without electricians, while maintaining fullcontrol over every node through the internet.

Figure 1-1 shows a typical system implemented to power telephones and

wireless access points. The PoE Ethernet switches are installed to supply

power over the twisted pair LAN cables to run phones or other appliances as

required.

Figure 1-1. Example of a Typical Implementation

5406zl Switch

3500yl-48G-PWR 3500yl-24G-PWR

Wireless

AccessPoints

Cameras

Cameras

Phones

Phones

Mitel 3300

IP PBX

Wireless

AccessPoints

620 RPS/EPS

Power Supply Shelf



1-4

IntroductionPower Through the Cable

Here are some reasons why you might want to do this:

■ Simplifies installation and saves space - only one set of wires to bring to

your appliance.

■ Saves time and money - there is no need to pay for additional electrical

power runs or to delay your installation schedule to make them.

■ Minimal disruption to the workplace - the appliance can be easily moved,

to wherever you can lay a LAN cable.

■ Safer - no AC voltages need to be added for additional network devices.

■ As well as the data transfer to and from the appliance, you can use SNMP

network management infrastructure to monitor and control theappliances.

■ Appliances can be shut down or reset remotely - no need for a reset button

or power switch.

■ When implementing wireless LAN systems it simplifies the radio

frequency (RF) survey task, as the access point can easily be moved and

wired in.

Power Through the Cable

A standard CAT5 Ethernet cable has four twisted pairs. Only two of these pairs

are used for 10Base-T and 100Base-TX data; all four are used for 1000Base-T

data. The specification allows two options for using these cables for power:

■ The spare pairs are used. The pair on pins 4 and 5 are connected

together and form the positive supply, and the pair on pins 7 and 8 are

connected and form the negative supply.

■ The data pairs are used. Since Ethernet pairs are transformer coupled

at each end, it is possible to apply DC power to the center tap of the

isolation transformer without upsetting the data transfer. In this mode of

operation the pair on pins 1 and 2 and the pair on pins 3 and 6 can be of either polarity.

The 802.3af standard does not allow both pairs (spare and data) to be used -

a choice must be made. The Power Sourcing Equipment (PSE) applies power

to either set of wires. HP switches, as a PSE, supply PoE power over the “data

pair” or, pins 1 and 2, and the pair on pins 3 and 6. The Powered Device (PD)

must be able to accept power from both options because mid-span equipment

must (according to the specification) supply power over the “spare pair” or pins 4 and 5, and the pair on pins 7 and 8.



1-5

IntroductionPoE Capabilities of the HP Products

An obvious requirement of the specification is to prevent damage to existing

Ethernet equipment. A discovery process, run from the PSE, examines the

Ethernet cables, looking for devices that complywith thespecification. It does

this by applying a small current-limited voltage to the cable and checks for the presence of a 25k ohm resistor in the remote device. Only if the resistor is

present, will the full wattage be applied, but this is still current-limited to

prevent damage to cables and equipment in fault conditions.

Once discovered, a different voltage is applied, and based upon the current

drawn, the class of device can be determined. This indicates how much power

is to be drawn. The 802.3at standard provides both a physical classification

and a logical classification, which is even more precise.

The PD must continue to draw a minimum current. If it does not (for example,

when the device is unplugged) then the PSE removes the power and the

discovery process begins again.

PoE Capabilities of the HP Products

These switches are designed to be used primarily in wiring closets directly

connected to computers, printers, and servers to provide dedicated

bandwidthto those devices. Additionally, they support the PoEstandardIEEE

802.3af, and the PoE+ IEEE 802.3at standard. They can supply power over a

twisted-pair cable to power devices such as telephones, wireless access points, IP Gateways, and audio and video remote monitoring.

The HP PoE switch devices are multi-port switches that can be used to build

high-performance switched workgroup networks with PoE. These switches

are store-and-forward devices that offer low latency for high-speed

networking. The PoE switches are designed to support Redundant Power

Supply and Power over Ethernet (PoE and/or PoE+) technologies.



1-6


HP ProCurve 2520 Switches

The 2520 (J9137A), has 8 Integrated PoE auto-sensing 10/100Base-TX RJ-45

ports with two dual-personality Gigabit Uplink ports.

The 2520 (J9138A), has 24 Integrated PoE auto-sensing 10/100Base-TX RJ-45

ports and two 10/100/1000Base-TX uplink ports, with two dual-personality

Gigabit Uplink ports.

These switches also support some pre-standard PoEdevices. Fora listof these

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

default.

The dual-personality ports have either auto-sensing 10/100/1000Base-T

RJ-45 or mini-GBIC connectivity. The dual-personality ports do not support

PoE.

HP ProCurve 2520G Switches

The 2520G (J9298A), has 8 Integrated PoE auto-sensing 10/100/1000Base-TX

RJ-45 ports with two dual-personality Gigabit Uplink ports.

The 2520G (J9299A), has 24 Integrated PoE auto-sensing 10/100/1000Base-TXRJ-45 ports including four dual-personality Gigabit Uplink ports.

I d i



1-7




default.

The dual-personality ports have either auto-sensing 10/100/1000Base-TRJ-45 or mini-GBIC connectivity. The dual-personality ports do not support

PoE.


The 2650-PWR (J8165A), has 48 Integrated PoE auto-sensing 10/100Base-TX

RJ-45 ports with two dual-personality Gigabit Uplink ports.

The 2626-PWR (J8164A), has 24 Integrated PoE auto-sensing 10/100Base-TXRJ-45 ports with two dual-personality Gigabit Uplink ports.

The 2600-8-PWR with Gigabit Uplink (J8762A), has 8 Integrated PoE auto-sensing 10/100Base-TX RJ-45 ports with one dual-personality Gigabit Uplink

port. The 2600-8-PWR also supports some pre-standard PoE devices. For a list

of these devices, see the FAQs for your switch model. This feature must be

enabled; it is not a default feature.

I t d ti



1-8


The dual-personality ports have either auto-sensing 10/100/1000Base-T

RJ-45 or mini-GBIC connectivity. The dual-personality ports do not support

PoE.


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

devices, see the FAQs for your switch model. This feature must be enabled; it

is not a default feature.

The 2610-48-PWR (J9089A), has 48 Integrated PoE auto-sensing

10/100Base-TX RJ-45 ports with four Gigabit Uplink ports.

The 2610-24-PWR (J9087A), has 24 Integrated PoE auto-sensing 10/100Base-

TX RJ-45 ports with four Gigabit Uplink ports.

The 2610-24/12PWR (J9086A), has 12 Integrated PoE auto-sensing 10/100Base-

TX RJ-45 ports with four Gigabit Uplink ports.

For more information, refer to the Management and Configuration Guide

for your switch at www.hp.com/networking/support.

PoE

Power

Fault

Dual-Personality Port:10/100/1000-T (T) or Mini-GBIC (M)

(Port 9T is IEEE Auto MDI/MDIX)

Status

Reset Clear Console

PoE-Integrated10/100-TXPorts(1 -8) (Portsare HPAuto-MDIX)

ProCurveSwitch 2600-PWR

J8762A

*S pdmode: of f= 1 0 M bps , f l as h = 1 00 M b ps , on = 1 0 00 M b ps

Link

Mode

LEDMode

Spd

Act

FDx

Test

EPS

Fan

2 3 4Link Mode1 Link Mode5 6 7 8 9TLink Mode

PoE *

9M

! Use only one (T or M) for Port 9

RPS

Introduction





1-9


Power Redundancy for the 2600 and 2610 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 downwhich 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 a 600 RPS/EPS (J8168A) device to

one of the 2600-PWR Switches or one of the 2610-PWR Switches, you should

also connect the RPS as well to provide full redundant power.

The 2600-PWR Switches and 2610-PWR Switches can be connected to a 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 600 RPS/EPS unit can provide all the power necessary to keep one

switch running.

EPS power from the 600 RPS/EPS is the PoE capability of the device. It

supplies backup and additional PoE power for the ports of the 2600-PWR and2610-PWR switches.

The 610 EPS can also be used for this purpose, to supply PoE power only. The

610 EPS cannot supply RPS power, it can only supply PoE power. Refer to

chapter three, four, and five for more information on capabilities and

connectivity of these switches, components and accessories.

HP ProCurve 2615 SwitchThe HP ProCurve Switch 2615-8-PoE (J9565A), has 8 Integrated PoE auto-

sensing 10/100Base-T RJ-45 ports with two dual-personality Gigabit Uplink

ports. There is no power redundancy for this switch.



default.

The dual-personality ports have either auto-sensing 10/100/1000Base-T RJ-45or mini-GBIC connectivity. The dual-personality ports do not support PoE.

Introduction



1-10


HP E2620-PoE+ Switches

The HP Switch E2620-48-PoE+ (J9627A), has 48 Integrated PoE+ auto-sensing

10/100/1000Base-T RJ-45 ports with four Gigabit Uplink ports.

The HP Switch E2620-24-PoE+ (J9625A), has 24 Integrated PoE+ auto-sensing

10/100/1000Base-T RJ-45 ports with two Gigabit Uplink ports.

The HP Switch E2620-24-PPoE+ (J9624A), has 24 Integrated PoE+ auto-sensing 10/100/1000Base-T RJ-45 ports with two Gigabit Uplink ports.

These switches also support some pre-standard PoE devices. While HP strivesto support as many non-standard devices as possible, some devices in the

market are designed in ways that are restrictive, or exclusive of the IEEE

standard and thus cannot be supported. For a list of these devices, see the

FAQs for your switch model at www.hp.com/networking/support, and click on

faqs. This feature is the default and you must disable it if you do not want to

use it. For example:

HP 2620#(config) no power pre-std-detect



Introduction







1-11

t oduct oPoE Capabilities of the HP Products

Power Redundancy for the E2620 Switches


54V (EPS) circuits. If the 54V portion of the power supply fails, it will only shutdown the PoE connections. However, if the 12V portion of the power supply

fails, it will shut down the entire switch. Therefore it is important to provide

a redundant powersupply forboth the12V and54V circuits. It is recommended

that both EPS and RPS be connected to provide full redundancy.

HP Redundant/External Power Supplies (RPS/EPS) can be connected to the

E2620 Switches for redundant 12 V system power (RPS) and to provide for

additional PoE+ provisioning. For RPS power, the E2620 Switches can beconnected to either an HP 620 RPS/EPS (J8696A) or HP 630 RPS/EPS

(J9443A). For additional PoE+ EPS power, only the 630 can be used. The 620

does not provide 54 V for PoE+, only 50 V for PoE, and the E2620 Switches do

not support connections to the 620 for EPS.

The E2620 Switches provide up to 30W from each port (25.5W for PD, 4.5W

for cable dissipation); the number of ports that can be operated at full power

is limited to 12 ports at full power, and/or 24 ports at 15.4W. To increase thecapacity of the switch, an external power supply can be attached to double

the total system capacity to 24 ports at 30W, or 48 ports at 15.4W.

The power supplies for these switches are optimized to provide the most

efficient and cost effective solution.

HP ProCurve 2910al Switches

The HP ProCurve Switch 2910al-48G-PoE+ (J9148A), has 44 Integrated PoE+

auto-sensing 10/100/1000Base-T RJ-45ports with fourdual-personality Gigabit

Uplink ports.

The HP ProCurve Switch 2910al-24G-PoE+ (J9146A), has 20 Integrated PoE+


Uplink ports.

Power

Fault

Locator

Console

LEDMode

ClearReset

PoE+Integrated10/100/1000Base-TPorts(1-48T) Portsare Auto-MDIX

Test

Tmp

Status

Dual-PersonalityPorts:10/100/1000-T(T)orSFP (S)

!

U s e

o n l y o n e

( T

o r S ) f o r e a c h

P o r t

PoE

Fan

45S 47S

46S 48S

*Spdmode: of f=10Mb ps, 2 f l as h =100Mb ps, on =1Gb ps , 3 f l ash =10Gb ps

FDx

Spd

PoE

Act

*

38 40

43413937

12108642

1197531

42 44

Link Mode L in k M od e

L ink Mode

47T45T

46T 48TLink Mode

StatusoftheBackMdl RPSEPSProCurveSwitch

2910bl-48G-PoE

J9148A

Link Mode

Link Mode242220181614

232119171513L ink Mode

L ink Mode 363432302826

353331292725L in k M od e

L in k M ode

Usr

PoE+

Power

Fault

Locator

Console

Spd mode: off = 10 Mbps

2 flash = 100 Mbps

on = 1 Gbps

3 flash = 10 Gbps

*

LEDMode

ClearReset

PoE+ Integrated 10/100/1000Base-T Ports (1 - 24T) Ports are Auto-MDIX

Test

Tmp

Status

Dual-Personality Ports: 10/100/1000-T (T) or SFP (S)

!

U s e

o n l y o n e

( T

o r S ) f o r e a c h

P o r t

PoE

Fan

21S 23S

22S 24S

FDx

Spd

PoE

Act

*

14 16

19171513

18 20

Li nk M od e 23T21T

22T 24TLink Mode

Status of the BackMdl RPSEPSProCurveSwitch

2910bl-24G-PoE

J9146A

Link Mode

Link Mode12108642

1197531L in k Mo de

L in k Mo de

Usr

Auxiliary Port

PoE+

Introduction



1-12


These switches also support some pre-standard PoE devices. While HP strives

to support as many non-standard devices as possible, some devices in the

market are designed in ways that are restrictive, or exclusive of the IEEE

standard and thus cannot be supported. For a list of these devices, see theFAQs for your switch model at www.hp.com/networking/support, and click on

faqs. This feature is the default and you must disable it if you do not want to

use it. For example:

ProCurve 2910al#(config) no power pre-std-detect



(You may want to bookmark this Web page for easy access in the future.)

The dual-personality ports have either auto-sensing 10/100/1000Base-T RJ-45

or mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of

themini-GBICportsare used thecorresponding RJ-45 port will notbe supplied

with PoE/PoE+ power.

Power Redundancy for the 2910al Switches


54V (EPS) circuits. If the 54V portion of the power supply fails, it will only shut

down the PoE connections. However, if the 12V portion of the power supply




HP Redundant/External Power Supplies (RPS/EPS) can be connected to the

2910al Switches for redundant 12 V system power (RPS) and to provide for

additional PoE+ provisioning. For RPS power, the 2910al Switches can be

connected to either an HP 620 RPS/EPS (J8696A) or HP 630 RPS/EPS

(J9443A). For additional PoE+ EPS power, only the 630 can be used. The 620

does not provide 54 V for PoE+, only 50 V for PoE, and the 2910al Switches

do not support connections to the 620 for EPS.

The 2910al switch provides up to 30W from each port (25.5W for PD, 4.5W for

cable dissipation); the number of ports that can be operated at full power is

limited to 12 ports at full power, and/or 24 ports at 15.4W. To increase the

capacity of the switch, an external power supply can be attached to double

the total system capacity to 24 ports at 30W, or 48 ports at 15.4W.

The power supplies for these switches are optimized to provide the most

efficient and cost effective solution.

Introduction







1-13


HP ProCurve 2915G Switch

The HP ProCurve Switch 2915-8G-PoE (J9562A), has 8 Integrated PoE auto-

sensing 10/100/1000Base-TX RJ-45 ports with two dual-personality GigabitUplink ports. There is no power redundancy for this switch.



default.


or mini-GBIC connectivity. The dual-personality ports do not support PoE.

IntroductionP E C biliti f th HP P d t



1-14


HP ProCurve 3500-PoE Switches


sensing 10/100 Base-T RJ-45 ports and four ports of Gigabit dual-personalityUplink ports, either RJ-45 or SFP.


sensing 10/100 Base-T RJ-45 ports with four ports of Gigabit dual-personality

Uplink ports, either RJ-45 or SFP.


devices, see the FAQs for your switch model. This feature is the default and

you must disable it if you do not want to use it. For example:

ProCurve(config# no power pre-std-detect

For more information, refer to the Management and Configuration Guidefor your switch at www.hp.com/networking/support.

The dual-personality ports have either auto-sensing 10/100 Base-T RJ-45 or

mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of


with PoE power.

Power Redundancy for the 3500 Switches












1-15


The HP ProCurve 3500-PoE Switches can be connected to a 620 RPS/EPS

(J8696A) 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 two

switches are connected to the RPS ports and both switches lose power at thesame time, they both receive redundant power. The 620 RPS/EPS unit can

provide all the power necessary to keep two switches running.

If maximum PoE power is to be used on all 48 ports, you must connect an HP

620 RPS/EPS, since the internal power supply only has enough power to

supply 24 ports with maximum wattage. In this case, there is no redundancy.

HP ProCurve 3500yl-PWR Switches

The HP ProCurve Switch 3500yl-48G-PWR (J8693A), has 44 Integrated PoE


Uplink ports.

The HP ProCurve Switch 3500yl-24G-PWR (J8692A), has 20 Integrated PoE


Uplink ports.


devices, see the FAQs for your switch model. This feature is the default and

you must disable it if you do not want to use it. For example:

ProCurve(config)# no power pre-std-detect

For more information, refer to the Management and Configuration Guidefor your switch at www.hp.com/networking/support.


or mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of


with PoE power.






1-16


Power Redundancy for the 3500yl PWR Switches


50V (EPS) circuits. If the 50V portion of the power supply fails, it will only shutdown the PoE connections. However, if the 12V portion of the power supply




The 3500yl-PWR Switches can be connected to a 620 RPS/EPS (J8696A) and

receive full redundantpowerfrom theRPS part of theunit forswitch operation

if the internal power supply in the switch fails. If two switches are connectedto the RPS ports and both switches lose power at the same time, they both

receive redundant power. The 620 RPS/EPS unit can provide all the power

necessary to keep two switches running.

If maximum PoE power is to be used on all 48 ports, it becomes necessary to

connect a 620 RPS/EPS, since the internal power supply only has enough

power to supply 24 ports with maximum wattage. In this case, there is no

redundancy.

HP ProCurve 3500yl-PoE+ Switches

The HP ProCurve Switch 3500yl-48G-PoE+ (J9311A), has 44 Integrated PoE


Uplink ports.

The HP ProCurve Switch 3500yl-24G-PoE+ (J9310A), has 20 Integrated PoE


Uplink ports.


devices, see the FAQs for your switch model. This feature is the default and you must disable it if you do not want to use it. For example:

ProCurve(config)# no power pre-std-detect




1-17




The dual-personality ports have either auto-sensing 10/100/1000Base-T RJ-45or mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of


with PoE power.

Power Redundancy for the 3500yl PoE+ Switches







The 3500yl-PoE+ Switches can be connected to an HP 630 RPS/EPS (J9443A)

and receive full redundant power from the RPS part of the unit for switch

operation if the internal power supply in the switch fails. The HP 630 RPS/EPS

unit can provide all the power necessary to keep only one switch running.

If maximum PoE+ power is to be used on all 48 ports, it becomes necessary

to connect a HP 630RPS/EPS, since theinternal power supply only has enough


redundancy.

HP E3800 PoE+ Switches

The HP E3800-48G-PoE+-4SFP+ Switch (J9574A), has 48 Integrated PoE auto-

sensing 10/100/1000Base-T RJ-45 ports with four SFP+ ports for installing HP

transceivers.

The E3800-24G-PoE+-2SFP+ Switch (J9573A), has 24 auto-sensing 10/100/

1000-T RJ-45 ports and two SFP+ ports for installing HP transceivers.






1-18

p

The HP E3800-48G-PoE+-4XG Switch (J9588A), has 48 Integrated PoE auto-

sensing 10/100/1000Base-T RJ-45 ports with four XG ports.

The E3800-24G-PoE+-2XG Switch (J9587A), has 24 auto-sensing 10/100/1000-

T RJ-45 ports and two XG ports.


devices, seethe FAQs foryourswitchmodel. This feature is disabled by default

and must be enabled to use it. For more information, refer to the Management

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

Power Redundancy for the E3800 PoE+ Switches





a redundant power supply for both the 12V and 54V circuits.

The E3800 PoE+ Switches can have a second power supply installed and can

support full redundant power should the primary power supply fail. The

second power supply can provide all the power necessary to keep the switch

running.

If maximum PoE+ power is to be used on all 48 ports, it becomes necessary

to install a second power supply, since a single power supply only has enough


redundancy. For detailed information on the power supplies see the HP E3800Switches Installation and Getting Started Guide. For information on PoE/

PoE+ usage see Chapter 12 “Planning and Implementation for the E3800

Switches” of this manual.







1-19

HP E5400zl/E8200zl Switches

The HP Switch E5406zl is a chassis that can hold up to six 24-port modules to

provide up to 144 10/100/1000Base-T RJ-45 ports for PoE/PoE+ power.

The HP Switch E5412zl is a chassis that can hold up to twelve 24-port modules

to provide up to 288 10/100/1000Base-T RJ-45 ports for PoE/PoE+ power.




1-20

The HP Switch E8206zl is a chassis that can hold up to six 24-port modules to

provide up to 144 10/100/1000Base-T RJ-45 ports for PoE/PoE+ power.




1-21

The HP Switch E8212zl is a chassis that can hold up to twelve 24-port modules

to provide up to 288 10/100/1000Base-T RJ-45 ports for PoE/PoE+ power.

N o t e The E5412zl chassis and the E8212zl chassis share a completely common

PoE/PoE+ implementation. Port counts, power supply wattages,

specifications, and functionality for these two platforms are the same with

respect to PoE/PoE+.

Power Redundancy for the E5400zl/E8200zl Switches

There are three types of power supplied by the Series E5400zl/E8200zl switch

power supplies:

■ 12V power or system power

■ 50V power for PoE power

■

54V power for PoE/PoE+ power




1-22

The 12V system power is used to operate the internal components of the

switch. The 50V PoE or54V PoE/PoE+ power is usedto power the PoE devices

connected to the modules.

It is important to provide a secondary power supply for redundancy purposes

for both the 12V and 50V or 54V circuits. The internal power supply in these

switches provides both the 12V (system) and 50V (PoE) or 54V (PoE+)

circuits. If the 12V (system) power fails the switch will shut down. If the 50V

or 54V fails, all PDs would lose power. Therefore, to keep the switch running

should one power supply, or either power source fail, you should install a

second power supply.

The E5406zl/E8206zl chassis can hold two internal power supplies and the

E5412zl/E8212zl chassis can hold four internal power supplies.

PoE/PoE+ Chassis Power Supplies

Why Mixing Power Supplies in chassis is NOT Supported

Using a combination of zl PoEpowersupplies J8712Aand J8713Aand a J9306A zl power supply in PoE/PoE+ systems is NOT supported. Use the J9306A zl

power supply for systems providing PoE and PoE+ power.

The reason the power supplies should not be mixed is because the J8712A and

J8713A power supplies provide PoE power at 50 volts (273 watts for J8712A

and 900 watts for J8713A). The J9306A zl power supply provides PoE/PoE+

power at 54 volts (300 watts at 110 volts and 900 watts at 220 volts). If you

installaJ8712AorJ8713AwithaJ9306Apowersupply,theydovoltagesharing.This means that the 54 volts of the J9306A zl power supply will supersede the

50 volts of the J8712A or J8713A power supplies. Only the J9306A will provide

PoE/PoE+ power.

For example, if an HP E5406zl switch on a 110 volt circuit has a J8712A

installed, and then a J9306A is inserted, the switch only provides 300 watts of

power, not 573 watts (273 watts + 300 watts). Only the J9306A provides PoE/

PoE+ power, which is 300 watts.

In another example, if an HP E8212zl switch on a 220 volt circuit has three

J8713A power supplies installed, and then a J9306A is inserted, the switch only

provides 900 watts of PoE/PoE+ power, not 3600 watts (2700 watts from the

three J8713A power supplies and 900 watts from the J9306A power supply).

Only the J9306A will provide PoE/PoE+ power.




1-23

PoE Chassis Power Supplies

N o t e HP highly recommends that the two types of power supplies are not mixed in

the same chassis.

For PoE only, the following power supplies can be used:

■ J8712A, which operates at 100-127 volts drawing a maximum of 11.5 amps,

or 200-240 volts drawing a maximum of 5.7 amps, and supplies 273 watts

of PoE power

■ J8713A, which operates at 200-220 volts drawing a maximum of 10 amps,

and supplies 900 watts of PoE power

Using two J8712As, or two J8713As, or a mix of both is supported (however

mixing power supplies is not recommended, see page 13-7 for more

information) and necessary to ensure the switch has both 12V (system power)

and 50V (PoE power) should one power supply fail. See the HP ProCurve

Switch zl Internal Power Supplies Installation Guide, for more information

and specifications on these power supplies.

When considering redundant power, also consider the power source for the

power supplies. Each power supply should be connected to a separate power

source circuit in order to supply complete redundancy. Should one circuit fail,

it would then be possible for the other circuit to continue supplying power to

the second power supply in the switch, keeping the switch running.

There is also an external power supply, the HP ProCurve Switch zl Power

Supply Shelf (J8714A), that can be connected to either the E5400zl switches

or the E8200zl switch for the purpose of adding extra or backup 50V (PoE power). The zl Power Supply Shelf will not supply any 12V (system power) to

any zl switch, since the switch is provided with 12V redundancy when more

than one power supply is installed in the chassis.

PoE/PoE+ Chassis Power Supply

For PoE or PoE+, the J9306A power supply can be used. This power supply

operates at 110-127V providing 300 watts of PoE/PoE+ power, or 200-240V providing 900 watts of PoE/PoE+ power. See the HP ProCurve Switch zl

Internal Power Supplies Installation Guide for more information and

specifications on this power supply.

There is also an external power supply, the HP ProCurve Switch zl Power

Supply Shelf (J8714A), that can be connected to either the E5400zl switches

or the E8200zl switches to add extra or backup 54V (PoE/PoE+) power. The

zl Power Supply Shelf will not supply any 12V (system power) to any zl switch,since the switch is provided with 12V redundancy when more than one power

supply is installed in the chassis.




1-24

Configuring PoE Redundancy


power supplies. Each power supply should be connected to a separate power source circuit in order to supply complete redundancy. Should one circuit fail,



When PoE redundancy is enabled, PoE redundancy occurs automatically. The

switch keeps track of power use and won’t supply PoE power to additional

PoE devices trying to connect if that results in the switch not having enough

power in reserve for redundancy if one of the power supplies should fail. Thereare three configurable redundancy methods:

■ No PoE redundancy enforcement (default). All available power can be

allocated.

■ Full redundancy: half of the totally available PoE power can be allocated

and half is held in reserve for redundancy. If power supplies with different

ratings are used, the highest-rated power supply is held in reserve to

ensure full redundancy.

■ N+1. One of the power supplies is held in reserve for redundancy. If a

single power supply fails, no powered devices are shut down. If power

supplies with different ratings are used, the highest-rated power supply is

held in reserve to ensure full redundancy.

N o t e When changing from one method to another, always check the current level

of PoE usage before implementing the change. The change could causeexisting connection to lose PoE power.


power supplies. Each power supply should be connected to a separate power

source circuit in order to supply complete redundancy. Should one circuit fail,



IntroductionHP ProCurve PoE and PoE+ Modules



1-25

HP ProCurve PoE and PoE+ ModulesHP ProCurve Switch xl PoE Module

The HP ProCurve Switch xl PoE Module (J8161A) is a module for the HP

ProCurve 5300xl Switch and has 24 PoE-ready auto-sensing 10/100-TX RJ-45

ports.

All 24 ports are capable of supplying PoE power. However, for the module

ports to be able to supply PoE power it first must be connected to an EPS porton a HP 600 Redundant and External Power Supply (J8168A), or the HP 610

External Power Supply (J8169A), hereafter referred to as the HP 600 RPS/EPS

or the HP 610 EPS, respectively.

ProCurve Switch zl 24 port Gig-T PoE Module (J8702A)

The ProCurve Switch zl 24 port PoE Module (J8702A) is for the HP ProCurve

E5400/E8200zl switches and has 24 PoE auto-sensing 10/100/1000-TX RJ-45

ports. All 24 ports are capable of supplying PoE power.

Std PoEPoE EPSStatus LED Mode

Link Mode Link Mode1 2 3 4 5 6 13 14 15 16 17 18

2322212019121110987

PoE-Ready 10/100-TX Ports (1-24) all ports are HP Auto-MDIX

24

hp procurvePoE

xl module

J8161A

xlmodule

PoE




1-26

ProCurve Switch zl 20 port Gig-T + 4 portmGBIC Module (J8705A)

The ProCurve Switch zl 20 port Gig-T + 4 port mGBIC Module (J8705A) is for the HP E5400/E8200zl switches and has 20 PoE auto-sensing 10/100/1000-TX

RJ-45 ports. All 20 ports are capable of supplying PoE power. Additionally

there are four mini-GBIC/SFP ports, which do not supply PoE power.

HP ProCurve 24-Port 10/100/1000 PoE+ zl Module

The HP ProCurve Switch zl PoE/PoE+ Module (J9307A) is for the HP E5400zl/

E8200zl switches and has 24 PoE/PoE+ auto-sensing 10/100/1000-TXRJ-45 ports. All 24 ports are capable of supplying PoE/PoE+ power.

HP ProCurve 20-Port 10/100/1000 PoE+/4 PortMiniGBIC zl Module

The HP ProCurve Switch zl PoE/PoE+ 20-port module (J9308A) is a module

for the HP E5400zl/E8200zl switches and has 20 PoE/PoE+ auto-sensing 10/

100/1000-TX RJ-45 ports capable of supplying PoE/PoE+ power. Additionallythere are four mini-GBIC/SFP ports, which do not supply PoE/PoE+ power.




1-27

HP ProCurve 24-Port 10/100 PoE+ zl Module

The HP ProCurve Switch zl PoE/PoE+ 24-port module (J9478A) is for the HP

E5400zl/E8200zl switches and has 24 PoE/PoE+ auto-sensing 10/100-TX RJ-45 ports capable of providing PoE/PoE+ power.

HP 24-Port Gig PoE+ v2 zl Module

HP Switch 24 port Gig PoE+ v2 zl Module (J9534A) is for the HP E5400zl/

E8200zl switches and has 24 twisted-pair ports with RJ-45 connectors for 10/

100/1000Base-T operationover Category 5 or better100-ohm UTPor STPcable

(category 5e recommended for Gigabit). All ports have the IEEE 802.3ab Auto

MDI/MDI-X (HP Auto-MDIX) feature and support IEEE 802.3at PoE+.

HP 20-Port Gig-T PoE+ / 4-Port SFP v2 zl Module

HP Switch 20 port Gig-T PoE+ & 4 port Gig SFP v2 zl Module (J9535A) is for

the HP E5400zl/E8200zl switches and has 20 twisted-pair ports with RJ-45

connectors for 10/100/1000Base-T ports that support PoE+ and 4 ports for

installing any of the supported HP mini-GBICs or SFPs. All RJ-45 ports have

the IEEE 802.3ab Auto MDI/MDI-X (HP Auto-MDIX) feature and supportPoE+. The mini-GBIC/SFP ports do not support IEEE 802.3at PoE+.




1-28

HP 20-Port PoE+ & 2-port SFP+ v2 zl Module

HP Switch 20-port PoE+ & 2-port 10Gig SFP+ v2 zl Module (J9536A) is for the

HP E5400zl/E8200zl switches and has 20 twisted-pair ports with RJ-45connectors for 10/100/1000Base-T ports that support PoE+ and 2 ports for

installing any of the supported HP SFP+ Transceivers. All RJ-45 ports have the

IEEE 802.3ab Auto MDI/MDI-X (HP Auto-MDIX) feature and support PoE+.

The SFP+ ports do not support IEEE 802.3at PoE+.

HP 24-Port 10/100 PoE+ v2 zl Module

HP Switch 24-Port 10/100 PoE+ v2 zl Module (J9547A) is for the HP E5400zl/ E8200zl switches and has 24 PoE/PoE+ auto-sensing 10/100-TX RJ-45 ports

capable of providing PoE/PoE+ power.All ports have the IEEE 802.3ab Auto

MDI/MDI-X (HP Auto-MDIX) feature and support IEEE 802.3at PoE+.

IntroductionQuick Reference Table



1-29

Quick Reference TableModel/ Device

Port Type Port Count/ PoE watts per

port1

Gig UplinkPorts

RPS/EPS Maximum Power Internaland External

Stackable Switches:

2520-8-PoE 10/100 84 @ 15.4 watts

8 @ 7.5 watts

22

N/A 67 watts available to ports1-8 (provided by theinternal source).

2520-24-PoE 10/100 24

12 @ 15.4 watts

24 @ 7.5 watts

4

2 - RJ45 only

22

N/A 195 watts available toports 1-24 (provided by theinternal source).

2520G-8-PoE 10/100/1000 8

4 @ 15.4 watts8 @ 7.5 watts

22 N/A 67 watts available to ports

1-8 (provided by theinternal source).

2520G-24-PoE 10/100/1000 24

12 @ 15.4 watts

24 @ 7.5 watts

42 N/A 195 watts available toports 1-24 (provided by theinternal source).

2600-8-PWR10/100 8

8 @ 15.4 watts

12 J8168A

J8169A

126 watts available toports 1-8 (provided by theinternal source). 408/2044

watts available, providedby the EPS source.

2626-PWR10/100 24

24 @ 15.4 watts

22 J8168A

J8169A

Redundant 408/2044 wattsavailable to ports 1-24.Only if the internal powersupply fails.

2650-PWR

10/100 4824 @ 15.4 watts

48 @ 15.4 watts

22 J8168AJ8169A

406 watts available to

ports 1-24 (provided by theinternal source). 408/2044 watts available to ports25-48 (provided by the EPSsource).

2610-24/12-PWR 10/100 8 @ 15.4 watts

12 @ 10.5 watts

4 J8168A

J8169A

126 watts available toports 1-12 (provided by theinternal source). 408/2044 watts available, provided

by the EPS source.

PoE

Power

Fault

Dual-PersonalityPort:

10/100/1000-T(T)orMini-GBIC(M)(Port9TisIEEEAutoMDI/MDIX)

Status

Reset Clear Console

PoE-Integrated10/100-TXPorts(1-8)(PortsareHPAuto-MDIX)

ProCurveSwitch2600-PWR

J8762A

*Spdmode: off=10Mbps, flash=100Mbps, on=1000Mbps

Link

Mode

LEDMode

Spd

Act

FDx

Test

EPS

Fan

2 3 4L i n k M o d e1 L i n k M o d e5 6 7 8 9TL i nk M o de

PoE

*

9M

! Useonlyone(TorM)forPort9

RPS




1-30

2610-24-PWR 10/100 24

24 @ 15.4 watts

4 J8168A

J8169A

406 watts available toports 1-24 (provided by theinternal source). 408/2044 watts available, providedby the EPS source.

2610-48-PWR 10/100 48

48 @ 15.4 watts

4 J8168A

J8169A

406 watts available toports 1-24 (provided by the

internal source). 408/204

4

watts available to ports25-48 (provided by the EPSsource).

2615-8-PoE 10/100 4 @ 15.4 watts

8 @ 7.5 watts

22 J9565A 67 watts available to ports1-8 (provided by theinternal source).

E2620-24-PPoE+

10/100/1000

24

4 @ 30 watts8 @ 15.4

12 @ 7.5 watts

2 N/A 126 watts internal only

E2620-24-PoE+

10/100/1000

24

24 @ 30 watts

2 J9443A 382 watts available toports 1-24 (provided by theinternal source). 388 wattsavailable as backup incase of failure, provided

by the external source.

E2620-48-PoE+

10/100/1000

48

24 @ 30 watts5

48 @ 15 watts

4 J9443A 382 watts available toports 1-48 (provided by theinternal source). 388 wattsavailable as backup incase of failure, providedby the external source.

2910al-24G-PoE

10/100/1000

24

24 @ 30 watts5 42 J9146A

382 watts available to ports 1-

24 (provided by the internalsource).

2910al-48G-PoE 10/100/1000 48

24 @ 30 watts5

48 @ 15 watts

42 J9148A 382 watts available to ports 1-48 (provided by the internal

source).

Model/ Device


port1

Gig UplinkPorts


Power

Fault

Locator

Console

Spd mode: off = 1 0 Mbps

2 flash= 100 Mbps

on = 1 Gbps

3 flash= 10 Gbps

*

LEDMode

ClearReset

PoE+ Integrated 10/100/1000Base-T Ports (1 - 24T) Ports are Auto-MDIX

Test

Tmp

Status


!

U s e o n l y o n e ( T o r S ) f o r e a c h P o r t

PoE

Fan

21S 23S

22S 24S

FDx

Spd

PoE

Act

*

14 16

19171513

18 20

Lin k M o de 23T21T

22T 24TLin k M o de

Status of the BackM dl R PSEPSProCurveSwitch

2910bl-24G-PoE

J9146A

L in k M od e

L in k M od e12108642

1197531L i n k M o d e

L i n k M o d e

Usr

Auxiliary Port

PoE+

Power

Fault

Locator

Console

LEDMode

ClearReset

PoE+Integrated10/100/1000Base-TPorts(1-48T)PortsareAuto-MDIX

Test

Tmp

Status


!

U s e o n l y o n e ( T o r S ) f o r e a c h P o r t

PoE

Fan

45S 47S

46S 48S

*Spdmode: off=10Mbps, 2flash=100Mbps,on=1Gbps, 3flash=10Gbps

FDx

Spd

PoE

Act

*

38 40

43413937

12108642

1197531

42 44

Link Mode Link Mode

L i n k M o d e

47T45T

46T 48TLink Mode

StatusoftheBackM dl R PSEPSProCurve Switch

2910bl-48G-PoE

J9148A

Lin k M od e

Lin k M od e242220181614

232119171513L i n k M o d e

L i n k M o d e 363432302826

353331292725L i n k M o d e

L i n k M o d e

Usr

PoE+




1-31

2915-8G-PoE 10/100/1000 4 @ 15.4 watts

8 @ 7.5 watts

22 J9562A 67 watts available to ports 1-8 (provided by the internal

source).

3500-24-PoE10/100

24

24 @ 15.4 watts 42 J8696A

398 watts available to ports 1-24 (provided by the internalsource). 388 watts availableas backup in case of failure,

provided by the externalsource.

3500-48-PoE 10/100 48

48 @ 15.4 watts

42 J8696A 786 watts available to ports 1-48 (provided by both the

internal and externalsources).

3500yl-24G-PWR

10/100/1000

24

24 @ 15.4 watts 4

2

J8696A

398 watts available to ports 1-24 (provided by the internalsource). 388 watts availableas backup in case of failure,

provided by the externalsource.

3500yl-48G-PWR 10/100/1000 48

24 @ 15.4 watts

48 @ 7.5 watts



3500yl-24G-PoE+

10/100/1000

24

24 @ 15.4 watts

24 @ 30 watts



3500yl-48G-PoE+

10/100/1000

48

48 @ 15.4 watts

26 @ 30 watts


internal and external

sources).

Model/ Device


port1

Gig UplinkPorts





1-32

E3800-24G-PoE+-2SFP+

E3800-24G-PoE+-2XG

10/100/1000

24

Depends on

how many

power supplies

and on what

voltage the

power supply is

connected to,

either 110 or220 voltage

2 None Up to 1080 watts of PoE/PoE+power across all RJ-45 portsdepending on the voltage thepower supply is connected

to, either 110 or 220 voltage

E3800-48G-PoE+-4SFP+

E3800-48G-PoE+-4XG

10/100/1000

48

Depends on

how many

power supplies

and on what

voltage the

power supply is

connected to,

either 110 or

220 voltage

4 None Up to 1080 watts of PoE/PoE+power across all RJ-45 portsdepending on the voltage thepower supply is connected

to, either 110 or 220 voltage

Chassis Switches:

E5406zl 10/100/1000 Depends on

which modules

and how manymodules.

Range of 24-144

Depends on

which modules

and how manymodules.

Range of 4-24

J8714A A maximum of 2 internalpower supplies up to 1800

watts and the external sourcecan provide up to 1800 wattsdepending on which power

supplies are installed.


which modules

and how many

modules.Range of 24-288

Depends on

which modules

and how many



watts and the external source

can provide up to 1800 wattsdepending on which power

supplies are installed.

Model/ Device


port1

Gig UplinkPorts



M d l/ P T P C / Gi U li k RPS/EPS M i P I l



1-33


which modules

and how many

modules.

Range of 24-144

Depends onwhich modulesand how many



watts and the external sourcecan provide up to 1800 watts.

8212zl 10/100/1000 Depends on

which modules

and how many

modules.

Range of 24-288

Depends on

which modules

and how many

modules.

Range of 4-48

J8714A A maximum of 4 internal

power supplies up to 3600

watts and the external

source can provide up to

1800 watts depending on

which power supplies are

installed.

Modules:

xl PoE Module 10/100 243

24 @ 15.4 watts

0 J8168A

J8169A

408/2044 watts available to

ports

1-24.

zl 24 port Gig-T PoE

Module (J8702A)

10/100/1000 24

24 @ 15.4 watts

0 J8168A

J8169A

Depends on voltage (100-127

or 200-240)

zl 20 port Gig-T + 4 port

mGBIC Module (J8705A)

10/100/1000 2020 @ 15.4 watts

0-4 Depends on voltage (100-127or 200-240)

Model/ Device


port1

Gig UplinkPorts


S t d P o EPoE EPSStatusLEDMode

L i nk M o de Link Mode1 2 3 4 5 6 13 14 15 16 17 18

2322212019121110987

PoE-Ready10/100-TXPorts(1-24)all portsareHPAuto-MDIX

24

hpprocurve

PoExlmodule J8161A

xlmodule

PoE


Model/ Port Type Port Count/ Gig Uplink RPS/EPS Maximum Power Internal



1-34

zl PoE+ 24-Port Module

(J9307A)

10/100/1000 24 up to 30

watts@ 200-

240v

0 J9306A Depends on voltage (100-127or 200-240) and if using PoE or

PoE+

zl PoE+ 20-Port Module

(J9308A)

10/100/1000 20 up to 30

watts@ 200-240v

0-4 J9306A Depends on voltage (100-127

or 200-240) and if using PoE orPoE+

zl PoE/PoE+ 24-Port

Module (J9478A)

10/100 24 up to 30

watts@ 200-

240v

0 J9306A Depends on voltage (100-127or 200-240) and if using PoE or

PoE+

v2 zl 24 port Gig PoE+

Module (J9534A)

10/100/1000 24 up to 30

watts@ 200-

240v

J9306A Depends on voltage (100-127or 200-240) and if using PoE or

PoE+

v2 zl 20 port Gig-T PoE+ &

4 port Gig SFP Module(J9535A)

10/100/1000 20 up to 30

watts@ 200-240v

0-4 J9306A Depends on voltage (100-127

or 200-240) and if using PoE orPoE+

v2 zl 20-port PoE+ & 2-

port 10Gig SFP+ Module

(J9536A)

10/100/1000 20 up to 30

watts@ 200-

240v

0-2 J9306A Depends on voltage (100-127or 200-240) and if using PoE or

PoE+

v2 zl 24-Port 10/100 PoE+

Module (J9547A)

10/100 24 up to 30

watts@ 200-

240v

0-24 J9306A Depends on voltage (100-127or 200-240) and if using PoE or

PoE+

Model/ Device


port1

Gig UplinkPorts



Model/ Port Type Port Count/ Gig Uplink RPS/EPS Maximum Power Internal



1-35

1 Redundant power and extra PoE power can be added by connecting a Redundant and external power supply.

2 The uplink ports on this switch are dual-personality. If the RJ-45 port is used the mini-GBIC port is disabled.

3 The PoE power for this module must come from an external power supply, it does not have any internal PoE power.

4 The wattage available to each switch depends on the number of switches connected to the EPS.

5 An EPS is required for extra PoE+ power to get 24 ports at 30 watts or 48 ports at 15.4 watts.

Model/ Device


port1

Gig UplinkPorts




2

O ti g R l



2-1

Operating Rules

This chapter discusses the operating rules and characteristics of the HP

ProCurve product capabilities, switches and external power supplies. The

following products are discussed:

■ The HP ProCurve 2520-PoE Switches

■ The HP ProCurve 2520G-PoE Switches

■ The HP ProCurve 2600-PWR Switches

■ The HP ProCurve 2610-PWR Switches

■ The HP ProCurve 2615-8-PoE Switch

■ The HP E2620 PoE+ Switches

■ The HP ProCurve Redundant and External Power Supplies, HP 600 RPS/

EPS and 610 EPS

■ The HP ProCurve 1500 W zl PoE+ Power Supply■ The HP ProCurve 2910al-PoE+ Switches

■ The HP ProCurve 2915-8G-PoE Switch

■ The HP ProCurve 3500-PoE Switches

■ The HP ProCurve 3500yl-PWR Switches

■ The HP ProCurve 3500yl-PoE+ Switches

■ The HP ProCurve External and Redundant Power Supply, HP 620 RPS/

EPS

■ The HP E3800 PoE+ Switches

■ The HP ProCurve E5400zl/E8200zl Switches

■ The HP ProCurve Power Supply Shelf

■ The HP ProCurve Redundant and/or External Power Supply, HP 630 RPS/

EPS

Operating RulesOverview of Switch PoE Operation



2-2

Overview of Switch PoE Operation

■ The Switch 2520-8-PoE provisions (allocates power to) ports 1-8 with 67watts of power for PoE applications compatible with the IEEE 802.3af

standard. The Switch 2520-24-PoE provisions ports 1-24 with 195 watts of

power for PoE applications compatible with the IEEE 802.3af standard.

■ The Switch 2520G-8-PoE provisions ports 1-8 with 67 watts of power for

PoE applications compatible with the IEEE 802.3af standard. The Switch

2520G-24-PoE provisions ports 1-24 with 195 watts of power for PoE

applications compatible with the IEEE 802.3af standard.

■ The Switch 2626-PWR provisions ports 1-24 with 406 watts of power for

PoE applications compatible with the IEEE 802.3af standard. The Switch

2650-PWR provisions ports 1-48 with 406 watts. This reduces the per port

wattage by half as compared to the Switch 2626-PWR.

■ The Switch 2610-24/12PWR provisions ports 1-12 with 126 watts of power

for PoE applications compatible with the IEEE 802.3af standard. The

Switch 2610-24-PWR provisions ports 1-24 with 406 watts and the Switch

2610-48-PWR provisions ports 1-48 with 406 watts. This reduces the per port wattage by half as compared to the Switch 2610-24-PWR.

■ The Switch 2615-8-PoE provisions (allocates power to) ports 1-8 with 67

watts of power for PoE applications compatible with the IEEE 802.3af

standard.

■ The Switch E2620-24-PPoE+ can supply up to 126 watts of PoE+ power

across the 12 ports. The Switch E2620-24-PoE+ can supply up to 382 watts

of PoE+ power across the 24 ports. The Switch E2620-48-PoE+ can supplyup to 382 watts of PoE+ power across the 48 ports for PoE+ applications

compatible with the IEEE 802.3at standard.

■ The Switch 2910al-24G-PoE+ can supply up to 382 watts of PoE+ power

across the 24 ports. The Switch 2910al-48G-PoE+ can supply up to 382

watts of PoE+ power across the 48 ports for PoE+ applications compat-

ible with the IEEE 802.3at standard.

■ The Switch 2915-8G-PoE provisions ports 1-8 with 67 watts of power for

PoE applications compatible with the IEEE 802.3af standard.

■ The Switch 3500-24-PoE can supply up to 398watts of PoE power across

the 24 ports. The Switch 3500-48-PoE can supply up to 398 watts of PoE

power across the 48 ports.

■ The Switch 3500yl-24G-PWR can supply up to 398 watts of PoE power

across the 24 ports. The Switch 3500yl-48G-PWR can supply up to 398

watts of PoE power across the 48 ports.

Operating RulesOverview of Switch PoE Operation

■ The Switch 3500yl-24G-PoE+ can supply up to 398 watts of PoE power

across the 24 ports The Switch 3500yl 48G PoE+ can supply up to 398



2-3

across the 24 ports. The Switch 3500yl-48G-PoE+ can supply up to 398

watts of PoE power across the 48 ports for PoE+ applications compatible

with the IEEE 802.3at standard.

■ The HP E3800-24G-PoE+-2SFP+ Switch, HP E3800-48G-PoE+-4SFP+

Switch, HP E3800-24G-PoE+-2XG Switch, and the HP E3800-48G-PoE+-

4XG Switch can supply up to 1080 watts of PoE/PoE+ power across all

RJ-45 ports depending on the voltage the power supply is connected to,

either 110 or 220 voltage, for PoE+ applications compatible with the IEEE

802.3at standard.

• If the power supply is connected to 110 volts, then the power supply

will supply 700 watts to the switch.

• if the power supply is connected to 220 volts, then the power supply

will supply 1000 watts to the switch.

For detailed information on the power supplies see the HP E3800

Switches Installation and Getting Started Guide. For information on

PoE/PoE+ usage see Chapter 12 “Planning and Implementation for the

E3800 Switches” of this manual.

■ The E5406zl/E8206zl switches can supply up to 1800 watts of PoE power plus an additional 1800 watts with the addition of two external J9306A

power supplies.

■ The 5412zl/8212zl switches can supply up to 3600 watts of PoE power,

depending on which power supply is installed.

• The J8712A power supply provides up to 273 watts of PoE power. If

two J8712As are installed they can supply up to 546 watts of PoE

power and if four are installed they can supply up to 1092 watts of PoE power.

• The J8713A power supply provides up to 900 watts of PoE power. If

two J8713As are installed they can supply up to 1800 watts of PoE

power and if four are installed they can supply up to 3600 watts of

PoE power. The two types of power supplies can be mixed (although

not recommended), that is, one or two J8712As and one or two

J8713As can be installed at the same time depending on which of the

Series E5400zl/E8200zl Switches are being used.

• The J9306A power supply provides up to 300 watts of PoE/PoE+

power at 110-127V and 900 watts of PoE/PoE+ power at 200-240V.

Mixing this power supply with any other type of power supply is NOT

supported.

N o t e HP highly recommends that power supplies are not mixed in the sameE5400zl/E8200zl chassis or Power Supply Shelf.

Operating RulesConfiguring PoE/PoE+ Power Using the CLI

C fig i g P E/P E P U i g th



2-4

Configuring PoE/PoE+ Power Using the

CLI

Allocating PoE Power by Class or User-defined Power Level

The 2910al, 3500, 3500yl, E3800 and the E5400zl/E8200zl switches provide

maximum flexibility by allowing the switch to detect and display 802.3af or

802.3at device class, but does not enforce the power level specified in eachdevice class. In addition to this, the switch can allocate PoE/PoE+ power

according to the power level specified in each device class or a level defined

by the customer.

There are three methods to allocate PoE/PoE+ power:

■ By device usage (default). The switch does not enforce the power limit.

■ By power level specified in 802.3af or 802.3at. The device class will be

detected according to the specification and power limits will be enforced.

■ By user-defined. Configurable per port values or a range of ports to power

level 1-17 watts or 1-33 watts for the 2910al and 3500yl-PoE+ Switches.

Incorrectly setting the PoE/PoE+ maximum value to be less than the

device requires will result in a PoE/PoE+ fault.

For more information, see the Management and Configuration Guide for

your switch at:

www.hp.com/networking/support

Switch Port Priority

Using a port-number priority method, a lower-numbered port has priority

over a higher-numbered port within the same configured priority class, for

example, port A1 has priority over port A5 if both are configured with High

priority.

A port can be assigned a power priority that alters the assignment of power

to it by the switch. For more information, see the Management and

Configuration Guide for your switch at:


Operating RulesConfiguring PoE/PoE+ Power Using the CLI

Switch Priority Class







2-5

Using a priority class method, a power priority of Low (the default), High, or

Critical is assigned to each enabled PoE port. This assignment is done through

the command line interface of theswitchand alters thehardwareport-number

priority for power allocation.

■ Low (default) - This priority class receives power only if all other priority

classes are receiving power. If there is enough power to provision PDs on

only some of the ports with a low priority, then power is allocated to the

ports in ascending order, beginning with the lowest-numbered port in the

class until all available power is in use.

■ High - This priority class receives power only if all PDs on ports assignedwith a critical priority are receiving full power. If there is not enough

power to provision PDs on ports assigned with a high priority, then no

power goes to the low priority ports. If there is enough power to provision

PDs on only some of the high priority ports, then power is allocated to the

high priority ports in ascending order, beginning with lowest-numbered

high priority port, until all available power is in use.

■ Critical - This priority class is the first to be allocated power. If there is

not enough power to provision PDs on all of the ports configured for this

class, then no power goes to “High or Low” priority ports. If there is

enough power to provision PDs on only some of the critical ports, then

power is allocated to the critical ports in ascending order, beginning with

the lowest-numbered port in the class.


your switch at:


Threshold

You can configure one of the following thresholds:

■ A global power threshold that applies to all modules on the switch.

This setting acts as a trigger for sending a notice when the PoE power consumption on any PoE module installed in the switch crosses the

configured global threshold level. (Crossing the threshold level in

either direction—PoE power usage either increasing or decreasing—

triggers the notice.) The default setting is 80%.

■ A per-slot power threshold that applies to an individual PoE module

installed in the designated slot. This setting acts as a trigger for

sending a notice when the module in the specified slot exceeds or

goes below a specific level of PoE power consumption.

Operating RulesPoE Power Characteristics

For example if the threshold is set at 50%, the switch informs you that the

switch has exceeded the threshold when 51% of available PoE power is being





2-6

used.

For more information, see the Management and Configuration Guide for your switch at:


PoE Power Characteristics

Line Loss

A certain amount of power is consumed by the resistance of the wire in the

LAN cable connected from the switch to the powered device (typically less

than 16% loss), which can be influenced by cable length, quality, and other

factors. The IEEE 802.3af specification has addressed loss of power by

providing more power than a powered device requires. As well, dependingupon the classification (Class 0-4) of the device, the switch will provide more

or less power to address the specific power needs of that end device.

PD Power Classification

A PD is classified based on the maximum power it draws across all input

voltages and operational modes. The most common class is 0, in which the

switch will allow a maximum draw of 15.4 watts per port. As an example, 15.4

watts - Power Loss (16%) = 12.95 watts. See Table 2-1.

Table 2-1. Power Usage

Class Usage Minimum Power Levelsat Output of PSE

Range of MaximumPower required by

the PD

0 Default 15.4 watts 0.44 to 12.95 watts

1 Optional 4.0 watts 0.44 to 3.84 watts



4 Optional 30 watts 0.05 to 24.00 watts

Operating RulesPoE Power Characteristics

As you can see in the table for classifications 0-3, any 802.3af compliant PD

will never require more than 12.95 watts. The switch provides a minimum of





2-7

15.4 watts at the port in order to guarantee enough power to run a device, after

accounting for line loss. For classification 4, the switch provides 30 watts at

the port in order to guarantee enough power to run a device, after accounting

for line loss.

PD Power Requirements

When a PD is initially connected to a PoE port, a minimum of 17 watts for PoE

and 33 watts for PoE+ of available power is required to begin the power-up

sequence. This 17 or 33 watts is needed to determine the type of PD requesting power (see “PD Power Classification” on page 2-6). Once the power

classification is determined and power is supplied, any power beyond the

maximum power requirements for that class of PD is available for use.

In the default switch configuration all PoE/PoE+ ports have a Low priority. If

the switch has less than 17 W of PoE power available or 33 W for PoE+, the

switch transfers power from lower-priority ports to higher-priority ports.

See “Switch Priority Class” on page 2-5 for information on the use of PoE port

priority classifications. Within each priority class, a lower numbered port is

supplied power before a higher numbered port.

Disconnecting a PD from a port causes the switch to stop providing power to

that port and makes that power available to other ports configured for PoE

operation.

Operating RulesProvisioning Power for PoE

Provisioning Power for PoE



2-8

Provisioning Power for PoE

All of these PoE switches support an external power supply that can provide

either redundant or extra PoE power. It is important to understand how PoE

power is provisioned in order to use these external power supplies efficiently.

The following chapters will discuss this in detail.

By connecting an external power supply you can optionally provision more

PoE wattage per port and or supply the switch with redundant 12V power to

operate should an internal power supply fail.

By installing a second power supply in the E5406zl/E8206zl or a third power

supply in a E5412zl/E8212zl chassis, depending on how many PoE ports are

being supplied with power, the switch can have redundant power if one power

supply fails. A Power Supply Shelf (external power supply) can also be

connected to the E5400zl/E8200zl switches to provide extra or redundant PoE

power.

For example, if the 5406zl has two 24-port PoE modules (J8702A) installed,

and all ports are using 15.4 watts, then the total wattage used is 739.2 watts

(48 x 15.4). To supply the necessary PoE wattage a J8713A power supply is

installed in one of the power supply slots.

To gain redundant power, a second J8713A must be installed in the second

power supply slot. If the first power supply fails, then the second power supply

can supply all necessary power.


Maximum PoE Power

The Switch 2520-8-PoE and the Switch 2520G-8-PoE provision 8 ports with its

PoE power supply of 67 watts for PoE applications compatible with the IEEE

802.3af standard andsome pre-standardPoE devices. The Switch 2520-24-PoEand the Switch 2520G-24-PoE provision ports 1-24 with 195 watts of power for

PoE applications compatible with the IEEE 802.3af standard.

N o t e There is no external power supply available for these switches.


Table 2-2. Maximum Power Allocations

PoE Devices Internal Only



2-9

PoE Power Requirements

It is important to understand the PoE power requirements of these switches

because if the PoE power is not planned and implemented correctly, end

devices connected to the PoE switch ports may not receive power if a switch

PoE power source failure occurs or if the switch is over provisioned.

Since there is no external power supply available for these switches it is veryimportant to understand that the 67 watts for the 8-port switches and the 195

watts for the 24-port switches are all there is for PoE power. Therefore, proper

provisioning is very important.

HP ProCurve 2600-PWR Switches

Maximum PoE Power

The Switch 2600-8-PWR provisions (allocates power to) 8 ports with its

internal PoE power supply of 126 watts for PoE applications compatible with

the IEEE 802.3af standard and some pre-standard PoE devices.The Switch

2626-PWR provisions ports 1-24 with 406 watts of power for PoE applications

compatible with the IEEE 802.3af standard. The Switch 2650-PWR provisions

ports 1-48 with 406 watts for PoE. This reduces the per port wattage by half

as compared to the Switch 2626-PWR.

However, by connecting a 600 RPS/EPS or a 610 EPS, you can optionally

provision ports 25-48 with 408 watts of external PoE power, thereby bringing

the per port wattage up to 15.4 watts per port, unless you have the other EPS

port of the 600 RPS/EPS or the other port of a pair on the 610 EPS connected

to a HP ProCurve PoE device. In this case you cannot provision the full 408

watts to the Switch 2650-PWR, only half, or 204 watts.


PoE for Switches2520-8-PoEand

2520G-8-PoE

67 watts available toports 1-8.

PoE for Switch2520-24-PoE

and

2520G-24-PoE




PoE Devices Internal Only Internal and EPS EPS Only



2-10


It is important to understand the PoE power requirements of these switches


devices connected to the PoE switch ports may not receive power if a switchPoE power source failure occurs or if the switch is over provisioned.

TheSwitch2600-8-PWR has8 ports andits internal PoEpowersupply provides

126 watts across all 8 ports. If a 600 RPS/EPS or a 610 EPS device is connected

to the Switch 2600-8-PWR for the purpose of supplying external power to the

PoE portion of the switch, there will be either 408 watts or 204 watts of power

available should the switch’s internal PoE power supply fail. If a single switch

is connected to the EPS ports on the 600 RPS/EPS or a single port of a pair on

the 610 EPS, 408 watts are available, providing fully redundant PoE power to

the switch.

If two switch devices are connected to the EPS ports on the 600 RPS/EPS or

to both ports of a pair on the 610 EPS, only 204 watts are provided to the switch

if the internal PoE power supply fails. This will still provide enough wattage

to be a full PoE backup for the Switch 2600-8-PWR because it only needs 126

watts.


PoE for Switch2600-8-PWR


126 watts available toports 1-8 (provided by theinternal source). 408/204*watts available, providedby the EPS source.

The internal power supply hasfailed, and the EPS provides408/204* watts to ports 1-8.

PoE for Switch2626-PWR


Redundant 408/204*watts available to ports 1-24. Only if the internalpower supply fails.

408/204* watts available toports 1-24. (The EPS providesPoE power to ports 1-24 only if

the internal power supplyfails.)

PoE for Switch2650-PWR


406 watts available toports 1-24 (provided by

the internal source). 408/204* watts available toports 25-48 (provided by

the EPS source).

The internal power supply hasfailed, and the EPS provides408/204* watts to ports 1-48.Note that 38 watts of thispower are always allocatedexclusively to ports 1-24 or 25-48.)

* If both EPS ports on the 600 RPS/EPS or both ports of a pair on the 610 EPS are connected to switches, each switchcan receive 204 watts of power. If a single switch is connected to the EPS ports, that switch can receive 408 watts.


The Switch 2626-PWR has 24 ports and its internal PoE power supply provides

406 watts across all 24ports. If a 600 RPS/EPS ora 610 EPS device is connected

to the Switch 2626-PWR for the purpose of supplying external power to the



2-11

to the Switch 2626 PWR for the purpose of supplying external power to the

PoE portion of the switch, there will be either 408 watts or 204 watts of power

available should the switch’s internal PoE power supply fail. If a single switch

is connected to the EPS ports on the 600 RPS/EPS or a single port of a pair on

the 610 EPS, 408 watts are available, providing fully redundant PoE power to

the switch. If two switch devices are connected to the EPS ports on the 600

RPS/EPS orto both ports of a pair on the 610 EPS, only 204 watts are provided

to the switch if the internal PoE power supply fails.

The Switch 2650-PWR PoE power requirements are different. This switch has

48 ports and the internal PoE power supply supplies 406 watts across all 48 ports. The switch reserves 38 watts for either ports 1-24 or 25-48, so that

neither set of ports receives the entire 406 watts.

By connecting a 600 RPS/EPS or a 610 EPS to the Switch 2650-PWR, more PoE

power is provided to the switch. With the 600 RPS/EPS or the 610 EPS

connected to the Switch 2650-PWR, the internal PoE power supply provides

the first 24 ports (1-24) with 406 watts and the 600 RPS/EPS or the 610 EPS

supplies the second 24 ports (25-48) with 408 or 204 watts (408 watts if onlyone switch is connected to the EPS ports; 204 watts if two switches are

connected to the EPS ports). If the internal PoE power supply in the 2650-

PWR switch fails, 408 watts or 204 watts are provided to ports 1-48. 38 watts

of power are always allocated to ports 1-25 or 25-48.

HP ProCurve 2610-PWR Switches

Maximum PoE Power

The Switch 2610-24/12PWR provisions (allocates power to) ports 1-12 with

126 watts of power for PoE. The Switch 2610-24-PWR provisions ports 1-24

with 406 watts of power for PoE and the Switch 2610-48-PWR provisions ports

1-48 with 406 watts of power for PoE. This reduces the per port wattage by

half as compared to the Switch 2610-24-PWR. These switches support PoE

applications compatible with the IEEE 802.3af standard and some pre-standard devices.

However, by connecting a 600 RPS/EPS or a 610 EPS, you can optionally

provision ports 25-48 on the 2610-48-PWR switch with 408 watts of external

PoE power, thereby bringing the per port wattage up to 15.4 watts per port,

unless you have the other EPS port of the 600 RPS/EPS or the other port of a

pair on the 610 EPS connected to a HP ProCurve PoE device. In this case you

cannot provision the full 408 watts to the Switch 2610-48-PWR, only half, or 204 watts.






2-12


The Switch 2610-24/12PWR has 24 ports of which 1-12 can be used for PoE

and its internal PoE power supply provides 126 watts across 12 ports. If a 600

RPS/EPS or a 610 EPS device is connected to the Switch 2610-24/12PWR for

the purpose of supplying external power to the PoE portion of the switch,

there will be either 408 watts or 204 watts of power available should the

switch’s internal PoE power supply fail. If a single switch is connected to the

EPS ports on the 600 RPS/EPS or a single port of a pair on the 610 EPS, 408

watts are available, providing fully redundant PoE power to the switch.

If two switch devices are connected to the EPS ports on the 600 RPS/EPS or

to both ports of a pair on the 610 EPS, only 204 watts are provided to the switch

if the internal PoE power supply fails. This will still provide enough wattage

to be a full PoE backup for the Switch 2610-24/12PWR because it only needs

126 watts.

The Switch 2610-24-PWR has 24 ports and its internal PoE power supply

provides 406 watts across all 24 ports. If a 600 RPS/EPS or a 610 EPS device

is connected to the Switch 2610-24-PWR for the purpose of supplying external

power to the PoE portion of the switch, there will be either 408 or 204 wattsof power available should the switch’s internal PoE power supply fail. If a

y y

PoE for Switch2610-24/12PWR

126 watts available toports 1-12


the internal source). 408/204* watts available,provided by the EPSsource.

The internal power supply hasfailed, and the EPS provides408/204* watts to ports 1-12.



Redundant 408/204*watts available to ports 1-24. Only if the internal

power supply fails.

408/204* watts available toports 1-24. (The EPS providesPoE power to ports 1-24 only if

the internal power supplyfails.)




the internal source). 408/204* watts available toports 25-48 (provided by

the EPS source).

The internal power supply hasfailed, and the EPS provides408/204* watts to ports 1-48.Note that 22 watts of thispower is always allocatedexclusively to ports 1-24 or 25-

48.)

* If both EPS ports on the 600 RPS/EPS or both ports of a pair on the 610 EPS are connected to switches, each switchcan receive 204 watts of power. If a single switch is connected to the EPS ports, that switch can receive 408 watts.


single switch is connected to the EPS ports on the 600 RPS/EPS or a single

port of a pair on the 610 EPS, 408 watts are available, providing fully redundant

PoE power to the switch. If two switch devices are connected to the EPS ports



2-13

p p

on the 600 RPS/EPS or to both ports of a pair on the 610 EPS, only 204 watts

are provided to the switch if the internal PoE power supply fails.

The Switch 2610-48-PWR PoE power requirements are different. This switch

has 48 ports and the internal PoE power supply supplies 406 watts across all

48 ports. The switch reserves 22 watts for either ports 1-24 or 25-48, so that

neither set of ports receives the entire 406 watts.

By connecting a 600 RPS/EPS or a 610 EPS to the Switch 2610-48-PWR, more

PoE power is provided to the switch. With the 600 RPS/EPS or the 610 EPSconnected to the Switch 2610-48-PWR, the internal PoE power supply

provides the first 24 ports (1-24) with 406 watts and the 600 RPS/EPS or the

610 EPS supplies the second 24 ports (25-48) with 408 or 204 watts (408 watts

if only one switch is connected to the EPS ports; 204 watts if two switches are

connected to the EPS ports). If the internal PoE power supply in the 2610-48-

PWR switch fails, 408 watts or 204 watts are provided to ports 1-48. 22 watts

of power are always allocated to ports 1-25 or 25-48. See page 5-7.

HP ProCurve 2615-8-PoE Switch

Maximum PoE Power

The Switch 2615-8-PoE provisions 8 ports with its PoE power supply of 67

watts for PoE applications compatible with the IEEE 802.3af standard and

some pre-standard PoE devices.




It is important to understand the PoE power requirements of this switch


devices connected to the PoE switch ports may not receive power if a switchPoE power source failure occurs or if the switch is over provisioned.





Since there is no external power supply available for this switch, PoE power

is limited to 67 watts provisioned across all 8 ports. Therefore, proper




2-14

HP E2620-PoE+ Switches

Maximum PoE+ Power

The Switch E2620-24-PPoE+ provisions (allocates power to) ports 1-12 with

126 watts of power for PoE and PoE+ applications compatible with the IEEE

802.3af and the 802.3at standard and some pre-standard devices. The Switch

E2620-24-PoE+ provisions ports 1-24 with 382 watts. The Switch E2620-48-PoE+ provisions ports 1-48 also with 382 watts. This reduces the average per

port wattage by half as compared to the Switch E2620-24-PoE+.

An external power supply, the HP 630 Redundant and/or External (HP 630

RPS/EPS) power supply (J9443A ) can be connected to either of the E2620-24-

PoE+ or the E2620-48-PoE+ switches to provide redundant or extra PoE+

power. The E2620-24-PPoE+ does not support external PoE+ power.

Table 2-6. Maximum Power Allocations for the E2620 Switches

PoE+ Power Requirements

The Switch E2620-24-PPoE+ has 24 ports of which 1-12 only can be used for

PoE+ power, with an internal PoE power supply that provides 126 watts. The

Switch E2620-24-PoE+ has 24 ports with an internal PoE power supply that

provides 382 watts of power across all 24 ports. The Switch 2620-48-PoE+ has

48 ports with 382 watts of power across all 48 ports. The HP 630 RPS/EPS can

provide an extra 388 watts for a total of 770 watts.

PoE Devices Internal Only Internal and External External Only

PoE for SwitchE2620-24-PPoE+


Internal power only. Internal power only.

PoE for SwitchE2620-24-PoE+


770 watts available to ports 1-24(provided by the internal and

external source). 388 wattsavailable as backup in case offailure, provided by the external

source.

The internal power supplyhas failed, 388 watts

available to ports 1-24 from the external source.

PoE for SwitchE2620-48-PoE+


770watts available to ports 1-48(provided by the internal and

external source).




PoE/PoE+ Allocation Using LLDP Information

A PoE port can automatically configure certain PoE+ link partner devices if

th d i t d ti i g f it P E d



2-15

the device supports advertising of its PoE needs.

By enabling PoE LLDP detection, available information about the power

requirements of the PD may be used by the switch to configure the power

allocation. Theinitial configuration forPoE ports maychange if more accurate

configuration information is provided by way of LLDP.


your switch at www.hp.com/networking/support.

HP ProCurve 2910al PoE+ Switches

Maximum PoE Power

The Switch 2910al-24G-PoE+ provisions (allocates power to) ports 1-24 with


802.3af and the 802.3at standard and some pre-standard devices. The Switch

2910al-48G-PoE+ provisions ports 1-48 with 382 watts. This reduces the

average per port wattage by half as compared to the Switch 2910al-24G-PoE+.

An external power supply, the HP ProCurve 630 Redundant and/or External

(HP ProCurve 630 RPS/EPS) power supply (J9443A ) can be connected to

either of the 2910al PoE+ switches to provide redundant or extra PoE+ power.

Table 2-7. Maximum Power Allocations for the 2910al Switches


PoE for Switch2910al-24G-PoE


770 watts available to ports 1-24(provided by the internal andexternal source). 388 watts

available as backup in case offailure, provided by the external

source.



PoE for Switch

2910al-48G-PoE

382 watts available to

ports 1-48.

770 watts available to ports 1-48

(provided by the internal andexternal source).

The internal power supply

has failed, 388 wattsavailable to ports 1-48 from

the external source.



The Switch 2910al-24G-PoE+ has 24 ports with an internal PoE power supply

that provides 382 watts of power across all 24 ports The Switch 2910al 48G





2-16

that provides 382 watts of power across all 24 ports. The Switch 2910al-48G-

PoE+ has 48 ports with 382 watts of power across all 48 ports. The HPProCurve 630 RPS/EPS can provide an extra 388 watts for a total of 770 watts.





requirements of the PD may be used by the switch to configure the power allocation. Theinitial configuration forPoE ports maychange if more accurate




HP ProCurve 2915-8G-PoE Switch

Maximum PoE Power

The Switch 2915-8G-PoE provisions 8 ports with its PoE power supply of 67

watts for PoE applications compatible with the IEEE 802.3af standard and

some pre-standard PoE devices.




It is important to understand the PoE power requirements of this switch


devices connected to the PoE switch ports may not receive power if a switch

PoE power source failure occurs or if the switch is over provisioned.


PoE for Switch2915-8G-PoE



Since there is no external power supply available for this switch, PoE power

is limited to 67 watts provisioned across all 8 ports. Therefore, proper






2-17


Maximum PoE Power

The HP ProCurve 3500-24-PoE switch provisions (allocates power to) ports

1-24 with 398 watts of power for PoE applications compatible with the IEEE

802.3af standard and some pre-standard devices. The HP ProCurve 3500-48-

PoE switch provisions ports 1-48 with 398 watts. This only allows half the per- port wattage as is available on the 3500-24-PoE switch.

An external power supply, the HP ProCurve 620 RPS/EPS (J8696A), can be

connected to either of the HP ProCurve 3500-PoE switches to provide

redundant or extra PoE power. The 620 RPS/EPS can be connected to up to

two switches and provide 388 watts of 50V power to each switch.

Table 2-9. Maximum Power Allocations for the 3500-PoE Switches


The HP ProCurve 3500-24-PoE switch has 24 ports with an internal PoE power

supply that provides 398 watts of 50V power across all 24 ports. The HP

ProCurve 3500-48-PoE switch has 48 ports with 398 watts of 50V power across

all 48 ports. There is a special power provision on the 3500-48-PoE switch

where the switch reserves 22 watts for each bank of 24 ports, ports 1-24 and




398 watts available to ports 1-24(provided by the internal source).388 watts available as backup incase of failure, provided by the

external source.

The internal power supplyhas failed, and the external

source provides 388 watts toports 1-24.



786 watts available to ports 1-48(provided by both the internal and

external sources).

The internal power supplyhas failed, and the external

source provides 388 watts toports 1-48. Note that a

minimum of 22 watts willalways be allocated to bothport groups (ports 1-24 and

ports 25-48).


25-48, so that neither set of ports receives the entire 398 watts. This is designed

for the integrity and safety of PoE during power balancing to properly detect

PDs and bring them online.



2-18

PoE Allocation Using LLDP Information

Youcan have theport automatically configurecertain PoElink partner devices

if the devices supports advertising of its PoE needs. By enabling PoE LLDP

detection, available information about the power usage of the PD will be used

by the switch to configure the power allocation. The default configuration is

for PoE information to be ignored if detected through LLDP.

For more information, see the Management and Configuration Guide for your switch at www.hp.com/networking/support.

HP ProCurve 3500yl PWR Switches

Maximum PoE Power

The Switch 3500yl-24G-PWR provisions (allocates power to) ports 1-24 with398 watts of power for PoE applications compatible with the IEEE 802.3af

standard and some pre-standard devices. The Switch 3500yl-48G-PWR

provisions ports 1-48 with 398 watts. This reduces the average per port wattage

by half as compared to the Switch 3500yl-24G-PWR.

An external power supply, the 620 RPS/EPS (J8696A) can be connected to

either of the 3500yl switches to provide redundant or extra PoE power. The

620 RPS/EPS can be connected to up to two switches and provide 388 wattsof 50V power to each switch.

Table 2-10. Maximum Power Allocations for the 3500yl Switches


PoE for Switch3500yl-24G-PWR


398 watts available to ports 1-24(provided by the internal source).

388 watts available as backup incase of failure, provided by theexternal source.

The internal power supply hasfailed, and the external source

provides 388 watts to ports 1-24.

PoE for Switch3500yl-48G-PWR


786 watts available to ports 1-48(provided by both the internal and

external sources).

The internal power supply hasfailed, and the external source

provides 388 watts to ports 1-48.Note that a minimum of 22 watts will

always be allocated to both portgroups (ports 1-24 and ports 25-48).



The Switch 3500yl-24G-PWR has 24 ports with an internal PoE power supply

that provides 398 watts of 50V power across all 24 ports. The Switch 3500yl-





2-19

p p p y

48G-PWR has 48 ports with 398 watts of 50V power across all 48 ports. Thereis a special power provision on the Switch 3500yl-48G-PWR, Where the switch

reserves 22watts for each bankof 24ports, ports 1-24 and 25-48, sothatneither

set of ports receives the entire 398 watts. This is designed for the integrity and

safety of PoE during power balancing to properly detect PDs and bring them

online.


Youcan have theport automatically configurecertain PoElink partner devices

if the devices supports advertising of its PoE needs. By enabling PoE LLDP

detection, available information about the power usage of the PD will be used

by the switch to configure the power allocation. The default configuration is

for PoE information to be ignored if detected through LLDP.



HP ProCurve 3500yl PoE+ Switches

Maximum PoE Power

The Switch 3500yl-24G-PoE+ provisions (allocates power to) ports 1-24 with


802.3af and the 802.3at standard and some pre-standard devices. The Switch3500yl-48G-PoE+ provisions ports 1-48 with 398 watts. This reduces the

average per port wattage by half as compared to the Switch 3500yl-24G-PoE+.

An external power supply, the HP 630 Redundant and/or External (HP 630

RPS/EPS) power supply (J9443A ) can be connected to either of the 3500yl

PoE+ switches to provide redundant or extra PoE+ power. The HP 630 RPS/

EPS provides up to 388 watts of PoE+ power at 54 volts. The 630 RPS/EPS

power supply is rated at 398 watts, however, 388 watts are supplied to theswitch due to line loss on the EPS cable.


Table 2-11. Maximum Power Allocations for the 3500yl-PoE+ Switches






2-20


The Switch 3500yl-24G-PoE+ has 24 ports with an internal PoE power supply

that provides 398 watts of power across all 24 ports. The Switch 3500yl-48G-

PoE+ has 48 ports with 398 watts of power across all 48 ports. The HP

ProCurve 630 RPS/EPS can provide an extra 388 watts for a total of 786 watts.






allocation. Theinitial configuration forPoE ports maychange if more accurate


For more information, see the Management and Configuration Guide for your switch at www.hp.com/networking/support.

HP E3800 PoE+ Switches

Maximum PoE Power

HP E3800 PoE+ switches provision(allocates power to)ports1-24 or 1-48 with

up to 1080 watts of power depending on how many power supplies areinstalled and to what voltage the power supply is connected to, either 110 or

220 volts, for PoE and PoE+ applications compatible with IEEE 802.3af and

802.3at standards, including some pre-standard devices.

PoE for Switch3500yl-24G-PoE+ 398 watts available to ports 1-24. 786 watts available to ports 1-24(provided by the internal andexternal source). 388 watts available

as backup in case of failure,provided by the external source.

The internal power supply hasfailed, 388 watts available to ports1-24 from the external source.

PoE for Switch3500yl-48G-PoE+

398 watts available to ports 1-48.

786 watts available to ports 1-48(provided by the internal and

external source).

The internal power supply hasfailed, 388 watts available to ports

1-48 from the external source.


Table 2-12. Maximum Power Allocations for the E3800 PoE+ Switches

PoE Devices One power supply Two power supplies





2-21

Table 2-13. PoE Power Requirements

The E3800-24G-PoE+-2SFP+, E3800-24G-PoE+-2XG switches and the E3800-

48G-PoE+-4SFP+, E3800-48G-PoE+-4XG switches have 24 or 48 ports

respectively and depending on how many power supplies are installed and to

what voltage the power supply is connected to, either 110 or 220 voltage can

supply up to 1080 watts for PoE/PoE+ usage.






allocation. Theinitial configuration forPoE ports maychange if more accurateconfiguration information is provided by way of LLDP.

N o t e By default, LLDP on each switch is enabled. PoE+ (802.3at) Powered Devices

(PD) that only support 2-event class signature may not be able to negotiate

for additional power when connected to the switch. In such cases, the LLDP

option on the switch port must be disabled to enable the 2-event classification

so that such PoE+ PDs may be detected. For information on CLI commands

to disable LLDP, see the Management and Configuration Guide for your switch at www.hp.com/networking/support.

PoE for theE3800-24G-PoE+-2SFP+and

E3800-24G-PoE+-2XGswitches

573 watts available to ports 1-24 with 127 Wbeing used by the system at 110 volts.

Or when connected to 220 volts there will be873 W available for PoE+.

1080 watts available to ports 1-24 with 127 Wbeing used from the first power supply by thesystem at 110 volts.

Or when connected to 220 volts there will be 1080W available for PoE+.

PoE for theE3800-48G-PoE+-4SFP+

andE3800-48G-PoE+-4XG

switches

573 watts available to ports 1-48 with 127 Wbeing used by the system at 110 volts.

Or 815 watts available to ports 1-48 with185W being used by the system at 220 volts.

1080 watts available to ports 1-48 with 127 Wbeing used from the first power supply by the

system at 110 volts.

Or 1080 watts available to ports 1-48 with 185 Wbeing used by the system at 220 volts.


HP ProCurve E5400zl/E8200zl Switches

Maximum PoE Power






2-22

Each chassis provisions (allocates power to) ports 1-24 of each module with

the watts associated with the specific power supply installed. The power for

PoE applications is compatible with the IEEE 802.3af standard and some pre-

standard devices. As soon as a module is installed into the switch, 22 watts is

reserved for its use.

An external power supply, the HP ProCurve Switch zl Power Supply Shelf

(J8914A) can be connected to these switches to provide extra PoE power. The

Power Supply Shelf can be connected to up to two switches and provide upto 1800 watts depending on which power supplies are installed.

Table 2-14. Maximum Power Allocations for the E5400zl/E8200zl Switches for PoE

PoE Devices Internal Only(J8712A, J8713A)

Internal and External(J8712A, J8713A)

External Only(J8712A, J8713A)

PoE for Switch

E5406zl

1 power supply J8712A, 273 watts

2 power supplies J8712A, 546 watts

1 power supply J8713A, 900 watts


2 power supplies one J8712A and oneJ8713A (not recommended),1173 watts

A maximum of 2 internal power

supplies up to 1800 watts and the external source can provide

up to 1800 watts depending onwhich power supplies are

installed.

The internal power supply

has failed, and the externalsource provides up to 1800watts depending on which

power supplies are installed.

Note that without internalpower the switch will not beactive since the EPS does not

supply system power.

PoE for SwitchE5412zl/ E8212zl

2 power supplies J8712A, 546 watts2 power supplies J8713A, 1800 watts

2 power supplies, one J8712A and oneJ8713A (not recommended), 1173 watts



3 power supplies, two J8712A and oneJ8713A (not recommended), 1446 watts

3 power supplies, one J8712A and twoJ8713A (not recommended), 2073 watts



4 power supplies, two J8712A and twoJ8713A (not recommended), 2346 watts

A maximum of 4 internal powersupplies up to 3600 watts and the external source can provide

up to 1800 watts depending onwhich power supplies are

installed.

The internal power supplyhas failed, and the externalsource provides up to 1800watts depending on which

power supplies are installed.

Note that without internalpower the switch will not beactive since the EPS does not

supply system power.


Table 2-15. Maximum Power Allocations for the E5400zl/E8200zl Switches for PoE/PoE+

PoE Devices Internal Only (J9306A) Internal and External (J9306A) External Only (J9306A)

110-127V 200-240V 110-127V 200-240V



2-23

PoE Allocation Using LLDP Information

See page 2-16.


PoE Only Modules.

There are two PoE modules for the E5400zl/E8200zl chassis and they have

the same requirement for reserving 22 watts (see above). There are 22 watts per module that is always held in reserve.

PoE/PoE+ forSwitchE5406zl/ E8206zl

1 - 300 watts

2 - 600 watts

1 -900 watts

2 - 1800 watts

A maximum of2 internalpower suppliesup to 600 wattsand theexternalsource canprovide an

additional 600watts.

A maximum of2 internalpower suppliesup to 1800watts, and theexternalsource canprovide an

additional 1800watts.

The internal powersupply has failed, and

the external sourceprovides up to 600 wattsor 1800 wattsdepending on thevoltage used.

Note that without

internal power theswitch will not be activesince the EPS does notsupply system power.

PoE/PoE+ forSwitchE5412zl/ E8212zl

1- 300 watts

2 - 600 watts

3 - 900 watts

4 - 1200 watts

1 - 900 watts

2 - 1800 watts

3 - 2700 watts

4 - 3600 watts

A maximum of4 internalpower suppliesup to 1200watts and theexternalsource canprovide anadditional 600watts.

A maximum of4 internalpower suppliesprovide up to3600 watts.

Up to twoexternal powersuppliesprovide anadditional 1800watts.

The internal powersupply has failed, and

the external sourceprovides up to 600 wattsor 1800 wattsdepending on thevoltage used.

Note that withoutinternal power theswitch will not be activesince the EPS does notsupply system power.


■ HP ProCurve Switch zl 24-Port 10/100/1000 PoE Module (J8702A)

■ HP ProCurve Switch zl 20-Port 10/100/1000 + 4-port Mini-GBIC Module

(J8705A)

E h f 24 i i d d h



2-24

Each group of 24 ports is its own management group and needs to have a minimum allocation associated with it in order to properly detect PDs and

bring them online.

Each group of 24 ports will have a PoE power allocation of at least 22 watts.

This 22 watts must be subtracted from the total wattage when figuring how

many PoE devices to connect to which ports on a switch or module. In order

to be able to allocate the reserved 22 watts, either use the ports it is allocated

to, or the PoE power to all ports on the associated module must be turned off.

PoE/PoE+ Modules.

There are seven zl modules that can provide PoE/PoE+ power to the E5400zl/

E8200zl switches. A minimum of 17 watts is required to power up a port used

for PoE; a minimum of 33 watts is required to power up a port used for PoE+.

There is a maximum limit of 370 watts of PoE/PoE+ power available per slot.

■ HP ProCurve 24-Port 10/100/1000 PoE+ zl Module (J9307A)

■ HP ProCurve 20-Port 10/100/1000 PoE+/4 Port mini-GBIC zl Module

(J9308A)

■ HP 24-Port 10/100 PoE+ Module (J9478A)

■ HP 24-Port Gig-T PoE+ v2 zl Module (J9534A)

■ HP 20-Port Gig-T PoE+/4 Port SPF v2 zl Module (J9535A)

■

HP 20-Port Gig-T PoE+/2 Port 10-GbE SPF+ v2 zl Module (J9536A)■ HP 24-Port 10/100 PoE+ v2 zl Module (J9547A)


HP ProCurve Switch xl PoE Module for the 5300xlSwitch

For the HP ProCurve Switch xl PoE Module to function it must be installed in

HP P C S it h 5300 l Th d l ill i it’ ti l



2-25

an HP ProCurve Switch 5300xl. The module will receive it’s operational power

from the switch and its PoE power from the 600 RPS/EPS or an 610 EPS.



HP ProCurve Switch xlPoE Module

No internal PoE power. No internal PoE power.(See EPS only.)

408/204* watts available toports 1-24 on the module.

* If both EPS ports on the 600 RPS/EPS or both ports of a pair on the 610 EPS are connected to modules, each modulecan receive 204 watts of power. If a single module is connected to the EPS ports, that module can receive 408 watts.




2-26

3

Planning and Implementation for the 2520 and

2520G S it h



3-1

2520G Switches

This chapter discusses the planning process a user should follow to

successfully implement PoE using a 2520 or 2520G Switch. After

understanding what PoE is and its operating rules, the next step to

implementation is planning. See “General Considerations” page A-1, for anexample list of considerations during the planning phase.

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:

■ HP ProCurve 2520-8-PoE Switch with Gigabit Uplink


■ HP ProCurve 2520G-8-PoE Switch

■ HP ProCurve 2520G-24-PoE Switch

Each example shows a complete configuration. A table shows the PoE power available to connected PoE 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.

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

for the PoE functionality. If either voltage fails, the entire power supply shuts

down disconnecting all switch and PoE connections.

Planning and Implementation for the 2520 and 2520G SwitchesPlanning the PoE Configuration

HP ProCurve 2520-8-PoE and 2520G-8-PoEConfigurations

The table in the example configuration contain entries that show the PoE

power available when the 2520-8-PoE or 2520G-8-PoE is used to supply PoE



3-2

power available when the 2520 8 PoE or 2520G 8 PoE is used to supply PoE

power.

Figure 3-1. Example of a 2520-8-PoE or 2520G-8-PoE Switch

If any of the mini-GBIC ports are used the corresponding RJ-45 port will notbe supplied with PoE power. This needs to be taken into consideration when

planning per-port PoE wattage.

8 ports can receive up to8 watts of PoE power

8 ports can receive up to7.5 watts of PoE power

Source of Power WattsAvailable

# of Ports Powered andAverage watts/Port

Internal PoE Power

Supply

67 8 @ average 7.5 W each

4 @ average 15.4 W each


HP ProCurve 2520-24-PoE and 2520G-24-PoEConfigurations


power available when the 2520-24-PoE or 2520G-24-PoE is used to supply PoE



3-3

p pp y power.

Figure 3-2. Example of a 2520-24-PoE or 2520G-24-PoE Switch

If any of the mini-GBIC ports are used the corresponding RJ-45 port will not

be supplied with PoE power. This needs to be taken into consideration when

planning per-port PoE wattage.

ProCurve Switch2520G-24-PoE

12 ports can receive up to 15.4watts of PoE power


ProCurve Switch2520-24-PoE





Internal PoE PowerSupply

195 12 @ average 15.4 W each24 @ average 7.5 W each



4

Planning and Implementation for the

2600-PWR Switches



4-1

2600-PWR Switches


successfully implement PoE using a 2600-PWR Switches. After understanding

what PoE is and its operating rules, the next step to implementation is

planning. See “General Considerations” page A-1, for an example list of considerations during the planning phase.


This section assists you in building a PoE configuration. Using the followingexamples you can plan, build, and connect PoE devices quickly and easily.

There are three configurations:

■ ProCurve 2600-8-PWR Switch with Gigabit Uplink

■ ProCurve 2626-PWR Switch

■ ProCurve 2650-PWR 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.


provided, you then add up the maximum amount of power each of your IEEE802.3af-compliant devices require (use maximum power in watts, usually




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

to determinewhichPoE devices must receive redundantPoE power,then total

their power requirements as explained in the paragraph above.

Planning and Implementation for the 2600-PWR SwitchesPlanning the PoE Configuration

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.



4-2

N o t e Full redundancy is achieved by connecting both the RPS and EPS ports of the

2600-PWR Switches to the corresponding ports of a 600 RPS/EPS.



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

power for the switch functionality while the isolated voltage provides power for the PoE functionality. If either voltage fails, the entire power supply shuts

down disconnecting all switch and PoE connections. Therefore it is important

to provide redundancy for each isolated voltage.

ProCurve 2600-8-PWR ConfigurationsThe tables in the example configurations contain entries that show the PoE

power available when the 2600-8-PWR is used alone. When used with the 600

RPS/EPS or 610 EPS unit, PoE power is available to the PoE ports should the

internal PoE power supply fail. Table entries show the PoE power available

when the 600 RPS/EPS or 610 EPS alone provides PoE power.

Figure 4-1. Example of a 600 RPS/EPS Powering One 2600-8-PWR Switch

ProCurve RPS InputEPS R edundant Input

Line: 50/60 Hz100 240 V~3.3 A (3,3 A)

!Multiple power sources. Disconnect

both the AC power cord and the RPS cable

to completely remove power from the unit.

ProCurve Switch2600-8-PWR

600 RPS/EPS


Source ofPower

WattsAvailable


Redundant # of PortsPowered and Average watts/

Port

Internal PoEP

126 8 @ average 15.4 W each None



4-3

■ A single 2600-8-PWR switch with a dedicated 600 RPS/EPS unit has fully

redundant PoE power for all 8 ports at 15.4 W per port.

■ Also (not shown), two 2600-8-PWR switches with a dedicated 600 RPS/

EPS unit has full redundant PoE power for both switches. The 600 RPS/

EPS supplies 408 watts to one switch and 204 watts to each switch when

two switches are connected to the 600 RPS/EPS.

ProCurve 2626-PWR Configurations

The tables in the example configurations contain entries that show the PoE power available when the 2626-PWR is used alone. When used with the 600

RPS/EPS or 610 EPS unit, PoE power is available to the PoE ports should the

internal PoE power supply fail. Table entries show the PoE power available


Figure 4-2. Example of an 600 RPS/EPS Powering One 2626-PWR Switch

PowerSupply

Internal plusExternal PoEPowerSupply

126 + 408

1- 8

8 @ average 15.4 W each 8 @ average 15.4 W each

External PoEPowerSupply(FailedInternal PoEPowerSupply)


600 RPS/EPS

ProCurve Switch2626-PWR


Source ofPower

WattsAvailable



Port

Internal PoEPower




4-4

A single 2626-PWR switch with a dedicated 600 RPS/EPS unit has fully


Figure 4-3. Example of an 600 RPS/EPS Powering Two 2626-PWR Switches

PowerSupply


406 + 408

1 - 24




600 RPS/EPS



Source ofPower

WattsAvailable



Port

Internal PoEPower Supply




4-5

■ When two switches are connected to the 600 RPS/EPS ports, the PoE

power available to each switch is a maximum of 204 W. If all of your PDs

consume on average less than 7.5 W each (allowing for any line loss) then

all 24 ports will receive redundant power should a switch’s internal PoE

power supply fail.

Redundant power is available as long as the total power required remains

below 204 W.

Power Supply

Internal plusExternal PoEPower Supply

406 + 204

1 - 24

24 @ average 15.4 W each 24 @ 7.5 W each12 @ 15.4 W each

External PoEPower Supply(Failed InternalPoE PowerSupply)

204 24 @ 7.5 W each12 @ 15.4 W each

None


ProCurve 2650-PWR Configurations

The tables in the example configurations contain entries that show the PoE

power available when the 2650-PWR is used alone. When used with the 600

RPS/EPS or 610 EPS unit, additional PoE power is available to the PoE portsand PoE power is available should the switch’s internal PoE power supply fail.



4-6

Table entries show the PoE power available when the 600 RPS/EPS or the 610

EPS alone provides PoE power.

In the following examples using the ProCurve 2650-PWR switch, reference is

made to two blocks of ports: ports 1-24 and ports 25-48. This applies when

external PoE power is available from an 600 RPS/EPS or 610 EPS unit. In that

case, the internal switch PoE power supply provides 406 watts of power to ports 1-24 and the 600 RPS/EPS or 610 EPS provides 408 watts of power to

ports 25-48.

If you are using the ProCurve 2650-PWR Switch with external PoE power, the

number of ports with available PoE power when the switch is powered by just

the 600 RPS/EPS or 610 EPS unit may be less than the number of ports

powered when both the switch and the 600 RPS/EPS or 610 EPS unit are

supplyingpower. In thedefault configuration thenumber andlocation of portswith redundant PoE power is determined by three factors:

■ The number of switches drawing external PoE power from the 600 RPS/

EPS or 610 EPS unit. If only a single switch is using external PoE power

the 600 RPS/EPS or 610 EPS provides 408 watts of PoE power. If two

switches are using external PoE power from the 600 RPS/EPS or two

switches are connected to the same pair on the 610 EPS, a switch receives

204 watts of PoE power. Should the switch’s internal PoE power supply

fail, the 600 RPS/EPS or 610 EPS provides power up to the wattage statedabove.

■ When the internal PoE power supply fails, the 600 RPS/EPS reserves a

minimum of 38 watts for the less-loaded bank of ports. In the default

configuration, at a minimum, the first two ports in the bank (1 and 2 or 25

and 26) will have PoE power.

N o t e It is the ports configured with the highest priority of either bank (1-24 or 25-48) that will receive PoE power. For example, if the highest priority ports have

been re-configured to be 23, 24 and 47, 48, then they will have PoE power.

■ In the default configuration PoE power priority is determined by port

number, with the lowest numbered port having the highest priority.

If redundant PoE power is required, use the example tables to determine how

much power is available to which ports.


600 RPS/EPS



4-7

Figure 4-4. Example of an 600 RPS/EPS Power One Switch

The lowest loaded bank of ports (1-24 or 25-48) has 38 watts reserved. That

power is available for use by the two highest priority ports in the bank, (in a

default configuration ports 1 and 2, or 25 and 26).


Source ofPower

WattsAvailable



Port

Internal PoE

PowerSupply



None


406 + 408

1 - 24 25 - 48



External PoEPower

Supply(FailedInternal PoEPowerSupply)

408(38 W is

reserved foreither ports1-24 or 25-48)



None


600 RPS/EPS



4-8

Figure 4-5. Example of an 600 RPS/EPS Powering Two Switches

The lowest loaded bank of ports (1-24 or 25-48) has 38 W reserved and is ‘bank

2’ in the table above.

ProCurve Switch

2650-PWR

Source ofPower

WattsAvailable



Port

Internal PoEPowerSupply



None

Internal plus

External PoEPowerSupply

406 + 204

1 - 24 25 - 48


and 24 @ 7.5 W each

or


10 (bank 1) and 2 (bank 2) @

average 15.4 W each

19 (bank 1) and 4 (bank 2) @average 7.5 W each



(FailedInternal PoEPowerSupply)

204(38 W isreserved for

either ports1-24 or 25-48)




None


100-240 V~ 7.5 A

Line: 50/60 Hz.RPS

12 V 7.5 A

100-240 V~ 7.5 A

Line: 50/60 Hz.

50 V 16 A

RPS12 V 7.5 A

P C S it h



4-9

Figure 4-6. Example of an 610 EPS Powering Four Switches

With all four EPS ports in use, each switch only receives 204 watts.

Power

Fault

hp procurve610 eps

J8169A

Fan/Temp Status flash = Temperature too highFan/Temp Status + Fault flash = Fan failure

Fan/Temp Status

Internal Power Status

In Ready Out Ready

Backup Power Ports Status

EPS Ports Pair A (408 W total for PoE applications )

EPS Ports: 50V 8.3A ma x ea ch.

EPS A1PowerStatus

A2 B1 B2 A1DeviceConnected

EPS A2 EPS B1PowerStatus

DeviceConnected

EPS B2

EPS Ports Pair B(408 W total for PoE applications)

100-240 V~ 7.5 A

Line: 50/60 Hz.

50 V 16 A

RPS12 V 7.5 A

100-240 V~ 7.5 A

Line: 50/60 Hz.

50 V 16 A

RPS12 V 7.5 A

50 V 16 A

600 RPS/EPS


Source ofPower

WattsAvailable



Port




None


406 + 204

1 - 24 25 - 48

24 @ average 15.4 W eachand 24 @ 7.5 W each

or





External PoE

PowerSupply(FailedInternal PoEPowerSupply)

204

(38 W isreserved foreither 1-24 or25-48)

10 (bank 1) and 2 (bank 2) @

average 15.4 W each



None



5


2610-PWR Switches



5-1


successfully implement a PoE 2610-PWR Switches. The 2610-PWR switches

and the 2600-PWR switches utilize a common PoE implementation. Port

counts, power supply wattages, specifications, and functionality for these two

platforms are the same with respect to PoE.

After understanding what PoE is and its operating rules, the next step to

implementation is planning. See “General Considerations” page A-1, for an

example list of considerations during the planning phase.

Planning Your 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:

■ ProCurve 2610-24/12PWR Switch

■ ProCurve 2610-24-PWR Switch

■ ProCurve 2610-48-PWR 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.

Planning and Implementation for the 2610-PWR SwitchesPlanning Your PoE Configuration





adding 16% to account for possible line loss. This value must be less than themaximum power available shown in the table for your configuration.



5-2

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

to determinewhichPoE devices must receive redundantPoE 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.

N o t e Full redundancy is achieved by connecting both the RPS and EPS ports of the

2610-PWR switches to the corresponding ports of a 600 RPS/EPS.



output voltages for switch and PoE functionality. One supply voltage provides power for the switch functionality while the isolated voltage provides power

for the PoE functionality. If either voltage fails, the entire power supply shuts

down disconnecting all switch and PoE connections. Therefore it is important

to provide redundancy for each isolated voltage.

ProCurve 2610-24/12PWR ConfigurationsThe tables in the example configurations contain entries that show the PoE

power available when the 2610-24/12PWR is used alone. When used with the

600 RPS/EPS or 610 EPS unit, PoE power is available to the PoE ports should

theinternalPoE power supplyfail.Table entries show thePoE power available



ProCurve Switch

600 RPS/EPS



5-3

Figure 5-1. Example of a 600 RPS/EPS Powering One 2610-24/12PWR Switch

■ A single 2610-24/12PWR switch with a dedicated 600 RPS/EPS unit has fully

redundant PoE power for the 12 PoE ports at 7.5 W per port or 12 ports at 15.4W per port. Only 12 ports can be PoE powered.

■ The internal power supply can provide up to 126 W of power to be used on all

12 PoE ports. The power can be allocated up to the maximum of 12 ports, or

126 W, whichever is depleted first with a reserve of 22 W maintained by the

switch for power management. If more power is needed to allow the

maximum of 15.4 W on all 12 ports, an external power supply accessory is

needed.

■ Also (not shown), two 2610-24/12PWR switches with a dedicated 600 RPS/ EPS unit has full redundant PoE power for both switches. The 600 RPS/EPS

supplies 408 watts to one switch and 204 watts to each switch when two

switches are connected to the 600 RPS/EPS.

ProCurve Switch2610-24/12PWR




Port




None

Internal plusExternal PoE

Power Supply

126 + 408

1 - 12






None


ProCurve 2610-24-PWR Configurations



RPS/EPS or 610 EPS unit, PoE power is available to the PoE ports should theinternal PoE power supply fail. Table entries show the PoE power available




5-4

Figure 5-2. Example of an 600 RPS/EPS Powering One 2610-24-PWR Switch

A single 2610-24-PWR switch with a dedicated 600 RPS/EPS unit has fully



600 RPS/EPS

Source ofPower

WattsAvailable



Port




406 + 4081 - 24


External PoEPowerSupply(FailedInternal PoE

PowerSupply)



600 RPS/EPS



5-5

Figure 5-3. Example of an 600 RPS/EPS Powering Two 2610-24-PWR Switches

■ When two switches are connected to the 600 RPS/EPS ports, the PoE

power available to each switch is a maximum of 204 W. If all of your PDs

consume on average less than 7.5 W each (allowing for any line loss) thenall 24 ports will receive redundant power should a switch’s internal PoE

power supply fail.

Redundant power is available as long as the total power required remains

below 204 W.


Source ofPower

WattsAvailable



Port

Internal PoE

PowerSupply



406 + 204

1 - 24

24 @ average 15.4 W each 24 @ 7.5 W each12 @ 15.4 W each

External PoEPower

Supply(FailedInternal PoEPowerSupply)

204 24 @ 7.5 W each12 @ 15.4 W each

None


ProCurve 2610-48-PWR Configurations



RPS/EPS or 610 EPS unit, additional PoE power is available to the PoE portsand PoE power is available should the switch’s internal PoE power supply fail.

Table entries show the PoE power available when the 600 RPS/EPS or the 610

EPS alone provides PoE power



5-6

EPS alone provides PoE power.

In the following examples using the ProCurve 2610-48-PWR Switch, reference

is made to two blocks of ports: ports 1-24 and ports 25-48. This applies when

external PoE power is available from an 600 RPS/EPS or 610 EPS unit. In that

case, the internal switch PoE power supply provides 406 watts of power to

ports 1-24 and the 600 RPS/EPS or 610 EPS provides 408 watts of power to

ports 25-48.

If you are using the ProCurve 2610-48-PWR Switch with external PoE power,

the number of ports with available PoE power when the switch is powered by

just the 600 RPS/EPS or 610 EPS unit may be less than the number of ports

powered when both the switch and the 600 RPS/EPS or 610 EPS unit are

supplyingpower. In thedefault configuration thenumber andlocation of ports

with redundant PoE power is determined by three factors:

■ The number of switches drawing external PoE power from the 600 RPS/

EPS or 610 EPS unit. If only a single switch is using external PoE power

the 600 RPS/EPS or 610 EPS provides 408 watts of PoE power. If two

switches are using external PoE power from the 600 RPS/EPS or two

switches are connected to the same pair on the 610 EPS, a switch receives

204 watts of PoE power. Should the switch’s internal PoE power supply

fail, the 600 RPS/EPS or 610 EPS provides power up to the wattage statedabove.

■ When the internal PoE power supply fails, the 600 RPS/EPS reserves a

minimum of 22 watts for the less-loaded bank of ports. In the default

configuration, at a minimum, the first two ports in the bank (1 and 2 or 25

and 26) will have PoE power.

N o t e It is the ports configured with the highest priority of either bank (1-24 or 25-48) that will receive PoE power. For example, if the highest priority ports have

been re-configured to be 23, 24 and 47, 48, then they will have PoE power.

■ In the default configuration PoE power priority is determined by port

number, with the lowest numbered port having the highest priority.

If redundant PoE power is required, use the example tables to determine how

much power is available to which ports.


ProCurve Switch

600 RPS/EPS



5-7

Figure 5-4. Example of an 600 RPS/EPS Powering One 2610-48-PWR Switch





Source ofPower

WattsAvailable



Port




None


406 + 408

1 - 24 25 - 48




408(22 W isreserved foreither ports1-24 or 25-48)



None


600 RPS/EPS



5-8

Figure 5-5. Example of an 600 RPS/EPS Powering Two 2610-48-PWR Switches

The lowest loaded bank of ports (1-24 or 25-48) has 22 W reserved and is

‘bank 2’ in the table above.


Source ofPower

WattsAvailable



PortInternal PoEPowerSupply



None


406 + 204

1 - 24 25 - 48


or



19 (bank 1) and 4 (bank 2) @

average 7.5 W each


External PoEPowerSupply(FailedInternal PoEPower

Supply)

204(22 W isreserved foreither ports1-24 or 25-48)




None


ProCurve Switch



5-9

Figure 5-6. Example of an 610 EPS Powering Four 2610-48-PWR Switches

With all four EPS ports in use, each switch only receives 204 watts.

600 RPS/EPS

2610-48-PWR

Source ofPower

WattsAvailable



Port

Internal PoE

Power Supply



None


406 + 204

1 - 24 25 - 48


or






204(22 W isreservedfor either 1-24 or 25-48)




None



6


2615 and 2915G Switches



6-1


successfully implement PoE using a 2615 or 2915G Switch. After







There are two configurations:


■ HP ProCurve 2915-8G-PoE Switch

Each example shows a complete configuration. A table shows the PoE power

available to connected PoE 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






HP ProCurve 2615-8-PoE and 2915-8G-PoEConfigurations


power available when the 2615-8-PoE or 2915-8G-PoE is used to supply PoE power.



6-2

Figure 6-1. Example of a 2615-8-PoE or 2915-8G-PoE Switch

The mini-GBIC ports and the corresponding RJ-45 port do not supply PoE

power.





Internal PoE PowerSupply



7

Planning and Implementation for the E2620PoE+ Switches



7-1


successfully implement PoE+ using an E2620 Switch. After understanding

what PoE+ is and its operating rules, the next step to implementation is

planning. See “General Considerations” page A-1, for an example list of

considerations during the planning phase.


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 six configurations:

■ HP E2620-24-PPoE+ Switch

■ HP E2620-24-PoE+ Switch

■ HP E2620-24-PoE+ Switch connecting an external power supply

■ HP E2620-48-PoE+ Switch

■ HP E2620-48-PoE+ Switch connecting an external power supply

Each example shows a complete configuration. A table shows thePoE+ power

available to connected PoE+ devices when using just the switch and when

connecting an external power supply.

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.

Planning and Implementation for the E2620 PoE+ SwitchesPlanning Your PoE Configuration

HP E2620-24-PPoE+ Configurations

The table in this example configuration contains entries that show the PoE+

power available for the E2620-24-PPoE+.



7-2

Figure 7-1. Example of a E2620-24-PPoE+ Switch

4 ports can receive up to 30 watts

of PoE+ power

Source ofPower

WattsAvailable



PortInternalPoE+ PowerSupply

126 4 @ average 30W each for a total of 120 W




None


HP E2620-24-PoE+ Configurations


power available for the E2620-24-PoE+.



7-3

Figure 7-2. Example of a E2620-24-PoE+ Switch


power available for the E2620-24-PoE+ when connecting to an external power

supply.

Figure 7-3. Example of a E2620-24-PoE+ Switch connecting to a 630 RPS/EPS

12 ports can receive up to 30

watts of PoE+ power

24 ports can receive up to 15.4

watts of PoE poweror

Source ofPower

WattsAvailable



PortInternalPoE+ PowerSupply





None

E2620 switch

630 RPS/EPS


One E2620-24-PoE+ switch can be supported by one 630 RPS/EPS. This is a

full redundant configuration. The switch can be supplied with power should

the internal power supply fails. The 630 RPS/EPS can supply system power to

keep the switch powered on and PoE+ power to supply the attached PoE+

devices with power.

Source ofPower

WattsAvailable

# of Ports Powered andAverage watts/Port from

internal supply

Redundant # of PortsPowered and Average

watts/Port



7-4

1 The 630 RPS/EPS power supply is rated at 398 watts, however, 388 watts are supplied to the

switch due to line loss on the EPS cable.

HP E2620-48-PoE+ Configuration

PoE+ power requirements are figured differently for the E2620-48-PoE+switch, see PoE+ Power on page 2-14. The table in this example configuration

contains entries that show the PoE+ power available for the E2620-48-PoE+

switch.

In the default configuration PoE+ power priority is determined by port

number, with the lowest numbered port (port 1) having the highest priority,

and the highest numbered port (port 48) having the lowest priority.

N o t e It is the ports configured with the highest priority of either bank (1-24 or

25-48) that will receive PoE+ power first. For example, if the highest priority

ports have been re-configured to be 23, 24 and 47, 48, then they will receive

PoE+ power before the lower priority ports.

internal supply watts/Port

Internal PoE+Power Supply




None

Internal plusExternal PoE+Power Supply

364 + 3881 24 @ average 30.0 W each fora total of 720



12 @ average 30.0 W eachfor a total of 360 W



External PoE+Power Supply(failed Internal

PoE PowerSupply)




None




7-5

Figure 7-4. Example of a E2620-48-PoE+ Switch

For example, the switch starts with 364 watts. It takes 360.0 watts to fully

provision 12 ports at 30 watts per port (plus 4 watts to account for load

fluctuations), leaving the pool of available watts empty.

Since a port requires 33 watts to power up a PoE+ device, there is not enough

available power to power another device.


power available for the E2620-48-PoE+ when connecting to an external power

supply.

Figure 7-5. Example of a E2620-48-PoE+ Switch connecting to a 630 RPS/EPS

All 24 ports can receive up to 15.4watts of PoE power

or 48 ports can receive up to 7.5watts of PoE power

12 ports can receive up to 30watts of PoE+ power

or

Source ofPower

WattsAvailable



Port

Internal PoE+PowerSupply

364 12 @ average 30 W each24 @ average 15.4 W each



None

E2620 48 port switch

630 RPS/EPS


Source ofPower

WattsAvailable



watts/Port


364 12 @ average 30 W each23 @ average 15.4 W each48 @ average 7.5 W each


None

Internal plus 364 + 3881 24 @ average 30 0 W each for 12 @ average 30 0 W each for



7-6



The switch can receive redundant power from the 630 RPS/EPS should the

switch’s internal power supply fail.

Internal plusExternal PoE+power Supply





12 @ average 30.0 W each fora total of 360 W




External PoE+Power Supply(failed InternalPower Supply)


25 @ average 15.4 W each48 @ average 7.5 W each


None

8

Planning and Implementation for the Switchxl PoE module




8-1


successfully implement PoE using a Series 5300xl PoE module. After





This section assists you in building a reliable PoE configuration. Using thefollowing 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


There are five configurations:

■ One module with a 600 RPS/EPS

■ Two modules with a 600 RPS/EPS

■ Two modules with a 610 EPS using a separate pair of power ports

■ Two modules with a 610 EPS using the same pair of power ports

■ Four modules with a 610 EPS

Each example shows a complete configuration using either a 600 RPS/EPS or

610EPS unit. A table shows thePoE power available to connectedPoE devices







Planning and Implementation for the Switch xl PoE modulePlanning Your PoE Configuration

ProCurve Switch PoE xl Module Configurationswith a 600 RPS/EPS

For the ProCurve Switch xl PoE Module to function it must be installed in an

ProCurve Switch 5300xl. The module will receive it’s operational power fromthe switch and it’s PoE power from the 600 RPS/EPS or an 610 EPS.

ProCurve Switch 5300xl



8-2

Figure 8-1. Example of an 600 RPS/EPS Powering One Module

In this example there is only one module connected to the 600 RPS/EPS,therefore it will be supplied with 408 watts of PoE power to be distributed to

all it’s 24 ports at 15.4 watts per port.

N o t e When planning the installation of the ProCurve Switch xl PoE Module you

must pay attention to the cabling. In a rack type installation, the 600 RPS/EPS

is installed with the EPS ports in the rear, opposite this graphic. This means

the EPS cable must come from the back of the 600 RPS/EPS unit and connect

to the front of the module.

hp procurvePoE

xlmodule

J8161A

xlmodule

PoE

Link Mode1 2 3 4 5 6

PoE-Ready10/100-TXPorts(1-24) all portsareHP Auto-MDIX

13 14

2019121110987

15

21

16

22 23 24

17 18

Std PoE PoE EPSStatus

LEDMode

ModeLink

600 RPS/EPS

ProCurve Switch xl PoEmodule

Source ofPower

WattsAvailable



Port

External PoE

Power Supply

408 24 @ average 15.4 W

each

None


PoE-Ready10/100-TXPorts(1-24) allportsareHPAuto-MDIXStd PoE PoE E PSLEDMode

PoE-Ready10/100-TXPorts(1-24) allportsareHPAuto-MDIXStd PoE PoE E PSLEDMode




8-3

Figure 8-2. Example of an 600 RPS/EPS Powering Two Modules

In this example there are two modules connected to the 600 RPS/EPS,

therefore each module will be supplied with 204 watts of PoE power to bedistributed to each modules 24 ports at 8.5 watts per port.

hpprocurvePoE

xlmodule

J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6 13 14

2019121110987

15

21

16

22 23 24

17 18Status

ModeLink

hpprocurvePoE

xlmodule

J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6 13 14

2019121110987

15

21

16

22 23 24

17 18Status

ModeLink

600 RPS/EPS

ProCurve Switch xl PoEmodules

Source ofPower

WattsAvailable



Port

External PoE

PowerSupply

204/each

module

24 @ average 7.5 W each None


ProCurve Switch PoE xl Module Configurations with a 610 EPS




8-4

Figure 8-3. Example of an 610 EPS Powering Two Modules

In this example there are two modules connected to the 610 EPS. Each module

willbe supplied with 408 watts of PoEpower to be distributed to each modules24 ports at 15.4 watts perport, because each module is connectedto a different

pair. One module to one port of pair A and one module to one port of pair B.

hp procurvePoE

xlmodule

J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6

PoE-Ready10/100-TXPorts(1-24) allports areHPAuto-MDIX

13 14

2019121110987

15

21

16

22 23 24

17 18

Std PoE PoE E PSStatus

LEDMode

ModeLink

hp procurvePoE

xlmodule

J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6


13 14

2019121110987

15

21

16

22 23 24

17 18


LEDMode

ModeLink

600 RPS/EPS


Source ofPower

WattsAvailable



Port


408/eachmodule






8-5

Figure 8-4. Example of an 610 EPS Powering Two Modules

In this example there are two modules connected to the 610 EPS, however

each module will be supplied with 204 watts of PoE power to be distributed

to each module’s 24 ports at 7.5 watts per port, because both modules are

connected to the same pair of ports, pair A.

hp procurvePoE

xlmodule J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6


13 14

2019121110987

15

21

16

22 23 24

17 18


LEDMode

ModeLink

hp procurvePoE

xlmodule J8161A

xlmodule

PoE

L in k M od e1 2 3 4 5 6

PoE-Ready10/100-TXPorts(1-24) allports areHP Auto-MDIX

13 14

2019121110987

15

21

16

22 23 24

17 18


LEDMode

ModeLink

600 RPS/EPS


Source ofPower

WattsAvailable



Port


204/eachmodule



PoE

L in k M od e1 2 3 4 5 6


13 14 15 16 17 18


LEDMode

ModeLink

PoE

L in k M od e1 2 3 4 5 6


13 14 15 16 17 18


LEDMode

ModeLink


P C S it h l P E



8-6

Figure 8-5. Example of an 610 EPS Powering Four Modules

In this example there are four modules connected to the 610 EPS, therefore

each module will be supplied with 204 watts of PoE power to be distributed

to each module’s 24 ports at 7.5 watts per port.

hp procurvePoE

xlmodule

J8161A xlmodule

PoE

L in k M od e1 2 3 4 5 6

PoE-Ready10/100-TXPorts(1-24) all portsareHP Auto-MDIX

13 14

2019121110987

15

21

16

22 23 24

17 18


LEDMode

ModeLink

hp procurvePoE

xlmodule

J8161A

xlmodule

2019121110987 21 22 23 24

hp procurvePoE

xlmodule

J8161A xlmodule

PoE

L in k M od e1 2 3 4 5 6


13 14

2019121110987

15

21

16

22 23 24

17 18


LEDMode

ModeLink

hp procurvePoE

xlmodule

J8161A

xlmodule

2019121110987 21 22 23 24

600 RPS/EPS


Source ofPower

WattsAvailable



Port


204/eachmodule


9

Planning and Implementation for the 2910alPoE+ Switches


successfully implement PoE+ using a Series 2910al Switch After



9-1

successfully implement PoE+ using a Series 2910al Switch. After

understanding what PoE+ is and its operating rules, the next step to




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:

■ HP ProCurve 2910al-24G-PoE+ Switch

■ HP ProCurve 2910al-24G-PoE+ Switch connecting an external power

supply

■ HP ProCurve 2910al-48G-PoE+ Switch

■ HP ProCurve 2910al-48G-PoE+ Switch connecting an external power supply

Each example shows a complete configuration. A table shows thePoE+ power

available to connected PoE+ devices when using just the switch and when

connecting an external power supply.

Once you have selected your specific configuration and the PoE+ power


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



Planning and Implementation for the 2910al PoE+ SwitchesPlanning Your PoE Configuration

ProCurve 2910al-24G-PoE+ Configuration


power available for the 2910al-24G-PoE+.

Power

Fault

Locator

Console

Spd mode: off = 10 Mbps

2 flash = 100 Mbps

on = 1 Gbps

3 flash = 10 Gbps

*

LEDMode

ClearReset

PoE+Integrated10/100/1000Base-TPorts(1-24T) PortsareAuto-MDIX

Test

Tmp

Status


!

U s e

o n l y o n e ( T o r S ) f o r e a c h

P o r t

PoE

Fan

21S 23S

22S 24S

FDx

Spd

PoE

Act

*

14 16

19171513

18 20

Link

Mode 23T21T

22T 24TLink Mode

Status of the BackMdl RPSEPSProCurveSwitch

2910bl-24G-PoE

J9146A

Link Mode

Link Mode12108642

1197531Link Mode

Link Mode

Usr

Auxiliary Port

PoE+



9-2

Figure 9-1. Example of a 2910al-24G-PoE+ Switch

If any of the mini-GBIC ports are used (21-24) the corresponding RJ-45 port

will not be supplied with PoE+ power. Therefore that needs to be taken into

consideration when planning per port PoE+ wattage.

If for example, port 24 is used for a mini-GBIC, then the RJ45-port 24 isdisabled. Therefore the PoE+ power that was being supplied to the RJ45-port

24 is returned to the total available pool of PoE+ power.

12 ports can receive up to 30

watts of PoE+ power

24 ports can receive up to 15.4

watts of PoE power

Source ofPower

WattsAvailable



Port

InternalPoE+ PowerSupply





None



power available for the 2910al-24G-PoE+ when connecting to an external

power supply.

2910al 24 port switch



9-3

Figure 9-2. Example of a 2910al-24G-PoE+ Switch connecting to a 630 RPS/EPS

The same considerations apply for the mini-GBIC ports as in the previous

example.

One 2910al-24G-PoE switch can be supported by one 630 RPS/EPS. This is a


eitherof their internal power supplies fail. The630 RPS/EPS cansupply system

power to keep the switch powered on and PoE+ power to supply the attached

PoE+ devices with power.



630 RPS/EPS

Source ofPower

WattsAvailable


internal supply


watts/PortInternal PoE+Power Supply




None

Internal plusExternal PoE+Power Supply




12 @ average 30.0 W eachfor a total of 360 W



External PoE+Power Supply(failed InternalPoE PowerSupply)




None


ProCurve 2910al-48G-PoE+ Configuration

PoE+ power requirements are figured differently for the 2910al-48G-PoE+

switch, see PoE+ Power on page 2-15. The table in this example configuration

contains entries that show the PoE+ power available for the 2910al-48G-PoE+

switch.

In the default configuration PoE+ power priority is determined by port





9-4

N o t e It is the ports configured with the highest priority of either bank (1-24 or

25-48) that will receive PoE+ power first. For example, if the highest priority ports have been re-configured to be 23, 24 and 47, 48, then they will receive


Figure 9-3. Example of a 2910al-48G-PoE+ Switch

For example, the switch starts with 382 watts. It takes 360.0 watts to fully

provision 12 ports at 30 watts per port (plus 6 watts to account for load

fluctuations), leaving 22 watts to be returned to the pool of available watts.

Since a port requires 33 watts to power up a PoE+ device, there is not enough

available power to power another device.

Power

Fault

Locator

Console

LEDMode

ClearReset

PoE+Integrated10/100/1000Base-TPorts(1 -48T) PortsareAuto-MDIX

Test

Tmp

Status

Dual-PersonalityPorts:10/100/1000-T(T) orSFP(S)

!

U s e

o n l y

o n e

( T o r S ) f o r e a c h

P o r t

PoE

Fan

45S 47S

46S 48S

*Spdmode: off=10Mbps, 2f lash=100Mbps, on=1Gbps, 3f lash=10Gbps

FDx

Spd

PoE

Act

*

38 40

43413937

12108642

1197531

42 44

Link Mode Link Mode

Link Mode

47T45T

46T 48TLink Mode

StatusoftheBackMdl RPSEPSProCurveSwitch

2910bl-48G-PoE

J9148A

Link Mode

Link Mode242220181614

232119171513Link Mode

Link Mode 363432302826

353331292725Link Mode

Link Mode

Usr

PoE+




or

Source ofPower

WattsAvailable



Port

Internal PoE+PowerSupply




None



power available for the 2910al-48G-PoE+ when connecting to an external

power supply.

2910al 48 portswitches



9-5

Figure 9-4. Example of a 2910al-48G-PoE+ Switch connecting to a 630 RPS/EPS



The switch can receive redundant power from the 630 RPS/EPS should the

switch’s internal power supply fail.

630 RPS/EPS

Source ofPower WattsAvailable # of Ports Powered andAverage watts/Port Redundant # of PortsPowered and Averagewatts/Port




None

Internal plusExternal PoE+

power Supply

382 + 3881

1 - 24 25 - 48

24 @ average 30.0 W each fora total of 720



24 @ average 30.0 W each fora total of 360 W



External PoE+Power Supply(failed InternalPower Supply)




None



10

Planning and Implementation for the 3500Switches

This chapter discusses the planning process to follow to successfully

implement PoE on a 3500 switch. After understanding PoE and its operating

l th t t t i l t ti i l i S “G l



10-1

rules, the next step to implementation is planning. See “General

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

planning phase.




There are four configurations for the HP ProCurve 3500:

■ HP ProCurve 3500-24-PoE Switch

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

■ HP ProCurve 3500-48-PoE Switch

■ HP ProCurve 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.



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



Planning and Implementation for the 3500 SwitchesPlanning Your PoE Configuration

HP ProCurve 3500-24-PoE Switch Configuration

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

the HP ProCurve 3500-24-PoE switch using the internal power supply.



10-2

Figure 10-1. Example of an HP ProCurve 3500-24-PoE Switch Using the InternalPower Supply


will notbe supplied with PoE power.This needs to be taken into consideration

when planning per-port PoE wattage.

For example, if port 24 is used for a mini-GBIC, then J45-port 24 is disabled.

The PoE power that was supplied to RJ45-port 24 is returned to the total

available pool of PoE power.

All 24 ports can receive up to 15.4

watts of PoE power

Source of

Power

Watts

Available

# of Ports Powered and

Average watts/Port

Redundant # of Ports

Powered and Average watts/ Port


398 24 @ average 15.4 W each fora total of 369.6 W

None



the HP ProCurve 3500-24-PoE switch when configured with an external power

supply.

3500- 24 portswitches



10-3

Figure 10-2. Example of two HP ProCurve 3500-24-PoE Switches connecting to anHP ProCurve 620 External and Redundant Power Supply (J8696A)


example.

Two HP ProCurve 3500-24-PoE switches can be supported by one 620 RPS/

EPS. This is a full redundant configuration—both of the switches can be

supplied with power should either of their internal power supplies fail. The

620 RPS/EPS can supply system power to keep the switch powered on and

PoE power to supply the attached PoE devices with power.

620 RPS/EPS

Source ofPower

WattsAvailable


internal supply


watts/Port



None


398 + 388 24 @ 15.4 W each for a totalof 369.6 W

24 @ average 15.4 W eachfor a total of 369.6 W

External PoEPower Supply(failed InternalPoE PowerSupply)


None


HP ProCurve 3500-48-PoE Switch Configuration

PoE power requirements are determined differently for the HP ProCurve 3500-

48-PoE switch. In the default configuration PoE power priority is determined

by port number, with the lowest numbered port (port 1) having the highest

priority, and the highest numbered port (port 48) having the lowest priority.

N o t e The ports configured with the highest priority of either bank (1-24 or 25-48)

receive PoE power first. For example, if the highest priority ports have been

re-configured to be 23, 24 and 47, 48, then they will receive PoE power before

the lower priority ports



10-4

the lower priority ports.

Figure 10-3. Example of an HP ProCurve 3500-48-PoE Switch


power is available for use by the two highest priority ports in the bank, (in a default configuration ports 1 and 2, or 25 and 26).

For example, the switch starts with 398 watts. Then it reserves 22 watts per

bank leaving 354 watts total for allocation. If ports 1-24 are chosen to be used

then the 22 watts that was held in reserve for that bank of ports will be added

back in for a total of 376 watts.



Source ofPower

WattsAvailable



Port




None


It takes 369.6 watts to fully provision 24 ports (plus 5 watts to account for load

fluctuations), leaving 1.4 watts to be returned to the pool of available watts.

This can then be added to the 22 watts held in reserve for the bank of ports

25-48, giving a total of available watts of 23.4 watts.

Since a port requires 17 watts to power up a device, there is enough available power to power one more device in a port, somewhere between ports 25-48,

providing 25 powered ports.

You could also load balance or split the number of devices and wattage

between the two banks of ports. The 398 watts would be divided in half; 199

watts would be allocated to ports 1-24, and 199 watts would be allocated to



10-5

p ,

ports 25-48. There could be 12 devices on the bank with ports 1-24, and 13

devices on the other bank of ports, 25-48.

Both of these examples use maximum device wattage. If however, devices

using lower wattages are connected there could be more devices connected

to the switch than shown in these examples. Each environment will be

different.

Configuring the CLI threshold command sets a threshold which informs you

when the switch is using more than the configured percentage of PoE power.

For example, if the threshold is set at 50%, the switch informs you that it hasexceeded the threshold when 51% of available PoE power is being used. See

page 13-12 for an example. For more information on the threshold command,

see the Management and Configuration Guide for your switch at




the HP ProCurve 3500-48-PoE switch.

3500- 48 portswitches

http://www.hp.com/networking/support.


http://www.procurve.com/manuals




10-6

Figure 10-4. Example of two HP ProCurve 3500-48-PoE Switches connecting to aHP ProCurve 620 External and Redundant Power Supply (J8696A)

Each of the switches can receive full redundant power from the HP ProCurve

620 RPS/EPS should one of the internal power supplies fail. The lowest loaded

bank of ports (1-24 or 25-48) has 22 watts reserved. That power is available

for use by the two highest priority ports in the bank, (in a default configuration

ports 1 and 2, or 25 and 26).

620 RPS/EPS

Source ofPower

WattsAvailable



watts/Port




None

Internal plusExternal PoEpower Supply

398 + 388 48 @ average 15.4 W each 24 @ average 15.4 W each


External PoEPower Supply(failed InternalPower Supply)

388

(22 W isreserved foreither ports1-24 or 25-48)



None

11

Planning and Implementation for the 3500ylSwitches


successfully implement PoE and PoE+ using a 3500yl switch. After




11-1



Planning Your PoE or PoE+Configuration

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

following examples you can plan, build, and connect PoE or PoE+ devices

quickly and easily.

There are eight configurations for the HP ProCurve 3500yl. Four

configurations are for standard PoE and four configurations are for PoE+:

■ HP ProCurve 3500yl-24G-PWR Switch

■

HP ProCurve 3500yl-24G-PWR Switch connecting an external power supply

■ HP ProCurve 3500yl-48G-PWR Switch

■ HP ProCurve 3500yl-48G-PWR Switch connecting an external power

supply

■ HP ProCurve 3500yl-24G-PoE+ Switch

■ HP ProCurve 3500yl-24G-PoE+ Switch connecting an external power

supply■ HP ProCurve 3500yl-48G-PoE+ Switch

■ HP ProCurve 3500yl-48G-PoE+ Switch connecting an external power

supply

Planning and Implementation for the 3500yl SwitchesPlanning Your PoE or PoE+ Configuration

Each example shows a complete configuration. A table shows the PoE or

PoE+ power available to connected PoE or PoE+ devices when using just the

switch or when connecting to an external power supply.

Once you have selected your specific configuration and the PoE or PoE+

power provided, you then add up the maximum amount of power each devicerequires (use maximum power in watts, usually found on a product’s data




HP ProCurve 3500yl-24G-PWR Configuration



11-2


The table in this example configuration contains entries that show the PoE power available for the 3500yl-24G-PWR.

Figure 11-1. Example of a 3500yl-24G-PWR Switch


will not be supplied with PoE power. Therefore that needs to be taken into

consideration when planning per port PoE wattage.

If for example, port 24 is used for a mini-GBIC, then the RJ45-port 24 is

disabled. Therefore the PoE power that was being supplied to the RJ45-port

24 is returned to the total available pool of PoE power.


Source ofPower

WattsAvailable



Port



None


The table in this example configuration contains entries that show the PoE

power available for the 3500yl-24G-PWR when connected to an external power

supply.

3500yl 24 portswitches



11-3

Figure 11-2. Example of two 3500yl-24G-PWR Switches connecting to a HPProCurve 620 External and Redundant Power Supply (J8696A)


example.

Two 3500yl-24G-PWR switches or two 3500-24-PoE switches canbe supported

by one 620 RPS/EPS. This is a full redundant configuration. Both of the

switches can be supplied with power should either of their internal power

supplies fail. The 620 RPS/EPS can supply system power to keep the switch

powered on and PoE power to supply the attached PoE devices with power.

620 RPS/EPS

Source ofPower WattsAvailable # of Ports Powered andAverage watts/Port frominternal supply

Redundant # of PortsPowered and Averagewatts/Port



None


398 + 388 24 @ average 15.4 W eachand 24 @ 7.5 W each

or


24 @ average 15.4 W eachfor a total of 369.6 W

External PoEPower Supply(failed InternalPoE PowerSupply)


None



PoE power requirements are figured differently for the 3500yl-48G-PWR

switch. In the default configuration PoE power priority is determined by port



N o t e It is the ports configured with the highest priority of either bank (1-24 or 25-

48) that will receive PoE power first. For example, if the highest priority ports

have been re-configured to be 23, 24 and 47, 48, then they will receive PoE

power before the lower priority ports.



11-4

Figure 11-3. Example of a 3500yl-48G-PWR Switch

■ The lowest loaded bank of ports (1-24 or 25-48) has 22 watts reserved.

That power is available for use by the two highest priority ports in the

bank, (in a default configuration ports 1 and 2, or 25 and 26).







Source ofPower

WattsAvailable



Port


398 25 @ average 15.4 W each48 @ average 7.5 W each48 @ average 4.0 W each

None


It takes 369.6 watts to fully provision 24 ports (plus 5 watts to account for load

fluctuations), leaving 1.4 watts to be returned to the pool of available watts.


25-48, giving a total of available watts of 23.4 watts.

Since a port requires 17 watts to power up a device, there is enough available power to power one more device in a port, somewhere between 25-48, giving

a total number of powered ports of 25.

Another example would be to load balance or split the number of devices and

wattage between the two banks of ports. In this example the total wattage of

398 would be divided in half, 199 watts would be allocated to ports 1-24, and

199 watts would be allocated to ports 25-48.



11-5

199 watts would be allocated to ports 25 48.

By load balancing in this manner there could be 12 devices on one bank of ports, say 1-24, and 13 on the other bank of ports, 25-48.




different.

There is a CLI command available, the threshold command. It has aninformational only result. This command sets a threshold, by percent, to

inform you the switch is now using more than a certain percentage of PoE

power. For example if the threshold is set at 50%, the switch will issue an

information message informing you the switch has exceeded the threshold

when 51% of available PoE power is being used. Also see page 13-12 for an

example. For more information on the threshold command, Refer to the

Management and Configuration Guide for your switch at




power available for the 3500yl-48G-PWR.

3500yl 48 portswitches






11-6

Figure 11-4. Example of two 3500yl-48G-PWR Switches connecting to a HPProCurve 620 External and Redundant Power Supply (J8696A)

Each of the two switches can receive full redundant power from the 620 RPS/

EPS shouldone of theswitches internal power supplies fail. The lowest loaded

bank of ports (1-24 or 25-48) has 22 watts reserved. That power is available

for use by the two highest priority ports in the bank, (in a default configuration

ports 1 and 2, or 25 and 26).

620 RPS/EPS

Source ofPower

WattsAvailable



watts/Port


398 25 @ average 15.4 W each48 @ average 7.5 W each48 @ average 4.0 W each

None

Internal plusExternal PoEpower Supply

398 + 388

1 - 24 25 - 48



External PoEPower Supply(failed InternalPower Supply)

388

(22 W isreserved foreither ports

1-24 or 25-48)

25 @ average 15.4 W each48 @ average 7.5 W each48 @ average 4.0 W each

None


HP ProCurve 3500yl-24G-PoE+ Configuration


power available for the 3500yl-24G-PoE+.



11-7

Figure 11-5. Example of a 3500yl-24G-PoE+ Switch


will not be supplied with PoE+ power. Therefore that needs to be taken into

consideration when planning per port PoE wattage.

If for example, port 24 is used for a mini-GBIC, then the RJ45-port 24 is

disabled. Therefore the PoE+ power that was being supplied to the RJ45-port

24 is returned to the total available pool of PoE+ power.



Source ofPower

WattsAvailable



Port


398 13 @ average 30 W each fora total of 390 W.

24 @ average 15.4 W each fora total of 369.6 W

None




Figure 11-6. Example of a 3500yl-24G-PoE+ Switch connecting to a HP ProCurve630 External and/or Redundant Power Supply (J9443A)

3500yl 24 port switch

630 RPS/EPS



11-8

630 External and/or Redundant Power Supply (J9443A)


example.

One 3500yl-24G-PoE+ switch can be supported by one 630 RPS/EPS. This is a


either part of the internal power supply fail. The 630 RPS/EPS can supply

system power to keep the switch powered on and PoE+ power to supply the

attached PoE+ devices with power.



Source ofPower

WattsAvailable


internal supply


watts/Port


398 13 @ average 30 W each fora total of 360 W


None

Internal plusExternal PoE+Power Supply1

398 + 382 26 @ average 30 W each


13 @ average 30 W each fora total of 360 W


External PoE+Power Supply

(failed InternalPoE PowerSupply)1

382 13 @ average 30 W each fora total of 360 W


None


HP ProCurve 3500yl-48G-PoE+ Configuration

PoE+ power requirements are figured differently for the 3500yl-48G-PoE+

switch. In the default configuration PoE+ power priority is determined by port




48) that will receive PoE+ power first. For example, if the highest priority

ports have been re-configured to be 23, 24 and 47, 48, then they will receive




11-9

Figure 11-7. Example of a 3500yl-48G-PoE+ Switch

■ The lowest loaded bank of ports (1-24 or 25-48) has 22 watts reserved.

That power is available for use by the two highest priority ports in thebank, (in a default configuration ports 1 and 2, or 25 and 26).







Source ofPower WattsAvailable # of Ports Powered andAverage watts/Port Redundant # of PortsPowered and Average watts/ Port


398 12 @ average 30 W each25 @ average 15.4 W each48 @ average 7.5 W each48 @ average 4.0 W each

None


It takes 330 watts to fully provision 11 ports (plus 5 watts to account for load

fluctuations), leaving 19 watts to be returned to the pool of available watts.


25-48, giving a total of available watts of 41 watts.

Since a port requires 33 watts to power up a PoE+ device, there is not enoughavailable power to power another device.


wattage between the two banks of ports. In this example the total wattage of

398 would be divided in half, 199 watts would be allocated to ports 1-24, and

199 watts would be allocated to ports 25-48.

By load balancing in this mannerthere could be 6 devices onone bank of ports,



11-10

By load balancing in this mannerthere could be 6 devices onone bank of ports,

say 1-24, and 6 on the other bank of ports, 25-48.




different.

There is a CLI command available, the threshold command. It has an

informational only result. This command sets a threshold, by percent, toinform you the switch is now using more than a certain percentage of PoE



when 51% of available PoE power is being used. Also see page 13-12 for an

example. For more information on the threshold command, Refer to the






Figure 11-8. Example of a 3500yl-48G-PoE+ Switch connecting to a HP ProCurve630 External and/or Redundant Power Supply (J9443A)

3500yl 24 port switch

630 RPS/EPS







11-11

pp y



Theswitchcan be supplied with power shouldeither part of theinternal power

supply fail. The 630 RPS/EPS can supply system power to keep the switch

powered on and PoE+ power to supply the attached PoE+ devices with power

The lowest loaded bank of ports (1-24 or 25-48) has 22 watts reserved. That power is available for use by the two highest priority ports in the bank, (in a


Source ofPower

WattsAvailable



watts/Port




None

Internal plusExternal PoE+power Supply1

398 + 382

1 - 24 25 - 48

24 @ average 30 W each48 @ average 15.4 W each

12 @ average 30 W each24 @ average 15.4 W each48 @ average 7.5 W each

External PoE+Power Supply(failed InternalPower Supply)1

382

(22 W isreserved for

either ports1-24 or 25-48)

12 @ average 30 W each25 @ average 15.4 W each48 @ average 7.5 W each48 @ average 4.0 W each

None



12

Planning and Implementation for the E3800Switches


successfully implement PoE and PoE+ using a E3800 Switch. After






12-1

N o t e In thestacked environment,the PoE/PoE+ willstill be managed at themember

level. This means that power available to one member cannot be shared with

other members. The PoE features will have to be configured member-by-

member.

N o t e By default, LLDP on each switch is enabled. PoE+ (802.3at) Powered Devices

(PD) that only support 2-event class signature may not be able to negotiate

for additional power when connected to the switch. In such cases, the LLDP

option on the switch port must be disabled to enable the 2-event classification

so that such PoE+ PDs may be detected. For information on CLI commands

to disable LLDP, see the Management and Configuration Guide for your

switch.

Planning Your PoE or PoE+Configuration

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

following examples you can plan, build, and connect PoE or PoE+ devices

quickly and easily.

There are four configurations for HP E3800 Switches:

■ HP E3800-24G-PoE+-2SFP+ Switch, or HP E3800-24G-PoE+-2XG Switch,

with one power supply


with two power supplies

Planning and Implementation for the E3800 SwitchesPlanning Your PoE or PoE+ Configuration


with one power supply


with two power supplies

Each example shows a complete configuration. A table shows the PoE or PoE+ power available to connected PoE or PoE+ devices when using one or

two power supplies in the switch. Only the 1000 watt power supply can be

used for PoE/PoE+ applications. The power supplied by the power supply

depends upon what voltage is applied to it and into which switch the power

supply is installed.

■ When supplied with 110 V, the power supply runs at a max of 700 W:

• When the power supply is installed in the HP E3800-24G-PoE+-2SFP+



12-2

or HP E3800-24G-PoE+-2XG Switch, 127 W is reserved for system

operation leaving 573 W for PoE/PoE+ operation. When a second

power supply is installed the total amount of wattage can be allocated

for PoE/PoE+ operation. In this case, with the combined 700W and

573W supplied, up to 1080 W for PoE/PoE+ operation is available.

• When installed in the HP E3800-48G-PoE+-4SFP+ or HP E3800-48G-

PoE+-4XG Switch, 185 W is reserved for system operation leaving 515

W for PoE/PoE+ operation. When a second power supply is installedthe total amount of wattage can be allocated for PoE/PoE+ operation

up to 1080 watts. Limiting the total number of PoE+ ports to 36.

■ When supplied with 220 V, the power supply runs at a max of 1000 W:

• When the power supply is installed in the HP E3800-24G-PoE+-2SFP+

or HP E3800-24G-PoE+-2XG Switch, 127 W is reserved for system

operation leaving 873 W for PoE/PoE+ operation. When a second

power supply is installed the total amount of wattage can be allocated

for PoE/PoE+ operation up to 1080 watts.

• When installed in the HP E3800-48G-PoE+-4SFP+ or HP E3800-48G-

PoE+-4XG Switch, 185 W is reserved for system operation leaving 815

W for PoE/PoE+ operation. When a second power supply is installed

the total amount of wattage can be allocated for PoE/PoE+ operation

up to 1080 watts. Limiting the total number of PoE+ ports to 36.

Once you have selected your specific configuration and the PoE or PoE+

power provided, you then add up the maximum amount of power each devicerequires (use maximum power in watts, usually found on a product’s data





All these calculations assume worst-case device power and 100M cables and

are the most conservative estimate of what can be supported. Actual power

usage and number of devices supported will be different in each case.

HP E3800-24G-PoE+-2SFP+ or HP E3800-24G-PoE+-2XG Switch Configurations


power available for the E3800-24G-PoE+-2SFP+ or E3800-24G-PoE+-2XG

Switch when using only one power supply.



12-3

Figure 12-1. Example of the E3800-24G-PoE+-2SFP+ or E3800-24G-PoE+-2XG Switchwith one power supply installed

In this configuration there is no backup if the power supply fails. All switch

power and PoE power will be lost.

19 ports can supply up to 30 wattsof PoE+ power or 24 ports cansupply 15.4 watts of PoE power

Source ofPower

WattsAvailable



Port

One 1000watt PowerSupply

127 W forsystem use,and 573 W forPoE+ @ 110 V

19 @ average 30 W each fora total of 570 W.



None

One 1000watt PowerSupply

127 W forsystem use,873 W forPoE+ @ 220 V

24 @ average 30 W each fora total of 720 W.


None




Switch when two power supplies are installed.

All 24 ports can supply up to 30watts of PoE+ power or 15.4 watts

of PoE power



12-4

Figure 12-2. Example of the E3800-24G-PoE+-2SFP+ or E3800-24G-PoE+-2XG Switchwith two power supplies installed

Two power supplies can be installed in the E3800-24G-PoE+-2SFP+ or E3800-

24G-PoE+-2XG Switch to add more PoE/PoE+ power or to provide backup

power should one of the power supplies fail.

For example, if there are two 1000 watt power supplies installed, wattage from

one of the power supplies can be used to supply PoE/PoE+ power to the ports

and the other power supply can be held in reserve. Should the first power

supply fail the reserve power supply can pick up the load and supply the

needed PoE/PoE+ power. Or, both power supplies can be used to supply a

maximum wattage of PoE/PoE+ power.

Source ofPower Watts Available # of Ports Powered andAverage watts/Port frominternal supply

Redundant # of PortsPowered and Averagewatts/Port

Two 1000 wattPower Supplies

127 W forsystem use, and573 W + 700 W(for a max of 720W) for PoE+ @110 V




19 @ average 30 Weach for a total of570 W

Two 1000 wattPower Supplies

127 W forsystem use, and873 W + 1000 W(for a max of 720W) for PoE+ @220 V




24 @ average 30 Weach for a total of720 W


HP E3800-48G-PoE+-4SFP+ or HP E3800-48G-PoE+-4XG Switch Configurations

The table in this example configuration contains entries that show the PoE/

PoE+ power available for the E3800-48G-PoE+-4SFP+ or E3800-48G-PoE+-

4XG Switch when using only one power supply.

PoE power requirements are figured differently for the E3800-48G-PoE+-

4SFP+ or E3800-48G-PoE+-4XG Switch. In the default configuration PoE/

PoE+ power priority is determined by port number, with the lowest numbered

port (port 1) having the highest priority, and the highest numbered port (port

48) having the lowest priority.

N t ( 2 2



12-5


48) that will receive PoE/PoE+ power first. For example, if the highest priority

ports have been configured to be 23, 24 and 47, 48, then they will receive PoE/


Figure 12-3. Example of a E3800-48G-PoE+-4SFP+ or E3800-48G-PoE+-4XG Switchwith one power supply installed

In this configuration there is no backup if the power supply fails. All switch

power and PoE power will be lost.

Up to 17 ports can supply 30watts of PoE+

or 33 ports can supply up to 15.4watts of PoE power

Source of

Power

Watts

Available

# of Ports Powered and

Average watts/Port

Redundant # of Ports

Powered and Average watts/ Port

One 1000 wattPower Supply

185 W forsystem use,and 515 W forPoE+ @ 110 V




None





For example, the switch starts with 700 or 1000 watts. Depending on which

voltage is applied to the switch 110 or 220 The switch will use 185 W for

One 1000 wattPower Supply

185 W forsystem use,

and 815 W forPoE+ @ 220 V




None

Source ofPower

WattsAvailable



Port



12-6

voltage is applied to the switch, 110 or 220. The switch will use 185 W for switch operation. This drops the usable PoE/PoE+ wattage down to either 515

W for 110 voltage or 815 W for 220 voltage.

Then it reserves 22 watts per bank leaving 471 W at 110 voltage or 771 W at

220 voltage for PoE/PoE+ allocation. If ports 1-24 are chosen to be used then

the 22 watts that was held in reserve for that bank of ports will be added back

in for a total of 493 W at 110 voltage or 793 W at 220 voltage.

It takes 720 watts to fully provision 24 ports (plus 5 watts to account for load

fluctuations, 725 watts), therefore, at 110 voltage and 493 W, only 16 ports can

be provisioned. If a second power supply is added at 110 voltage, that would

add 700 watts because the 127 watts for system power would be coming from

the initial power supply. This would allow for a maximum of 1080 W for PoE/

PoE+ provisioning. This would allow for 36 ports to receive up to 30 W of PoE/

PoE+ power.

However, if the switch is supplied with 220 volts then there would be 815 Wfor PoE/PoE+ provisioning. This would provision 27 ports with 30W of PoE+

power. If a second power supply is added at 220 volts, that would add 1000

watts because the185 watts forsystem power would be comingfrom theinitial

power supply. This would allow for a maximum of 1080 W for PoE/PoE+

provisioning. This would allow for 36 ports to receive up to 30 W of power.

These examples hold true unless the second power supply is configured as a

redunant power supply. Then all wattages must be figured on a single power supply.


wattage between the two banks of ports. In this example the total wattage

would be divided in half where half of the available watts would be allocated

to ports 1-24, and the other half would be allocated to ports 25-48.


By load balancing in this manner there could be a specified number of devices

on one bank of ports, say 1-24, and another specified number of devices on

the other bank of ports, 25-48 powered at an average of 30 watts each.




different.

There is a CLI command available, the THRESHOLD command. It has an

informational only result. This command sets a threshold, by percent, to

inform you the switch is now using more than a certain percentage of PoE



when 51% of available PoE power is being used Also see page 13-12 for an



12-7

when 51% of available PoE power is being used. Also see page 13-12 for anexample. For more information on the threshold command, Refer to the





Switch when two power supplies are installed.

Figure 12-4. Example of E3800-48G-PoE+-4SFP+ or E3800-48G-PoE+-4XG Switchwith two power supplies installed

The switch can supply full redundant power from the second power supply

should one of the power supplies fail, however PoE/PoE+ power will be

reduced until the failed power supply is replaced.




36 ports can supply up to 30 wattsof PoE+ power


Source ofPower

Watts Available # of Ports Powered andAverage watts/Port


watts/Port

Two 1000

watt PowerSupplies

185 W for system

use, and 515 W+700 W (for a max of1080 W) @ 110 V

36 @ average 30 W each for a

total of 1080.48 @ average 15.4 W each


17 @ average 30 W each

for a total of 570 W33 @ average 15.4 W each


Two 1000watt PowerSupplies

185 W for systemuse, and 815 W+1000 W (for a max of1080 W) @ 220 V

36 @ average 30 W each for amaximum of 1080 W



27 @ average 30 W eachfor a total of 810 W







12-8

13

Planning and Implementation for the E5400zl/ E8200zl Switches


successfully implement PoE or PoE+ on E5400zl/E8200zl switches. The

E5412zl chassis and the E8212zl chassis share a common PoE/PoE+

implementation, and the E5406zl chassis and the E8206zl chassis share a

common PoE/PoE+ implementation. Port counts, power supply wattages,

specifications, and functionality for these two platforms are the same with



13-1

p , y p

respect to PoE and PoE+.

After understanding what PoE is and its operating rules, the next step to



Planning and Implementation for the E5400zl/E8200zl SwitchesPlanning Your 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.

Yourconfigurationmayvary,however,thissectiondiscussessomeofthemore


Power Configuration for HP E5406zl/E8206zl PoESwitch

13 1 13 2



13-2

Tables 13-1 and 13-2 show the maximum system power available for various

power configurations. The configurations can be for full redundancy or for

N+1 redundancy, as illustrated in figure 13-1.

Figure 13-1. Example of Full and N+1 Redundancy Configuration

900 Watts PoE/PoE+ power








Full Redundancy: When full redundancy is configured, half of the available PoE/PoE+ poweris held in reserve to provide full replacement PoE/PoE+ power.

N+1: When N+1 redundancy is configured, one of the power supplies is held in reserve toprovide replacement PoE/PoE+ power.


Table 13-1. E5406zl/E8206zl System Power Configurations

Table 13-2. E5406zl/E8206zl System Power Configurations (J9306A)

Number of Power Supplies Redundancy Model

J8712A(110 or 220 V)

J8713A(220 V only)

N + 1 or Full Redundant System Power

System Power(12v) 1 0 - None

2 0 Full up to 600 W system power

0 1 - None

0 2 Full Up to 600 W system power



13-3

Table 13-3 shows the maximum PoE power available for various power

configurations.

Table 13-3. E5406zl/E8206zl Power Configurations for PoE Only (not PoE+)


J9306A N + 1or

Full

Redundant System Power

System Power (12v) @ 110-127 V @ 200-240 V

1 0 - None

2 0 Full up to 600 W system power

0 1 - None


Switch Model E5406zl/ E8206zl

Number of Power Supplies Redundancy Model Non-RedundantPower Available

J8712A(110 or 220 volts)

J8713A(220 volts only)

N + 1or

Full

Redundant PoE Power Non-RedundantPoE Power

PoE Power (50v)

Internal

1 0 - None 273 W

2 0 Full Up to 273 W 546 W

0 1 - None 900 W

0 2 Full Up to 900 W 1800 W


Mixed PoE Power(NOT Recommended))

1 1 N+1 System and Redundancy -up to 273 W, see page 13-

13

1173 W

(With External PowerSupplies Added>

3 0 N+1 Up to 546 W 819 W

4 0 Full Up to 546 W 1092 W

0 3 N+1 Up to 1800 W 2700 W

0 4 Full Up to 1800 W 3600 W



J8712A(110 or 220 volts)


N + 1or

Full




13-4

Power Configuration for HP E5406zl/E8206zlPoE/PoE+ Switches

N o t e Using PoE power supplies J8712A and J8713A with J9306A in PoE/PoE+

systems is NOT supported. Use the J9306A zl power supply for systems

providing both PoE and PoE+ power.

Table 13-4 shows the maximum PoE/PoE+ power available for various power

configurations.

Table 13-4. E5406zl/E8206zl Power Configurations for PoE/PoE+

0 4 Full Up to 1800 W 3600 W


Number of Power SuppliesJ9306A

Redundancy Model Non-RedundantPower Available

@ 110 - 127 V @ 200-240 V N + 1 or

Full

Redundant PoE/PoE+

Power

Non-Redundant

PoE/PoE+ Power

PoE/PoE+ Power(54v) Internal

1 0 - None 300 W

2 0 Full Up to 300 W 600 W

0 1 - None 900 W

0 2 Full Up to 900 W 1800 W


Power Configuration for HP 5412zl/8212zlPoE Switches


3 0 N+1 Up to 600 W 900 W

4 0 Full Up to 600 W 1200 W

0 3 N+1 Up to 1800 W 2700 W

0 4 Full Up to 1800 W 3600 W




@ 110 - 127 V @ 200-240 V N + 1 orFull

Redundant PoE/PoE+Power

Non-RedundantPoE/PoE+ Power



13-5

The HP ProCurve 5412zl and 8212zl switches require a minimum of two power

supplies to function. Tables 13-5 and 13-6 show the maximum system power

available for various power configurations.

Table 13-5. 5412zl/8212zl System Power Configurations


J8712A(110 or 220 V)

J8713A(220 V only)

N + 1 or Full Redundant System Power

System Power(12v) 2 0 - None

3 0 N+1 Up to 1200 W system power


0 2 - None




Table 13-6. 5412zl/8212zl System Power Configurations (J9306A)


J9306A N + 1or

Full

Redundant System Power

System Power (12v) @ 110-127 V @ 200-240 V

2 0 - None



0 2 _ None





13-6

Table 13-7 shows the maximum PoE power available for various power

configurations.

Table 13-7. 5412zl/8212zl Power Configurations for PoE Only (not PoE+)

Switch Model 5412zl/ 8212zl


J8712A(110 or 220 volts)


N + 1or

Full


PoE Power (50v)Internal

2 0 - None 546 W

3 0 N+1 Up to 546 W 819 W

4 0 Full Up to 546 W 1092 W

0 2 - None 1800 W

0 3 N+1 Up to 1800 W 3600 W

0 4 Full Up to 1800 W 3600 W

Mixed PoE Power(NOT Recommended)) 2 1 N+1 Up to 273 W 1446 W

1 2 N+1 Up to 900 W 2073 W

2 2 N+1 Up to 1173 W 2346 W


Power Configuration for HP 5412zl/8212zl PoE/PoE+Switches


5 0 N+1 Up to 1092 W 1365 W

6 0 Full Up to 819 W 1638 W

0 5 N+1 Up to 3600 W 4500 W

0 6 Full Up to 2700 W 5400 W

Switch Model 5412zl/ 8212zl


J8712A(110 or 220 volts)


N + 1or

Full




13-7

Switches

Table 13-8 shows the maximum PoE/PoE+ power available for various power

configurations.

N o t e Using PoE power supplies J8712A and J8713A with the J9306A in PoE/PoE+switches is NOT supported. Use the J9306A zl power supply for switches

providing both PoE and PoE+ power.

Planning and Implementation for the E5400zl/E8200zl Switches


Table 13-8. E5412zl/E8212zl Power Configurations for PoE/PoE+




@ 110 - 127 V @ 200-240 V N + 1 or

Full

Redundant PoE/PoE+

Power

Non-Redundant

PoE/PoE+ PowerPoE/PoE+ Power

(54v) Internal2 0 - None 600 W

3 0 N+1 Up to 300 W 900 W

4 0 Full Up to 600 W 1200 W

0 2 - None 1800 W

0 3 N+1 Up to 900 W 2700 W

0 4 Full Up to 1800 W 3600 W



13-8

0 4 Full Up to 1800 W 3600 W


5 0 N+1 Up to 1200 W 1500 W

6 0 Full Up to 900 W 1800 W

0 5 N+1 Up to 3600 W 4500 W

0 6 Full Up to 2700 W 5400 W


Configuration Examples


In the following configuration examples, each example shows a complete

configuration. A table shows the PoE power available to connected PoEdevices when using just the switch and when connecting an external power

supply.


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

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.



13-9

HP ProCurve 5406zl Configurations

The table in each example configuration contains entries that show the PoE

power available for the PoE modules.

Figure 13-2. Example of a 5406zl with one power supply, J8712A

In this example there is one J8712A power supply supplying 273 watts for PoE

usage.

14 ports on module A and 2 ports on module Bcan receive up to 15.4 watts of PoE power

FrontBack

Power SupplyJ8712A

273 wattsfor PoE

Source of Power Watts Available # of Ports Powered and Average watts/ Port

Redundant # of Ports Powered andAverage watts/Port

Single InternalPower Supply(J8712A)

273 16 @ average 15.4 W



None



To achieve the 16 ports at 15.4 watts the PoE devices must be divided up and

connected to two different modules. Remember, as soon as a module is

installed into the switch, 22 watts are reserved for its use.

In order to use those watts, devices must be connected to that module or PoE

power must be disabled to all ports on that module.

If PoE power is disabled toall ports ona module the 22 watts that was reserved

for that module is returned to the pool of available watts and can be used by

another module’s ports.

In this example (Figure 13-3) there are three modules in the chassis; 22 watts

is reserved for each module. In order to use the 22 watts, PDs must be

connected to each module, or all ports on one module could have the PoE

power disabled.



13-10

Figure 13-3. Example of a 5406zl with two power supplies, J8712A

There are two power supplies supplying 273 watts each for a maximum of 546

watts.


The PoE power for all ports on this module has been disabled

Power SupplyJ8712A

273 wattsfor PoE

273 wattsfor PoE



Two InternalPower Supplies(J8712A)

546 (withoutredundancy)




17 @ average 15.4 W



Two ExternalPower Supplies(J8712A)

Additional 546 70 @ average 15.4 W each144 @ average 7.5 W each


35 @ average 15.4 W72 @ average 7.5 W each




In this example the load must be balanced or split between two or three

modules in order to effectively use all 546 watts. The number of devices and

wattage must be split between the modules. This would also help limit the

effects of a single module failure. If one module fails, only the devices on that

module would lose power.

Alternatively, one power supply could be used to supply PoE power at 273watts and the other power supply could be held in reserve as a secondary

power supply if the primary power supply fails. If both power supplies are

connected to different power sources, one could backup the other in case of

failure. With this option the user must manage the PoE usage in order to

maintain redundancy.

Connecting a fully loaded external power supply can double the available PoE

power. See page 13-14.



13-11

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 900watts 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.

BackPower Supply

J8713AFront

900 wattsfor PoE

Source of Power Watts Available # of Ports Powered and Average watts/

Port

Redundant # of Ports Powered and

Average watts/Port

Single InternalPoE PowerSupply (J8713A)




None



Figure 13-5. Example of a 5406zl with two power supplies, J8713A

This configuration (Figure 13 5) is an example of two power supplies

Power SupplyJ8713A

Front

900 wattsfor PoE

900 wattsfor PoE



13-12

This configuration (Figure 13-5) is an example of two power supplies

supplying 900 watts each for a maximum of 1800 watts to a fully loaded chassis

of 144 ports. Therefore out of the total 144 available ports, 116 can be powered

at 15.4 watts each.

Alternatively, one power supply could be used to supply PoE power at 900

watts and the other power supply could be used as a secondary power supply.

If both power supplies are connected to different power sources, one could

backup the other in case of failure. With this option the user must manage the

PoE usage in order to maintain redundancy.

In this example the threshold command could be set at 50%, and if the switchbegins to use more than 900 watts an event message would be logged, allowing

you to adjust the PoE load or add a Power Supply Shelf for additional power

as required to obtain the best power balance for your operation.

Connecting a fully loaded external power supply can double the available PoE

power. See page 13-14.

Source of Power Watts Available # of Ports Powered and Averagewatts/Port


Two Internal PoEPower Supplies(J8713A)








Two ExternalPower Supplies

(J8713A)

Additional 1800 144 @ average 15.4 W each








Figure 13-6. Example of a 5406zl with two power supplies (J8712A and J8713A)

In this example (Figure 13-6) there is oneJ8712A andone J8713Apowersupplysupplying 1173 watts for PoE usage. This configuration offers 136 ports of

hi h ll b d t 7 0 tt h d ff i ht t f fib

Power SupplyJ8712AFront

Power SupplyJ8713A

273 wattsfor PoE

900 wattsfor PoE



13-13

which all can be powered at 7.0 watts each, and offers eight ports for fiber

optic gigabit connectivity.

N o t e HP ProCurve Networking highly recommends that the two types of power

supplies are not mixed in the same 5406zl chassis.

One power supply (J8712A) could be used to supply PoE power at 273 watts

and the other power supply (J8713A) could be used as a secondary power

supply. If both power supplies are connected to different power sources, one

could backupthe other in case of failure. However, if the J8713A power supply

fails, the J8712A can keep the switch running but cannot supply all the PoE power that the J8713A was supplying. Therefore you need to plan very

carefully when using this configuration.



Two Internal PoEPower Supplies:one J8712A

one J8713A





17 @ average 15.4 W





In a system with mixed power supplies, failover is calculated based on the

largest power supply failing. If it turns out to be the smaller power supply that

fails, some of the ports that were powered off during the power failure will

come back on. For example, in figure 4-5 there are mixed power supplies

offering 900 W+ 273 W for 1173 W total. Failover power will be calculated at

273 W, so if a power supply fails all the controllers will fall back to a power

level that can be supported by 273 W. If it turns out the 273 W supply failed,

the system will detect that during the power supply polling cycle and increase

power back up to 900 W total. This would result in some load coming back on

if the total power used by all the loads in the box was greater than 273 W.

ProCurve E5406zl and E8206zl Configurationsusing the Power Supply Shelf

The following example configurations are the same for the E5406zl and

E8206zl switches. As shown in Figures 13-7 and 13-8, the Power Supply Shelf



13-14

can be connected to the E5406zl or the E8206zl to supply extra or redundant

PoE/PoE+ power to the PoE modules.

Figure 13-7. Connecting the EPS to one E5406zl or E8206 zl switch

Figure 13-8. Connecting the EPS to two E5406zl or E8206zl switches

To PowerSource

EPS Cables

To PowerSource

E5406zlorE8206zl

EPS Cables

E5406zlorE8206zl

E5406zlorE8206zl

To PowerSource

To PowerSource



Example Configuration for HP ProCurve E5406zlWith One PoE/PoE+ Power Supply

In this example there is one J9306A power supply operating at 110-127 volts,

providing 300 watts for PoE/PoE+ usage.

300 wattsfor PoE/

PoE+



13-15

Figure 13-9. Example of a 5406zl with One Power Supply (J9306A) @ 110-127 Volts

BackPower SupplyJ9306A

Front

Source of Power Watts Available(110-127 V)

# of Ports Powered and Average watts/ Port


Single InternalPoE+ PowerSupply (J9306A)

300 W 10 @ average 30 W each




None



Example Configuration for HP ProCurve E8206zlwith One PoE/PoE+ Power Supply

In this example there is one J9306A power supply operating at 200-240 volts,

providing 900 watts for PoE/PoE+ usage.



13-16

Figure 13-10.HP ProCurve E8206zl Switch

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 that

could be powered by a single J9306A power supply.

Source of Power Watts Available(200-240 V)

# of Ports Powered and Average watts/ Port


Single InternalPoE+ PowerSupply (J9306A)

900 W 30 @ average 30 W each




None



Example Configuration for HP ProCurve E8206zlwith Two PoE/PoE+ Power Supplies

This configuration is an example of two PoE+ power supplies supplying 900

watts each for a maximum of 1800 watts to a fully loaded chassis of 144 ports.



Two Internal PoE/PoE+ PowerSupplies(J9306A)










Two ExternalPoE/PoE+ PowerSupplies( )

Additional 1800 120 @ average 30 W each








13-17

Another option is for one power supply to provide PoE power at 900 watts

and the other power supply to be used as a secondary power supply. If both

power supplies are connected to different power sources, one can backup the

other in case of failure. With this option you must manage the PoE usage in

order to maintain redundancy.

HP ProCurve E8206zl Configurations using thePower Supply Shelf

The Power Supply Shelf can be connected to the E8206zl to supply extra or

redundant PoE power to the PoE modules. See Figures 13-7 and 13-8 for

representative examples of using the Power Supply Shelf.

(J9306A)144 @ average 7.5 W each






HP ProCurve 5412zl/8212zl Configurations

The 5412zl chassis and the 8212zl chassis share a completely common PoE/

PoE+ implementation. Port counts, power supply wattages, specifications,

and functionality for these two platforms are the same with respect to PoE.

This section is divided into sub-sections:

■ Standard J8712A Configurations

■ Standard J8713A Configurations

■ Mixed J8712A and J8713A Configurations

■ Using the J9306A Power Supply

■ HP ProCurve 5412zl/8212zl Configurations using the Power Supply Shelf

Standard J8712A Configurations




13-18


power available for the PoE modules. There needs to be two power supplies

in the 5412zl/8212zl chassis to power all 12 slots. Only one power supply in

the 5412zl/8212zl is an unsupported configuration.

Figure 13-11.Example of a 5412zl with two power supplies, J8712A

In this example (Figure 13-11) there are two power supplies supplying 273

watts each for a maximum of 546 watts.

35 ports can receive up to15.4 watts of PoE powerThe PoE power for all ports on

this module have been disabled

273 wattsfor PoE

273 wattsfor PoE

BackFront




connected to two different modules. Remember, as soon as a module is

installed into the switch, 22 watts is reserved for its use.

In order to use those watts, devices must be connected to that module or PoE

power must be disabled to all ports on that module.

If PoE power is disabled toall ports ona module the 22 watts that was reserved

for that module is returned to the pool of available watts and can be used by

another module’s ports.

In this example the load must be balanced or split between two or three

modules in order to effectively use all 546 watts. The number of devices and

wattage must be split between the modules. This would also help limit the

effects of a single module failure. If one module fails, only the devices on thatmodule would lose power.

In this example, there are three modules in the chassis and therefore 22 watts



13-19

,

is reserved for each module. In order to use the 22 watts, PDs must be

connected to each module. Or all ports on one module could have the PoE

power disabled.

There is no redundant power with this configuration. If a power supply fails,

the remaining power supply can keep the switch running, but cannot supplyall the PoE power needed by the modules.



Two Internal

Power Supplies(J8712A)

546 (without

redundancy)



None



53 ports can receive up to 15.4 watts of PoE

273 wattsfor PoE

273 wattsfor PoE

273 wattsfor PoE

BackFront

5 ports must be usedon this module



13-20

Figure 13-12.Example of a 5412zl with three power supplies, J8712A

In this example (Figure 13-12) there are three power supplies supplying 273



connected to three different modules. Remember, as soon as a module is

installed into the switch, 22 watts is reserved for its use.

In this configuration one power supply (273 watts) could be used for

redundant power. However, remember it can only support a limited number

of ports depending on the wattages that are being supplied to the ports.



Three InternalPower Supplies(J8712A)




17 @ average 15.4 W36 @ average 7.5 W each





BackFront

273 wattsfor PoE

273 wattsfor PoE

273 wattsfor PoE

273 wattsfor PoE



13-21

Figure 13-13.Example of a 5412zl with four power supplies, J8712A

In this example (Figure 13-13) there are four power supplies supplying 273


All three modules can be used or six and a half modules (145 ports) at 7.5 watts

per port.

Two power supplies could be used to supply PoE power at 546 watts and the

other two power supplies could be held in reserve as redundant power

supplies if the primary power supplies fail. If two power supplies are

connected to different power sources, they could backupthe other two in case

of failure. With this option the user must manage the PoE usage in order to

maintain redundancy.



Four Internal

Power Supplies(J8712A)

1092 (without

redundancy)



35 @ average 15.4 W




Standard J8713A Configurations

BackFront

900 wattsfor PoE

900 wattsfor PoE



13-22

Figure 13-14.Example of a 5412zl with two power supplies, J8713A

This configuration (Figure 13-14) is an example of two power supplies

supplying 900 watts each for a maximum of 1800 watts to a fully loaded chassisof 288 ports. Therefore out of the total 288 available ports, 116 can be powered

at 15.4 watts each. That’s equal to a little over 4 modules, or all ports could be

used at 4.0 watts.

55 ports could be provisioned at 15.4 watts using 847 watts of the total 1800

leaving 953 watts. Then provision the other 238 ports at 4 watts using 952 watts

of the remaining 953 watts. Finally leaving 1 watt.

This configuration could be redundant for PoE power up to 900 W. The upper

6 slots would stay up if they were the ports suppling the PoE power and the

lower 6 slots were used for other than PoE power. One power supply has

enough power to supply system power to the upper 6 slots and keep the switch

up and running. And as long as the 900 watts of PoE power is not exceeded,

then the top 6 modules would remain powered.

Back



Two Internal PoEPower Supplies(J8713A)





None



BackFront

900 wattsfor PoE

900 wattsfor PoE

900 wattsfor PoE



13-23

Figure 13-15.Example of a 5412zl with three power supplies, J8713A

This configuration (Figure 13-15) is an example of three power supplies


of 288 ports. Therefore out of the total 288 available ports, 175 can be poweredat 15.4 watts each. That’s equal to a little over 6 and a half modules. Or all ports

could be used at 7.5 watts.


other one power supply could be held in reserve as redundant power supply

if one of the primary power supplies fail. However this configuration cannot

be fully redundant.



Three InternalPoE PowerSupplies(J8713A)

2700 (withoutredundancy) 175 @ average 15.4 W each288 @ average 7.5 W each






Fig re 13 16 E ample of a 5412 l ith fo r po er s pplies J8713A

BackFront

900 wattsfor PoE

900 wattsfor PoE

900 wattsfor PoE

900 wattsfor PoE



13-24

Figure 13-16.Example of a 5412zl with four power supplies, J8713A

This configuration (Figure 13-16) is an example of four power supplies


of 288 ports. Therefore out of the total 288 available ports, 233 can be poweredat 15.4 watts each.


other two power supplies could be used as secondary power supplies. If the

two sets of power supplies are connected to different power sources, one set

of two could backup the other two in case of failure. With this option the user

must manage the PoE usage in order to maintain redundancy.



Four Internal PoEPower Supplies(J8713A)










Mixed J8712A and J8713A Configurations

N o t e HP Procurve highly recommends that the two types of power supplies are not

mixed in the same 5412zl or 8212zl chassis.

Although mixing power supplies is not recommended, the following examples

demonstrate the most common usages. Refer to page 13-13 for the discussion

on failover in a mixed power supply environment.

273 wattsfor PoE

273 wattsfor PoE

900 wattsfor PoE



13-25

Figure 13-17.Example of a 5412zl with three power supplies (two J8712A and one J8713A)

This configuration (Figure 13-17) is an example of three power supplies two

J8712As supplying 546 watts and one J8713A supplying 900 watts for a

maximum of 1446 watts. Therefore out of the total 288 available ports, 93 canbe powered at 15.4 watts each.

Redundancy now becomes an issue. You can use the one J8713A (900 watts)

to backup the two J8712As if either one of them fails, but you cannot use the

two J8712As to backup the J8713A as they don’t have enough PoE power.

BackFront

for PoE for PoE



Three Internal PoEPower Supplies: two

J8712As one J8713A





None



The J8713A is only be able to power 6 module slots should both of the J8712As

fail. You may not be able to supply all ports with PoE power depending on

which modules and which ports are configured to supply PoE power.

900 wattsfor PoE

900 wattsfor PoE

273 wattsfor PoE



13-26

Figure 13-18.Example of a 5412zl with three power supplies (one J8712A and two J8713A)

This configuration (Figure 13-18) is an example of using three power

supplies—one J8712A supplying 273 watts and two J8713As supplying 1800

watts—supplying a maximum of 2073 watts. A total of 134 ports can be

powered at 15.4 watts each.

In this example, one J8713A could be held in reserve to provide redundant power for the other J8713A since they are equal in power. However if the

J8712A should fail there would be no redundancy for that power supply unless

you borrow power from the reserve J8713A. If you do that and the primary

J8713A fails, there will not be enough power to fully backup the failed J8713A.

BackFront

Source ofPower

WattsAvailable



Three InternalPoE PowerSupplies: oneJ8712A twoJ8713As





58 @ average 15.4 W each with a J8713A in reserve





BackFront

900 wattsfor PoE

900 wattsfor PoE

273 wattsfor PoE

273 wattsfor PoE



13-27

Figure 13-19.Example of a 5412zl with four power supplies (two J8712A and two J8713A)

In this example (Figure 13-19) there are two J8712A and two J8713A power

supplies supplying2892 watts forPoE usage.With this configuration, 187ports(or more than 7 modules) can be provisioned at 15.4 watts, or all 288 ports can

be powered at 7.0 watts each.

N o t e HP ProCurve highly recommends that the two types of power supplies are not

mixed in the same 5412zl/8212zl chassis.

The reason the redundant # of ports in this table is so low is because redundant

PoE power should always be based on the smallest power supply. In this case

the smallest power supply is the 8712A providing 546 watts.



Four Internal PoEPower Supplies:

two J8712As and

two J8713As





35 @ average 15.4 W





Using the HP ProCurve 1500W PoE+ zl Power Supply (J9306A)

The J9306A power supply provides PoE/PoE+ power for zl switches. The

physical configurations are like those seen for the E5400zl/E8200zl switches

with the other power supplies. The J9306A operates at 110-127V supplying 300

watts of PoE/PoE+ power, and 200-240V supplying 900 watts of PoE/PoE+ power.

N o t e o n M i x i n gP o w e rS u p p l i e s

Using a combination of the PoE power supplies J8712A and/or J8713A and a

J9306A in PoE/PoE+ systems is NOT supported.

The following example shows how many PoE/PoE+ ports can be powered at

various wattages for the J9306A power supply operating at 110-127 volts.



13-28

The next example shows how many PoE/PoE+ ports can be powered at

various wattages for the J9306A power supply operating at 200-240 volts.

Source of Power Watts Availableat 110-127V

# of Ports Powered and Averagewatts/Port


Two Internal PoE/PoE+ PowerSupplies(J9306A)










Four InternalPoE/PoE+ PowerSupplies

(J9306A)










Four Internal plusTwo ExternalPoE/PoE+ PowerSupplies(J9306A)

Additional 600 fora total of 1800(withoutredundancy)


116@ average 15.4 W each









Source of Power Watts Availableat 200-240V

# of Ports Powered and Averagewatts/Port


Two Internal PoE/PoE+ Power

Supplies(J9306A)








Four InternalPoE/PoE+ PowerSupplies(J9306A)










Four Internal plus

Two ExternalPoE/PoE+ PowerSupplies(J9306A)

Additional 1800

for a total of 5400(withoutredundancy)









13-29

Figure 13-20.Example of a E5412zl with four power supplies (J9306A) operating at 200-240 volts

BackFront

900 watts forPoE/PoE+






ProCurve 5412zl/8212zl Configurations usingthe Power Supply Shelf

The Power Supply Shelf can be connected to the 5412zl/8212zl to supply extra

or redundant PoE power to the PoE modules installed in the 5412zl/8212zl.

Either EPS port on the Power Supply Shelf can be connected to either EPS port on the switch. To avoid confusion, it is recommended that EPS 1 of the

Power Supply Shelf be connected to EPS 1 of the switch.

To PowerSource

To PowerSource

EPS 1



13-30

Figure 13-21.Connecting the EPS to one 5412zl switch

EPS Cables

5412zl

To Power

Source

To Power

Source

EPS 2EPS 1

EPS 2



In this configuration, EPS 2 of the Power Supply Shelf can be connected to

either EPS 1 or EPS 2 of either switch.

To PowerSource

To Power Source

To PowerSource

To PowerSource

To PowerSource

EPS 1

5412zl 8212zl



13-31

Figure 13-22.Connecting the EPS to two switches, one 5412zl and one 8212zl

EPS CablesEPS 1

EPS 2 EPS 2



14

Infrastructure Requirements

Air conditioning

Power supplies create a great amount of heat. Ensure you have enough cool

air to maintain an ambient temperature between 0°C to 50°C (32°F to 131°F)

around the switch devices inside the rack or equipment closet. If you are

installing any of the X2 transceivers the operatingambient temperature should

not exceed 40°

C (104°

F). See transceiver specifications in the installationguide for your switch.

A typical 48 port PoE switch BTU rating is approximately 920. Adding in a

maximum number of PoE powered devices (PD) connected to the switch at

15 4 tt th BTU ti j t i t l 2280 Alth h t i ll



14-1

15.4 watts, the BTU rating can jump to approximately 2280. Although typically

the PDs are outside of the data closet area, the total BTU needs of the air

conditioning system (for the whole building for example) needs to take this

additional cooling requirement into consideration.

When adding a Redundant Power Supply (RPS), the BTU rating can grow to

approximately 3500 and more. This example only takes into consideration one

PoEswitchwith redundantpower. As more switches,PoE PDs, andredundant

power supplies are added the BTU rating increases requiring more cooling.

Ensure wiringclosets andotherareas where PoEswitches andpowersupplies

are congregated have proper cooling. Even though most PDs do not draw the

maximum 15.4 watts, it is still good to plan for the maximum.

Power requirements

Ensure you have enough power supplied to the area where the switches willbe mounted. Some units have dual power supplies in them that you may want

to consider connecting each power supply to different circuits in order to

provide redundant power to the switch.

Infrastructure Requirements

Physical Space

Many switches come with dual power ratings (110 or 220 volt operation).

Therefore planning for power requirements is critical. If a wiring closet

currently only supplies 110 volts it must be determined whether or not to

operate the switch at 110 volts or 220 volts.

You not only need to plan for voltage requirements but amperage

requirements. PoE switches can be double or triple the amperage drawcompared to a non-PoE switch.

Physical Space

These devices may be deeper (longer) than other equipment in your networkdue to the added PoE power supplies. Also if RPS units have been added to

the rack or wiring closet, ensure enough space has been planned for all

devices.



14-2

Space around the switchand aroundthe other units must be available to allow:

■ access by service personnel

■

space for power cords and other wiring■ cool air circulation

Racks

PoE switch devices and RPS units may be heavier than other non-PoE switch

devices in your network. Therefore you should rack heavy devices at the

bottom of the rack, followed by lighter devices as you move up the rack. This

will help to keep the rack from tipping over.

Secure racks as specified by your rack’s manufacturer. Ensure your racks are

compliant with any earthquake structural rules and regulations.

Glossary

Glossary

active PoE port - PoE-enabled port connected to a PD and currently

delivering power.

priority class - Refers to the type of power prioritization where the switch

uses Low (the default), High, and Critical priority assignments to determine

which groups of ports will receive power. Note that power priority rules apply

only if PoE provisioning on the switch becomes oversubscribed.

EPS - External Power Supply

MPS - Maintenance Power Signature; the signal a PD sends to the switch to

indicate that the PD is connected and requires power.

Oversubscribed - The state where there are more PDs requesting PoE power

than can be accommodated.



Gloss-1

than can be accommodated.

PD - Powered Device. This is an IEEE 802.3af-compliant device that receives

its power through a direct connection to a 10/100Base-TX PoE RJ-45 port on

the switch. Examples of PDs include Voice-over-IP (VoIP) telephones, wire-less access points, and remote video cameras.

port-number priority - Refers to the type of power prioritization where,

within a priority class, the switch assigns the highest priority to the lowest-

numbered port, the second-highest priority to the second lowest-numbered

port, and so-on. Note that power priority rules apply only if PoE provisioning

on the switch becomes oversubscribed.

PoE - Power-Over-Ethernet; the method by which PDs receive power from a

PoE module (operates according to the IEEE 802.3af standard). Some pre-

standard PoE devices are also supported.

PoE+ - Power-over-Ethernet Plus; the method by which PDs receive power

according to the 802.3at standard. It is backward compatible with devices

using the 803.3af standard.

PSE - Power-Sourcing Equipment. A PSE, such as the Series 3500yl Switches,

or the modules in a E5400zl chassis, provides power to IEEE 802.3af or

802.3at- compliant PDs directly connected to 10/100/1000Base-T PoE RJ-45

ports on the switch. The Series 3500yl Switches and the Switch zl PoE Modules

are endpoint PSEs.

RPS - Redundant Power Supply



A

Planning Considerations

This appendix is divided into five sections:

■ General Considerations

■ Specific Considerations for the 2910al-PoE Switches

■ Specific Considerations for the 3500-PoE Switches

■ Specific Considerations for the 3500yl-PWR Switches

■ Specific Considerations for the E5400zl/E8200zl Switches

These lists are in no way exhaustive, however answers to these and other

questions will help define how many and what types of switches are needed

to implement a PoE configuration.

General Considerations



A-1

General Considerations

The following is an example list of considerations during the planning phaseno matter which series of switches are being installed:

■ How many devices need PoE power?

■ What devices will need PoE power?

■ How much power will each device require, in watts?

■ What is the total of all their wattages?

■ Will the devices be connected to a 2910al, 3500yl, E5400zl or to a E8200zl

switch?■ How many ports are needed?

■ How many ports are available?

■ Are the devices to be powered by PoE power supported?

• The HP Switches covered in this manual support any products that

meet the IEEE 802.3at standard and the IEEE 802.3af PoE standard

and some pre-standard PoE devices. For a current list, see the FAQ

page for your switch, which can be found atwww.hp.com/networking/support.

■ How many PDs per Switch?

• The number of PDs supported per switch depends on the power

allocation and how much power each PD uses and how much power

is left. The examples in the following section show the power

consumption in some typical configurations.


Specific Considerations for the 2910al-PoE Switches

Specific Considerations for the 2910al-PoE Switches

The following is an example list of considerations during the planning phase

specific to the 2910al Switches:

■ What if power is lost to the switch?

• Power for the switch to operate (system power)

• Power for PoE devices

■ Which devices to plug into which ports and with what priorities?

• Port prioritization

• Port priority class• Total watts available (382)

■ Which bank of 24 ports will be used?

■ Will load balancing be used?

■ Will any mini GBICs be used and in what ports?





A-2

■ Will any mini-GBICs be used and in what ports?

■ Should the 630 RPS/EPS be plugged into a different power source than

the switch it is going to backup?


Specific Considerations for the 3500-PoE Switches

SpecificConsiderationsforthe3500-PoESwitches


specific to the 3500-PoE Switches:






• Port priority class• Reserve watts

• Total watts available (398)





A-3



■

Should the 620 RPS/EPS be plugged into a different power source thanthe switch it is going to back up.

Planning ConsiderationsSpecific Considerations for the 3500yl-PWR Switches

Specific Considerations for the 3500yl-PWR Switches


specific to the 3500yl Switches:












A-4



■

Should the 620 RPS/EPS be plugged into a different power source thanthe switch it is going to back up.

Planning ConsiderationsSpecific Considerations for the 3500yl-PoE+ Switches

Specific Considerations for the 3500yl-PoE+ Switches


specific to the 3500yl Switches:












A-5

g


■ Should the 630 RPS/EPS be plugged into a different power source than

the switch it is going to back up.

Planning ConsiderationsSpecific Considerations for the E5400zl/E8200zl Switches

Specific Considerations for the E5400zl/ E8200zl Switches


specific to the E5400zl/E8200zl Switches:




■ Which devices to plug into which ports, modules, andwith what priorities?

• Slot prioritization

• Port prioritization• Port priority class

• Reserve watts

• Total watts available

■ Which modules will be used for PoE and which will not?



A-6


Numerics

1500 W PoE+ zl power supply … 13-282910bl specific consideration … A-2

3500 switch

planning config … 10-1

3500-PoE specific consideration … A-3

3500yl specific consideration … A-4

3500yl-PoE+ specific consideration … A-5

5300 xl PoE module … 2-25

5400zl/8200zl switches

planning and implementation … 13-1

C

cable

data pairs … 1-4

power through 1-4

HP Switch v2 zl 20 port Gig-T PoE+ Module … 1-27

HP Switch v2 zl 20 port PoE+ & 2-port SFP+

Module … 1-28HP Switch v2 zl 24 port Gig PoE+ Module … 1-27

HP Switch v2 zl 24-port mini-GBIC SFP

Module … 1-28

I

internal power supply … 1-22

introduction … 1-1

J

J9306A power supply … 2-3, 13-28

L

Index



Index – 1

power through … 1-4

spare pairs … 1-4

class method priority … 2-4

E

E5400/E8200zl PoE

enabling, disabling redundancy … 1-24

E5400zl/E8200zl specific consideration … A-6

E8206zl switch, description … 1-20

E8212zl switch, description … 1-21

EPS power … 1-9example configurations … 3-1, 4-1, 5-1, 6-1, 7-1, 9-1,

10-1, 11-1, 12-1, 13-2

E5412zl with J9306A … 13-29

external power supplies … 2-8

H

HP switch

E2620-24-PoE+ … 1-10E2620-24-PPoE+ … 1-10, 7-2–7-3

E2620-48-PoE+ … 1-10

E5406zl … 1-19

E5412zl … 1-19

E8206zl … 1-20

E8212zl … 1-21

L

line loss

power loss … 2-6LLDP for PoE allocation … 2-15–2-16, 2-18–2-21

M

maximum PoE power … 2-17

maximumpower allocations … 2-14–2-15, 2-17–2-18,

2-20–2-23

minimum watts … 2-7

module24-port PoE/PoE+ … 1-26

24-port zl 10/100 PoE/PoE+ … 1-27– 1-28

xl PoE for 5300 … 2-25

zl 20-port PoE/PoE+ … 1-26

O

operating rules … 2-1

overview … 1-1

P

PDs

power classification, usage … 2-6

planning … 3-1, 4-1, 5-1, 6-1, 7-1, 8-1, 9-1, 10-1, 11-1,

12-1, 13-1

PoE

configuration … 10-2, 11-2, 11-7, 12-3

E5400zl/E8200zl config … 13-2

general considerations … A-1

planning … 3-1, 4-1, 5-1, 6-1, 7-1, 8-1, 9-1, 10-1,

11-1, 12-1, 13-1 port-number priority … 2-4

power requirements … 2-10

priority class … 2-5

product capabilities … 1-5

using LLDP … 2-18

PoE allocation using LLDP … 2-15–2-16, 2-18–2-21

PoE power

3500 maximum power … 2-173500 requirements … 2-17

external for 3500-48-PoE … 10-6

PoE power supplies … 1-23

PoE redundancy, configuring … 1-24

PoE/PoE+ 24-port 10/100 module … 1-27–1-28

PoE/PoE+ power supply … 1-23

power configurations

PoE for E5406zl/E8206zl … 13-3

PoE/PoE+ for E5406zl/E8206zl … 13-4

system, E5406zl/E8206zl … 13-3

system, E5406zl/E8206zl with J9306A … 13-3

power loss … 2-6

power over ethernet … 1-1

power redundancyE5400zl/E8200zl switches … 1-21

power requirements … 2-7

power sourcing equipment … 1-4

power supplies

1500 W PoE+ zl … 13-28

3500 redundant … 10-6

J8712A … 1-22

J8713A … 1-22 J9306A … 1-22, 13-28

J9306A, description … 2-3

J9306A, with E8206zl … 13-16

mixing … 13-28

PoE … 1-23

PoE/PoE+ … 1-22–1-23



Index – 2

PoE/PoE+ zl 20-port module … 1-26

PoE/PoE+ zl 24-port module … 1-26

PoE+, configuration … 7-2–7-4, 9-2, 9-4 port priority … 2-4

power

12 volt … 1-21

50 volt PoE … 1-21

54 volt PoE+ … 1-21

allocating by class … 2-4

allocating by user-defined power level … 2-4

config for E5406zl/E8206zl … 13-4

config for E5412zl/E8212zl … 13-5

config for PoE only E5412zl/E8212zl … 13-6

config for PoE/PoE+ E5412zl/E8212zl … 13-8

config PoE/PoE+ for E8206zl … 13-16

configuring PoE/PoE+ with CLI … 2-4

configuring port priority … 2-4

configuring threshold … 2-5

maximum for E5412zl/E8212zl … 13-6

provisioning … 2-8system E5412zl/E8212zl … 13-6

power classification, classes … 2-6

why not to mix … 1-22

power supply shelf

with E5406zl/E8206zl … 13-14with E5412zl/E8212zl configs … 13-30

powered devices … 1-4, 2-7

pre-standard PoE devices … 1-8, 1-10, 1-12, 1-14–

1-16, 1-18

disabling … 1-10, 1-12, 1-14–1-16, 1-18

priority, class method … 2-4

priority, port … 2-4

ProCurve switch

2910al-24G-PoE+ … 7-4, 9-2, 9-4

2910al-24-PWR … 1-11

2910al-48-PWR … 1-11

2910bl-48-PWR … 1-9

3500-24-PoE … 10-2

3500-48-PoE … 10-4

3500yl-24G-PoE+ … 1-16

3500yl-24G-PWR … 1-14–1-15, 11-2, 11-7, 12-3

3500yl-48G-PoE+ … 1-163500yl-48G-PWR … 1-14–1-15

ProCurve Switch xl PoE Module … 1-25

ProCurve Switch zl 20 port PoE Module … 1-26

ProCurve Switch zl 20 port PoE/PoE+ Module … 1-26

ProCurve Switch zl 24 port 10/100 PoE/PoE+

Module … 1-27

ProCurve Switch zl 24 port PoE/PoE+ Module … 1-26

provisioning power, switch … 2-8

R

redundancy … 1-24

conceptual example … 13-2

full … 13-2N+1 … 13-2

with 5406zl/8206zl … 13-2

S

supported products … A-1

switch E3800

E3800-24G-2XG-PoE+ switch … 1-17–1-18

E3800-48G-4XG-PoE+ switch … 1-17–1-18

switch PoE

operation … 2-2

switch priority class … 2-7

switches

2626-PWR, 2650-PWR, 2600-8-PWR, Series 2600-

PWR Switches 1 7 1 8



Index – 3

PWR Switches … 1-7–1-8

system power

5412zl/8212zl … 13-5E5412zl/E8212zl … 13-6

T

threshold

configuing global … 2-5

configuring per-slot … 2-5







Technology for better business outcomes

To learn more, visit www.hp.com/networking

© Copyright 2011 Hewlett-Packard Development Company, L.P. The informationcontained herein is subject to change without notice. The only warranties for HP productsand services are set forth in the express warranty statements accompanying such products

and services. Nothing herein should be construed as constituting an additional warranty.HP will not be liable for technical or editorial errors or omissions contained herein.

August 2011

Manual Part Number5991-8574

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