HP ProCurve 2600-8-PWR, ProCurve 2520G, ProCurve 2610-48-PWR, ProCurve 2610-24-PWR, ProCurve 2610-24/12PWR Planning And Implementation Manual

...

Power over Ethernet

HP ProCurve Power over Ethernet (PoE/PoE+)

Planning and Implementation Guide

Power over Ethernet (PoE/PoE+)

Planning and Implementation Guide

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 HewlettPackard.

Publication Number

5991-8574 February 2010

Applicable Products

HP ProCurve Switch 2910al-24G-PoE+ (J9146A) HP ProCurve Switch2910al-48G-PoE+ (J9148A) HP ProCurve Switch 5406zl (J8697A) HP ProCurve Switch 5406zl-48G (J8699A) HP ProCurve Switch 5412zl (J8698A) HP ProCurve Switch 5412zl-96G (J8700A) HP ProCurve Switch 3500-24-PoE (J9471A) HP ProCurve Switch 3500-48-PoE (J9473A) 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 8206zl (J9475A) HP ProCurve Switch 8212zl (J8715A) HP ProCurve Switch 2626-PWR (J8164A) HP ProCurve Switch 2650-PWR (J8165A) HP ProCurve Switch 2600-8-PWR with Gigabit

Uplink 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 HP ProCurve 24-Port 10/100 PoE+ zl Module (J9478A) HP ProCurve 600 Redundant and

External Power Supply (J8168A) HP ProCurve 610 External Power Supply (J8169A) HP ProCurve 620 Redundant and External

Power Supply HP ProCurve 630 Redundant and/or External

Power Supply

(J8762A)

(J9308A)

(J8696A)

(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)

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.

War ra nt y

See the Customer Support/Warranty booklet included with the product.

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.

Contents

1 Introduction

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

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

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

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

HP ProCurve 2520G Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

HP ProCurve 2600 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

HP ProCurve 2610 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Power Redundancy for the 2600 and 2610 Switches . . . . . . . . . . 1-10

HP ProCurve 2910al Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

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

HP ProCurve 3500-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

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

HP ProCurve 3500yl-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Power Redundancy for the 3500yl PWR Switches . . . . . . . . . . . . 1-15

HP ProCurve 3500yl-PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

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

HP ProCurve 5400zl/8200zl Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Power Redundancy for the5400zl/8200zl Switches . . . . . . . . . . . 1-19

PoE/PoE+ Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Why Mixing Power Supplies is NOT Supported . . . . . . . . . . . . . . 1-20

PoE Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

PoE/PoE+ Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Configuring PoE Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

HP ProCurve PoE and PoE+ Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

HP ProCurve Switch xl PoE Module . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

ProCurve Switch zl 24 port Gig-T PoE Module (J8702A) . . . . . . . . . . 1-23

ProCurve Switch zl 20 port Gig-T + 4 port mGBIC

Module (J8705A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

iii

HP ProCurve 24-Port 10/100/1000 PoE+ zl Module (J9307A) . . . . . . 1-24

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

zl Module (J9308A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

HP ProCurve 24-Port 10/100 PoE+ zl Module (J9478A) . . . . . . . . . . . 1-25

Quick Reference Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

PoE Power Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Line Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

PD Power Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

PD Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Provisioning Power for PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

HP ProCurve 2520-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

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

HP ProCurve 2600-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

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

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

HP ProCurve 2610-PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

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

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

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

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

HP ProCurve 3500-PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

PoE Allocation Using LLDP Information . . . . . . . . . . . . . . . . . . . 2-17

HP ProCurve 3500yl PWR Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

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

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

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

HP ProCurve 3500yl PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

PoE/PoE+ Allocation Using LLDP Information . . . . . . . . . . . . . . 2-19

HP ProCurve 5400zl/8200zl Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Maximum PoE Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

PoE Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

HP ProCurve Switch xl PoE Module for the 5300xl Switch . . . . . . . 2-23

3 Planning and Implementation for the

2520 and 2520G Switches

Planning the PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

HP 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 . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

ProCurve 2626-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

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

5 Planning and Implementation for the

2610-PWR Switches

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

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

ProCurve 2610-24-PWR Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

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

6 Planning and Implementation for the Switch xl PoE

module

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

ProCurve Switch PoE xl Module Configurations with

a 600 RPS/EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

ProCurve Switch PoE xl Module Configurations with

a 610 EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

7 Planning and Implementation for the

2910al PoE+ Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

ProCurve 2910al-24G-PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . 7-2

ProCurve 2910al-48G-PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . 7-4

8 Planning and Implementation for the 3500 Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

HP ProCurve 3500-24-PoE Switch Configuration . . . . . . . . . . . . . . . . . 8-2

HP ProCurve 3500-48-PoE Switch Configuration . . . . . . . . . . . . . . . . . 8-4

9 Planning and Implementation for the 3500yl Switches

Planning Your PoE or PoE+ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

HP ProCurve 3500yl-24G-PWR Configuration . . . . . . . . . . . . . . . . . . . . 9-2

HP ProCurve 3500yl-48G-PWR Configuration . . . . . . . . . . . . . . . . . . . . 9-4

HP ProCurve 3500yl-24G-PoE+ Configuration . . . . . . . . . . . . . . . . . . . 9-7

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

10 Planning and Implementation for the

5400zl/8200zl Switches

Planning Your PoE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Power Configuration for HP ProCurve 5406zl/8206zl

PoE Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Power Configuration for HP ProCurve 5406zl/8206zl

PoE/PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

Power Configuration for HP ProCurve 5412zl/8212zl

PoE Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

Power Configuration for HP ProCurve 5412zl/8212zl

PoE/PoE+ Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

HP ProCurve 5406zl Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

ProCurve 5406zl and 8206zl Configurations using the

Power Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

Example Configuration for HP ProCurve 5406zl With

One PoE/PoE+ Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15

Example Configuration for HP ProCurve 8206zl With

One PoE/PoE+ Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16

Example Configuration for HP ProCurve 8206zl with

Two PoE/PoE+ Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17

HP ProCurve 8206zl Configurations using the

Power Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17

HP ProCurve 5412zl/8212zl Configurations . . . . . . . . . . . . . . . . . . . . 10-18

Standard J8712A Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 10-18

Standard J8713A Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

Mixed J8712A and J8713A Configurations . . . . . . . . . . . . . . . . . 10-25

Using the HP ProCurve 1500W PoE+ zl Power

Supply (J9306A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28

ProCurve 5412zl/8212zl Configurations using the Power

Supply Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30

11 Infrastructure Requirements

Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Physical Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

vii

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 5400zl/8200zl Switches . . . . . . . . . . . . . . A-6

Index

viii

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

■ How PoE supplies power over twisted pair cable.

■ The capabilities of the devices used to provide PoE.

Overview

environment.

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. Just as telephones are powered from the telephone exchange through the same twisted pair that carries the voice, we can now do the same thing with Ethernet devices.

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 typical application: a system for a multi-level car parking 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.

1-1

Introduction

Overview

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 enhances PoE 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 all the same functionality, and more. The table below shows the capabilities of

802.3af versus 802.3at.

Classification Discovery

Power to PD Physical Logical

<25.5W 802.3at 802.3at

<12.95W 802.3af

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 may note that ProCurve PoE+ devices use a 54 volt power supply.

802.3at

Note The detection and classification functions ensure that if two PoE sources are

attached together, power will not be improperly applied.

1-2

Introduction

5406zl Switch

3500yl-48G-PWR

3500yl-24G-PWR

Wireless Access Points

Cameras

Phones

Mitel 3300 IP PBX

Wireless Access Points

620 RPS/EPS

Power Supply Shelf

Overview

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 full control 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

1-3

Introduction

Power 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 the appliances.

■ 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 ProCurve Networking 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.

1-4

PoE Capabilities of the Products

Introduction

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 comply with the specification. 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.

Introduction

PoE Capabilities of the Products

These switches are designed to be used primarily in wiring closets directly connected to computers, printers, and servers to provide dedicated bandwidth to those devices. Additionally, they support the PoE standard IEEE

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 ProCurve 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.

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Introduction

PoE Capabilities of the Products

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 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 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.

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PoE Capabilities of the Products

Introduction

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-TX RJ-45 ports including four dual-personality Gigabit Uplink ports.

These switches also support some pre-standard PoE devices. For a list of these devices, see the FAQs for your switch model. This feature must be enabled; it is not a default feature.

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.

1-7

Introduction

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-Integrated 10/100-TX Ports (1 - 8)  (Ports are HP Auto-MDIX)

ProCurve

Switch 2600-PWR

J8762A

Spd mode: off = 10 Mbps, flash = 100 Mbps, on = 1000 Mbps

Link

Mode

LED Mode

Spd

Act

FDx

Test

EPS

Fan

Link

Mode

Link

Mode

Link

Mode

PoE

Use only one (T or M) for Port 9

RPS

PoE Capabilities of the Products

HP ProCurve 2600 Switches

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

The 2600-8-PWR with Gigabit Uplink (J8762A), has 8 Integrated PoE autosensing 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.

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.

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PoE Capabilities of the Products

Introduction

HP ProCurve 2610 Switches

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

The 2610-24/12PWR (J9086A), has 12 Integrated PoE auto-sensing 10/100BaseTX RJ-45 ports with four Gigabit Uplink ports.

For more information, refer to the Management and Configuration Guide on the ProCurve Web site. To display the list of downloadable manuals, click on the following link: www.hp.com/go/procurve/manuals.

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

1-9

Introduction

PoE Capabilities of the Products

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 down which will bring down all switch and PoE connections. Therefore it is important to provide a redundant power supply for both the 12V and 50V circuits. Thus when you connect EPS from a 600 RPS/EPS 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 and 2610-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.

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PoE Capabilities of the Products

Introduction

Power

Fault

Locator

Console

LED

Mode

Clear

Reset

PoE+ Integrated 10/100/1000Base-T Ports (1 - 48T)  Ports are Auto-MDIX

Test

Tmp

Status

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

Use only one (T or S) for each Port

PoE

Fan

45S

47S

46S 48S

Spd mode: off=10 Mbps, 2 flash=100 Mbps, on=1 Gbps, 3 flash=10 Gbps

FDx

Spd

PoE

Act

Link

Mode

Link

Mode

Link

Mode

47T

45T

46T

48T

Link

Mode

Status of the Back

Mdl RPS

EPS

ProCurve Switch

2910bl-48G-PoE

J9148A

Link Mode

2220

2321

1917

1513

Link

Mode

Link

Mode

3432

3533

2725

Link

Mode

Link

Mode

Usr

PoE+

Power

Fault

Locator

Console

Spd mode: off = 10 Mbps

2 flash = 100 Mbps

on = 1 Gbps

3 flash = 10 Gbps

LED Mode

Clear

Reset

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)

Use only one (T or S) for each Port

PoE

Fan

21S

23S

22S 24S

FDx

Spd

PoE

Act

Link

Mode

23T

21T

22T

24T

Link

Mode

Status of the Back

Mdl

RPS

EPS

ProCurve Switch

2910bl-24G-PoE

J9146A

Link Mode

119

Link

Mode

Link

Mode

Usr

Auxiliary Port

PoE+

Introduction

HP ProCurve 2910al Switches

The HP ProCurve Switch 2910al-48G-PoE+ (J9148A), has 44 Integrated PoE+ auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

The HP ProCurve Switch 2910al-24G-PoE+ (J9146A), has 20 Integrated PoE+ auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

These switches also support some pre-standard PoE devices. While HP ProCurve 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 the FAQs for your switch model, www.hp.com/go/procurve/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

For more information, refer to the Management and Configuration Guide which is on the ProCurve Web site. To display the list of downloadable manuals, click on the following link: www.hp.com/go/procurve/manuals.

(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 the mini-GBIC ports are used the corresponding RJ-45 port will not be supplied with PoE/PoE+ power.

1-11

Introduction

PoE Capabilities of the Products

Power Redundancy for the 2910al Switches

The internal power supply in these switches provides both the 12V (RPS) and 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 fails, it will shut down the entire switch. Therefore it is important to provide a redundant power supply for both the 12V and 54V circuits. It is recommended that both EPS and RPS be connected to provide full redundancy.

HP ProCurve 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 ProCurve 620 RPS/EPS or HP ProCurve 630 RPS/EPS. 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.

1-12

PoE Capabilities of the Products

Introduction

HP ProCurve 3500-PoE Switches

The HP ProCurve Switch 3500-48G-PoE (J9473A), has 44 Integrated PoE autosensing 10/100 Base-T RJ-45 ports and four ports of Gigabit dual-personality Uplink ports, either RJ-45 or SFP.

The HP ProCurve Switch 3500-24G-PoE (J9471A), has 20 Integrated PoE autosensing 10/100 Base-T RJ-45 ports with four ports of Gigabit dual-personality Uplink ports, either RJ-45 or SFP.

These switches also support some pre-standard PoE devices. For a list of these devices, see the FAQs for your switch model. This feature is the default and you must disable it if you do not want to use it. For example:

ProCurve(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 Base-T RJ-45 or mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of the mini-GBIC ports are used the corresponding RJ-45 port will not be supplied with PoE power.

1-13

Introduction

PoE Capabilities of the Products

Power Redundancy for the 3500 Switches

The internal power supply in these switches provides both the 12V (RPS) and 50V (EPS) circuits. If the 50V portion of the power supply fails, it will only shut down 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 power supply for both the 12V and 50V circuits. It is recommended that both EPS and RPS be connected to provide full redundancy.

The HP ProCurve 3500-PoE Switches can be connected to a 620 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 two switches are connected to 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, you must connect an HP ProCurve 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 auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

The HP ProCurve Switch 3500yl-24G-PWR (J8692A), has 20 Integrated PoE auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

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

1-14

PoE Capabilities of the Products

Introduction

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

Introduction

Power Redundancy for the 3500yl PWR Switches

The 3500yl-PWR Switches can be connected to a 620 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 two switches are connected to 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 auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

1-15

Introduction

PoE Capabilities of the Products

The HP ProCurve Switch 3500yl-24G-PoE+ (J9310A), has 20 Integrated PoE auto-sensing 10/100/1000Base-T RJ-45 ports with four dual-personality Gigabit Uplink ports.

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

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

Power Redundancy for the 3500yl PoE+ Switches

The 3500yl-PoE+ Switches can be connected to an HP ProCurve 630 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. The HP ProCurve 630 RPS/EPS unit can provide all the power necessary to keep only one switch running.

The "maximum PoE+" power for 48 ports equals (48 ports x 30 watts = 1440 watts). The 398 watts of internal power plus the 382 watts from the EPS equals 780 watts. This will only support "maximum PoE+" power on 24 of the 48 ports. The internal power supply can only support "maximum PoE+" on 12 of 48 ports (or 12 of 24 ports on 24 port PoE+ switch).

1-16

PoE Capabilities of the Products

Introduction

HP ProCurve 5400zl/8200zl Switches

The HP ProCurve Switch 5406zl 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 ProCurve Switch 5412zl 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.

1-17

Introduction

PoE Capabilities of the Products

The HP ProCurve Switch 8206zl 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.

1-18

PoE Capabilities of the Products

Introduction

The HP ProCurve Switch 8212zl 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.

Note 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/PoE+.

Power Redundancy for the5400zl/8200zl Switches

There are three types of power supplied by the Series 5400zl/8200zl switch power supplies:

■ 12V power or system power

■ 50V power for PoE power

■ 54V power for PoE/PoE+ power

1-19

Introduction

PoE Capabilities of the Products

The 12V system power is used to operate the internal components of the switch. The 50V PoE or 54V PoE/PoE+ power is used to 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 5406zl/8206zl chassis can hold two internal power supplies and the 5412zl/8212zl chassis can hold four internal power supplies.

PoE/PoE+ Power Supplies

Why Mixing Power Supplies is NOT Supported

Using a combination of zl PoE power supplies J8712A and J8713A and 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 install a J8712A or J8713A with a J9306A power supply, they do voltage sharing. 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 ProCurve 5406zl 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 ProCurve 8212zl 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.

1-20

+ 138 hidden pages

HP ProCurve 2600-8-PWR, ProCurve 2520G, ProCurve 2610-48-PWR, ProCurve 2610-24-PWR, ProCurve 2610-24/12PWR Planning And Implementation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Planning and Implementation Guide

Introduction

Overview

Power Through the Cable

PoE Capabilities of the Products

HP ProCurve 2520 Switches

HP ProCurve 2520G Switches

HP ProCurve 2600 Switches

HP ProCurve 2610 Switches

Power Redundancy for the 2600 and 2610 Switches

HP ProCurve 2910al Switches

Power Redundancy for the 2910al Switches

HP ProCurve 3500-PoE Switches

Power Redundancy for the 3500 Switches

HP ProCurve 3500yl-PWR Switches

Power Redundancy for the 3500yl PWR Switches

HP ProCurve 3500yl-PoE+ Switches

Power Redundancy for the 3500yl PoE+ Switches

HP ProCurve 5400zl/8200zl Switches

Power Redundancy for the5400zl/8200zl Switches

PoE/PoE+ Power Supplies

Why Mixing Power Supplies is NOT Supported