3Com 3CBLUG24A Manuale utente

3Com Baseline Switch 2816(3CBLUG16A)

3Com Baseline Switch 2824(3CBLUG24A)

User Guide

Manual Version: 6PW103

www.3com.com

3Com Corporation

350 Campus Drive,

Marlborough, MA, USA

01752 3064

documentation may be reproduced in any form or by any means or used to make any

derivative work (such as translation, transformation, or adaptation) without written

permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make

changes in content from time to time without obligation on the part of 3Com

Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition

of any kind, either implied or expressed, including, but not limited to, the implied

warranties, terms or conditions of merchantability, satisfactory quality, and fitness for

a particular purpose. 3Com may make improvements or changes in the product(s)

and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is

furnished under a license agreement included with the product as a separate

document, in the hard copy documentation, or on the removable media in a directory

file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy,

please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the

software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed

solely at private expense. Software is delivered as “Commercial Computer Software”

as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined

in FAR 2.101(a) and as such is provided with only such rights as are provided in

3Com’s standard commercial license for the Software. Technical data is provided

with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR

52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface

any portion of any legend provided on any licensed program or documentation

contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United

States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation.

All other company and product names may be trademarks of the respective

companies with which they are associated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations.

To uphold our policy, we are committed to:

Establishing environmental performance standards that comply with national

legislation and regulations.

Conserving energy, materials and natural resources in all operations.

Reducing the waste generated by all operations. Ensuring that all waste conforms to

recognized environmental standards. Maximizing the recyclable and reusable

content of all products.

Ensuring that all products can be recycled, reused and disposed of safely.

Ensuring that all products are labelled according to recognized environmental

standards.

Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all

end-of-life electronic components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable,

managed forests; it is fully biodegradable and recyclable, and is completely

chlorine-free. The varnish is environmentally-friendly, and the inks are

vegetable-based with a low heavy-metal content.

About This Manual

Organization

3Com Switch 2816/2824 User Guide is organized as follows:

Chapter Contents

1 Product Overview Introduces the hardware features,

LEDs, and network design of the switch.

2 Installing the Switch Introduces how to install the switch.

3 Problem Solving Introduces how to solve some common

problems of the switch.

Appendix A - Safety

Information Introduces the safety information before

installing the Switch.

Appendix B - Regulatory

Information Introduces the regulatory information for

your switch.

Appendix C - Collection List of

the Hazardous Substances Lists the collection of the hazardous

substances.

Conventions

Convention Description

Means reader be extremely careful. Improper

operation may cause bodily injury.

Means reader be careful. Improper operation may

cause data loss or damage to equipment.

Means a complementary description.

Obtaining Documentation

You can access the most up-to-date 3Com product documentation on

the World Wide Web at this URL: http://www.3com.com.

Table of Contents

1 Product Overview ....................................................................................1

Introduction............................................................................................1

Summary of Hardware Features ........................................................... 1

Physical Features..................................................................................4

Front Panel ....................................................................................4

Rear Panel..................................................................................... 4

Description of LEDs ..............................................................................4

Technical Specifications........................................................................5

Network Design.....................................................................................7

2 Installing the Switch ................................................................................9

Package Contents...............................................................................10

Positioning the Switch .........................................................................10

Rack Mounting ....................................................................................12

Powering On........................................................................................13

3 Problem Solving ....................................................................................15

Appendix A - Safety Information.............................................................17

Important Safety Information...............................................................17

L’information de Sécurité Importante ..................................................19

Wichtige Sicherheitsinformationen......................................................20

Información de Seguridad Importante.................................................22

Importanti Informazioni di Sicurezza...................................................24

Ważne Informacje o Zabezpieczeniach ..............................................26

Informações de segurança importantes..............................................28

Appendix B - Regulatory Information.....................................................30

FCC Statement ............................................................................30

Information to the User ................................................................30

CE Statement (Europe) ...............................................................31

ICES Statement...........................................................................31

VCCI Statement...........................................................................32

CCC Statement............................................................................32

Appendix C - Collection List of the Hazardous Substances................33

1 Product Overview

Introduction

The 3Com Baseline Switch 2824 and the 3Com Baseline Switch 2816

are versatile, easy-to-use, unmanaged gigabit switches. It is ideal for

users who want the high-speed performance of 10/100/1000 switching

but do not need sophisticated management functions. The Switch is

shipped ready for use, and operational straight out of the box. No

configuration is necessary. Your 3Com Baseline Switch incorporates

the latest in Green technology to yield more than 20% power savings

over the previous generation technology.

Figure 1-1 Appearance

Summary of Hardware Features

Table 1-1 summarizes the hardware features supported by the

Switch.

Table 1-1 Hardware Features

Feature Description

Auto-negotiation Supported on all ports.

Forwarding Modes Store and Forward.

Mac Address Table 8K

Port throughput z2816: 32Gbps

z2824: 48Gbps

Auto MDI/MDIX Supported on all ports.

Traffic Prioritization

The Switch offers priority queuing, which

means all packets that are received are

examined to see if they have been priority

encoded. When a packet is received, the

Switch will read the priority level and

determine the appropriate queue to

forward the packet based on the priority

level. High priority data is forwarded

through the Switch without being delayed

by lower priority data.

This feature can be useful, for example,

during excessive loads when one type of

traffic may require priority over another.

The Switch is configured to comply with

802.1 p, VLAN tagged frames.

Notes:

The traffic prioritization feature supported

by the Switch is compatible with the

relevant sections of the IEEE 802.1 D

standard (incorporating IEEE 802.1 p).

Feature Description

Ethernet Ports

The Switch has 24/16 10/100/1000 Mbps

auto-negotiating ports. Each port

automatically negotiates with the attached

device to determine the correct speed and

duplex mode of operation. Once

negotiated, the port will operate in one of

the following modes:

z10BASE-T half duplex

z10BASE-T full duplex

z100BASE-TX half duplex

z100BASE-TX full duplex

z1000BASE-T full duplex

WARNING:

RJ-45 ports. These are shielded RJ-45

data sockets. They cannot be used as

standard traditional telephone sockets, or

to connect the unit to a traditional PBX or

public telephone network. Only connect

RJ-45 data connectors, network telephony

systems, or network telephones to these

sockets. Either shielded or unshielded

data cables with shielded or unshielded

jacks can be connected to these data

sockets.

Mounting 19-inch rack or standalone mounting.

Fanless design Silent operation whether used in a rack or

desktop situation.

Green Technology

When no connection exists or a short

network cable is used, power consumption

can be reduced automatically to save

energy.

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