3Com 9400 User Manual

CoreBuilder

9400

Getting Started Guide

http://www.3com.com/

Part No. 10013143 Published August 1999

3Com Corporation

■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145

Copyright © 1999, 3Com Corporation. All rights reserved. No part of this 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 Cor poration provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability 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.

UNITED STATES GOVERNMENT LEGENDS

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.

EMISSIONS COMPLIANCE STATEMENTS FOR CLASS A PRODUCTS

United States — Federal Communications Commission Notice

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide responsible protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his or her own expense.

Canada — Emissions Requirements

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Japan — VCCI Class A Compliance

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

EMC DIRECTIVE COMPLIANCE

This equipment was tested and found to conform to the Council Directive 89/336/EEC for electromagnetic compatibility. Conformity with this Directive is based upon compliance with the following harmonized standards:

EN 55022 Limits and Methods of Measurement of Radio Interference

EN 50082-1 Electromagnetic Compatibility Generic Immunity Standard: Residential, Commercial, and Light Industry

Warn ing:

product may cause radio interference, in which case you may be required to take adequate measures.

LOW VOLTAGE DIRECTIVE COMPLIANCE

This equipment was tested and found to conform to the Council Directive 72/23/EEC for safety of electrical equipment. Conformity with this Directive is based upon compliance with the following harmonized standard:

EN 60950 Safety of Information Technology Equipment

UK GENERAL APPROVAL STATEMENT

This equipment is manufactured to the international Safety Standard EN60950 and is approved in the UK under the General Approval Number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.

AUSTRALIAN EMC FRAMEWORKS COMPLIANCE

This product conforms to the EMC Frameworks and meets the Class A limits of AS3548.

This is a Class A product. In a domestic environment, this

TRADEMARKS

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com, the 3Com logo, CoreBuilder, SuperStack, and Transcend are registered trademarks of 3Com Corporation. 3Com Facts is a service mark of 3Com Corporation.

Apple, AppleTalk, and Macintosh are trademarks of Apple Computer, Inc. Ultrajet is a trademark of Chemtronics. IBM and NetView AIX are registered trademarks of International Business Machines Corporation. HP and OpenView are registered trademarks of Hewlett-Packard Co. MS-DOS and Windows are registered trademarks of Microsoft Corporation. SunNet Manager, SunOS, and OpenWindows are trademarks of Sun Microsystems, Inc. Microswabs and Texwipe are registered trademarks of Texwipe. Liqui-Tool is a trademark of Triangle Tool Group. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

All other company and product names may be trademarks of the respective companies with which they are associated.

ONTENTS

BOUT THIS GUIDE

Introduction 7 Finding Specific Information in This Guide 7 Conventions 8 CoreBuilder 9400 Documentation 9

Paper Documents 9

Software and Documents on CD-ROM 10 Documentation Comments 10 Year 2000 Compliance 10

YSTEM AND SETUP OVERVIEW

CoreBuilder 9400 Intelligent Switch 11

System Features and Benefits 11

System Management 12 Network Configuration Example 12

Speeding Up Server Access 12 System Overview — Front Panel 13 System Overview — Back Panel 14 System Overview — Sample Application 15

NSTALLING THE SYSTEM

Before You Begin 17 Installing the System on a Table Top 17 Installing the System in a Distribution Rack 18

ABLING COREBUILDER

Overview of Cabling 19 Fiber Safety Precautions 19 Cabling Gigabit Ethernet Ports 20

Guidelines for Gigabit Ethernet Cabling 20

Recommended Distances for 1000BASE-SX Ports or

Tr an sce i ve rs 2 0

Recommended Distances for

1000BASE-LX Transceivers 20 Cabling 1000BASE-SX Ports 21 Cabling 1000BASE GBIC Ports 22

Connecting the LX Transceiver to MMF 24

Cabling the Console Port 26

Console Port Pin Assignments 27

Cabling the Out-of-Band Management Port 27

YSTEM POWER UP

Power Up 29 Power-up Diagnostics 30

System Diagnostics 30

Power LED Activity 30 Fault LED Activity 30

Gigabit Ethernet Port Diagnostics 30

Packet LED Activity 30

Status LED Activity 30 System Checks 31 Next Step: Software Configuration 31

9400 P

ORTS

UICK SETUP FOR MANAGEMENT ACCESS

About CoreBuilder 9400 System Management 33

Terminal Connection 34 Modem Connection 34 IP Management Interface 34

Initial Management Access 35

Changing the Console Port Baud Setting 35

Configuring the IP Interface 36

In-band Management 36 Out-of-band Management 36

ITE REQUIREMENTS AND SAFETY CODES

General Safety Requirements 47 Wiring Closet Recommendations 47 Distribution Rack Requirements 48

Protective Grounding for the Rack 48 Space Requirements for the Rack 48 Mechanical Requirements for the Rack 49

Building and Electrical Codes 50

U.S. Building Codes 50 U.S. Electrical Codes 51

ROUBLESHOOTING THE SYSTEM

Getting Additional Help 37 Diagnosing Problems 37

Power Failures 37 Abnormal LED Activity 37

Cleaning Dirty Fiber Optic Ports and Connectors 40

YSTEM SPECIFICATIONS

IELD-REPLACEABLE UNITS

Audience 43 Safety Precautions 43 Power Supply Assembly Removal and Replacement 43

Removing and Replacing the Power Supply 43

Fan Tray Assembly Removal and Replacement 45

ECHNICAL SUPPORT

Online Technical Services 53

World Wide Web Site 53 3Com Knowledgebase Web Services 53 3Com FTP Site 54 3Com Bulletin Board Service 54

Access by Analog Modem 54 Access by Digital Modem 54

3Com Facts Automated Fax Service 54 Support from Your Network Supplier 55 Support from 3Com 55 Returning Products for Repair 57

NDEX

3COM C

ORPORATION LIMITED WARRANTY

BOUT

HIS

UIDE

Introduction

This guide provides all the information that you need to set up your CoreBuilder operating in your network. This guide provides an overview of your system and step-by-step procedures for planning your configuration, installing your system, cabling, powering up, configuring, and troubleshooting. When you are ready to configure your CoreBuilder 9400 system, see the Command

Reference Guide and the Corebuilder 9400 Implementation Guide on the Software and Documentation CD.

If the information in the Software Installation and Release Notes that are shipped with your system differs from the information in this guide, follow the instructions in the Release Notes.

This guide is intended for the system or network administrator who is responsible for installing and managing network hardware. It assumes that you have a working knowledge of local area network (LAN) operations, but it does not assume prior knowledge of the CoreBuilder 9400 system.

9400 system and get it

Finding Specific Information in This Guide

This table shows where to find specific information.

For information on Tu r n t o

Best ways to use the CoreBuilder

The front and back panels “System Overview — Front

Site requirements and other issues to consider before you install your CoreBuilder 9400 system

Installing the system on a table or in a distribution rack

Cabling the CoreBuilder 9400 system

Checking system power-up diagnostics and LEDs

Deciding how to manage your system

Setting the Console port baud “Changing the Console Port

Configuring the IP management interface

Troubleshooting hardware and software problems

Removing and replacing the power supply

9400 system

“System Features and Benefits” on page 11

Panel” starting on page 13

“General Safety Requirements” starting on page 47

“Installing the System on a Table Top” on page 17 and “Installing the System in a Distribution Rack” on page 18

Chapter 3

“Power Up” on page 29

“How Do You Want to Manage the System?” on page 33

Baud Setting” on page 35

“IP Management Interface” on page 34

“Diagnosing Problems” on page 37

“Removing and Replacing the Power Supply” on page 43

8 A

BOUT THIS GUIDE

For information on Turn t o

Removing and replacing the fan tray assembly

Complying with environmental and compliance specifications

Installing field-replaceable components

Checking your site for environmental and safety

“Fan Tray Assembly Removal and Replacement” on page 45

Appendix A: System Specifications

Appendix B: Field-Replaceable Units

Appendix C: Site Requirements and Safety Codes

requirements

Getting help from your network

Appendix D: Technical Support

supplier or 3Com

Returning 3Com products to 3Com for repair

“Returning Products for Repair” on page 57

Conventions

Table 1 and Table 2 list conventions that are used throughout this guide.

Tab l e 1

Icon Type Description

Notice Icons

Information Note

Information that describes important features or instructions

Caution Information that alerts you to potential loss

of data or potential damage to an application, system, or device

Warning Information that alerts you to potential

personal injury

Ta b le 2

Text Conventions

Convention Description

Screen display

Commands

This typeface represents information as it appears on the screen.

The word “command” means that you must enter the command exactly as shown and then press Return or Enter. Commands appear in bold. Example:

To update the system software, enter the following command:

system software Upda te

This guide always gives the full form of a command in uppercase and lowercase letters. However, you can abbreviate commands by entering the fewest letters in each command that identify a unique command. Commands are not case sensitive.

The words “enter” and “type”

When you see the word “enter” in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”

Keyboard key names

If you must press two or more keys simultaneously, the key names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

Words in

italics

Italics are used to:

■

Emphasize a point.

■

Denote a new term at the place where it is defined in the text.

CoreBuilder 9400 Documentation 9

CoreBuilder 9400 Documentation

The following documents comprise the CoreBuilder 9400 documentation set. Documents are available in three forms:

■ Paper documents that are shipped with your

system or with optional components. They are listed in the next section.

CoreBuilder 9400 Software and Documentation

■

with online versions of the paper documents

To order a paper copy of a document that you see on the compact disc, or to order additional compact discs, contact your supplier.

■ Most 3Com documentation is also available on the

3Com Web site:

http://support.3com.com/index.htm

Paper Documents

These documents are shipped with your system:

CoreBuilder 9400 Unpacking Instructions

■

How to unpack your CoreBuilder 9400 system. Also, an inventory list of items that are shipped with your system.

CoreBuilder 9400 Software Installation and Release

■

Notes

All of the new features, system issues, and known problems for the software release.

CoreBuilder 9400 Quick Installation Guide

■

A quick checklist for how to install your system.

CoreBuilder 9400 Getting Started Guide

■

guide)

All of the procedures necessary for getting your system up and running, including information on installing, cabling, powering up, configuring, and troubleshooting the system.

CoreBuilder 9400 Command Quick Reference Card

■

All of the Administration Console switching commands for the CoreBuilder 9400. For complete descriptions of commands, see the

Reference Guide

CoreBuilder 9400 Web Management User Guide

■

(this

Command

How to use the Web Management suite of applications for your system.

10 A

BOUT THIS GUIDE

These documents are shipped with optional devices:

■ CoreBuilder 9400 Power Supply Assembly Removal

and Replacement Guide

How to install an optional additional power supply for the CoreBuilder 9400.

■ CoreBuilder 9400 Fan Tray Removal and

Replacement Guide

Overview information and removal and replacement instructions for the fan tray.

Software and Documents on CD-ROM

The compact disc that is shipped with your system contains the system software, online versions of the paper guides that are shipped with your system, and these guides:

■ Command Reference Guide

A complete multiplatform reference guide to all Administration Console commands for this system and several others.

■ CoreBuilder 9400 Implementation Guide

Information and examples about how to use the features of your system.

Documentation Comments

Your suggestions are very important to us. They help us to make our documentation more useful to you. Please send e-mail comments about this guide to:

sdtechpubs_comments@ne.3Com.com

Please include this information when you comment:

■

Document title

■

Document part number (found on the front or back page of the document)

■

Page number (if appropriate)

Example:

CoreBuilder 9400 Getting Started Guide

Part Number: 10013143

Page 26

Year 2000 Compliance

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page:

http://www.3com.com/products/yr2000.html

YSTEM AND

ETUP

VERVIEW

This chapter contains:

■ An overview of the CoreBuilder

how it provides solutions for your network

■ A description of the major features and

components of the system

■ A network configuration example

9400 system and

CoreBuilder 9400 Intelligent Switch

The CoreBuilder 9400 system delivers full line rate switching among all 24 Gigabit Ethernet ports. The system has the following ports (shown in Figure 1 on page 15):

■ 12 1000BASE-SX (MMF) ports with SC connectors

■ 12 GBIC ports that can accept 1000BASE-LX or

1000BASE-SX GBIC transceivers

The system supports full-duplex mode on all Gigabit Ethernet ports and up to 32,000 MAC addresses. To deliver even higher performance rates among switches, the system supports trunking, which allows you to group up to six Gigabit Ethernet ports into a single multigigabit connection for a maximum of 12 trunks per system.

System Features and Benefits

The CoreBuilder 9400 is part of 3Com’s CoreBuilder family. To combine technologies as your network grows, install the CoreBuilder 9400 in your network.

Some key features of the CoreBuilder 9400 system:

■ High-density Gigabit Ethernet configuration

This system exhibits no packet loss or delays even under maximum network traffic on its 24 Gigabit Ethernet ports.

■ Trunking of Gigabit Ethernet ports

This system allows you to configure up to six Gigabit Ethernet ports into a single multigigabit connection for a maximum of 12 trunks per unit.

■ Trunking links and Spanning Tree Protocol support

The CoreBuilder 9400 protects against cable and equipment failures with Spanning Tree Protocol and trunking links.

■ Failure protection

To protect your network, this system has an optional second power supply.

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■

1: S

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YSTEM AND SETUP OVERVIEW

Resilient links

Resilient links technology protects your network against an individual link or device failure by providing a secondary backup link that is inactive until it is needed.

■

Manageability

The CoreBuilder 9400 provides full support for VLANs and RMON-1, as well as a roving analysis port through SNMP management.

System Management

The CoreBuilder 9400 system includes integrated management to provide fault tolerance and maximum network availability. This management is accessible in three ways:

■

CoreBuilder 9400 Administration Console

■

Standard network management applications based on SNMP, such as 3Com’s Transcend applications, Sun’s SunNet Manager, HP’s OpenView, and IBM’s NetView AIX applications

■

Web Management suite of applications, with forms for many management tasks, charts and wizards to help you configure and monitor your system, and online Help (separately installed) give you instant information about your configuration choices.

Network Configuration Example

This section discusses one way to place the CoreBuilder 9400 in your network.

Speeding Up Server Access

To centralize your servers for easier service and support, use a configuration like the one shown in Figure 3.

Suppose that all of your organization’s servers are located in that physical space. These servers must support a large number of clients that are distributed throughout the organization’s campus. The clients are switched Fast Ethernet desktops.

First, you can multiplex the traffic from each group of desktop clients into one higher-bandwidth stream (trunk) through a SuperStack II Switch 3900.

Each SuperStack II 3900 can, in turn, pass its traffic along to a CoreBuilder 9400, which multiplexes the traffic into Gigabit Ethernet streams for the servers.

This architecture eliminates bottlenecks caused by each Fast Ethernet device as it vies for access to the server.

You can also use the CoreBuilder 9400 for many other applications, such as to consolidate LAN backbones or to provide more flexible trunking configurations.

System Overview — Front Panel

Console Port

Allows you to connect a workstation/terminal/modem to the CoreBuilder

9400 system

for management access

10BASE-TX

Out-of-band Management Port

LEDs

Provide information about the system and each port

1000BASE GBIC Ports1000BASE-SX PortsFan tray

CONSOLE

10BASE TX

STATUS PACKET

STAT

PCKT

STAT

PCKT

STAT

PCKT

STAT

PCKT

3C94024

SERVICE

POWER

FAULT

1000BASE (GBIC)

1000BASE SX

TX RX

1000BASE (GBIC)

1000BASE SX

TX RX

13 14 15 16 17 18

19 20 21 22 23 24

STATUS

green = enabled, link OK flashing green = disabled, link OK off = link fail

System Overview — Front Panel 13

Figure 1

Front Panel of the CoreBuilder 9400 System

14 C

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1: S

YSTEM AND SETUP OVERVIEW

System Overview — Back Panel

Figure 2

Back Panel of the CoreBuilder 9400 System

DC OK

Power supply latch

DC OK

Power Supply No. 2

Power Supply No. 1

System Overview — Sample Application

System Overview — Sample Application 15

Figure 3

Centralizing a Data Center with the CoreBuilder 9400 System

10/100 BASE - TX

12x

19x

SuperStack® II Switch 3900

10/100 BASE - TX

12x

19x

SuperStack II Switch 3900

10 Base - TX

1000 Base - SX

1000 Base - LX

TX RX2TX RX

2000 Mbps Trunk

TX RX

TX RX4TX RX5TX RX6TX RX7TX RX8TX RX9TX RX10TX RX11TX RX

SuperStack® II Switch 9300

1000 Base - SX

Status

green = enabled, link OK flashing green = disabled, link OK

FaultPower

off = link fail

31x

24x

3110

2 1

36x

456789 456789 117118192021 22 117118192021 22 229230313233 34 229230313233 34

11 12

Pckt

11 12

Stat

23 24

Pckt

23 24

Stat

35 36

Pckt

35 36

Stat

Switched 100 Mbps

desktop systems

Status

green = enabled, link OK flashing green = disabled, link OK

FaultPower

off = link fail

31x

24x

Console

StatPckt

456789

3110

11 12

Pckt

456789

3110

11 12

Stat

117118192021 22

23 24

Pckt

117118192021 22

23 24

Stat

229230313233 34

35 36

Pckt

229230313233 34

35 36

green = enabled, link OK flashing green = disabled, link OK off = link fail

Stat

Status

Packet Status

Super Stack II Switch 9300

To other Switch 3900s

36x

Pckt Stat

3C94024

1000BASE SX

TX RX

TX RX3TX RX

1000BASE SX

TX RX4TX RX6TX RX

1000BASE SX

TX RX7TX RX9TX RX

1000BASE SX

TX RX10TX RX12TX RX

STATUS PACKET

RESET PCKT STAT

13 14 15 16 17 18

PCKT STAT

19 20 21 22 23 24

CoreBuilder

10BASE TX

CONSOLE

1000BASE (GBIC)

9400

STATUS

green = enabled, link OK flashing green = disabled, link OK

FAULT

off = link fail

POWER

PCKT STAT

Dedicated 1000 Mbps

bandwidth to each server

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YSTEM AND SETUP OVERVIEW

NSTALLING THE

YSTEM

This chapter describes how to install your CoreBuilder distribution rack.

See Appendix C for site requirements.

■ To install the CoreBuilder 9400 system on a table

top, read these sections:

■

■ To install the CoreBuilder 9400 system in a

distribution rack, read these sections:

■

9400 system on a table top or in a

“Before You Begin” (the next section)

“Installing the System on a Table Top” on page 17

“Before You Begin” (the next section)

“Installing the System in a Distribution Rack” on page 18

Before You Begin

Before you begin this procedure, be sure to:

■ Move the CoreBuilder 9400 system close to where

you plan to install it.

Install the system near an easily accessible power outlet. You can power down the system only by removing the power cord from the power source.

■ Have a No. 2 Phillips screwdriver available.

■ Have the system mounting kit available. See

Ta bl e 3 .

Ta b le 3

Item Qty To u s e i n

Rubber feet (self-adhesive)

Mounting brackets 2 Installing the system in a

8-32 x 1/2 Phillips flat-head screws

10-32 x 1/2 Phillips pan-head screws

CoreBuilder 9400 System Mounting Kit

4 Installing the system on a

table top

distribution rack

8 Installing distribution-rack

mounting brackets

4 Installing the system in a

distribution rack

Installing the System on a Table Top

To install the CoreBuilder 9400 system on a table top, follow these instructions:

See Appendix C for site requirements.

Turn the system on its side.

Remove the protective covering from the rubber feet and place one foot in each marked area at the four corners of the unit.

Turn the system onto its feet.

Verify that the air intake vents and fan exhaust vents at the sides of the system are not blocked.

You are now ready to cable your system. For instructions, see Chapter 3.

18 C

3C94024

1000BASE SX

TX RX

1000BASE SX

TX RX TX

TX RX

TX RX TX

TX RX

TX RX TX

TX RX

TX RX TX

Mounting bracket

Mounting screws

HAPTER

2: I

NSTALLING THE SYSTEM

Installing the System in a Distribution Rack

You can mount the CoreBuilder 9400 system into a

48.26 mm (19-in.) distribution rack. This section describes how to prepare the system and distribution rack for installation and how to mount the system in the rack.

Install your distribution rack near an easily accessible power outlet. You can power down the system only by removing the power cord from the power source.

To prepare the system and distribution rack for installing the CoreBuilder 9400 system:

See Appendix C for distribution rack requirements.

Attach one of the L-shaped mounting brackets to one side of the CoreBuilder 9400 using the 8-32 x 1/2 Phillips flat-head screws. Attach the other bracket to the other side. See Figure 4.

Figure 4

Carefully lift the system into place, aligning the

Installing System Mounting Brackets

bracket holes with the distribution rack holes.

While you hold the system in place, insert the four mounting screws (10-32 x 1/2 Phillips pan-head) into the mounting holes on each side of the rack.

Tighten the mounting screws.

You are now ready to cable the system. For cabling instructions, see Chapter 3.

CLASS 1

LASER PRODUCT

ABLING

OREBUILDER

9400 P

ORTS

This chapter describes how to cable your CoreBuilder network. It gives an overview of cabling and describes how to cable:

■ Gigabit Ethernet ports

■ Console port

■ Out-of-band management port

When all of your Gigabit Ethernet and system network connections are complete, see Chapter 4.

If you are staging the system, you do not need to connect it to the network at this point. See Chapter 4 to start your system before you cable it.

9400 system for connection to the

Overview of Cabling

The CoreBuilder 9400 system is a Gigabit Ethernet switch with this fixed configuration:

■ Twelve 1000BASE-SX ports

■ Twelve 1000BASE GBIC ports (LX or SX

transceivers)

Fiber Safety Precautions

The CoreBuilder 9400 system uses lasers in its fiber optic ports. To ensure your safety, comply with the following precautions.

WARNING: The fiber optic lasers used in this system meet the regulatory requirements for casual exposure to the eye. As with any source of bright light, however, 3Com recommends that you do not look into the laser light source.

IEC 825, Class 1 Laser Devices are for connection only to Class 1 Laser Devices. MMF and SMF fiber optic interfaces use lasers.

20 C

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ABLING COREBUILDER

9400 P

Cabling Gigabit Ethernet Ports

Before you cable the system, consider this Caution.

CAUTION:

network cables before you power on the system (chapter 4) if you need to configure trunks, resilient links, or the Spanning Tree Protocol (STP). To avoid bridge loops, configure trunks, resilient links, and STP using the Administration Console connect the cables and after you power up the system. See the the

Implementation Guide

Guidelines for Gigabit Ethernet Cabling

For all Gigabit Ethernet cabling, keep the ports and connectors free of dust. See “Cleaning Dirty Fiber Optic Ports and Connectors” on page 40 for details.

Recommended Distances for 1000BASE-SX Ports or Transceivers

When you cable 1000BASE-SX ports or transceivers, verify that the length of the fiber cable from the system to any attached device does not exceed these recommended distances:

■

Use 62.5-micron MMF fiber with a modal bandwidth specification of 160 MHz*km for distances of up to 220 m (722 ft).

■

Use 62.5-micron MMF fiber with a modal bandwidth specification of 200 MHz*km for distances of up to 275 m (902 ft).

may not

Yo u

want to connect the

Command Reference Guide

for your system.

ORTS

before

you

and

■

Use 50-micron MMF fiber with a modal bandwidth specification of 400 MHz*km for distances of up to 500 m (1645 ft).

■

Use 50-micron MMF fiber with modal bandwidth specification of 500 Mhz*km for distances of up to 550 m (1805 ft).

Recommended Distances for 1000BASE-LX Transceivers

When you cable 1000BASE-LX transceivers, verify that the length of the fiber cable from the system to any attached device does not exceed these recommended distances:

■

Use 62.5-micron MMF fiber with a modal bandwidth specification of 160 MHz*km for distances of up to 550 m (1805 ft).

■

Use 62.5-micron MMF fiber with a modal bandwidth specification of 200 MHz*km for distances of up to 550 m (1805 ft).

■

Use 50-micron MMF fiber with a modal bandwidth specification of 400 MHz*km for distances of up to 550 m (1805 ft).

■

Use 50-micron MMF fiber with a modal bandwidth specification of 500 MHz*km for distances of up to 550 m (1805 ft).

■

Use 9-micron SMF fiber for distances of up to 10 km (6.2 mi). The specification requires and specifies 5 km (3.1 mi).

Use a conditioned launch cable to connect the 1000BASE-LX transceiver to multimode fiber. Using this cable ensures reliability over the maximum 550 m distance.

+ 44 hidden pages