3Com 3C16980, 3C16981 C

CONTENTS

ABOUT THIS GUIDE

Conventions 8

Related Documentation 9

Year 2000 Compliance 10

Documentation Comments 10

1INTRODUCING THE SWITCH 3300

About the SuperStack II Switch 3300 12

Summary of Features 12

Switch 3300 — Front View Detail 13

10BASE-T/

100BASE-TX Ports 13

LEDs 13

Switch 3300 — Rear View Detail 15

Unit Information Label 15

Power Socket 15

Redundant Power System Socket 15

Console Port 16

Expansion Module Slot 16

Matrix Port 16

Network Configuration Examples 17

Switch 3300 as a Segmentation Switch 17

Switch 3300 as a Collapsed Backbone Switch 18

Switch 3300 as a Desktop Switch 19

Configuration Rules for Fast Ethernet 20

Configuration Rules with Full Duplex 21

2INSTALLING THE SWITCH

Choosing a Suitable Site 24

Rack-mounting 24

16980ua.bk Page iii Friday, April 30, 1999 9:03 AM

Contents

Main 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 C A BOUT T HIS G 1 2 A B C ECHNICAL SPECIFICATIONS D Page Page A BOUT T HIS G Conventions Tab le 1 Notice Icons Tab le 2 Text Conventions Related Documentation Year 2000 Compliance Documentation Comments 1 About the SuperStack II Switch 3300 Switch 3300 Front View Detail Tab le 3 LED behavior Switch 3300 Rear View Detail Page Page Page Page Page Configuration Rules with Full Duplex Page 2 Choosing a Suitable Site Rack-mounting Placing Units On Top of Each Other Stacking Units Page Page The Power-up Sequence Choosing the Correct Cables Solving Problems Indicated by LEDs Tab le 5 Problems indicated by LEDs Managing the Switch A Important Safety Information Page Linformation de Scurit Importante Page Wichtige Sicherheitsinformat ionen B Modem Cable RJ45 Pin Assignments Pin assignments are identical for 10BASE-T and 100BASE-TX RJ45 connectors Tab le 6 Pin assignments Page C ECHNICAL SPECIFICATIONS Page D ECHNICAL SUPPORT Online Technical Services Page Support from Your Network Supplier Support from 3Com 48 APPENDIX D: TECHNICAL SUPPORT When you contact 3Com for assista nce, have the following information ready: Here is a list of worldwide technical teleph one support numbers: Europe, South Africa, and MiddleEast From the following countries, you may use the toll-freenumbers: (1 800 638 3266) Enterprise Custo mers: 1 800 876-3266 Returning Products for Repair Page G Page Page Page Page Page I R S T U W 3Com Corporation LIMITED WARRANTY SUPERSTACK II SWITCH 3300 H S OBTAINING WARRANTY S L IMITATION OF L D G OVERNING L EMC S FCC S CSA S VCCI S BCIQ S