Preface.................................................................................................................................................... xi

Intended Readers .............................................................................................................................................................. xii

Typographical Conventions............................................................................................................................................................. xii

Notes, Notices, and Cautions............................................................................................................................................ xii

Safety Instructions........................................................................................................................................................... xiii

Safety Cautions............................................................................................................................................................................... xiii

General Precautions for Rack-Mountable Products ........................................................................................................................ xiv

Protecting Against Electrostatic Discharge...................................................................................................................................... xv

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

Ethernet Technology ...........................................................................................................................................................1

Fast Ethernet ...................................................................................................................................................................................... 1

Gigabit Ethernet Technology............................................................................................................................................................. 1

Switching Technology ....................................................................................................................................................................... 2

Switch Description............................................................................................................................................................................. 2

Features.............................................................................................................................................................................................. 3

Ports................................................................................................................................................................................................... 4

Installing the SFP ports ................................................................................................................................................................ 5

Front-Panel Components ................................................................................................................................................................... 5

LED Indicators .................................................................................................................................................................................. 6

Rear Panel Description ...................................................................................................................................................................... 7

Side Panel Description....................................................................................................................................................................... 8

Installation .............................................................................................................................................. 9

Package Contents............................................................................................................................................................................... 9

Before Connecting to the Network .................................................................................................................................................... 9

Installing the Switch without the Rack ............................................................................................................................................ 10

Installing the Switch in a Rack ........................................................................................................................................................ 10

Mounting the Switch in a Standard 19" Rack............................................................................................................................. 11

Power On.................................................................................................................................................................................... 11

Power Failure ............................................................................................................................................................................. 11

The Optional Module....................................................................................................................................................................... 11

The Media Accessory ...................................................................................................................................................................... 13

External Redundant Power System ............................................................................................................................................ 14

Connecting the Switch ......................................................................................................................... 15

Switch to End Node ......................................................................................................................................................................... 15

Switch to Hub or Switch.................................................................................................................................................................. 16

Connecting To Network Backbone or Server .................................................................................................................................. 17

Stacking and the xStack DGS/DXS-3300 Series ............................................................................................................................. 18

Stacking Limitations Utilizing a Ring or Star Topology ............................................................................................................ 20

iii