About This Manual .............................................................................................................................................................. viii

Intended Readers ............................................................................................................................................................. viii

Typographical Conventions............................................................................................................................................. viii

Notes, Notices, and Cautions........................................................................................................................................... viii

Safety Instructions..............................................................................................................................................................ix

Safety Cautions...................................................................................................................................................................ix

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

Protecting Against Electrostatic Discharge ........................................................................................................................xi

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

Switch Description ..............................................................................................................................................................1

Features ...............................................................................................................................................................................1

Front-Panel Components .....................................................................................................................................................2

LED Indicators ...............................................................................................................................................................2

Stacking LED Indicators.................................................................................................................................................3

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

RPS Connector ...............................................................................................................................................................4

Plug-in Modules ..................................................................................................................................................................4

DEM-340T 1000BASE-T Module .................................................................................................................................4

DEM-340MG SFP (Mini GBIC) Module.......................................................................................................................5

DEM-540 IEEE 1394 Stacking Module .........................................................................................................................5

Switch Stacking...................................................................................................................................................................5

Management Options ..........................................................................................................................................................6

Installation................................................................................................................................................................................8

Package Contents ................................................................................................................................................................8

Before You Connect to the Network ...................................................................................................................................8

Installing the Switch without the Rack ...........................................................................................................................8

Installing the Switch in a Rack .......................................................................................................................................9

Mounting the Switch in a Standard 19" Rack...............................................................................................................10

Connecting Stacked Switch Groups .............................................................................................................................10

Configuring a Switch Group for Stacking ....................................................................................................................12

External Redundant Power System...............................................................................................................................13

Connecting the Console Port ........................................................................................................................................14

Password Protection .....................................................................................................................................................15

SNMP Settings .............................................................................................................................................................16

IP Address Assignment.................................................................................................................................................17

Connecting Devices to the Switch ................................................................................................................................18

Basic Switch Management .....................................................................................................................................................19

DGS-3312SR Gigabit Layer 3 Switch