D-Link DGS-3120-48TC-SI Service Manual

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Information in this document is subject to change without notice.
© 2010 D-Link Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Corporation; Microsoft and Windows are registered trademarks

of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-

Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
March 2011 P/N 651G312XX025G

FCC Warning

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 reasonable 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 this 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 own expense.

CE Mark Warning

This is a Class A product. In a domestic environment, this product may cause radio interference in which case the
user may be required to take adequate measures.

Warnung!

Dies ist ein Produkt der Klasse A. Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen. In diesem Fall
kann vom Benutzer verlangt werden, angemessene Massnahmen zu ergreifen.

Precaución!

Este es un producto de Clase A. En un entorno doméstico, puede causar interferencias de radio, en cuyo case, puede
requerirse al usuario para que adopte las medidas adecuadas.

Attention!

Ceci est un produit de classe A. Dans un environnement domestique, ce produit pourrait causer des interférences
radio, auquel cas l`utilisateur devrait prendre les mesures adéquates.

Attenzione!

Il presente prodotto appartiene alla classe A. Se utilizzato in ambiente domestico il prodotto può causare interferenze
radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati.

VCCI Warning

この装置は、クラス A 情報技術装置です。この装置を家庭環境で使用すると電波妨害を引き起こすことがあります。
この場合には使用者が適切な対策を講ずるよう要求されることがあります。 VCCI-A

xStack® DGS-3120 Series Managed Switch Hardware Installation Guide

Table of Contents

Intended Readers ......................................................................................................................................................... v

Typographical Conventions .......................................................................................................................................... v

Notes, Notices, and Cautions ....................................................................................................................................... v

Safety Instructions ....................................................................................................................................................... vi

Safety Cautions ....................................................................................................................................................... vi

General Precautions for Rack-Mountable Prod uc ts .................................................................................................... vii

Protecting Against Electrostatic Discharge ................................................................................................................. viii

Chapter 1 Introduction ................................................................................................................................................ 1

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

Features ........................................................................................................................................................................ 2

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

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

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

Rear Panel Description ............................................................................................................................................. 8

Side Panel Description ............................................................................................................................................. 9

Chapter 2 Installation ................................................................................................................................................ 10

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

Installation Guidelines ................................................................................................................................................. 10

Installing the Switch without a Rack ....................................................................................................................... 11

Attaching Brackets to a Switch for Rack Mounting................................................................................................. 11

Mounting the Switch in a Standard 19" Rack ......................................................................................................... 12

Power On (AC Power) ................................................................................................................................................ 12

Power Failure (AC Power) ...................................................................................................................................... 12

Connecting DC Power to the DGS-3120-24SC-DC ................................................................................................... 13

Installing SFP Ports .................................................................................................................................................... 13

Connect to a Redundant Power Supply ..................................................................................................................... 15

External Redundant Power System ............................................................................................................................ 16

DPS-700 ................................................................................................................................................................. 16

DPS-800 ................................................................................................................................................................. 18

DPS-900 ................................................................................................................................................................. 19

Connecting the Switch ............................................................................................................................................ 21

Switch to End Node .................................................................................................................................................... 21

Switch to Switch .......................................................................................................................................................... 22

Connecting to Network Backbone or Server .............................................................................................................. 23

Chapter 3 Introduction to Switch Management ..................................................................................................... 24

Management Options ................................................................................................................................................. 24

Connecting the Console Port ...................................................................................................................................... 24

First Time Connecting to the Switch ........................................................................................................................... 26

Password Protection ................................................................................................................................................... 26

IP Address Assignment .......................................................................................................................................... 27

SNMP Settings ....................................................................................................................................................... 27

Traps ....................................................................................................................................................................... 28

MIBs ........................................................................................................................................................................ 28

Chapter 4 Web-based Switch Configuration .......................................................................................................... 29

Introduction ................................................................................................................................................................. 29

Logging onto the Web Manager ................................................................................................................................. 29

Web-based User Interface .......................................................................................................................................... 30

Areas of the User Interface ..................................................................................................................................... 30

Web Pages ................................................................................................................................................................. 30

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xStack® DGS-3120 Series Managed Switch Hardware Installation Guide

Chapter 5 Appendix Section .................................................................................................................................... 31

Appendix A – Technical Specifications ....................................................................................................................... 31

General ................................................................................................................................................................... 31

Physical and Environmental ................................................................................................................................... 31

Performance ........................................................................................................................................................... 32

LED Indicators ........................................................................................................................................................ 33

Port Functions......................................................................................................................................................... 34

Appendix B – Cables and Connectors ........................................................................................................................ 37

Ethernet Cable ........................................................................................................................................................ 37

Console Cable ........................................................................................................................................................ 38

Redundant Power Supply (RPS) Cable ................................................................................................................. 39

Appendix C – Module Specs and Cable Lengths ....................................................................................................... 41

Warranties ...................................................................................................................................................................... 42

Technical Support Information .................................................................................................................................... 43

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