NETGEAR GS748Tv4 Manuale

February 2011

202-10725-01

v1.0

350 East Plumeria Drive

San Jose, CA 95134

USA

GS748T Smart Switch

Hardware Installation Guide

2 |

GS748T Smart Switch Hardware Installation Guide

No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated

into any language in any form or by any means without the written permission of NETGEAR, Inc.

Technical Support

Thank you for choosing NETGEAR. To register your product, get the latest product updates, or get support online,

visit us at http://support.netgear.com.

Phone (US & Canada only): 1-888-NETGEAR

Phone (Other Countries): See Support information card.

Trademarks

NETGEAR, the NETGEAR logo, ReadyNAS, ProSafe, Auto Uplink, X-RAID2, and NeoTV are trademarks or

registered trademarks of NETGEAR, Inc. Microsoft, Windows, Windows NT, and Vista are registered trademarks

of Microsoft Corporation. Other brand and product names are registered trademarks or trademarks of their

respective holders.

Statement of Conditions

To improve internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes

to the products described in this document without notice. NETGEAR does not assume any liability that may occur

due to the use, or application of, the product(s) or circuit layout(s) described herein.

Revision History

Publication Part Number Version Publish Date Comments

202-10725-01 v1.0 February 2011 Document Created

Table of Contents |3

Table of Contents

Chapter 1 Introduction

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

Chapter 2 Physical Description

GS748T Front-Panel and Back-Panel Configuration. . . . . . . . . . . . . . . . . 11

LED Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

System LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Device Hardware Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

RJ-45 Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Factory Defaults Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Chapter 3 Applications

Desktop Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Backbone Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Chapter 4 Installation

Step 1: Preparing the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Step 2: Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Installing the Switch on a Flat Surface. . . . . . . . . . . . . . . . . . . . . . . . . . 22

Installing the Switch in a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Step 3: Checking the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Step 4: Connecting Devices to the Switch. . . . . . . . . . . . . . . . . . . . . . . . . 24

Step 5: Installing an SFP Transceiver Module . . . . . . . . . . . . . . . . . . . . . 25

Step 6: Applying AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Step 7: Managing the Switch using a Web Browser or the PC Utility . . . . 27

GS748T Smart Switch Hardware Installation Guide

4 | Table of Contents

Appendix A Troubleshooting

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Additional Troubleshooting Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . .31

Network Adapter Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Switch Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Appendix B Technical Specifications

Appendix C Notification of Compliance

Index

GS748T Smart Switch Hardware Installation Guide

Table of Contents |5

Chapter 1: Introduction |6

1. Introduction 1

Congratulations on the purchase of your NETGEAR®ProSafeTM GS748T Gigabit Smart

Switch! Your GS748T switch is a state-of-the-art, high-performance, IEEE-compliant network

solution designed for users who require a large number of ports and want the power of

Gigabit connectivity to eliminate bottlenecks, boost performance, and increase productivity.

There are 48 twisted-paired ports with 4 SFP GBIC slots (two SFP slots are combo ports) on

the front panel of the switch which support non-stop 10/100/1000 networks. To simplify

installation, the switch is shipped ready for use out of the box.

The

GS748T Smart Switch Hardware Installation Guide

describes how to install and power

on the GS748T. The information in this manual is intended for readers with intermediate

computer and Internet skills.

This chapter serves as an introduction to the GS748T and provides the following information:

• Overview

• Features

• Package Contents

Chapter 1: Introduction |7

GS748T Smart Switch Hardware Installation Guide

Overview

The NETGEAR GS748T Gigabit Smart Switch provides 48 twisted-pair ports with four built-in

Small Form Factor (SFP) GBIC slots that support nonstop 1000M fiber networks.

Using these Gigabit slots, you can create high-speed connections to a server or network

backbone. For example, you can:

• Connect switches to each other with high-speed links

• Link to high-speed servers

• Provide 10/100/1000M copper and 1000M fiber connectivity

The NETGEAR GS748T Gigabit Smart Switch also provides the benefit of administrative

management with a complete package of features for the observation, configuration, and

control of the network. With a Web-based Graphical User Interface (GUI), the switch’s many

capabilities can be viewed and used in a simple and intuitive manner. The switch’s

management features include configuration for port and switch information, VLAN for traffic

control, port trunking for increased bandwidth, and Class of Service (CoS) for traffic

prioritization. These features provide better understanding and control of the network. Initial

discovery of the switch on the network requires the Smart Control Center program, a utility

that runs on a PC.

The NETGEAR GS748T Gigabit Smart Switch can be free standing or rack mounted in a

wiring closet or equipment room. It is IEEE-compliant and offers low latency for high-speed

networking. All ports can automatically negotiate to the highest speed. This capability makes

the switch ideal for environments that have a mix of Ethernet, Fast Ethernet, or Gigabit

Ethernet devices. In addition, all RJ-45 ports operate in half-duplex or full-duplex mode. The

maximum segment length is 328 feet (100 meters) over Category 5 Unshielded Twisted-Pair

(UTP) cable.

8| Chapter 1: Introduction

GS748T Smart Switch Hardware Installation Guide

Features

The following list identifies the key features of the GS748T:

• Forty-eight 10/100/1000 Mbps auto-sensing Gigabit-Ethernet switching ports.

• Two SFP combo ports.

• Two dedicated 1000M SFP fiber ports.

• Full NETGEAR Smart Switch functionality.

• Full compatibility with IEEE standards:

• IEEE 802.3i (10BASE-T)

• IEEE 802.3u (100BASE-TX)

• IEEE 802.3ab (1000BASE-T)

• IEEE 802.3z (1000BASE-x)

• IEEE 802.3x (Full-duplex flow control)

• Autosensing and auto-negotiating capabilities for all ports.

• Auto Uplink™ on all ports to make the right connection.

• Automatic address learning function to build the packet-forwarding information table. The

table contains up to 8K Media Access Control (MAC) addresses.

• Store-and-Forward transmission to remove bad packets from the network.

• Full-duplex IEEE 802.3x pause frame flow control.

• Active flow control to minimize packet loss and frame drops.

• Half-duplex backpressure control.

• Per port LEDs and power LED.

• Internal power supply.

• Standard NETGEAR 7xx series chassis.

• NETGEAR Green product series power-saving features:

• Automatic power consumption adjustment based on the RJ-45 cable length.

• Per port automatic power down when the port link is down.

Chapter 1: Introduction |9

GS748T Smart Switch Hardware Installation Guide

Package Contents

Figure 1 shows the package contents of the GS748T Gigabit Smart Switch.

Figure 1. Package Contents

Verify that the package contains the following:

• GS748T Gigabit Smart Switch

• Rubber footpads for tabletop installation

• Rackmounting kits

• Power cord

• Installation guide

• Smart Switch Resource CD with NETGEAR Smart Control Center and User’s Manual

If any item is missing or damaged, contact the place of purchase immediately.

LED Link/Act Mode Green=Link at 1000M Yellow=Link at 100/10M Blink=ACT

Power

Reset Fact ory

Default

12345678910 11 12 221314 15 16 17 1819 20 21 2324 3425 26 27 2829 30313233 35363738 39 40 41 42 4344

46T

45T

48F

47F

Combo

Ports

GS748T

SFP LED

GREEN=

1000Mbps

Blink=ACT

48T

47T

Chapter 2: Physical Description |10

2. Physical Description 2

This chapter describes the GS748T Gigabit Smart Switch hardware features. Topics include:

• GS748T Front-Panel and Back-Panel Configuration

• LED Designations

• Device Hardware Interfaces

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