Allied Telesis AT-FS750/48 User Manual

Fast Ethernet
Smart Switch

AT-FS750/48

Installation Guide

613-000537 Rev. B

Copyright © 2007 Allied Telesis, Inc.

All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
Allied Telesis is a trademark of Allied Telesis, Inc. Microsoft and Internet Explorer are registered trademarks of Microsoft

Corporation. Netscape Navigator is a registered trademark of Netscape Communications Corporation. All other product names,
company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective
owners.

Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without
prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be
liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising
out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or
should have known, the possibility of such damages.

Electrical Safety and Emissions Standards

This product meets the following standards.

U.S. Federal Communications Commission

Radiated Energy

Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15
of 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 instruction 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.

Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right to operate
this equipment.

Industry Canada

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

RFI Emissions FCC Class A, EN55022 Class A, CISPR Class A, C-TICK, CE

Warning: In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.

Immunity EN55024

Electrical Safety EN60950-1 (TUV), UL 60950-1 (

CULUS

)

Laser Safety EN60825

3

Translated Safety Statements

Important: The  indicates that a translation of the safety statement is available in a PDF
document titled “Translated Safety Statements” (613-000405) posted on the Allied Telesis website at
www.alliedtelesis.com.

4

Contents

Preface ................................................................................................................................................................................11

Safety Symbols Used in this Document................................................................................................................................12

Where to Find Web-based Guides .......................................................................................................................................13

Contacting Allied Telesis ......................................................................................................................................................14

Online Support ..............................................................................................................................................................14

Email and Telephone Support .......................................................................................................................................14

Warranty........................................................................................................................................................................14

Returning Products........................................................................................................................................................14

Sales or Corporate Information .....................................................................................................................................14

Management Software Updates ....................................................................................................................................14

Overview .............................................................................................................................................................................15

Features ...............................................................................................................................................................................16

Front and Back Panels .........................................................................................................................................................17

Ports .....................................................................................................................................................................................18

Twisted Pair Ports .........................................................................................................................................................18

SFP Ports ......................................................................................................................................................................18

LEDs.....................................................................................................................................................................................19

Power LED ....................................................................................................................................................................19

10/100Base-T Port LEDs ..............................................................................................................................................19

10/100/1000Base-T Port LEDs .....................................................................................................................................20

SFP LEDs......................................................................................................................................................................21

Power Supply .......................................................................................................................................................................22

Ethernet Switching Basics ....................................................................................................................................................23

MAC Address Table ......................................................................................................................................................23

Duplex Mode .................................................................................................................................................................23

Store and Forward.........................................................................................................................................................24

Back Pressure and Flow Control...................................................................................................................................24

Network Topologies..............................................................................................................................................................26

Power Workgroup Topology .......................................................................................................

Collapsed Backbone .....................................................................................................................................................27

...................................26

Installation ..........................................................................................................................................................................29

Reviewing Safety Precautions..............................................................................................................................................30

Selecting a Site for the Switch..............................................................................................................................................32

Cabling .................................................................................................................................................................................33

Unpacking the Switch ...........................................................................................................................................................34

Installing the Switch on a Desktop ........................................................................................................................................35

Installing the Switch in a Rack ..............................................................................................................................................36

Installing an Optional SFP Transceiver ................................................................................................................................39

Cabling and Powering On the Switch ...................................................................................................................................41

Connecting the Twisted Pair Cables .............................................................................................................................41

Connecting the Fiber Optic Cables ...............................................................................................................................42

Powering On the Switch ................................................................................................................................................42

Starting a Management Session ..........................................................................................................................................44

Troubleshooting ................................................................................................................................................................45

Appendix A: Technical Specifications .............................................................................................................................47

Physical Specifications .........................................................................................................................................................47

Environmental Specifications................................................................................................................................................47

5

Contents

Power Specifications.............................................................................................................................................................47

Safety and Electromagnetic Emissions Certifications...........................................................................................................47

Connectors and Port Pinouts ................................................................................................................................................48

6

Figures

Figure 1. AT-FS750/48 Front and Back Panels...................................................................................................................17

Figure 2. Power LED ...........................................................................................................................................................19

Figure 3. 10/100Base-T Port LEDs......................................................................................................................................20

Figure 4. 10/100/1000Base-T Port LEDs.............................................................................................................................20

Figure 5. SFP LED ..............................................................................................................................................................21

Figure 6. Power Workgroup Topology.................................................................................................................................26

Figure 7. Collapsed Backbone - Hub Topology...................................................................................................................27

Figure 8. Attaching the Rubber Feet ...................................................................................................................................35

Figure 9. Attaching the Rack-Mount Bracket .......................................................................................................................36

Figure 10. Mounting the Switch on the Rack.......................................................................................................................36

Figure 11. Removing the Dust Plug from the SFP Slot .......................................................................................................39

Figure 12. Inserting the SFP................................................................................................................................................40

Figure 13. Connecting the Twisted Pair Data Cables..........................................................................................................41

Figure 14. Removing the Dust Plug from the SFP...............................................................................................................42

Figure 15. Connecting the Fiber Optic Cable ......................................................................................................................42

Figure 16. Plugging in the AC Power Cord..........................................................................................................................43

Figure 17. AT-S86 Management Software Main Page........................................................................................................44

Figure 18. RJ-45 Connector and Port Pin Layout................................................................................................................48

7

Figures

8

Tables

Table 1. Safety Symbols .....................................................................................................................................................12

Table 2. Power LED ...........................................................................................................................................................19

Table 3. 10/100Base-T Port LEDs ......................................................................................................................................20

Table 4. 10/100/1000Base-T Port LEDs .............................................................................................................................21

Table 5. SFP LED ...............................................................................................................................................................21

Table 6. Twisted Pair Cabling and Distances .....................................................................................................................33

Table 7. MDI Pin Signals (10Base-T or 100Base-TX) ........................................................................................................48

Table 8. MDI-X Pin Signals (10Base-T or 100Base-TX) ....................................................................................................48

Table 9. RJ-45 1000Base-T Connector Pinouts .................................................................................................................49

9

Tables

10

Preface

This guide contains instructions on how to install the AT-FS750/48 Fast
Ethernet Smart switch. This preface contains the following sections:

 “Safety Symbols Used in this Document” on page 12

 “Where to Find Web-based Guides” on page 13

 “Contacting Allied Telesis” on page 14

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Preface

Safety Symbols Used in this Document

This document uses the safety symbols defined in Table 1.

Table 1. Safety Symbols

Symbol Meaning Description

Caution Performing or omitting a specific action may

result in equipment damage or loss of data.

Warning Performing or omitting a specific action may

result in electrical shock.

12

Where to Find Web-based Guides

The installation and user guides for all Allied Telesis products are available
in portable document format (PDF) on our web site at
www.alliedtelesis.com. You can view the documents online or download
them onto a local workstation or server.

AT-FS750/48 Fast Ethernet Smart Switch Installation Guide

13

Preface

Contacting Allied Telesis

This section provides Allied Telesis contact information for technical
support as well as sales and corporate information.

Online Support You can request technical support online by accessing the Allied Telesis

Knowledge Base: www.alliedtelesis.com/support/kb.aspx. You can use
the Knowledge Base to submit questions to our technical support staff and
review answers to previously asked questions.

Email and
Telephone

Support

For Technical Support via email or telephone, refer to the Support &
Services section of the Allied Telesis web site: www.alliedtelesis.com.
Select your country from the list displayed on the website. then select the
appropriate menu tab.

Warranty For hardware warranty information, refer to the Allied Telesis web site:

www.alliedtelesis.com/support/warranty.

Returning

Products

Sales or

Corporate

Products for return or repair must first be assigned a return materials
authorization (RMA) number. A product sent to Allied Telesis without an
RMA number will be returned to the sender at the sender’s expense.

To obtain an RMA number, contact the Allied Telesis Technical Support
group at our web site: www.alliedtelesis.com/support/rma. Select your
country from the list displayed on the website. Then select the appropriate
menu tab.

You can contact Allied Telesis for sales or corporate information through
our web site: www.alliedtelesis.com. To find the contact information for
your country, select Contact Us -> Worldwide Contacts.

Information

Management

Software Updates

14

New releases of management software for our managed products are
available from either of the following Internet sites:

r Allied Telesis web site: www.alliedtelesis.com

r Allied Telesis FTP server: ftp://ftp.alliedtelesis.com

If you prefer to download new software from the Allied Telesis FTP server
from your workstation’s command prompt, you will need FTP client
software and you must log in to the server. Enter “anonymous” for the user
name and your email address for the password.

Chapter 1

Overview

The AT-FS750/48 Fast Ethernet Smart switch is a Layer 2 Fast Ethernet
switch designed to simplify the task of creating or expanding an Ethernet
or Fast Ethernet network.

This chapter contains the follows sections:

 “Features” on page 16

 “Front and Back Panels” on page 17

 “Ports” on page 18

 “LEDs” on page 19

 “Power Supply” on page 22

 “Ethernet Switching Basics” on page 23

 “Network Topologies” on page 26

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