Allied Telesis AT-8324SX User manual

Fast Ethernet
Switch
AT-8324SX
!
Installation
Guide
®
PN 613-50118-00 Rev A

Copyright 2000 Allied Telesyn International, Corp.
960 Stewart Drive Suite B, Sunnyvale, CA 94086 USA
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn International, Corp.
CentreCom is a registered trademark of Allied Telesyn International, Corp.
All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.
Allied Telesyn International, Corp. 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 Telesyn International, Corp. 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
Telesyn International, Corp. has been advised of, known, or should have known, the possibility of such damages.

iii
Electrical Safety and Emission
Statement
Standards: This product meets the following standards.
RFI Emission EN55022 (1998)/CISPR-22 (1995) Class A "1
EN60555-2 (1995) Class A
EN60555-3
WARNING: In a domestic environment this product may cause radio interference in which case the user may be required to take
adequate measures. "2
Immunity IEC 1000-4-2 (4 kV CD, 8 kV AD) "3
IEC 1000-4-3 (1995) (3 V/m)
IEC 1000-4-4 (1995) (1.0 kV - (power line);
0.5 kV - (signal line))
IEC 1000-4-6 (1995) (3 Vrms)
EN50082-1 (1992)
EN61000-4-2 (1995)
EN61000-4-4 (1995)
Electrical Safety CSA/NRTL (CSA 22.2.950& UL 1950) "4
EN60950 (TUV/GS)
Important: Appendix C contains translated safety statements for installing this equipment. When you see the
", go to Appendix
C for the translated safety statement in your language.
Wichtig: Anhang C enthält übersetzte Sicherheitshinweise für die Installation dieses Geräts. Wenn Sie "sehen, schlagen Sie in
Anhang C den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Tillæg C indeholder oversatte sikkerhedsadvarsler, der vedrører installation af dette udstyr. Når De ser symbolet ", skal
De slå op i tillæg C og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.
Belangrijk: Appendix C bevat vertaalde veiligheidsopmerkingen voor het installeren van deze apparatuur. Wanneer u de"ziet,
raadpleeg Appendix C voor vertaalde veiligheidsinstructies in uw taal.
Important: L'annexe C contient les instructions de sécurité relatives à l'installation de cet équipement. Lorsque vous voyez le
symbole ", reportez-vous à l'annexe C pour consulter la traduction de ces instructions dans votre langue.
Tärkeää: Liite C sisältää tämän laitteen asentamiseen liittyvät käännetyt turvaohjeet. Kun näet "-symbolin, katso käännettyä
turvaohjetta liitteestä C.
Importante: l’Appendice C contiene avvisi di sicurezza tradotti per l’installazione di questa apparecchiatura. Il simbolo ", indica
di consultare l’Appendice C per l’avviso di sicurezza nella propria lingua.
VIKTIG: Tillegg C inneholder oversatt sikkerhetsinformasjon for installering av dette utstyret. Når du ser ", åpner du til Tillegg C
for å finne den oversatte sikkerhetsinformasjonen på ønsket språk.
Importante: O Anexo C contém advertências de segurança traduzidas para instalar este equipamento. Quando vir o símbolo ",
leia a advertência de segurança traduzida no seu idioma no Anexo C.
Importante: El Apéndice C contiene mensajes de seguridad traducidos para la instalación de este equipo. Cuando vea el símbolo
", vaya al Apéndice C para ver el mensaje de seguridad traducido a su idioma.
Obs! Bilaga C innehåller översatta säkerhetsmeddelanden avseende installationen av denna utrustning. När du ser
", skall du gå
till Bilaga C för att läsa det översatta säkerhetsmeddelandet på ditt språk.
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 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 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 t o
correct the interference at his own expense.
Note: Modifications or changes not expressly approved by the manufacturer or the FCC can void your right to operate this
equipment.
Canadian Department of Communications
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

v
Table of Contents
Preface ....................................................................................................................................................................................................................ix
Purpose of This Guide .....................................................................................................................................................................................ix
Where to Find Web-based Guides ............................................................................................................................................................ x
Document Conventions .................................................................................................................................................................................xi
Contacting Allied Telesyn Technical Support ................................................................................................................................... xii
Online Support.......................................................................................................................................................................................... xii
Telephone and Fax Support............................................................................................................................................................... xii
E-mail Support........................................................................................................................................................................................... xii
Returning Products ........................................................................................................................................................................................xiii
FTP Server ............................................................................................................................................................................................................xiv
For Sales or Corporate Information ........................................................................................................................................................xv
Tell Us What You Think .................................................................................................................................................................................xvi
Chapter 1
Overview ..............................................................................................................................................................................................................17
About the AT-8324SX Switch .....................................................................................................................................................................18
Switch Architecture ................................................................................................................................................................................ 19
Management Options........................................................................................................................................................................... 19
How to Use this Guide ...................................................................................................................................................................................20
Description of Hardware ..............................................................................................................................................................................21
10Base-T/100Base-TX Ports................................................................................................................................................................ 21
Status LEDs .................................................................................................................................................................................................. 21
Network Management Module........................................................................................................................................................ 22
Optional Expansion Modules............................................................................................................................................................ 24
Optional AT-BSTACK1 Stacking Module ..................................................................................................................................... 25
Optional AT-BRPS8000 Redundant Power Unit ......................................................................................................................25
Power Supply Receptacles.................................................................................................................................................................. 25
Features and Benefits .....................................................................................................................................................................................26
Connectivity................................................................................................................................................................................................ 26
Performance ............................................................................................................................................................................................... 26
Expandability.............................................................................................................................................................................................. 26
Management.............................................................................................................................................................................................. 27

Table of Contents
vi
Chapter 2
Network Planning .........................................................................................................................................................................................29
Sample Topologies .........................................................................................................................................................................................30
Collapsed Backbone.............................................................................................................................................................................. 30
Central Wiring Closet ............................................................................................................................................................................ 31
Remote Connections with Fiber Cable........................................................................................................................................ 32
Making VLAN Connections ................................................................................................................................................................ 33
Connectivity Rules ...........................................................................................................................................................................................34
1000 Mbps Gigabit Ethernet ............................................................................................................................................................. 34
10/100 Mbps Fast Ethernet................................................................................................................................................................ 35
Application Notes ............................................................................................................................................................................................36
Chapter 3
Installing the Stack .......................................................................................................................................................................................37
Selecting a Site ..................................................................................................................................................................................................37
Equipment Checklist ......................................................................................................................................................................................39
Package Contents ................................................................................................................................................................................... 39
Mounting ..............................................................................................................................................................................................................40
Rack Mounting ................................................................................................................................ ........................................ 40
Desktop or Shelf Mounting................................................................................................................................................................ 42
Stacking .................................................................................................................................................................................................................43
Connecting to a Power Source .................................................................................................................................................................44
Chapter 4
Making Network Connections ..............................................................................................................................................................45
Twisted Pair Devices .......................................................................................................................................................................................45
Cabling Guidelines ................................................................................................................................................................................. 45
Connecting to PCs, Servers, Hubs and Switches.................................................................................................................... 46
Wiring Closet Connections................................................................................................................................................................. 47
AT-B15/SX and AT-B15/LX (1000Base, SX and LX) Expansion Modules .............................................................................48
AT-B17 (100Base-FX) Expansion Module ............................................................................................................................................49
Chapter 5
Troubleshooting ............................................................................................................................................................................................51
Diagnosing Switch Indicators ...................................................................................................................................................................51
Power and Cooling Problems ...................................................................................................................................................................52
Installation ...........................................................................................................................................................................................................53
In-Band Access ..................................................................................................................................................................................................54
Appendix A
Cables ....................................................................................................................................................................................................................55
Specifications .....................................................................................................................................................................................................55
Twisted-Pair Cable and Pin Assignments ........................................................................................................................................... 56
10Base-T/100Base-TX Pin Assignments...................................................................................................................................... 56
Console Port Pin Assignments ..................................................................................................................................................................58
DB-9 Port Pin Assignments................................................................................................................................................................ 58
Console Port to 9-Pin COM Port on PC........................................................................................................................................ 59
Console Port to 25-Pin DCE Port on Mode ............................................................................................................................ 59
Console Port to 25-Pin DTE Port on PC........................................................................................................................................ 60

AT-8324SX Installation Guide
vii
Appendix B
Specifications ...................................................................................................................................................................................................61
AT-8324SX Fast Ethernet Switch ..............................................................................................................................................................61
Physical Characteristics......................................................................................................................................................................... 61
Switch Features......................................................................................................................................................................................... 63
MIB Support................................................................................................................................................................................................ 63
RMON Support .......................................................................................................................................................................................... 63
Additional Features ................................................................................................................................................................................ 63
Standards ..................................................................................................................................................................................................... 64
Compliances............................................................................................................................................................................................... 64
Appendix C
Translated Electrical Safety and Emission Information ......................................................................................................65
Index .......................................................................................................................................................................................................................80

ix
Preface
This guide contains installation instructions for the AT-8324SX Fast
Ethernet Switch.
Purpose of This Guide
This guide is intended for network administrators who are
responsible for installing and managing the switches. Network
administrators should be familiar with Ethernet switches, Ethernet
and Fast Ethernet technology, bridging, and the Spanning Tree
Protocol (STP).

Preface
x
Where to Find Web-based Guides
The Allied Telesyn web site at www.alliedtelesyn.com offers you an
easy way to access the most recent documentation and technical
information for all of our products. All web-based documentation for
this product and other Allied Telesyn products can be downloaded
from the web site in pdf format.
There are several manuals that you will need in order to manage your
Ethernet switch. Some guides are shipped with their respective
products, while other manuals, such as this one, are only available
from the Allied Telesyn web site.
If you purchased an optional AT-BMGMT Management Module for
the switch, you will need to download the following manual from the
web site for instructions on how to use the AT-S29 management
software:
❑AT-S29 Management Software User’s Guide,
PN 613-50115-00

AT-8324SX Installation Guide
xi
Document Conventions
This guide uses several conventions that you should become familiar
with first before you begin to install the product.
Note
Notes provide additional information.
Warning
Warnings inform you that performing or omitting a specific action
may result in bodily injury.
Caution
Cautions inform you that performing or omitting a specific action
may result in equipment damage or loss of data.

Preface
xii
Contacting Allied Telesyn Technical Support
There are several ways that you can contact Allied Telesyn technical
support: online, telephone, fax, and e-mail.
Online Support You can request technical support online by filling out the
Tech-Assistant Form at www.alliedtelesyn.com/support.htm.
Telephone and
Fax Support
E-mail Support United States and Canada
[e-mail]
Latin America, Mexico, Puerto Rico, Caribbean, and Virgin
Islands
[e-mail]
United Kingdom, Sweden, Norway, Denmark, and Finland
[email protected]
Americas
United States, Canada, Mexico,
Central America, South America
Tel: [phone], option 4
Fax: [phone]
Germany
Germany, Switzerland, Austria, Eastern
Europe
Tel: [phone]
Fax: [phone]
Asia
Singapore, Taiwan, Thailand, Malaysia,
Indonesia, Korea, Philippines, China,
India, Hong Kong
Tel: [phone]
Fax: [phone]
Italy
Italy, Spain, Portugal, Greece, Turkey, Israel
Tel: [phone]
Fax: [phone]
Australia
Tel: [phone]
Fax: [phone]
Japan
Tel: [phone]
Fax: [phone]
France
France, Belgium, Luxembourg,
The Netherlands, Middle East, Africa
Tel: [phone]
Fax: [phone]
United Kingdom
United Kingdom, Denmark, Norway,
Sweden, Finland, Iceland
Tel: [phone]
Fax: [phone]

AT-8324SX Installation Guide
xiii
Returning Products
Products for return or repair must first be assigned a Return Materials
Authorization (RMA) number. A product sent to Allied Telesyn
without a RMA number will be returned to the sender at the sender’s
expense.
To obtain an RMA number contact Allied Telesyn’s Technical Support
at one of the following locations:
North America
2205 Ringwood Ave
San Jose, CA 95131
Tel: [phone], option 4
Fax: [phone]
European Customer Support Centre
10/11 Bridgemead Close
Westmead Industrial Estate
Swindon, Wiltshire SN5 7YT
England
Tel: [phone]
Fax: [phone]
Latin America, the Caribbean,
Virgin Islands
Tel: international code + 425-481-3852
Fax: international code + 425-483-9458
Mexico and Puerto Rico
Tel: [phone], ext 3852 or
1-800-424-4284, ext 3852
Mexico only: 95-800-424-5012, ext 3852
Fax: international code + 425-489-9191

Preface
xiv
FTP Server
If you need a driver for an Allied Telesyn device and you know the
name of the driver, you can download the software by connecting
directly to our FTP server at ftp://gateway.centre.com.
At login, enter “anonymous”. Enter your e-mail address for the
password as requested by the server at login.

AT-8324SX Installation Guide
xv
For Sales or Corporate Information
Allied Telesyn International, Corp.
19800 North Creek Parkway, Suite 200
Bothell, WA 98011
Tel: [phone]
Fax: [phone]
Allied Telesyn International, Corp.
960 Stewart Drive, Suite B
Sunnyvale, CA 94086
Tel: [phone] (USA and Canada)
Fax: [phone]

Preface
xvi
Tell Us What You Think
If you have any comments or suggestions on how we might improve
this or other Allied Telesyn documents, please fill out the Feedback
on Documentation form at
www.alliedtelesyn.com/forms/feedbackman.htm.

17
Chapter 1
Overview
The AT-8324SX Fast Ethernet Switch is a stackable switch with 24
10Base-T/100Base-TX ports, plus two slots for optional 100Base-FX,
1000Base-SX, and 1000Base-LX expansion modules. One of these slots
can also be used for the optional AT-BSTACK1 Stacking Module that
allows you attach up to four switches to a 4 Gbps high-speed backplane.
There is also an expansion slot for the AT-BMGMT module, an
SNMP-based network management module. This module supports both
in-band and out-of-band access for managing the switch and the
attached stack.

Overview
18
About the AT-8324SX Switch
Figure 1 illustrates the front panel of the switch.
Figure 1 AT-8324SX Front Panel
Figure 2 illustrates the rear panel.
Figure 2 AT-8324SX Rear Panel
10/100 Mbps RJ-45 Ports Port Status Indicators
Expansion
Module
Indicators
Mode Selection
System
Indicators
M
G
M
T
A
B
Expansion Slot for AT-BMGMT
Management Module
Expansion Slot for Media
Expansion Module
Expansion Slot for
Media Expansion Module
or AT-BSTACK1 Stacking
Module
Power Socket
Redundant Power
Socket

AT-8324SX Installation Guide
19
Switch
Architecture
The AT-8324SX switch employs a high-speed switching fabric. This
design allows for simultaneous transport of multiple packets at low
latency on all ports. It also uses store-and-forward switching to ensure
maximum data integrity. In this mode, the entire packet must be
received into a port buffer and checked for validity before being
forwarded. This prevents errors from being propagated throughout the
network. This switch also features full-duplex capability on all ports,
which effectively doubles the bandwidth of each connection.
This AT-8324SX switch can be used in a standalone configuration, or can
be stacked up to four high to form a single logical switch with up to 104
ports. When stacked, the 4 Gbps stack backplane provides enough
bandwidth for the most demanding environment. Moreover, you can
use a 100 Mbps fiber module for connecting to a remote site, or a
Gigabit module for a high-speed backbone connection.
Management
Options
This switch contains a comprehensive array of LEDs for "at-a-glance"
monitoring of network and port status. The optional AT-BMGMT
Management Module allows the entire stack to be managed in-band via
SNMP, RMON (Groups 1, 2, 3 and 9), or with a Web browser, as well as
remotely via Telnet or SLIP. This module also has a serial port for out-of-
band management.
There’s also support for the AT-BRPS8000 Redundant Power Supply to
ensure continuous operation in the event of an AC power loss or the
failure of the switch’s internal power supply.

Overview
20
How to Use this Guide
Read Chapters 1 through 4 before installing the AT-8324SX switch. You
can also read the AT-S29 Software Management User’s Guideto learn
how to manage your network. This guide is available from the Allied
Telesyn web site.