Allied Telesis AT-FS724L User manual

AT-FS724L
Fast Ethernet Switch
Installation Guide
PN 613-50464-00 Rev A

Copyright ©2003 Allied Telesyn, Inc.
960 Stewart Drive, Suite B, Sunnyvale, CA 94085, USA
All rights reserved. No part of this publication may be reproduced without prior written permission
from Allied Telesyn, Inc.
Ethernet is a registered trademark of Xerox Corporation. All other product names, company names,
logos or other designations mentioned herein are trademarks or registered trademarks of their
respective owners.
Allied Telesyn, 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 Telesyn, 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 Telesyn, Inc. has been
advised of, known, or should have known, the possibility of such damages.

iii
Electrical Safety and Emission Compliance
Statement
Standards: This product meets the following standards.
U.S. Federal Communications Commission
Declaration Of Conformity
Manufacturer Name: Allied Telesyn, Inc.
Manufacturer Address: 960 Stewart Drive, Suite B
Sunnyvale, CA 94085, USA
Manufacturer Telephone: [phone]
Declares that the product: Fast Ethernet Switch
Model Number: AT-FS724L
This product complies with FCC Part 15B, Class B Limits:
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device must not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Radiated Energy
Note: This equipment has been tested and found to comply with the limits
for a Class B digital device pursuant to Part 15 of FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with instructions, may cause harmful interference to radio or
television reception, which can be determined by turning the equipment
off and on. The user is encouraged to try to correct the interference by one
or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications not expressly approved by the manufacturer
or registrant of this equipment can void your authority to operate this
equipment under Federal Communications Commission rules.
Industry Canada
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du
Règlement sur le matériel brouilleur du Canada.

Electrical Safety and Emission Compliance Statement
iv
RFI Emission FCC Class B, EN55022 Class B,
VCCI Class B, C-TICK 1
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 EN55024 3
Electrical Safety EN60950 (TUV), UL60950 (cULus)4
Important: Appendix B contains translated safety statements for installing
this equipment. When you see the , go to Appendix B for the translated
safety statement in your language.
Wichtig: Anhang B enthält übersetzte Sicherheitshinweise für die
Installation dieses Geräts. Wenn Sie sehen, schlagen Sie in Anhang B
den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Tillæg B indeholder oversatte sikkerhedsadvarsler, der vedrører
installation af dette udstyr. Når De ser symbolet , skal De slå op i tillæg
B og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.
Belangrijk: Appendix B bevat vertaalde veiligheidsopmerkingen voor het
installeren van deze apparatuur. Wanneer u de ziet, raadpleeg
Appendix B voor vertaalde veiligheidsinstructies in uw taal.
Important: L'annexe B contient les instructions de sécurité relatives à
l'installation de cet équipement. Lorsque vous voyez le symbole ,
reportez-vous à l'annexe B pour consulter la traduction de ces instructions
dans votre langue.
Tärkeää: Liite B sisältää tämän laitteen asentamiseen liittyvät käännetyt
turvaohjeet. Kun näet -symbolin, katso käännettyä turvaohjetta
liitteestä B.
Importante: l’Appendice B contiene avvisi di sicurezza tradotti per
l’installazione di questa apparecchiatura. Il simbolo , indica di consultare
l’Appendice B per l’avviso di sicurezza nella propria lingua.
Viktig: Tillegg B inneholder oversatt sikkerhetsinformasjon for installering
av dette utstyret. Når du ser , åpner du til Tillegg B for å finne den
oversatte sikkerhetsinformasjonen på ønsket språk.
Importante: O Anexo B contém advertências de segurança traduzidas para
instalar este equipamento. Quando vir o símbolo , leia a advertência de
segurança traduzida no seu idioma no Anexo B.
Importante: El Apéndice B contiene mensajes de seguridad traducidos
para la instalación de este equipo. Cuando vea el símbolo , vaya al
Apéndice B para ver el mensaje de seguridad traducido a su idioma.
Obs! Bilaga B innehåller översatta säkerhetsmeddelanden avseende
installationen av denna utrustning. När du ser , skall du gå till Bilaga B
för att läsa det översatta säkerhetsmeddelandet på ditt språk.

v
Table of Contents
Electrical Safety and Emission Compliance Statement ......................iii
Table of Contents ........................................................................................... v
Welcome to Allied Telesyn .........................................................................vii
Where to Find Related Guides.........................................................................vii
Document Conventions ....................................................................................vii
Contacting Allied Telesyn ...............................................................................viii
Online Support .........................................................................................viii
E-mail and Telephone Support................................................................viii
Returning Products ..................................................................................viii
For Sales or Corporate Information ........................................................viii
Chapter 1
Overview .......................................................................................................... 1
Key Features....................................................................................................... 2
Status LEDs........................................................................................................ 3
Twisted Pair Ports.............................................................................................. 3
Port Speed.................................................................................................... 3
Duplex Mode................................................................................................ 4
Auto MDI/MDI-X......................................................................................... 4
MAC Address Table............................................................................................ 5
Store and Forward.............................................................................................. 6
Backpressure and Flow Control ........................................................................ 6
Internal Power Supply ....................................................................................... 7
Network Topologies ............................................................................................ 8
Power Workgroup Topology........................................................................ 8
Cascade Topology ........................................................................................ 9
Chapter 2
Installation .................................................................................................... 11
Verifying the Package Contents ...................................................................... 11
Planning the Installation................................................................................. 12
Selecting a Site .......................................................................................... 12
Reviewing Safety Guidelines .................................................................... 13
Installing the Switch on a Table or Desktop................................................... 14
Rackmounting the Switch................................................................................ 15
Warranty Registration ..................................................................................... 17

Table of Contents
vi
Chapter 3
Troubleshooting ...........................................................................................19
Appendix A
Technical Specifications ............................................................................21
Physical .............................................................................................................21
Environmental ..................................................................................................21
Electrical Rating ...............................................................................................22
Agency Compliance...........................................................................................22
Pinout Assignments..........................................................................................23
Appendix A
Translated Safety and Emission Information .......................................25

vii
This guide contains instructions on how to install the AT-FS724L Fast
Ethernet Switch.
Where to Find Related Guides
The Allied Telesyn web site at www.alliedtelesyn.com offers you an easy
way to access the most recent documentation, software, and technical
information for all of our products. For product guides, select “Support &
Services” from our web site.
Document Conventions
This guide uses the following conventions:
Note
Notes provide additional information.
Caution
Cautions informs you that performing or omitting a specific action may
result in equipment damage or loss of data.
Warning
Warnings informs you that performing or omitting a specific action may
result in bodily injury.
Welcome to Allied Telesyn

Welcome to Allied Telesyn
viii
Contacting Allied Telesyn
This section provides Allied Telesyn contact information for technical support
as well as sales or corporate information.
Online Support
You can request technical support online by accessing the Allied Telesyn
Knowledge Base from the following web site: http://kb.alliedtelesyn.com.
You can use the Knowledge Base to submit questions to our technical support
staff and review answers to previously asked questions.
E-mail and Telephone Support
For Technical Support via E-mail or telephone, refer to the Support & Services
section of the Allied Telesyn web site: http://www.alliedtelesyn.com.
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 a RMA number, contact Allied Telesyn’s Technical Support at our
web site: http://www.alliedtelesyn.com.
For Sales or Corporate Information
You can contact Allied Telesyn for sales or corporate information at our web
site: http://www.alliedtelesyn.com. To find the contact information for your
country, select “Contact Us” then “Worldwide Contacts.”

1
Chapter 1
Overview
The AT-FS724L is Fast Ethernet switch that provides simple, cost-effective
solutions for switching between 10 Mbps and 100 Mbps.
The AT-FS724L switch features 24 10/100Base-TX twisted pair ports. Each
twisted pair port has a RJ-45 connector and a maximum operating distance of
100 meters (328 feet). These ports are capable of Auto-Negotiating at 10 or 100
Mbps and feature half- and full-duplex operation.
The AT-FS724L features an internal power supply and are designed for
desktop or rackmount installation.
These switches are easy to install and do not require software configuration or
management.
Figure 1 illustrates the front panel of the AT-FS724L switch.
Figure 1 AT-FS724L Front Panel
Table 1 lists the number of ports, connector type, and maximum operating
distance for each switch.
Table 1 AT-FS724L Switch
Model Number of
Ports
10/100Base-TX
Connector Maximum Operating Distance
AT-FS724L 24 RJ-45 100 m (328 ft)
AT-FS724L
24 Port Fast Ethernet Switch
18 20 22 24
10 12 14 162468
91113151357 17 19 21 23
100M
LNK/ACT
100M
LNK/ACT
POWER
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
AUTO
MDI/ MDI-X

Overview
2
Key Features
The AT-FS724L switch has the following key features:
24 10/100Base-TX ports
System and port LEDs
Auto MDI/MDI-X on all ports
Auto-Negotiation on all ports (IEEE 802.3u-compliant)
Store and forward switching mode
Backpressure and flow control (IEEE 802.3x-compliant)
Store and forward packet handling
Storage for up to 4,000 MAC addresses
MAC address aging time at 300 seconds
Embedded 256KB packet buffer or more
Broadcast storm protection
For use on a desktop or rackmount