Allied Telesis AT-FS716 User manual

AT-FS716
AT-FS716E
AT-FS724i
Fast Ethernet Switches
Installation Guide
PN 613-10804-00 Rev F

Copyright 2002 Allied Telesyn, Inc.
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, 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 butnot 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 Emissions Compliance
Statement
For AT-FS716 and AT-FS716E
Standards: This product meets the following standards.
RFI Emission EN55022 Class A !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
Power to the hub must be sourced only from the adapter. (AT-FS716E) !3
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.
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.

iv
Electrical Safety and Emissions Compliance Statement
For AT-FS724i
Standards: This product meets the following standards.
U.S. Federal Communications Commission
Declaration Of Conformity
Manufacture Name: Allied Telesyn, Inc.
Manufacture Address: 960 Stewart Drive, Suite B
Sunnyvale, CA 94085 USA
Manufacture Telephone: [phone]
Declares that the product: Fast Ethernet Switch
Model Number: AT-FS724i
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.

AT-FS716 Series and AT-FS724i Installation Guide
v
For All Models
Immunity EN55024 !4
Electrical Safety TUV-EN60950, UL 1950 (UL/cUL) !5
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.

vii
Table of Contents
Electrical Safety and Emissions Compliance Statement ....................iii
For AT-FS716 and AT-FS716E.........................................................................iii
For AT-FS724i ...................................................................................................iv
For All Models.....................................................................................................v
Welcome to Allied Telesyn ..........................................................................ix
Where to Find Related Guides..........................................................................ix
Document Conventions .....................................................................................ix
Contacting Allied Telesyn Technical Support...................................................x
Online Support............................................................................................x
Telephone Support ......................................................................................x
E-mail Support...........................................................................................xi
Returning Products ...........................................................................................xi
Management Software Updates .......................................................................xi
For Sales or Corporate Information ................................................................xii
Tell Us What You Think ..................................................................................xii
Chapter 1
Overview ..........................................................................................................1
Key Features.......................................................................................................2
Status LEDs........................................................................................................3
Power Requirements ..........................................................................................3
Internal Power Supply................................................................................3
External Power Supply...............................................................................3
Auto MDI/MDI-X................................................................................................4
Auto-negotiation.................................................................................................4
Network Topologies............................................................................................5
Power Workgroup Topology........................................................................5
Cascade Topology ........................................................................................6

Table of Contents
viii
Chapter 2
Installation ......................................................................................................7
Verifying the Package Contents ........................................................................7
Planning the Installation...................................................................................8
Selecting a Site............................................................................................8
Reviewing Safety Guidelines......................................................................9
Installing the Switch on a Table or Desktop...................................................10
Rackmounting the Switch................................................................................11
Warranty Registration .....................................................................................13
Chapter 3
Troubleshooting ...........................................................................................15
Appendix A
Technical Specifications ............................................................................17
Physical.............................................................................................................17
Environmental..................................................................................................17
Electrical Rating...............................................................................................18
Agency Compliance...........................................................................................18
Pinout Assignments..........................................................................................19
Appendix B
Translated Safety and Emission Information .......................................21
For AT-FS716 and AT-FS716E........................................................................22
For AT-FS724i...................................................................................................24
All Models..........................................................................................................25

ix
This guide contains instructions on how to install the AT-FS716, AT-FS716E,
and AT-FS724i Fast Ethernet Switches.
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
x
Contacting Allied Telesyn Technical Support
You can contact Allied Telesyn technical support online or by telephone or
e-mail.
Online Support
You can request technical support online by accessing the Knowledge Base at
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.
Telephone Support
For technical support by phone, contact Allied Telesyn at one of the following
locations:
Americas
United States, Canada, Mexico,
Central America, South America
Tel: [phone]
Germany
Germany, Switzerland, Austria, Eastern
Europe
Tel: [phone]
Asia
Singapore, Taiwan, Thailand, Malaysia,
Indonesia, Korea, Philippines, China,
India, Hong Kong
Tel: [phone]
Italy
Italy, Spain, Portugal, Greece, Turkey,
Israel
Tel: [phone]
Australia
Tel: [phone] Japan Tel: [phone]
France
France, Belgium, Luxembourg,
The Netherlands, Middle East, Africa
Tel: [phone]
United Kingdom
United Kingdom, Denmark, Norway,
Sweden, Finland
Tel: [phone]

AT-FS716 Series and AT-FS724i Installation Guide
xi
E-mail Support
Latin America, Mexico, Puerto Rico, Caribbean, and Virgin Islands
[e-mail]
Europe
[e-mail]
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:
Management Software Updates
New releases of management software for our managed products can be
downloaded from our web site at www.alliedtelesyn.com or our FTP server
at ftp.alliedtelesyn.com. To use the FTP server, enter ‘anonymous’ for the
user name and your e-mail address for the password.
North America
Toll-free: 1-800-762-1664
Fax: [phone]
Europe, Africa, and the Middle East
Tel: [phone]
Fax: [phone]
Latin America, the Caribbean, and
Virgin Islands
Tel: international code + 425-481-3852
Fax: international code + 425-481-3895
Puerto Rico
Tel: [phone], ext 3852 or
1-800-424-4284, ext 3852
Mexico
Toll-free: 800-424-5012, ext 3852
Fax: international code + 425-481-3895
Asia and Southeast Asia
Tel: [phone]
Fax: [phone]
Australia
Toll-free: 1-800-000-880
Fax: [phone]
New Zealand
Toll-free: 0800-45-5782

Welcome to Allied Telesyn
xii
For Sales or Corporate Information
You can contact Allied Telesyn for sales or corporate information at the
location below:
Allied Telesyn, Inc.
19800 North Creek Parkway, Suite 200
Bothell, WA 98011
Tel: [phone]
Fax: [phone]
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 General Enquiry Form
online. This form can be accessed by selecting “Contact Us” from
www.alliedtelesyn.com.

1
Chapter 1
Overview
The AT-FS716, AT-FS716E, and AT-FS724i are Fast Ethernet switches that
provide simple, cost-effectivesolutionsfor switching between 10 Mbps and 100
Mbps.
The AT-FS716 and AT-FS716E switches feature 16 10/100Base-TX twisted
pair ports. The AT-FS724i 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-FS716 and AT-FS724i feature an internal power supply and are
designed for desktop or rackmount installation. The AT-FS716E features an
external power supply and is designed for desktop use only.
Theseswitches are easy to install and do not require software configuration or
management.
Figure 1 illustrates the front panel of an AT-FS716 Series Switch.
Figure 1 AT-FS716 Series Front Panel (Model AT-FS716E)
Figure 2 illustrates the front panel of the AT-FS724i switch.
Figure 2 AT-FS724i Front Panel

Overview
2
Table 1 lists the number of ports, connector type, and maximum operating
distance for each switch.
Table 1 AT-FS716 Series and AT-FS724i Switches
Key Features
The AT-FS716 Series and AT-FS724i switches have the following key features:
"LEDs for unit and port status
"16 or 24 auto-negotiating 10/100Base-TX ports
"Auto MDI/MDI-X on all ports
"MAC address table with a capacity of 4k addresses
"Store and forward switching mode
"Installs in a standard 19-inch rack (AT-FS716 and AT-FS724i only)
Model Number of
Ports
10/100Base-TX
Connector Maximum Operating Distance
AT-FS716 16 RJ-45 100 m (328 ft)
AT-FS716E 16 RJ-45 100 m (328 ft)
AT-FS724i 24 RJ-45 100 m (328 ft)

AT-FS716 Series and AT-FS724i Installation Guide
3
Status LEDs
Table 2 lists the status LEDs for the AT-FS716 Series and AT-FS724i switches.
Table 2 Status LEDs
Power Requirements
Internal Power Supply
TheAT-FS716andAT-FS724iuseauniversalinternalswitchingpowersupply
with 100 to 240 V AC, 50/60 Hz, 0.5A input rating. Allied Telesyn ships power
cords with these units to the U.S., Continental Europe, and the U.K. The
switches require input of 100 to 240 V AC. The AT-FS716 and AT-FS716E
switches have a maximum power consumption of 8W. The AT-FS724i switch
has a maximum power consumption of 15W.
External Power Supply
The AT-FS716E uses an external power adapter which is included with the
unit.
LED Color Description
POWER Green Power is applied to the switch.
LINK/ACTIVITY Green
Blinking
OFF
A valid link has been established on the port.
The port is transmitting data.
A link has not been detected on the port.
100M Green
OFF
The port is operating at 100 Mbps.
The port is operating at 10 Mbps.
FDX
(Full-duplex) Green
OFF
The port is operating in full-duplex mode.
The port is operating in half-duplex mode.

Overview
4
Auto MDI/MDI-X
An RJ-45 twisted pair port on a 10 Mbps or 100 Mbps Ethernet network device
can have one of two possible wiring configurations: MDI or MDI-X. The RJ-45
port on a PC, router, or bridge is typically wired as MDI, while the twisted pair
port on a switch or hub is usually MDI-X.
To connect two 10 Mbps or 100 Mbps network devices together that have
dissimilar port wiring configurations, such as MDI to MDI-X, you use a
straight-through twisted pair cable. To connect two network devices that have
the same wiring configuration, such as MDI to MDI, you use a crossover cable.
TheAT-FS716,AT-FS716E,andAT-FS724iswitcheshaveauto MDI/MDI-Xon
all ports. Auto MDI/MDI-X automatically determines the configuration of the
port on the end-node to which it is connected and then configures itself
appropriately. For example, if a port on a switch is connected to a port on a
bridge, which is typically wired as MDI, the port on the switch automatically
configures itself as MDI-X. This feature allows you to use a straight-through or
a crossover cable when connecting end-nodes to the switch.
Auto-negotiation
Auto-negotiation determines the duplex mode of the ports. The duplex mode
refers to the manner in which an end-node sends and receives data on the
network. Depending on its capabilities, an end-node can operate in either half-
or full-duplex mode. An end-node operating in half-duplex can either send or
receive data, but not both at the same time. However, an end-node operating in
full-duplex can send and receive data simultaneously. The best network
performance is achieved when an end-node can operate in full-duplex mode.
The AT-FS716 Series and AT-FS724i switches can operate in either full- or
half-duplex mode.

AT-FS716 Series and AT-FS724i Installation Guide
5
Network Topologies
The AT-FS716 Series and AT-FS724i switches can be used in a variety of
network topologies, such as a power workgroup or cascade. Both topologies are
described below.
Power Workgroup Topology
A power workgroup topology, shown in Figure 3, allows each end-node to
directly connect to a 10/100Base-TX port on an AT-FS716 switch. This gives
each end-node a dedicated 10 Mbps or 100 Mbps link.
Figure 3 Power Workgroup Topology
Workstations
Workstations Server
AT-FS716
10 Mbps
100 Mbps

Overview
6
Cascade Topology
Connecting two similar networking devices together is called ‘cascading’.
Figure 4 illustrates this topology where Port 24 on the AT-FS724i switch is
connected to Port 8 on the AT-FS716 switch. Since Port 24 is wired as auto
MDI/MDI-X, a crossover or straight-through Category 5 or better twisted pair
cable can be used.
Figure 4 Cascade Topology
Workstations
AT-FS724i
Workstations Server
AT-FS716
100 m (328 ft)
10 Mbps
100 Mbps

7
Chapter 2
Installation
Verifying the Package Contents
Make sure the following items are included in your package. If any item is
missing or damaged, contact your Allied Telesyn sales representative for
assistance.
❑One AT-FS716, AT-FS716E, or AT-FS724i Fast Ethernet Switch
❑Four protective feet (for desktop use only)
❑This installation guide
❑Warranty card
For AT-FS716E:
❑External power adapter
For AT-FS716 and AT-FS724i:
❑An AC power cord
❑Rackmounting kit

Installation
8
Planning the Installation
Be sure to observe the following guidelines when planning the installation of
your switch.
❑The end-nodes connected to the twisted pair port can operated at
either 10 Mbps or 100 Mbps and half- or full-duplex mode.
❑The end-node connected to a port on the switch can be a network
adapter card, repeater, router, hub, or another switch.
❑Refer to Table 3 for the cabling specifications for the twisted pair
ports.
Table 3 10/100Base-TX Twisted Pair Port Cabling Specifications
Selecting a Site
Be sure to observe the following guidelines when selecting a site for your
switch.
❑Select a site that is dust-free and moisture-free.
❑Select a site that will allow you to easily access the switch’s power and
data cables.
❑The twisted pair port cabling must be kept away from sources of
electrical noise, such as radios, transmitters, power lines, broadband
amplifiers electrical motors, and fluorescent fixtures.
❑Make sure the air flow around the switch and through its vents on the
side and back are not restricted.
❑Use dedicated power circuits or power conditioners to supply reliable
power to the switch.
Operating Mode Twisted Pair Cable MaximumOperating
Distance
10Base-T Shielded or unshielded Category 3 or better 100 m (328 ft)
100Base-TX Shielded or unshielded Category 5 or better 100 m (328 ft)