Allied Telesis AT-FS709FC User manual

AT-FS709FC
10/100 Mbps Ethernet Switch
Installation Guide
PN 613-10817-00 Rev B

Copyright  2001 Allied Telesyn International, Corp.
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 International, Corp.
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 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 Compliance
Statement
Standards: This product meets the following standards.
RFI Emission FCC Part 15 (Class B), EN55022 (Class B)
 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 EN50082-1
 3
Electrical Safety UL 1950 (UL/cUL), EN60950 (TUV), EN60825
 4
Important: Appendix A contains translated safety statements for installing this equipment. When you see
the
 , go to Appendix A for the translated safety statement in your language.
Wichtig: Anhang A enthält übersetzte Sicherheitshinweise für die Installation dieses Geräts. Wenn Sie

sehen, schlagen Sie in Anhang A den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Tillæg A indeholder oversatte sikkerhedsadvarsler, der vedrører installation af dette udstyr. Når
De ser symbolet
 , skal De slå op i tillæg A og finde de oversatte sikkerhedsadvarsler i Deres eget sprog.
U.S. Federal Communications Commission
DECLARATION OF CONFORMITY
Manufacture Name: Allied Telesyn International
Manufacture Address: 960 Stewart Drive, Suite B
Sunnyvale, CA 94086 USA
Manufacture Telephone: [phone]
Declares that the product: Fast Ethernet Switch
Model Number: AT-FS709FC
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.

iv
Belangrijk: Appendix A bevat vertaalde veiligheidsopmerkingen voor het installeren van deze apparatuur.
Wanneer u de
 ziet, raadpleeg Appendix A voor vertaalde veiligheidsinstructies in uw taal.
Important: L'annexe A contient les instructions de sécuritérelatives àl'installation de cet équipement.
Lorsque vous voyez le symbole
 , reportez-vous àl'annexe A pour consulter la traduction de ces
instructions dans votre langue.
Tärkeää: Liite A sisältää tämän laitteen asentamiseen liittyvät käännetyt turvaohjeet. Kun näet
 -
symbolin, katso käännettyäturvaohjetta liitteestäA.
Importante: l’Appendice A contiene avvisi di sicurezza tradottiper l’installazione di questa apparecchiatura.
Il simbolo
 , indica di consultare l’Appendice A per l’avviso di sicurezza nella propria lingua.
Viktig: Tillegg A inneholder oversatt sikkerhetsinformasjon for installering av dette utstyret. Når du ser
 , åpner du til Tillegg A for åfinne den oversatte sikkerhetsinformasjonen påønsket språk.
Importante: O Anexo A contém advertências de segurança traduzidas para instalar este equipamento.
Quando vir o símbolo
 , leia a advertência de segurança traduzida no seu idioma no Anexo A.
Importante: El Apéndice A contiene mensajes de seguridad traducidos para la instalación de este equipo.
Cuando vea el símbolo
 , vaya al Apéndice A para ver el mensaje de seguridad traducido a su idioma.
Obs! Bilaga A innehåller översatta säkerhetsmeddelanden avseende installationen av denna utrustning.
När du ser
 , skall du gåtill Bilaga A för att läsa det översatta säkerhetsmeddelandet påditt språk.

v
Table of Contents
Electrical Safety and Emission Compliance Statement .......................iii
Welcome to Allied Telesyn ..........................................................................vii
Where to Find Web-based Guides ...................................................................vii
Document Conventions .................................................................................... vii
Contacting Allied Telesyn ...............................................................................viii
Online Support .........................................................................................viii
Telephone and Fax Support.....................................................................viii
E-mail Support ........................................................................................... ix
Returning Products ........................................................................................... ix
FTP Server.......................................................................................................... x
For Sales or Corporate Information .................................................................. x
Tell Us What You Think .................................................................................... x
Chapter 1
Overview ............................................................................................................1
10/100 Mbps Twisted Pair Ports........................................................................ 3
Type of Connector........................................................................................ 3
Speed............................................................................................................ 3
Duplex Mode................................................................................................ 3
Cabling......................................................................................................... 3
Maximum Distance ..................................................................................... 4
Ports 1X to 7X — MDI-X Configuration..................................................... 4
Port 8MDI and Port 8MDI-X ...................................................................... 4
100 Mbps Fiber Optic Port................................................................................. 5
Type of Connector........................................................................................ 5
Speed............................................................................................................ 5
Duplex Mode................................................................................................ 5
Cabling......................................................................................................... 5
Maximum Distance ..................................................................................... 6
Introduction to Ethernet Switching .................................................................. 7
MAC Address Table..................................................................................... 7
Store and Forward....................................................................................... 8
Duplex Mode................................................................................................ 8
Flow Control ................................................................................................ 9
System LEDs .................................................................................................... 10
Network Topologies .......................................................................................... 11

vi
Chapter 2
Installing the Switch .................................................................................... 15
Reviewing Safety Guidelines ........................................................................... 15
Verifying the Package Contents ...................................................................... 16
Selecting a Site for the Switch .........................................................................17
Twisted Pair Cable and Fiber Optic Cable Guidelines...................................17
Installing the Switch ........................................................................................18
Verifying and Troubleshooting the Installation.............................................. 20
Warranty Registration ..................................................................................... 21
Technical Specifications ...................................................................................21
Appendix A
Translated Electrical Safety Emission Information............................. 23
Appendix B
Technical Support Fax Order .................................................................... 33
Incident Summary ............................................................................................33
Appendix C
AT-FS709FC Installation Guide Feedback.............................................. 35

vii
The guide contains instructions on how to install the AT-FS709FC Series Fast
Ethernet Switch.
Where to Find Web-based Guides
The Allied Telesyn web site at www.alliedtelesyn.com contains the most
recent documentation for all of our products. All product guides can be
downloaded from the web site in PDF format.
Document Conventions
This guide uses several conventions that you should become familiar with
before you begin to install the product.
Note
A note provides additional information.
Caution
A caution indicates that performing or omitting a specific action may
result in equipment damage or loss of data.
Warning
A warning indicates that performing or omitting a specific action may
result in bodily injury.
Welcome to Allied Telesyn

viii
Contacting Allied Telesyn
You can contact Allied Telesyn technical support by telephone, fax, or e-mail.
You can also contact technical support online through our web site.
Online Support
You can request technical support online by filling out the Online Technical
Support Form at www.alliedtelesyn.com/support/supportf.asp or by
accessing the Technical Support Knowledge Base from the Allied Telesyn
North American web site. The Knowledge Base allows you to submit questions
to our technical staff and review answers to previously asked questions.
Telephone and Fax Support
Listed below are the telephone and fax numbers for contacting Allied Telesyn
Technical Support. On page 33 of this manual is the Technical Support Fax
Order form. You should fill out this form and fax it to the appropriate number
below when requesting technical assistance.
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
Australia, New Zealand
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-FS709FC Series Installation Guide
ix
E-mail Support
United States and Canada
[e-mail]
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:
❑United States and Canada
Toll-free: 1-800-428-4835, option 4
Fax: [phone]
❑Europe, Africa, and Middle East
Tel: [phone]
Fax: [phone]
❑Latin America, Caribbean, and Virgin Islands
Tel: International code + 425-481-3852
Fax: International code + 425-481-3895
❑Puerto Rico
Tel: [phone], ext. 3852 or
Tel: [phone], ext. 3852
❑Mexico
Tel: [phone], ext. 3852
Fax: International code + 425-481-3895
❑Asia and Southeast Asia
Tel: [phone]
Fax: [phone]
❑Australia
Tel: [phone]
Fax: [phone]

x
❑New Zealand
Tel: [phone]
FTP Server
If you need a new version of management software for an Allied Telesyn
managed device, you can download the software by connecting directly to our
FTP server at ftp.alliedtelesyn.com/pubs. At login, enter ‘anonymous’as
the username and your e-mail address as the password.
For Sales or Corporate Information
Tell Us What You Think
If you have any comments or suggestions on how we might improve this or
other Allied Telesyn documents, fill out the “AT-FS709FC Installation Guide
Feedback”on page 35 and return the form to us at the address or fax number
provided. You can also provide feedback online by filling out the Send Us
Feedback form at www.alliedtelesyn.com/contact/feedbackf.asp.
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 94085
Tel: [phone] (USA and Canada)
Fax: [phone]

1
Chapter 1
Overview
The AT-FS709FC Series device is an unmanaged, Layer 2 Fast Ethernet
switch. The switch can be used in a variety of network configurations and
topologies. You can use the switch to create small workgroups with dedicated
10/100 Mbps links to your network devices, such as your workstations,
servers, printers, and routers. You can also use the switch to interconnect
Ethernet hubs to provide a bridge between the different workgroups of your
network. Finally, you can connect the switch to other Ethernet switches to
make it part of a larger Ethernet network.
Figure 1 AT-FS709FC Series Fast Ethernet Switch
Features of the switch include:
G Eight 10/100 Mbps (10Base-T / 100Base-TX) twisted pair ports with
RJ-45 connectors
G One 100 Mbps fiber optic port with a maximum operating distance of
2 kilometers (1.25 miles)
G Full- or half-duplex operation on the twisted pair ports
G Full-duplex operation on the fiber optic ports
G Store and forward Ethernet packet handling
G MAC address table with a storage capacity of 4,000 addresses
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
1X 8MDI
OR
2X 3X 4X 5X 6X 7X
9
8MDI-X
POWER
LINK/ACT
100M
FDX
123456789
FS709FC
MULTIMODE

2
The AT-FS709FC Series Fast Ethernet Switch is easy to install and requires
no software management.
The AT-FS709FC Series Fast Ethernet Switch is available with a variety of
fiber optic connectors. For a complete list of the available models, contact your
Allied Telesyn sales representative.
Figure 2 illustrates the AT-FS709FC Series Fast Ethernet Switch.
Figure 2 AT-FS709FC Series Fast Ethernet Switch
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
1X 8MDI
OR
2X 3X 4X 5X 6X 7X
9
8MDI-X
POWER
LINK/ACT
100M
FDX
123456789
FS709FC
100-240V 50-60Hz 0.3A
10Base-T/100Base-TX 100Base-FX
Fiber Optic
System and
Port LEDs Twisted Pair Ports
Port
AC Power
Connector

AT-FS709FC Series Installation Guide
3
10/100 Mbps Twisted Pair Ports
The twisted pair ports on the switch are labelled 1X through 7X, 8MDI-X and
8MDI. The features of the twisted pair ports are explained in the following
sections.
Type of Connector
The twisted pair ports have RJ-45 connectors.
Speed
These ports are compliant with the 10Base-T and 100Base-TX standards and
are capable of either 10 Mbps or 100 Mbps operation. The ports are IEEE
802.3u Auto-negotiation-compliant, meaning the speed for each port is set
automatically by the switch after determining the speed of the end node
connected to the port. Auto-negotiation is designed to ensure that each port on
the switch and each end node are operating at the same speed and that they
are communicating at the highest possible common speed of the devices.
Duplex Mode
The twisted pair ports can operate in either half- or full-duplex operation. Just
as with speed, the ports use Auto-negotiation to set the duplex mode. If the
end node is capable of full-duplex mode, the port is set to full-duplex. If the
end node is capable of only half-duplex, the port is set to half-duplex. For an
explanation of duplex mode, refer to the section “Duplex Mode”on page 8.
Cabling
The RJ-45 ports on the switch can use shielded or unshielded twisted pair
cable. The categories of twisted pair cabling used in Ethernet networks are
Category 3, 4, and 5. The main difference between the categories relates to
their attenuation, which is a measurement of signal loss over the length of the
cable. All cables experience attenuation, where the signal loses strength the
longer the cable. The lower the loss of signal, the lower the attenuation.
Of the three categories, Category 3 has the highest attenuation, meaning that
it has the highest signal loss. It is adequate for 10 Mbps operation, but should
never be used for 100 Mbps network operations. The higher speed requires
Category 5. If you are installing a new network with end nodes operating at 10
Mbps, it is recommended that you install Category 5 instead of Category 3.
This will save you the trouble of having to install new twisted pair cabling
should you later upgrade your end nodes to 100 Mbps.

4
Maximum Distance
The maximum distance of a twisted pair cable is 100 meters (328 feet). Cable
lengths that exceed this limit can result in poor or erratic network
performance.
Ports 1X to 7X —MDI-X Configuration
An RJ-45 twisted pair port on a 10 Mbps or 100 Mbps Ethernet network
device can be wired as either MDI or MDI-X. Twisted pair ports on personal
computers, routers, and bridges are typically wired as MDI. Twisted pair
ports on switches and hubs are usually MDI-X.
When connecting two network devices together, you need to use straight-
through twisted pair cabling when connecting two dissimilar ports together,
such as an MDI port to an MDI-X port. To connect two similar ports together,
such as an MDI port to an MDI port, you use a crossover twisted pair cable.
Ports 1X through 7X on the AT-FS709FC are configured as MDI-X. This
means that if you are connecting a computer, router, or bridge to one of these
ports, you probably need to use a straight-through twisted pair cable.
If you decide to connect another Ethernet switch to one of these ports, or a
hub, then you will probably need to use a crossover cable.
Port 8MDI and Port 8MDI-X
There are two Port 8s. One port is configured as MDI and the other as MDI-X.
To connect a switch or hub to Port 8, connect it to Port 8MDI. When
connecting a workstation or server to Port 8, use Port 8MDI-X.
Note
You can use either Port 8MDI or Port 8MDI-X. You cannot use both
ports at the same time.

AT-FS709FC Series Installation Guide
5
100 Mbps Fiber Optic Port
The AT-FS709FC Series switch features one fiber optic port. You can use the
fiber optic port to connect the switch to another switch or other end node over
large distances.
Type of Connector
The AT-FS709FC Series switches come with a variety of fiber optic
connectors. Contact your Allied Telesyn International sales representative for
a list of available connector types.
Speed
The fiber optic port is compliant with the 100Base-FX standard and has a
fixed operating speed of 100 Mbps. This speed cannot be changed; the end
node that you connect to the fiber optic port on the switch must also be able to
operate at 100 Mbps.
Duplex Mode
The fiber optic port is able to operate in full-duplex mode only. The end node
that you connect to this port must also be capable of full-duplex operation. For
an explanation of duplex mode, refer to “Duplex Mode”on page 8.
Cabling
There are two basic types of fiber optic cabling used in Ethernet networks:
multimode fiber and single-mode fiber. Multimode fiber is for shorter
distances, typically not more than 2 kilometers (1.25 miles). Single-mode is for
longer distances. The fiber optic port on the Ethernet switch has a maximum
operating distance of 2 kilometers (1.25 miles) and is designed to be used with
either 54/125 or 60/125 micron core/cladding multimode cable.
Note
Do not use single-mode fiber optic cable with the fiber optic port on the
AT-FS709FC switch.

6
Maximum Distance
The maximum operating distance of the fiber optic port on the AT-FS709FC
Series Ethernet switch is 2 kilometers (1.25 miles). Cable lengths that exceed
this limit can result in poor or erratic network performance.
Note
The fiber optic port on the network device that you intend to connect to
the AT-FS709FC Series Ethernet switch must have the same operating
characteristics as the fiber optic port on the switch. For example, the
maximum operating distance and operating wavelength of the end
node’s fiber optic port should be the same as the switch’s fiber optic port.
For the technical specifications of the fiber optic port on the switch, refer
to “Technical Specifications”on page 21.

AT-FS709FC Series Installation Guide
7
Introduction to Ethernet Switching
An Ethernet switch is designed to manage the flow of data between the
various devices that are connected to its ports.
MAC Address Table
The heart of an Ethernet switch is the Media Access Control (MAC) address
table. Every device that you attach to an Ethernet network has a MAC
address. This address is assigned to the device by the device’s manufacturer.
For example, every Network Interface Card (NIC) that you install into your
network computers has a MAC address that was assigned to it by the card’s
manufacturer.
A switch’s MAC address table is a list of the MAC addresses of the devices
that are connected to its ports. The switch uses this table to direct data frames
to their appropriate destination end nodes, and in some cases, to discard
frames that it receives. The switch creates the MAC address table by
examining the data frames that it receives on its ports. Each frame is
examined for its source address: that is, the MAC address of the end node that
sent the frame. The switch checks to determine whether the address is
already in its MAC address table. If it is not, the switch adds the address to
the table along with the port number on which the frame was received. The
result is a table that contains a list of all the MAC addresses of end nodes that
have sent frames through the switch and the ports on the switch to which the
end nodes are connected.
The switch also checks the destination MAC address of each frame it receives.
The destination address is the MAC address of the end node to which the
frame is intended. If the address is in the table, the switch directs the frame
directly to the port where the end node is located. This helps to ensure that
end nodes will only receive traffic that is intended for them and not have to
deal with traffic intended for other end nodes.
If the destination address is not in the MAC address table, the switch
broadcasts the frame to all switch ports. When the destination node responds,
the switch will be able to match the address to a port so that the next time a
frame is destined to that particular end node, the switch will be able to
forward the frame to the correct port instead of having to broadcast the frame
to all ports.
In some cases, a switch will even discard a frame. If the switch receives a
frame that is destined to a node on the same port on which the frame was
received, the switch discards it.

8
The MAC address table in the AT-FS709FC Series Ethernet switch can store
up to 4,000 MAC addresses. To prevent the table from becoming filled with
addresses of end nodes that are no longer active, the switch has a MAC
address aging timer. This timer will delete a MAC address from the table if it
does not see a frame from the end node with that address on any port after
five minutes (300 seconds). The aging timer also helps to ensure that the table
is correct should an end node be moved from one port on the switch to another
port.
Store and Forward
The Ethernet switch uses store and forward as the method for receiving and
transmitting frames. When a Ethernet frame is received on a switch port, the
switch does not retransmit the frame out the destination port until it has
received the entire frame and stored the frame in its memory buffer. It then
examines the frame to determine if it is a valid frame. Invalid frames, such as
fragments, are discarded by the switch. In this manner, the switch ensures
that only valid frames are transmitted out its ports and that damaged frames
are not propagated on your network.
Duplex Mode
Duplex mode determines the method by which an end node receives and
transmits of data. If an end node can receive or transmit data, but not both at
the same time, the end node is operating in what is referred to as half-duplex
mode. If an end node can both receive and transmit data simultaneously, the
node is operating in full-duplex mode. Naturally, a node capable of operating
in full-duplex can handle data much faster than a node that can only operate
in half-duplex.
Each twisted pair port on an AT-FS709FC Series switch can operate in either
half- or full-duplex mode. The twisted pair ports are IEEE 802.3u-compliant
and will Auto-negotiate the duplex mode setting. If the end node connected to
a twisted pair port on the switch is capable of full-duplex operation, the switch
sets the twisted pair port to full-duplex. If the end node is capable of only half-
duplex, the port is set automatically to half-duplex.
The duplex mode for the fiber optic port is set to full-duplex. This cannot be
changed. The end node that you connect to the fiber optic port must be capable
of full-duplex operation.

AT-FS709FC Series Installation Guide
9
Flow Control
In order for an Ethernet switch to maintain the orderly movement of data
between the end nodes that are connected to its ports, it will occasionally need
to signal an end node to stop sending data. This can occur under several
situations. For example, when two end nodes are operating at different
speeds, the switch, while transferring data between the nodes, might need to
instruct the faster end node to stop transmitting data to allow the slower end
node to catch up. An example of this situation would be when a server
operating at 100 Mbps is sending data to a workstation operating at only 10
Mbps.
Another situation when a switch might need to stop the transmission of data
from an end node is if two end nodes are vying for the same switch port at the
same time. An example of this would be if two workstations were attempting
to send data to the same network printer simultaneously. The switch could
allow only one workstation to send data out the port to the printer, and it
would need to instruct the other workstation to delay data transmission.
To some degree, these conflicts are minimized by the switch’s port buffers.
These buffers are used to store data when a port is either already busy
transmitting other data or when a transmitting port on a switch is operating
at a slower speed than the port on the switch receiving data.
How a switch signals an end node to stop transmitting data differs depending
on the speed and duplex mode of the end node and switch port. A twisted pair
port operating at 100 Mbps port and half-duplex mode stops an end node from
transmitting data by forcing a collision. A collision on an Ethernet network
occurs when two nodes attempt to transmit data using the same data link at
the same time. A collision causes end nodes to stop sending data. When the
switch needs to stop a 100 Mbps, half-duplex end node from transmitting
data, it forces a collision on the data link, which stops the end node. Once the
switch is ready to receive data again, the switch stops forcing collisions.
A twisted pair port or fiber optic port operating at 100 Mbps and full-duplex
mode uses PAUSE frames, as specified in the IEEE 802.3x standard.
Whenever the switch wants an end node to stop transmitting data, it issues a
this frame. The frame simply instructs the end node to cease transmission.
The switch continues to issue PAUSE frames until it is ready to again receive
data from the end node.

10
System LEDs
The switch has a series of LEDs that you can use to determine the operating
status of the system and the ports. The LEDs are described in Table 1.
Table 1 System and Port LEDs
LED Color Function
POWER Steady Green The switch is receiving power.
LINK/ACT Steady Green The twisted pair or fiber optic port has
established a valid link with the end node
connected to the port.
Blinking Green The switch is detecting activity on the twisted
pair or fiber optic port.
OFF The twisted pair or fiber optic port has not
established a link with the end node.
100M Steady Green The twisted pair port or fiber optic port is oper-
ating at 100 Mbps.
OFF The twisted pair port is operating at 10 Mbps.
(The fiber optic port cannot operate at 10
Mbps).
FDX Steady Green The twisted pair port or the fiber optic port is
operating in full-duplex mode.
OFF The twisted pair port is operating in half-
duplex. (The fiber optic port cannot operate in
half-duplex mode.)