3Com DUA1647-7AAA01 User Manual

SuperStack® 3 Baseline 8 Port Gigabit Switch
10BASE-T/100BASE-TX/1000BASE-T (3C16477) User Guide

DUA1647-7AAA01

1

4

5

8

INTRODUCTION

The SuperStack® 3 Baseline 8 Port Gigabit Switch is a versatile,
easy-to-use switch. It is ideal for users who want the high-speed
performance of 10/100/1000 switching but do not need
sophisticated management capabilities. The Baseline 8 Port
Gigabit Switch is shipped ready for use. No configuration is
necessary.

The Baseline 8 Port Gigabit Switch can be rack-mounted or free
standing.

The Baseline 8 Port Gigabit Switch includes:

 One power cord
 One mounting kit
 Four standard height, self-adhesive rubber pads

The Switch is powered from the AC mains supply.

The Baseline 8 Port Gigabit Switch provides high performance
switched connections to 10 Mbps, 100 Mbps, and 1000 Mbps
hubs, switches, servers and workstations that need a dedicated
switched link. The following figure illustrates one possible
configuration. The Baseline 8 Port Gigabit Switch has 8 shielded
RJ-45, 10/100/1000 Mbps auto-negotiating ports on the front
panel. Each 10/100/1000 Mbps port automatically determines
the speed, duplex mode, and MDIX mode of the connected
equipment and provides a suitable switched connection. The
10/100 Mbps connections on these 1000BASE-T ports operate in
half or full duplex mode while the 1000 Mbps connections
operate in full duplex mode.

The Baseline 8 Port Gigabit Switch supports a maximum of 8192
MAC adddresses.

Baseline Dual Speed Hub
with 10/100 connection

Baseline 8 Port Gigabit Switch

Servers with
1000Mbps
connections

1000Mbps
connections

Baseline 10/100 Switch plus Gigabit

1

F

EATURES OF THE

1

B

ASELINE

8 P

ORT

G

IGABIT

S

WITCH

14

5

The numbers in this diagram refer to numbered sections in the
text.

5

Front Panel

1 8 RJ-45 10/100/1000 Ports

WARNING

sockets. They cannot be used as standard traditional
telephone sockets, or to connect the unit to a traditional
PBX or public telephone network. Only connect RJ-45
data connectors, network telephony systems, or network
telephones to these sockets. Either shielded or
unshielded data cables with shielded or unshielded jacks
can be connected to these data sockets.

AVERTISSEMENT: Les ports RJ-45. Ceux-ci sont

protégés par des prises de données. Ils ne peuvent pas
être utilisés comme prises de téléphone conventionnelles
standard, ni pour la connection de l’unité à un réseau
téléphonique central privé ou public. Raccorder
seulement connecteurs de données RJ-45, systèmes de
réseaux de téléphonie ou téléphones de réseaux à ces
prises. Il est possible de raccorder des câbles protégés ou
non protégés avec des jacks protégés ou non protégés à
ces prises de don.

WARNUNG: RJ-45-Porte. Diese Porte sind geschützte

Datensteckdosen. Sie dürfen weder wie normale
traditionelle Telefonsteckdosen noch für die Verbindung
der Einheit mit einem traditionellem privatem oder
öffentlichem Telefonnetzwerk gebraucht werden. Nur
RJ-45-Datenanscluße, Telefonnetzsysteme or
Netztelefone an diese Steckdosen anschließen. Entweder
geschützte oder ungeschützte Buchsen dürfen an diese
Datensteckdosen angeschlossen werden.

The Baseline 8 Port Gigabit Switch has 8 10/100/1000 Mbps
auto-negotiating ports. Each port automatically determines the
correct speed and duplex mode as one of the following:

 10BASE-T half duplex
 10BASE-T full duplex
 100BASE-TX half duplex
 100BASE-TX full duplex
 1000BASE-T full duplex

: RJ-45 ports. These are shielded RJ-45 data

8

2

3

CAUTION: The Baseline 8 Port Gigabit Switch supports
full duplex auto-negotiation. If the connected device

!

does not support auto-negotiation, the Switch will
operate in half duplex mode (only for 10BASE-T and
100BASE-TX). In such a configuration, you may notice
some degradation of network performance. 3Com
recommends that you use devices that are capable of
auto-negotiation (and that you ensure that
auto-negotiation is enabled, if it is a configurable
option).

All ports auto-sense an MDI/MDIX connection and can be used
to connect to either another switch port, server, or workstation
without additional configuration. Each port can be connected to
a device with a normal ‘straight through’ TP (twisted pair) cable
or a ‘cross-over’ TP cable.

Priority Queuing

The Switch offers priority queuing, which means all packets that
are received are examined to see if they have been priority
encoded. If a packet has been, then the Switch will read the
priority level and determine whether the packet should be
directed through the normal or high priority channel. This feature
can be useful for example during excessive loads when one type
of traffic may require priority over another. The Switch is
configured to comply with 802.1p, VLAN tagged frames.

Traffic prioritization ensures that high priority data is forwarded
through the Switch without being delayed by lower priority data.
It differentiates traffic into classes and prioritizes those classes
automatically. Traffic prioritization uses the multiple traffic queues
that are present in the hardware of the Switch to ensure that
high priority traffic is forwarded on a different queue from lower
priority traffic, and is given preference over that traffic. This
ensures that time-sensitive traffic gets the highest level of service.
The 802.1D standard specifies eight distinct levels of priority
(0 to 7), each of which relates to a particular type of traffic. The
priority levels and their traffic types are shown in the following
table.

4

2

Priority Level Traffic Typ e

0 Best Effort

1 Background

2 Standard (spare)

3 Excellent Effort (business critical)

4 Controlled Load (streaming multimedia)

5 Video (Interactive media), less than 100 milliseconds

latency and jitter.

6 Voice (Interactive voice), less than 10 milliseconds

latency and jitter.

7 Network Control Reserved traffic

Duplex Status LEDs

3

The second row of Status LEDs, which are colored yellow, show
the duplex status of the related ports:

Status Meaning

On Yellow The port is operating in full duplex mode.

Off The port is operating in half duplex mode.

1000BASE-T only operates in full duplex mode.
10BASE-T/100BASE-TX can be in half or full duplex
mode.

Power LED

4

The traffic prioritization feature supported by the Switch
is compatible with the relevant sections of the IEEE

802.1D standard (incorporating IEEE 802.1p).

2

Activity/Link/Speed Status LEDs

The top row of Status LEDs, labelled “Link/Activity,” show the
link and activity status of the related ports:

Status Meaning

On The link has been established.

Flashing Packets are being received or transmitted on the port.

Off If the link has not been established, either nothing is con-

Green The link is operating at 1000 Mbps.

Yellow The link is operating at 10 or 100 Mbps.

nected to the port, or there is a problem:

■ Check that the attached device is powered on.

■ Check that the cable is the correct type and is not faulty.

If these checks do not identify the cause of the problem, it
may be that the unit or the device connected to the port is
faulty. Contact your supplier for further advice.

INSTALLING THE SWITCH

Positioning the Switch

When deciding where to position the Baseline 8 Port Gigabit
Switch ensure:

 It is accessible and cables can be connected easily.
 Cabling is away from sources of electrical noise. These

include lift shafts, microwave ovens, and air conditioning
units. Electromagnetic fields can interfere with the signals on
copper cabling and introduce errors, therefore slowing down
your network.

 Water or moisture cannot enter the case of the unit.
 Air flow around the unit and through the vents in the side

of the case is not restricted (3Com recommends that you
provide a minimum of 25 mm (1 in.) clearance).

 The air is as free from dust as possible.
 Temperature operating limits are not likely to be exceeded. It

is recommended that the unit is installed in a clean, air
conditioned environment.

The Power LED shows the power status of the Switch:

Status Meaning

On Green The unit is powered on and ready for use.

Off ■ The unit is not receiving power:

■ Check that the power cord is connected correctly.

■ If the unit still does not operate, contact your supplier.

Rear Panel Connections

5 Power Supply

The Baseline 8 Port Gigabit Switch automatically adjusts to the
supply voltage. Only use the power cord that is supplied with the
unit.

Rack Mounting or Free Standing

This unit can be mounted in a 19-inch equipment rack using the
Mounting Kit. Refer to “Mounting Kit Instructions” on page 4. It
can also be free standing. Do not place objects on top of the
unit or stack.

The unit is supplied with four self-adhesive rubber pads. If the
unit is to be part of a free standing stack, apply the pads to each
marked corner area on the underside of the unit. Place the unit
on top of the lower unit, ensuring that the pads locate with the
recesses of the lower unit.

Do not apply the pads if you intend to rack mount the
unit.

CAUTION: If installing the Baseline 8 Port Gigabit Switch
in a free standing stack of different size SuperStack II or
SuperStack 3 units, the smaller units must be installed
above the larger ones. Do not build a free standing
stack of more than six units.

It is always good practice to wear an anti-static wrist
strap when installing network equipment, connected to
a ground point. If one is not available, try to keep in
contact with a grounded rack and avoid touching the
unit's ports and connectors, if possible. Static discharge
can cause reliability problems in your equipment.

3

Connecting to a Network Device

Follow these guidelines to connect a device to the Baseline 8
Port Gigabit Switch:

 Use Category 5 unshielded or shielded (screened) 100 Ohm

TP cable (or Category 3 cable for a 10 Mbps connection).

 The maximum length of cable for each connection is

100 m (328 ft).

 Connect one end of the cable to an RJ-45 port on the

Baseline 8 Port Gigabit Switch, and the other end to the
appropriate RJ-45 port on the connecting device.

Power Supply

Power problems can be the cause of serious failures and
downtime in your network. Ensure that the power input to your
system is clean and free from sags and surges to avoid
unforeseen network outages. 3Com recommends that you install
power conditioning, especially in areas prone to black outs,
power dips and electrical storms.

MOUNTING KIT INSTRUCTIONS

The unit is intended to be grounded. Ensure it is connected to
earth ground during normal use. Grounding the unit helps to
avoid damage from lightning and power surges.

Powering Up

Use the following sequence to power up the Baseline 8 Port
Gigabit Switch:

1 Check the network connections and cables.
2 Connect the power supply cable to the appropriate power

socket on the rear panel of the unit; see reference 5 in
“Features of the Baseline 8 Port Gigabit Switch.”

3 Connect the plug to the power supply outlet socket and

switch on the power supply at the socket.

When the switch is powered on, the Power LED lights green. If it
does not, see reference 4 in “Features of the Baseline 8 Port
Gigabit Switch.”

Introduction

The Baseline 8 Port Gigabit Switch is supplied with two
mounting brackets and four screws. These are used for rack
mounting the unit. When mounting the unit, you should take
note of the guidelines given in “Positioning the Switch” on
page 3.

Rack Mounting the Units

The Baseline 8 Port Gigabit Switch is 1U high and will fit a
standard 19-inch rack.

CAUTION: Disconnect all cables from the unit before
continuing. Remove the self-adhesive pads from the
underside of the unit, if already fitted.

1 Place the unit the right way up on a hard, flat surface with

the front facing towards you.

2 Locate a mounting bracket over the mounting holes on one

side of the unit (refer to the figure following step 6).

PROBLEM SOLVING

At frequent intervals you should visually check the Baseline 8
Port Gigabit Switch. Regular checks can give you an early
warning of a possible failure; any problems can then be attended
to when there will be least effect on users.

Check that all external cabling connections are secure and that
no cables are pulled taut.

Refer to the information about LEDs given earlier in this guide to
see if the problem can be identified and rectified. Here are some
common problems that can occur:

Activity Status LED not lit for a port that has a connection.
There is a problem with this connection. Check that:

 The device being connected to is powered on and operating

correctly.

 The cable is connected at both ends.
 You are using a TP cable that is not damaged.
 If the connection is to a workstation, that the workstation’s

network interface is installed and configured correctly.

3 Insert the two screws supplied in the mounting kit and fully

tighten with a suitable screwdriver.

4 Repeat the two previous steps for the other side of the unit. 5 Insert the unit into the 19-inch rack and secure with suitable

screws (not provided).

6 Reconnect all cables.

All Activity LEDs appear to be lit continually. There may be

broadcast storms on the network. Remove port connections one
at a time, waiting a few seconds between each port. If the LEDs
go off after removing a port connection, the device that was
connected to that port is introducing an excessive amount of
broadcast frames to the network (some pieces of network
equipment operate by sending out broadcast frames regularly).
Refer to the documentation that accompanies the device for
information on disabling the broadcast operation.

If the problem persists and the unit still does not operate
successfully, contact your supplier with the following information
before returning the unit:

 Product number and serial number (printed on a label sup-

plied with the unit)

 A brief description of the fault

4

SAFETY INFORMATION

Please read the following safety information carefully
before installing the Baseline 8 Port Gigabit Switch.

WARNING: Installation and removal of the unit must be carried out by

qualified personnel only.

 If installing the Switch unit in a stack with SuperStack II or SuperStack 3

Hub units, the Baseline 8 Port Gigabit Switch unit must be installed below
the narrower Hub units.

 The unit must be connected to an earthed (grounded) outlet to comply with

international safety standards.

 Do not connect the unit to an A.C. outlet (power supply) without an earth

(ground) connection.

 The appliance coupler (the connector to the unit and not the wall plug)

must have a configuration for mating with an EN 60320/IEC 320 appliance
inlet.

 The socket outlet must be near to the unit and easily accessible. You can

only remove power from the unit by disconnecting the power cord from the
outlet.

 This unit operates under SELV (Safety Extra Low Voltage) conditions

according to IEC 60950. The conditions are only maintained if the
equipment to which it is connected also operates under SELV conditions.

France and Peru only

This unit cannot be powered from IT
unit must be powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with

†

supplies. If your supplies are of IT type, this

the secondary connection point labelled Neutral, connected directly to earth
(ground).

†

Impédance à la terre

Power Cord Set

This must be approved for the country where it will be used. e.g.

U.S.A. and
Canada

Denmark

Switzerland
UK

Europe

■ The cord set must be UL-approved and CSA certified.

■ The minimum specifications for the flexible cord are:

No. 18 AWG
Type SV or SJ
3-conductor

■ The cord set must have a rated current capacity of at least

10 A.

■ The attachment plug must be an earth-grounding type with a

NEMA 5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V)
configuration.

■ The supply plug must comply with Section 107-2-D1, Standard

DK2-1a or DK2-5a.

■ The supply plug must comply with SEV/ASE 1011.

■ The supply plug must comply with BS1363 (3-pin 13-amp) and

be fitted with a 5 A fuse which complies with BS1362.

■ The mains cord must be <HAR> or <BASEC> marked and be

of type HO3VVF3GO.75 (minimum).

■ The supply plug must comply with CEE7/7 (“SCHUKO”)

■ The mains cord must be <HAR> or <BASEC> marked and be

of type HO3VVF3GO.75 (minimum).

L’INFORMATION DE SÉCURITÉ IMPORTANTE

Veuillez lire à fond l'information de la sécurité suivante
avant d'installer le Baseline 8 Port Gigabit Switch.

AVERTISSEMENT: L’installation et la dépose de ce groupe doivent être
confiés à un personnel qualifié.

 Si vous entassez l’unité Switch avec les unités SuperStack II Hub, l’unité

Baseline 8 Port Gigabit Switch doit être installée en dessous des unités Hub
plus étroites.

 Ne branchez pas votre appareil sur une prise secteur (alimentation

électrique) lorsqu'il n'y a pas de connexion de mise à la terre (mise à la
masse).

 Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la

masse) afin de respecter les normes internationales de sécurité.

 Le coupleur d’appareil (le connecteur du groupe et non pas la prise murale)

doit respecter une configuration qui permet un branchement sur une entrée
d’appareil EN 60320/IEC 320.

 La prise secteur doit se trouver à proximité de l’appareil et son accès doit

être facile. Vous ne pouvez mettre l’appareil hors circuit qu’en débranchant
son cordon électrique au niveau de cette prise.

 L’appareil fonctionne à une tension extrêmement basse de sécurité qui est

conforme à la norme IEC 60950. Ces conditions ne sont maintenues que si
l’équipement auquel il est raccordé fonctionne dans les mêmes conditions.

France et Pérou uniquement:

Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos
alimentations sont du type impédance à la terre, ce groupe doit être alimenté par
une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport
1:1, avec un point secondaire de connexion portant l’appellation Neutre et avec
raccordement direct à la terre (masse).

Cordon électrique

Il doit être agréé dans le pays d’utilisation.

Etats-Unis et
Canada:

Danemark:

Suisse:

Europe

■ Le cordon doit avoir reçu l’homologation des UL et un

certificat de la CSA.

■ Le cordon souple doit respecter, à titre minimum, les

spécifications suivantes:
calibre 18 AWG
type SV ou SJ
à 3 conducteurs

■ Le cordon doit être en mesure d’acheminer un courant

nominal d’au moins 10 A.

■ La prise femelle de branchement doit être du type à mise à la

terre (mise à la masse) et respecter la configuration NEMA
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V).

■ La prise mâle d’alimentation doit respecter la section 107-2 D1

de la norme DK2 1a ou DK2 5a.

■ La prise mâle d’alimentation doit respecter la norme SEV/ASE

1011.

■ La prise secteur doit être conforme aux normes CEE 7/7

(“SCHUKO”)

■ LE cordon secteur doit porter la mention <HAR> ou <BASEC>

et doit être de type HO3VVF3GO.75 (minimum).

WICHTIGE SICHERHEITSINFORMATIONEN

Bitte unbedingt vor dem Einbauen des Baseline 8 Port
Gigabit Switch Einheit die folgenden
Sicherheitsanweisungen durchlesen.

WARNUNG: Die Installation und der Ausbau des Geräts darf nur durch
Fachpersonal erfolgen.

 Wenn die Baseline 8 Port Gigabit Switch Einheit in einer Stapel mit anderen

SuperStack II Hub Einheiten eingebaut werden soll, muß die Baseline 8 Port Gigabit
Switch Einheit unter die schmaleren Hub Einheiten eingebaut werden.

 Das Gerät nicht an eine Wechselstromsteckdose anschließen, die nicht

geerdet ist.

 Das Gerät muß an eine geerdete Steckdose angeschlossen werden, die die

internationalen Sicherheitsnormen erfüllt.

 Der Gerätestecker (der Anschluß an das Gerät, nicht der

Wandsteckdosenstecker) muß eine passende Konfiguration für einen
Geräteeingang gemäß EN 60320/IEC 320 haben.

 Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein.

Die Stromversorgung des Geräts kann nur durch Herausziehen des
Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.

 Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen

(Sicherheitskleinstspannung) gemäß IEC 60950. Diese Bedingungen sind nur
gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter
SELV-Bedingungen betrieben werden.

Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden:

Schweiz

■ Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen

einhalten.

Europe ■ Das Netzkabel muß vom Typ HO3VVF3GO.75

(Mindestanforderung) sein und die Aufschrift <HAR> oder
<BASEC> tragen.

■ Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).

5

TECHNICAL INFORMATION

Related Standards

The SuperStack 3 Baseline 8 Port Gigabit Switch has been
designed to the following standards:

Functional ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast

Ethernet), IEEE 802.3ab (Gigabit Ethernet), IEEE 802.1D
(Bridging)

Safety UL 60950, EN 60950, CSA 22.2 #60950, IEC 60950
EMC Emissions EN 55022 Class A, FCC Part 15 Subpart B Class A,

ICES-003 Class A, VCCI Class A, AS/NZS 3548 Class A,
CNS 13438 Class A

Immunity EN 55024

Environmental

Operating Temperature 0–40 °C (32–104 °F)
Humidity 10–95% (non-condensing)

REGULATORY NOTICES

FCC Statement

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 the instructions, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference to radio communications, in which case the user will
be required to correct the interference at their own expense.

Information To The User

If this equipment does cause 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 the receiving antenna
 Relocate the equipment in relation to the receiver.
 Move the equipment away from the receiver.
 Plug the equipment into a different outlet so that equipment

and receiver are on different branch circuits.

Physical

Width 440 mm (17.3 in.)
Depth 173 mm (6.8 in.)
Height 43.6 mm (1.7 in.) or 1U
Weight 3 kg (6.6 lb)
Mounting Free standing, or 19-inch rack mounted using the

mounting kit supplied

Electrical

Power Inlet IEC 320
AC Line Frequency 47 to 63 Hz
Input Voltage 100–240 VAC
Current Rating 0.4 A at 115 V, 0.2 A at 230 V
Maximum Power

Consumption
Maximum Power

Dissipation

28 W

95.6 BTU/hr

CE Statement (Europe)

This product complies with the European Low Voltage Directive
73/23/EEC and EMC Directive 89/336/EEC as amended by
European Directive 93/68/EEC/.

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

CSA Statement

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.

VCCI Statement

BSMI Statement

If necessary, the user should consult the dealer or an experienced
radio/television technician for additional suggestions. The user
may find the following booklet prepared by the Federal
Communications Commission helpful:

How to Identify and Resolve Radio-TV Interference Problems

This booklet is available from the U.S. Government Printing
Office, Washington,

DC 20402, Stock No. 004-000-00345-4.

In order to meet FCC emissions limits, this equipment must be
used only with cables which comply with IEEE 802.3.

6

TECHNICAL SUPPORT

The following options are available for technical support:

 In the first instance contact your Network Supplier.
 Check the 3Com knowledgebase at

http://knowledgebase.3com.com

 Browse the 3Com web site on

http://www.3com.com

If you require additional assistance, contact your network

When you contact your network supplier for assistance, have the
following information ready:

 Product model name, part number, and serial number
 A list of system hardware and software, including revision

levels

 Diagnostic error messages
 Details about recent configuration changes, if applicable

supplier. Many suppliers are authorized 3Com service partners
who are qualified to provide a variety of services, including
network planning, installation, hardware maintenance,

If you are unable to contact your network supplier, see the
following section on how to contact 3Com.

application training, and support services.

Country Telephone Number Country Telephone Number Country Telephone Number

Asia, Pacific Rim

Australia
Hong Kong
India

Indonesia
Japan

Europe, Middle East and Africa

From anywhere in these
regions, call:

From the following countries, you may use the numbers shown:

Austria
Belgium (Flemish)
Belgium (French)
Denmark
Finland
France
Germany

Latin America

Antigua
Argentina
Aruba
Bahamas
Barbados
Belize
Bermuda
Bonaire
Brazil
Cayman

North America 1 800 876 3266

1 800 678 515
800 933 486
[phone] or
000800 650 1111
001 803 61009
00531 616 439 or
03 5977 7991

[phone]

01 7956 7124
070 700 000
070 700 770
7010 7289
01080 2783
0825 809 622
01805 404 747

1 800 988 2112
0 810 444 3COM
1 800 998 2112
1 800 998 2112
1 800 998 2112
52 5 201 0010
1 800 998 2112
1 800 998 2112
0800 13 3COM
1 800 998 2112

Malaysia
New Zealand
Pakistan
Philippines

P.R. of China

Hungary
Ireland
Israel
Italy
Luxembourg
Netherlands
Norway

Chile
Colombia
Costa Rica
Curacao
Ecuador
Dominican Republic
Guatemala
Haiti
Honduras
Jamiaca
Martinique

1800 801 777
0800 446 398
[phone]
1235 61 266 2602 or
[phone]
10800 61 00137 or
021 6350 1590 or
00800 0638 3266

06800 14466
1800 509359
1800 943 2632
199 161346
800 29880
0900 777 7737
815 33 047

AT&T [phone]
AT&T [phone]
AT&T [phone]
1 800 998 2112
AT&T [phone]
AT&T [phone]
AT&T [phone]
57 1 657 0888
AT&T [phone]
1 800 998 2112
571 657 0888

Singapore
S. Korea

Taiwan
Thailand

Poland
Portugal
South Africa
Spain
Sweden
Switzerland
U.K.

Mexico
Nicaragua
Panama
Paraguay
Peru
Puerto Rico
Salvador
Trinidad and Tobago
Uruguay
Venezuela
Virgin Islands

800 6161 463
00798 611 2230 or
02 3455 6455
00801 611 261
001 800 611 2000

00800 441 1357
707 200 123
0800 991196
9 021 60455
07711 14453
08488 50112
0870 241 3901

01 800 849CARE
AT&T [phone]
AT&T [phone]
54 11 4894 1888
AT&T [phone]
1 800 998 2112
AT&T [phone]
1 800 998 2112
AT&T [phone]
AT&T [phone]
57 1 657 0888

7

LEGAL NOTICES

© 3Com Technologies, 2002. All rights reserved. No part of this

documentation may be reproduced in any form or by any means or used
to make any derivative work (such as translation, transformation, or
adaptation) without permission from 3Com Technologies.

3Com Technologies reserves the right to revise this documentation and
to make changes in content from time to time without obligation on the
part of 3Com Technologies to provide notification of such revision or
change.

3Com Technologies provides this documentation without warranty of any
kind, either implied or expressed, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose.
3Com may make improvements or changes in the product(s) and/or the
program(s) described in this documentation at any time.

UNITED STATES GOVERNMENT LEGENDS:

If you are a United States government agency, then this documentation
and the software described herein are provided to you subject to the
following restricted rights:

For units of the Department of Defense:

Restricted Rights Legend: Use, duplication or disclosure by the
Government is subject to restrictions as set forth in subparagraph (c) (1)
(ii) for restricted Rights in Technical Data and Computer Software clause
at 48 C.F.R. 52.227-7013. 3Com Centre, Boundary Way, Maylands Park
South, Hemel Hempstead, Herts, HP2 7YU, U.K.

ENVIRONMENTAL STATEMENTS

General Environmental Statement

It is the policy of 3Com Corporation to be environmentally-friendly in all
operations. To uphold our policy, we are committed to:

 Establishing environmental performance standards that comply

with national legislation and regulations

 Conserving energy, materials and natural resources in all

operations

 Reducing the waste generated by all operations
 Ensuring that all waste conforms to recognized environmental

standards

 Maximizing the recyclable and reusable content of all products
 Ensuring that all products can be recycled, reused and disposed

of safely

 Ensuring that all products are labelled according to recognized

environmental standards

 Improving our environmental record on a continual basis

For civilian agencies:

Restricted Rights Legend: Use, reproduction or disclosure is subject to
restrictions set forth in subparagraph (a) through (d) of the Commercial
Computer Software - Restricted Rights Clause at 48 C.F.R. 52.227-19 and
the limitations set forth in 3Com Corporation’s standard commercial
agreement for the software. Unpublished rights reserved under the
copyright laws of the United States.

If there is any software on removable media described in this
documentation, it is furnished under a license agreement included with
the product as a separate document, in the hard copy documentation, or
on the removable media in a directory file named LICENSE.TXT. If you are
unable to locate a copy, please contact 3Com and a copy will be
provided to you.

Unless otherwise indicated, 3Com registered trademarks are registered in
the United States and may or may not be registered in other countries.

3Com and SuperStack are registered trademarks of 3Com Corporation.
Other brand and product names may be registered trademarks or

trademarks of their respective holders.

End Of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of
all end-of-life electronic components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting
material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from
sustainable, managed forests; it is fully biodegradeable and recyclable,
and is completely chlorine-free. The varnish is environmentally-friendly,
and the inks are vegetable-based with a low heavy-metal content.

Product Registration

You can now register your SuperStack 3 Baseline 8 Port Gigabit Switch on the 3Com web site:

http://support.3com.com/registration/frontpg.pl

Documentation Feedback

Your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mail comments about
this document to 3Com at:

[e-mail]

Please include the following information when commenting: the document title, part number (shown at the bottom of this page), and
page number, if appropriate.

8

Part Number: DUA1647-7AAA01
Published: August 2002