3com 3C16465C, 3C16464C User Manual

SuperStack® 3 Baseline 10/100 Switch 12-Port (3C16464C) and
24-Port (3C16465C) User Guide

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INTRODUCTION

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

The Baseline 10/100 Switch has 12 or 24 shielded RJ-45, 10/100
Mbps auto-negotiating ports on the front panel. Each port
automatically determines the speed and duplex mode of the
connected equipment and provides a suitable switched
connection. Each port also provides Auto MDIX.

The Baseline 10/100 Switch is suited for office use where it can
be free standing, or rack mounted (in a wiring closet or
equipment room).

The Baseline 10/100 Switch comes with:

!

One power cord for use with the Baseline 10/100 Switch

!

Four self-adhesive rubber pads

!

One mounting kit

The Switch can be powered either from the AC mains supply, or
through an optional 3Com SuperStack 3 Advanced Redundant
Power System (3C16071B). Contact your supplier for details.

The diagram below shows an example configuration:

The Baseline 10/100 Switch provides high performance switched
connections to 10 Mbps and 100 Mbps hubs, servers and
workstations that require a dedicated switched link.

1

HOW TO USE THE BASELINE 10/100 SWITCH

f you connect two Baseline 10/100 Switch units together,

Numbered elements in this diagram refer to numbered sections in
the text. A 24-port unit is shown.

Front Panel

1

24 RJ-45 10/100 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.

10BASE-T/100BASE-TX Ports

The Baseline 10/100 Switch has 12 (3C16464C) or 24
(3C16465C) 10/100 Mbps auto-negotiating ports.

To connect a device to the Baseline 10/100 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
100m (328ft). Connect one end of the cable to an RJ-45
port on the Baseline 10/100 Switch, and the other end to
the appropriate RJ-45 port on the connecting device.

Each port on the Baseline 10/100 Switch is
auto-negotiating: its speed and duplex mode (half duplex
or full duplex) are automatically determined by the
capabilities of the connected device.

Each port is Auto MDIX and can be connected to either a
10BASE-T or a 100BASE-TX device.

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

2

The first (top) and third row of LEDs, which are colored yellow,
show the activity or duplex status of the related ports:

!

!

3

The second and fourth (bottom) row of Status LEDs, which are
colored green, show the link or speed status of the related ports:

!

I

the link between them operates at 100Mbps full duplex.
You must use Category 5 cable when connecting the
units.

CAUTION: The Baseline 10/100 Switch supports full
duplex auto-negotiation. If the connected device does not

!

support auto-negotiation, the Switch will operate in half
duplex mode (even if the device is operating in full duplex
mode). 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).

Activity/Duplex Status LEDs

When the Display Function switch is out (its normal position),
these LEDs show the activity of each port. The LED flashes
when packets are received or transmitted on the port.

When the Display Function switch is pressed in, these LEDs
show the duplex status of each port:

Status Meaning

Ye llo w The port is operating in full duplex mode.

Off If the link is established, the port is operating in half duplex

mode.

Link/Speed Status LEDs

When the Display Function switch is out (its normal position),
these LEDs show the link status of each port:

Status Meaning

Green The link has been established and the segment attached to

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

the port is functional.

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.

2

!

When the Display Function switch is pressed in, these LEDs
show the speed status of each port:

Status Meaning

Green The link is operating at 100 Mbps.

Off If the link is present, it is operating at 10 Mbps.

4

Power/Self Test LED

The Power/Self test LED shows the power status of the Switch:

Status Meaning

Green The unit is powered on and ready for use.

Off The unit is not receiving power:

■

Check the power cord is connected correctly.

■

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

5

Display Function Switch

This switch affects the Status LEDs described in 2 and 3.

This is the normal position of the switch.

Out

The Status LEDs show the Activity and Link Status of
each port.

When the switch is pressed in, the Status LEDs show

In

the Duplex and Speed Status of each port. The switch
returns to the out position when released.

6

Self-adhesive Pads

The unit is supplied with four self-adhesive rubber pads.

You do not need to apply the pads if you intend to rack
mount the unit.

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.

Rear Panel Connections

7

Power Supply

The Baseline 10/100 Switch automatically adjusts to the supply
voltage. Only use the power cord that is supplied with the
Baseline 10/100 Switch.

8

Socket for Redundant Power System (RPS)

Only connect a 3Com SuperStack 3 Advanced RPS (3C16070,
3C16071, 3C16071A or 3C16071B) to this socket. An
appropriate power module and cable is required. The connector
on the Baseline 10/100 Switch is a Type 1, 60W socket. For
details, follow the installation instructions in the guides that
accompany the Advanced RPS and the power module.

INSTALLING THE SWITCH

Positioning the Baseline 10/100 Switch

CAUTION: If installing the Baseline 10/100 Switch in a
stack of different size SuperStack 3 units, the smaller

!

units must be installed above the larger ones. Do not
have a free standing stack of more than six units.

When deciding where to position the Baseline 10/100 Switch
ensure:

!

It is accessible and cables can be connected easily.

!

Cabling is away from sources of electrical noise such as
radios, transmitters and broadband amplifiers, and away from
power lines and fluorescent lighting fixtures.

!

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).

To prolong the operational life of your units:

!

Never stack units more than six high if free standing, and
ensure that cables are supported so that they do not cause
the stack to fall over.

!

Do not place objects on top of any unit or stack.

!

Do not obstruct any vents at the sides of the case.

Power Up

Use the following sequence to power up the Baseline 10/100
Switch:

!

Check the network connections and cables.

!

Connect the power supply cable to the appropriate power
socket on the rear panel of the unit; refer to 7 or 8.

!

Connect the plug to the power supply outlet socket and
switch on the power supply at the socket. If you are using
the Advanced Redundant Power System, ensure it is powered
on.

When the switch is powered on, the Power/Self Test LED should
first flash green, then stay lit. If it does not, refer to 4.

Spot Checks

At frequent intervals you should visually check the Baseline
10/100 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.

If you experience any problems operating the Baseline 10/100
Switch, refer to “

Problem Solving” on page 5.

Rack Mounting

The Baseline 10/100 Switch can be mounted in a 19-inch
equipment rack using the Mounting Kit. Refer to “

Instructions” on page 5.

Mounting Kit

3

SAFETY INFORMATION

Please read the following safety information carefully before
installing the Baseline 10/100 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 3 Hub units, the
Baseline 10/100 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 EN60320/IEC320
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 60. The conditions are only maintained if the
equipment to which it is connected also operates under SELV
conditions.

!

Only connect an Advanced Redundant Power System (3C16070,
3C16071, 3C16071A or 3C16071B) or Redundant Power System
(3C565047) to the Redundant Power System socket.

France and Peru only

This unit cannot be powered from IT

†

supplies. If your supplies are of IT type, this

unit must be powered by 230V (2P+T) via an isolation transformer ratio 1:1, with
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

■

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
10A.

■

The attachment plug must be an earth-grounding type
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,
250V) configuration.

■

Denmark

The supply plug must comply with Section 107-2-D1,
Standard DK2-1a or DK2-5a.

■

Switzerland

UK

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 5A fuse which complies with BS1362.

■

The mains cord must be <HAR> or <BASEC> marked and
be of type HO3VVF3GO.75 (minimum).

■

Europe

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 10/100 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 3 Hub, l’unité
Baseline 10/100 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 EN60320/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 IEC60950. Ces conditions ne sont maintenues
que si l’équipement auquel il est raccordé fonctionne dans les mêmes
conditions.

!

Branchez uniquement un Advanced Redundant Power System
(3C16070, 3C16071, 3C16071A ou 3C16071B) ou un Redundant
Power System (3C565047) sur la prise femelle du Redundant Power
System.

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 10/100 Switch
Einheit die folgenden Sicherheitsanweisungen durchlesen.

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

!

Wenn die Baseline 10/100 Switch Einheit in einer Stapel mit anderen
SuperStack 3 Hub Einheiten eingebaut werden soll, muß die Baseline
10/100 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 EN60320/IEC320 haben.

4

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 60. Diese Bedingungen sind nur
gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter
SELV-Bedingungen betrieben werden.

!

Nur ein

Advanced Redundant Power System (3C16070, 3C16071,3C16071A

oder

3C16071B)

Redundant Power System

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

Schweiz

oder

■

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”).

■

Redundant Power System (3C565047)

Anschluß anschließen.

an den

MOUNTING KIT INSTRUCTIONS

Introduction

The Baseline 10/100 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 “

.

page 3

Positioning the Baseline 10/100 Switch” on

Rack Mounting the Units

The Baseline 10/100 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 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

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:

Link 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.

!

The cable is not damaged.

!

If the connection is to a workstation, that the workstation’s
network interface is installed and configured correctly.

All Activity LEDs appear to be lit continually. There may be
broadcast storms on the network.

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 suit-

able screws (not provided).

6 Reconnect all cables.

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
supplied with the unit)

!

A brief description of the fault

TECHNICAL INFORMATION

Related Standards

The SuperStack 3 Baseline 10/100 Switch has been designed to
the following standards:

Functional

Safety
EMC Emissions

Immunity

Environmental

Operating Temperature
Humidity

ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast
Ethernet), IEEE 802.3x (Flow Control)

UL 1950, EN 60950, CSA 22.2 #950, IEC 60950

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

EN 55024

0–50°C (32–122°F)

10–95% (non-condensing)

Physical

Width
Depth
Height
Weight
Mounting

Electrical

Power Inlet
AC Line Frequency
Input Voltage
Current Rating
Maximum Power

Consumption
Maximum Power

Dissipation

5

440 mm (17.3 in.)

173 mm (6.8 in.)

44 mm (1.7 in.) or 1U

2.6 kg (5.8 lb)

Free standing, or 19in. rack mounted using the mount­ing kit supplied

IEC 320

50/60 Hz

100–240 VAC

1 Amps (maximum)

3C16464C: 49 VA

3C16465C: 88 VA

3C16464C: 165 BTU/hr

3C16465C: 300 BTU/hr

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 with respect 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.

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:

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.

CE Statement (Europe)

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

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

How to Identify and Resolve Radio-TV Interference Problems

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

Country Telephone Number Country Telephone Number Country Telephone Number

Asia, Pacific Rim

Australia
Hong Kong
India

Indonesia
Japan
Malaysia
New Zealand
Pakistan
Philippines

Europe, Middle East
and Africa

From anywhere in these
regions, call:

Europe and South Africa From the following countries, you may use the following toll-free numbers:

Austria
Belgium
Denmark
Finland
France
Germany
Hungary

North America

1 800 678 515
800 933 486
[phone] or
000800 6501111
001 800 61 009
03 5783 1270
1800 801 777
0800 446 398
[phone]
1235 61 266 2602

[phone] phone
[phone] fax

0800 297468
0800 71429
800 17309
0800 113153
0800 917959
0800 1821502
06800 12813

1 800 NET 3Com
(1 800 638 3266)

Enterprise Customers:
1 800 876 3266

P.R. of China

Singapore
S. Korea

Taiwan, R.O.C.
Thailand

Ireland
Israel
Italy
Luxembourg
Netherlands
Norway
Poland

Please have your product model name, part number, hardware
revision number and serial number along with all relevant details
of the problem to hand before calling your Network Supplier or
3Com on the numbers below.

Latin America

10800 61 00137 or
021 6350 1590 or
00800 0638 1590
800 6161 463
00798 611 2230 or
02 3455 6455
0080 611 261
001 800 611 2000

1800 553117
1800 9453794
800 8 79489
0800 3625
0800 0227788
800 11376
00800 3111206

Brazil
Mexico
Puerto Rico
Central and South
America

Portugal
South Africa
Spain
Sweden
Switzerland
U.K.

0800 13 3266
01 800 849CARE
800 666 5065
AT&T [phone]

0800 831416
0800 995014
900 983125
020 795482
0800 55 3072
0800 966197

6

LEGAL NOTICES

© 3Com Technologies, 2001. 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:

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

Use, duplication or disclosure by the Government is

ENVIROMENTAL STATEMENTS

Centre, Boundary Way, Maylands Park South, Hemel Hempstead, Herts, HP2 7YU,
U.K.

For civilian agencies:

Restricted Rights Legend:

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.

Use, reproduction or disclosure is subject to restrictions set

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

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.

Enviromental 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 enviromentally-friendly, and
the inks are vegetable-based with a low heavy-metal content.

of safely

!

Ensuring that all products are labelled according to recognized
environmental standards

!

Improving our environmental record on a continual basis

Product Registration

You can now register your SuperStack 3 Baseline 10/100/1000 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.

Part Number: DUA1646-4AAA05
Published: May 2001

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