3Com Switch DUA1647 7AAA01 User Manual

®
SuperStack 3 Baseline 8 Port Gigabit Switch  
10BASE-T/100BASE-TX/1000BASE-T (3C16477) User Guide  
DUA1647-7AAA01  
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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 supports a maximum of 8192  
MAC adddresses.  
Baseline Dual Speed Hub  
with 10/100 connection  
The Baseline 8 Port Gigabit Switch can be rack-mounted or free  
standing.  
Baseline 8 Port Gigabit Switch  
Servers with  
1000Mbps  
connections  
The Baseline 8 Port Gigabit Switch includes:  
One power cord  
1000Mbps  
connections  
One mounting kit  
Four standard height, self-adhesive rubber pads  
Baseline 10/100 Switch plus Gigabit  
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.  
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3 Duplex Status LEDs  
Priority Level  
Traffic Type  
The second row of Status LEDs, which are colored yellow, show  
the duplex status of the related ports:  
0
1
2
3
4
5
Best Effort  
Background  
Status  
On Yellow  
Off  
Meaning  
Standard (spare)  
The port is operating in full duplex mode.  
The port is operating in half duplex mode.  
Excellent Effort (business critical)  
Controlled Load (streaming multimedia)  
Video (Interactive media), less than 100 milliseconds  
latency and jitter.  
1000BASE-T only operates in full duplex mode.  
10BASE-T/100BASE-TX can be in half or full duplex  
mode.  
6
7
Voice (Interactive voice), less than 10 milliseconds  
latency and jitter.  
Network Control Reserved traffic  
4 Power LED  
The Power LED shows the power status of the Switch:  
The traffic prioritization feature supported by the Switch  
is compatible with the relevant sections of the IEEE  
802.1D standard (incorporating IEEE 802.1p).  
Status  
On Green  
Off  
Meaning  
The unit is powered on and ready for use.  
2 Activity/Link/Speed Status LEDs  
The unit is not receiving power:  
The top row of Status LEDs, labelled “Link/Activity,” show the  
link and activity status of the related ports:  
Check that the power cord is connected correctly.  
If the unit still does not operate, contact your supplier.  
Status  
On  
Meaning  
Rear Panel Connections  
5 Power Supply  
The link has been established.  
Packets are being received or transmitted on the port.  
Flashing  
Off  
The Baseline 8 Port Gigabit Switch automatically adjusts to the  
supply voltage. Only use the power cord that is supplied with the  
unit.  
If the link has not been established, either nothing is con-  
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.  
Green  
Yellow  
The link is operating at 1000 Mbps.  
The link is operating at 10 or 100 Mbps.  
INSTALLING THE SWITCH  
Positioning the Switch  
Rack Mounting or Free Standing  
This unit can be mounted in a 19-inch equipment rack using the  
can also be free standing. Do not place objects on top of the  
unit or stack.  
When deciding where to position the Baseline 8 Port Gigabit  
Switch ensure:  
It is accessible and cables can be connected easily.  
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.  
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.  
Do not apply the pads if you intend to rack mount the  
unit.  
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).  
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.  
!
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.  
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.  
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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.  
Connecting to a Network Device  
Follow these guidelines to connect a device to the Baseline 8  
Port Gigabit Switch:  
Powering Up  
Use Category 5 unshielded or shielded (screened) 100 Ohm  
TP cable (or Category 3 cable for a 10 Mbps connection).  
Use the following sequence to power up the Baseline 8 Port  
Gigabit Switch:  
The maximum length of cable for each connection is  
100 m (328 ft).  
1
2
Check the network connections and cables.  
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.  
Connect the power supply cable to the appropriate power  
socket on the rear panel of the unit; see reference 5 in  
Power Supply  
3
Connect the plug to the power supply outlet socket and  
switch on the power supply at the socket.  
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.  
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  
MOUNTING KIT INSTRUCTIONS  
3
Insert the two screws supplied in the mounting kit and fully  
tighten with a suitable screwdriver.  
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  
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.  
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.  
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2
Place the unit the right way up on a hard, flat surface with  
the front facing towards you.  
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.  
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.  
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:  
If the problem persists and the unit still does not operate  
successfully, contact your supplier with the following information  
before returning the unit:  
Activity Status LED not lit for a port that has a connection.  
There is a problem with this connection. Check that:  
Product number and serial number (printed on a label sup-  
plied with the unit)  
The device being connected to is powered on and operating  
correctly.  
A brief description of the fault  
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 workstations  
network interface is installed and configured correctly.  
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SAFETY INFORMATION  
Please read the following safety information carefully  
before installing the Baseline 8 Port Gigabit Switch.  
the secondary connection point labelled Neutral, connected directly to earth  
(ground).  
Impédance à la terre  
WARNING: Installation and removal of the unit must be carried out by  
qualified personnel only.  
Power Cord Set  
This must be approved for the country where it will be used. e.g.  
The cord set must be UL-approved and CSA certified.  
U.S.A. and  
Canada  
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.  
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.  
Denmark  
The supply plug must comply with SEV/ASE 1011.  
Switzerland  
UK  
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).  
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 230 V (2P+T) via an isolation transformer ratio 1:1, with  
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).  
Europe  
L’INFORMATION DE SÉCURITÉ IMPORTANTE  
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).  
Veuillez lire à fond l'information de la sécurité suivante  
avant d'installer le Baseline 8 Port Gigabit Switch.  
AVERTISSEMENT: Linstallation et la dépose de ce groupe doivent être  
confiés à un personnel qualifié.  
Cordon électrique  
Il doit être agréé dans le pays d’utilisation.  
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.  
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).  
Etats-Unis et  
Canada:  
La prise mâle d’alimentation doit respecter la section 107-2 D1  
de la norme DK2 1a ou DK2 5a.  
Danemark:  
Suisse:  
Lappareil 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.  
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).  
Europe  
WICHTIGE SICHERHEITSINFORMATIONEN  
Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein.  
Bitte unbedingt vor dem Einbauen des Baseline 8 Port  
Gigabit Switch Einheit die folgenden  
Sicherheitsanweisungen durchlesen.  
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.  
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.  
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”).  
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TECHNICAL INFORMATION  
Related Standards  
Physical  
Width  
440 mm (17.3 in.)  
173 mm (6.8 in.)  
43.6 mm (1.7 in.) or 1U  
3 kg (6.6 lb)  
The SuperStack 3 Baseline 8 Port Gigabit Switch has been  
designed to the following standards:  
Depth  
Height  
Weight  
Mounting  
Functional  
ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast  
Ethernet), IEEE 802.3ab (Gigabit Ethernet), IEEE 802.1D  
(Bridging)  
Free standing, or 19-inch rack mounted using the  
mounting kit supplied  
Safety  
UL 60950, EN 60950, CSA 22.2 #60950, IEC 60950  
Electrical  
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  
Power Inlet  
IEC 320  
AC Line Frequency  
Input Voltage  
Current Rating  
47 to 63 Hz  
Immunity  
EN 55024  
100–240 VAC  
0.4 A at 115 V, 0.2 A at 230 V  
28 W  
Environmental  
Maximum Power  
Consumption  
Operating Temperature  
Humidity  
0–40 °C (32–104 °F)  
10–95% (non-condensing)  
Maximum Power  
Dissipation  
95.6 BTU/hr  
REGULATORY NOTICES  
FCC Statement  
CE Statement (Europe)  
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  
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.  
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.  
CSA Statement  
This Class A digital apparatus meets all requirements of the  
Canadian Interference-Causing Equipment Regulations.  
Information To The User  
Cet appareil numérique de la classe A respecte toutes les  
exigences du Règlement sur le matériel brouilleur du Canada.  
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:  
VCCI Statement  
BSMI Statement  
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.  
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.  
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TECHNICAL SUPPORT  
The following options are available for technical support:  
When you contact your network supplier for assistance, have the  
following information ready:  
In the first instance contact your Network Supplier.  
Product model name, part number, and serial number  
Check the 3Com knowledgebase at  
A list of system hardware and software, including revision  
levels  
Browse the 3Com web site on  
Diagnostic error messages  
If you require additional assistance, contact your network  
supplier. Many suppliers are authorized 3Com service partners  
who are qualified to provide a variety of services, including  
network planning, installation, hardware maintenance,  
application training, and support services.  
Details about recent configuration changes, if applicable  
If you are unable to contact your network supplier, see the  
following section on how to contact 3Com.  
Country  
Telephone Number  
Country  
Telephone Number Country  
Telephone Number  
Asia, Pacific Rim  
Australia  
Hong Kong  
India  
1 800 678 515  
800 933 486  
+61 2 9424 5179 or  
000800 650 1111  
001 803 61009  
00531 616 439 or  
03 5977 7991  
Malaysia  
1800 801 777  
Singapore  
S. Korea  
800 6161 463  
New Zealand  
Pakistan  
0800 446 398  
00798 611 2230 or  
02 3455 6455  
+61 2 9937 5083  
1235 61 266 2602 or  
+61 2 9937 5076  
10800 61 00137 or  
021 6350 1590 or  
00800 0638 3266  
Philippines  
Taiwan  
Thailand  
00801 611 261  
001 800 611 2000  
Indonesia  
Japan  
P.R. of China  
Europe, Middle East and Africa  
From anywhere in these  
regions, call:  
+44 (0)1442 435529  
From the following countries, you may use the numbers shown:  
Austria  
01 7956 7124  
070 700 000  
070 700 770  
7010 7289  
01080 2783  
0825 809 622  
01805 404 747  
Hungary  
Ireland  
06800 14466  
1800 509359  
1800 943 2632  
199 161346  
800 29880  
0900 777 7737  
815 33 047  
Poland  
00800 441 1357  
707 200 123  
0800 991196  
9 021 60455  
07711 14453  
08488 50112  
0870 241 3901  
Belgium (Flemish)  
Belgium (French)  
Denmark  
Portugal  
South Africa  
Spain  
Israel  
Italy  
Finland  
Luxembourg  
Netherlands  
Norway  
Sweden  
Switzerland  
U.K.  
France  
Germany  
Latin America  
Antigua  
Argentina  
Aruba  
Bahamas  
Barbados  
Belize  
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  
Chile  
AT&T +800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
57 1 657 0888  
AT&T +800 998 2112  
1 800 998 2112  
571 657 0888  
Mexico  
01 800 849CARE  
Colombia  
Costa Rica  
Curacao  
Nicaragua  
Panama  
AT&T +800 998 2112  
AT&T +800 998 2112  
54 11 4894 1888  
Paraguay  
Ecuador  
Peru  
AT&T +800 998 2112  
1 800 998 2112  
Dominican Republic  
Guatemala  
Haiti  
Puerto Rico  
Salvador  
Bermuda  
Bonaire  
Brazil  
AT&T +800 998 2112  
1 800 998 2112  
Trinidad and Tobago  
Uruguay  
Honduras  
Jamiaca  
Martinique  
AT&T +800 998 2112  
AT&T +800 998 2112  
57 1 657 0888  
Cayman  
Venezuela  
Virgin Islands  
North America  
1 800 876 3266  
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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.  
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 Corporations standard commercial  
agreement for the software. Unpublished rights reserved under the  
copyright laws of the United States.  
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.  
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.  
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.  
Unless otherwise indicated, 3Com registered trademarks are registered in  
the United States and may or may not be registered in other countries.  
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:  
3Com and SuperStack are registered trademarks of 3Com Corporation.  
Other brand and product names may be registered trademarks or  
trademarks of their respective holders.  
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  
End Of Life Statement  
It is the policy of 3Com Corporation to be environmentally-friendly in all  
operations. To uphold our policy, we are committed to:  
3Com processes allow for the recovery, reclamation and safe disposal of  
all end-of-life electronic components.  
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  
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.  
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 8 Port Gigabit Switch on the 3Com web site:  
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:  
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: DUA1647-7AAA01  
Published: August 2002  
8
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