3com OfficeConnect 3C16790C Manuel utilisateur

Taper
Manuel utilisateur
3Com Corporation, Corporate Headquarters, 350 Campus Drive,
Marlborough, MA 01752-3064
www.3Com.com
10016680 Rev CA June 2008
OfficeConnect
®
Fast Ethernet Switch 5
(3C16790C)
Fast Ethernet Switch 8
(3C16791C)
User Guide
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 1
About This Guide
This guide will use the term Switch when referring to the
OfficeConnect Fast Ethernet Switch.
DIMENSIONS AND STANDARDS
Dimensions and Operating Conditions
Standards
Functional: ISO 8802/3, IEEE 802.3, IEEE 802.3u
Safety: UL 60950-1, EN 60950-1, CSA 22.2
#60950-1, IEC60950-1
EMC: EN 55022 Class B, EN 55024, FCC Part 15
Class B*, ICES-003 Class B
Environmental: EN 60068 (IEC 68)
Category 5 screened cables must be used to ensure compliance with the Class
B requirements of the above standards. The use of unscreened cables complies
with the Class A requirements.
* Refer to Regulatory notices in this user guide.
3
INTRODUCTION
About This Guide:
Welcome to the world of networking with 3Com. In the
modern business environment, communication and sharing
information is crucial. Computer networks have proved to be
one of the fastest modes of communication but until recently,
only large businesses could afford the networking advantage.
The OfficeConnect
®
product range from 3Com has changed
this, bringing networks to the small office.
As the power of workstations and business applications increas-
es, heavier demands are made on the available network band-
width that if unchecked, can lead to performance problems in
a hub-based setup. Installing the 3Com
®
OfficeConnect Fast
Ethernet Switch 5 (3C16790C) or Switch 8 (3C16791C) allows
your network to be segmented so that traffic can be contained
effectively, reducing the overall load without affecting access to
critical resources. This switch has one of the most compact
designs in the industry making it ideal for desktop use. It can
be used with other units in the OfficeConnect family, which
include Cable/DSL gateways, wireless devices, Fast Ethernet and
Gigabit Ethernet switches. The OfficeConnect family is a fully
integrated system, enabling you to share computer resources,
and take advantage of new technologies as your network grows.
Your Package Contains:
OfficeConnect Switch
Power adapter for use with the Switch
Four rubber feet
This User Guide
Warranty flyer
2
Fast Ethernet
Switch 5
2.8W, 9.56BTU/hr
Fast Ethernet
Switch 8
3.2W, 10.92BTU/hr
Depth:
Switch 5:
85 mm (3.35 in)
Switch 8:
85 mm (3.35 in)
0 to 40ºC
(32 to 104ºF)
operating
temperature
0 to 95%
(non-condensing)
humidity
Width:
Switch 5:
112 mm (4.4 in)
Switch 8:
146 mm (5.75 in)
On =
10/100M
, Flash = Activit
y
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 2
ABOUT YOUR SWITCH
OfficeConnect Fast Ethernet Switch - Front
1 Power LED (Illuminated Logo)
Green
Indicates that the Switch is receiving power. If the LED is
off there may be a problem with the power adapter, power
adapter cable or the Switch's internal power supply. Refer
to Problem Solving.
2 Five/Eight Port Status LEDs
Green (100 Mbps link) (10 Mbps link)
If the LED is on, the link between the port and the next
piece of equipment is OK. If the LED is flashing, the link
is OK and data is being transmitted or received. If the
LED is off, nothing is connected or the connected device
is turned off, or there is a problem with the connection
(refer to the Problem Solving section).
5
GREENCONNECT CONFIGURATION
CONFIGURATION
4
OfficeConnect
Fast Ethernet Switch 8
OfficeConnect
Gigabit Switch
On = 1
0/100
M, Flash = A
c
tivity
Green = 1000M, Yellow = 10/100M, Fl
ash
=
Activit
y
Figure 1
Network showing sample configuration with Fast Ethernet
Switch.
2
1
On = 10/100M, Flash = Activity
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 4
WARNING: RJ-45 ports.
These are shielded RJ-45 data 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.
VORSICHT: RJ-45-Portes.
Diese Portes sind geschützte Datensteckdosen. Sie dürfen
weder wie normale traditionelle Telefonsteckdosen noch für
die Verbindung der Einheit mit einem traditionellenm
privatenm oder öffentlichenm Telefonnetzwerk gebraucht
werden. Nur RJ-45- Datenansclußhlüsse,
Telefonnetzsysteme oder Netztelefone an diese Steckdosen
anschließen.
Entweder geschützte oder ungeschützte Buchsen dürfen an
diese Datensteckdosen angeschlossen werden.
AVERTISSEMENT : Prises RJ-45 blindées.
Ces prises ne peuvent servir comme prises téléphone
standard et ne permettent pas la connexion de l'appareil à
un système PBX ni à un réseau téléphonique public. N'y
branchez que des prises RJ-45 mâles adaptées, ou des
systèmes de réseaux téléphoniques. Il est possible d'y
brancher des câbles blindés ou non comportant des prises
de type Jack (blindées ou non).
7
OfficeConnect Fast Ethernet Switch - Rear
3 Power Adapter Socket
Only use the power adapter that is supplied with the
Switch.
4 10BASE-T/100BASE-TX Ports
Use suitable TP cable with RJ-45 connectors. You can
connect your Switch to a workstation, or any other piece
of equipment that has 10BASE-T/100BASE-TX connectivity.
Each port is capable of autosensing for 10 Mbps,
100 Mbps operation.
All ports have an automatic MDI/MDIX feature, which
means either straight-through or crossover cable can be
used to connect to any port.
6
3
4
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 6
Wall Mounting
There are two slots on the underside of the Switch that can
be used for wall mounting. The Switch must be mounted
with the LEDs facing upwards.
When wall mounting the unit, ensure it is within reach
of the power outlet
When wall mounting the unit, ensure that the rubber
feet are not fixed
Mounting Instructions for Cement Walls
1 Make two holes 67mm apart for 5 port, and 100mm apart
for 8 port and insert two nylon or similar screw anchors
that are suitable for the wall construction.
2 Fix two suitable screws into the anchors, leaving their
heads 3 mm (0.12 in.) clear of the wall surface. The screws
should be at least 30 mm (1.2 in.) long.
3 Remove any connections in the Switch and locate it over
the screw heads. When in line, gently push the Switch on
to the wall and move it downwards to secure.
Mounting Instructions for Wood Walls
1 Make two holes 67mm apart for 5 port, and 100mm apart
for 8 port.
2 Fix two suitable screws directly into the wall, leaving their
heads 3 mm (0.12 in.) clear of the wall surface. The screws
should be at least 20 mm (0.75 in.) long.
3 Remove any connections in the Switch and locate it over
the screw heads. When in line, gently push the Switch on
to the wall and move it downwards to secure.
CAUTION: When making connections, be careful not
to push the Switch up and off the wall.
9
1 POSITIONING YOUR SWITCH
Safety Information
WARNING:
Please read the ‘Important Safety
Information’ section in the Support and Safety
Information sheet before you start.
VORSICHT:
Bitte lesen Sie den Abschnitt ‘Wichtige
Sicherheitsinformationen’ sorgfältig durch, bevor Sie das
Gerät einschalten.
AVERTISSEMENT:
Veuillez lire attentivement la
section "Consignes importantes de sécurité" avant de
mettre en route.
When positioning your Switch, ensure:
It is out of direct sunlight and away from sources of heat.
Cabling is away from power lines, fluorescent lighting fix-
tures, and sources of electrical noise such as radios, trans-
mitters and broadband amplifiers.
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 you pro-
vide a minimum of 25 mm (1 in.) clearance.
Using the Rubber Feet
Use the four self-adhesive rubber feet to prevent your Switch
from moving around on your desk, or when stacking with flat
top OfficeConnect units. Only stick the feet to the marked
areas at each corner on the underside of your Switch.
8
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 8
2 BEFORE YOU INSTALL YOUR SWITCH
Unit Connections
To connect other OfficeConnect units (such as gateways or
switches) to your Switch you need:
One suitable Twisted Pair (TP) cable for each unit
3Com recommends Category 5E cable for Gigabit connections.
Workstation Connections
To connect workstations or other equipment (such as servers)
directly to your Switch, you need:
1 One adapter card for each workstation to be connected to
a port on the Switch. The adapter card must be capable of
communicating at the required speed.
2
An operating system (for example Netware or Windows
95/98/Me/2000/XP) with network support configured, run-
ning on your workstations (for example Windows/Mac/
Linux).
3
One suitable Twisted Pair cable for each workstation.
1110
Wall mounting template
Fast Ethernet Switch 5 67mm apart
Fast Ethernet Switch 8 100mm apart
On
=
1
0
/1
00
M,
F
las
h
= Act
i
vit
y
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 10
Expanding Your Network
You can increase the number of workstations and other
devices that can connect to your network by adding
OfficeConnect gateways and switches. You can connect a
10BASE-T or 100BASE-TX OfficeConnect unit to each port of
the Switch.
The Switch has automatic MDI/MDIX functionality, and there-
fore does not require the Uplink/Normal switch associated
with some OfficeConnect products. Simply plug in the cable,
and the Switch will automatically detect which wiring practice
has been followed, and will compensate accordingly.
Checking Unit Connections
When you have connected all your units, power on the units
and the Switch. The Port Status LEDs for the ports you have
used should be lit. If they are not, check your connections.
4 HOW YOUR SWITCH CAN BE USED
Switching
When a network of repeater hubs is in operation, any infor-
mation that is sent by the workstation is passed around the
whole network (regardless of the destination of the informa-
tion). This can result in a lot of unnecessary traffic that can
slow the network down. The Switch solves this problem
because it "listens" to the network and automatically learns
what workstations can be reached through its ports. It can
then selectively pass on any information by transmitting the
traffic from the relevant port only. This operation is called
"switching".
13
3 CONNECTING WORKSTATIONS
Twisted Pair (TP) Cables
Cables can be shielded (screened) or unshielded. Cables must
be Category 5 or above. The maximum length you can use is
100 m (328 ft).
Twisted Pair (TP) cable is very easy to use. To connect a TP
cable, simply slot the connector into the relevant RJ-45 Port.
When a connector is fully in, its latch locks into place. To
disconnect the cable, push the connector’s latch in and
remove it.
When one end of a TP cable is connected to the Switch and
the other end is connected to the network interface card of a
workstation or other device, the Switch will automatically
detect whether a straight-through or crossover cable is being
used and will compensate if required. The units will then
autonegotiate to determine the fastest possible link speed
between them. This may take a few seconds and the out-
come will be reflected in the LEDs on the front of the Switch.
If the equipment connected to the Switch does not sup-
port autonegotiation or it has been disabled, it must be
configured to operate in half duplex mode.
12
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 12
5 PROBLEM SOLVING
The Switch has been designed to aid you when detecting and
solving possible problems with your network. These problems
are rarely serious; the cause is usually a disconnected or dam-
aged cable, or incorrect configuration. If this section does not
solve your problem, contact your supplier for information on
what to do next.
Perform these actions first:
Ensure all network equipment is powered on.
Power each piece of network equipment off, wait about
five seconds and then power each one on.
CAUTION: Do not power the Switch off and then
immediately on. Wait about five seconds between
power cycles.
Check the following symptoms and solutions:
Power Status LED (Illuminated 3Com Logo) not lit.
The power adapter or power adapter connection is likely to
be faulty. Check your power adapter connection. If there is
still no power, contact 3Com Technical Support and ask for a
replacement power adapter. Please quote the power adapter
part number, shown on the OfficeConnect power adapter
you are currently using or refer to the table opposite.
15
The Switch effectively divides up your network, localizing the
network traffic and passing on traffic as necessary. If you have
any high performance workstations that require a lot of band-
width, connect them directly to the Switch.
Traffic Prioritization (8 port Switch only)
The Switch has a built in feature to aid network performance
at times of excessive load. It is called Priority Queuing. When
a packet is received, the 8 port Switch will examine it to see if
it has been priority encoded. If it has, the Switch will then
read the priority level and determine whether it should be
directed through the normal or high priority channel. This fea-
ture can be useful during excessive loads, for example, when
one type of traffic may require priority over another.
Connecting 10BASE-T/100BASE-TX Networks
The ports can each be connected to a 10BASE-T/100BASE-TX
network. If you have various connection speeds in your net-
work, you can join them together using the Switch allowing
all your workstations to communicate. For example, by con-
necting one of the ports to a server, all the workstations con-
nected to the server can communicate with devices connected
to the Switch, significantly increasing the size of your network.
14
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 14
17
3C number Region
3C12VUS or 3C5VHEUS US United States
3C12VUK or 3C5VHEUK UK United Kingdom
3C12VME or 3C5VHEME ME Mainland Europe
3C12VAA or 3C5VHEAA AA Australasia
3C12VSA SA South Africa
3C12VKR KR South Korea
3C12VRA RA Argentina
Only use the power adapter supplied with the Switch
or a replacement OfficeConnect power adapter. Do
not use any other power adapter.
Port Status LED not lit for a port that has a TP cable
connected. After connection, it may take several seconds for
the Port Status LEDs to illuminate. The Port Status LED should
turn, Green for each port that is connected. Please refer to
‘About Your Switch’ for a full description of the LEDs.
If the Port Status LED is not lit after several seconds, ensure
that the connected device is powered on, that the TP cable is
not damaged and that it is correctly inserted at both ends.
You may find that a TP cable works when connected to the
Switch, but that it does not if disconnected from the Switch
and connected to another device. This may be because the
other device does not have the automatic MDI/MDIX feature.
The Port Status LED is lit but the network performance of
the switch is poor. The switch supports full-duplex autonego-
tiation. If the connected device does not support autonegotia-
tion, ensure it is configured for half duplex operation only.
16
Support
and Safety
Information
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 16
Consignes de sécurité importantes
Avertissement: Ces avertissements sont à respecter pour votre sécurité.
Lisez-les attentivement.
Vous devez impérativement lire les consignes de sécurité suivantes avant
de procéder à l’installation ou à la désinstallation du matériel, ou à toute
activité d’entretien.
Avertissement: L’installation et la désinstallation du matériel nécessite
une vigilance exceptionnelle.
Avertissement: Pour être conforme aux normes de sécurité
internationales, ce produit doit être utilisé exclusivement avec une
alimentation aux normes du pays d’utilisation.
La sortie de l’alimentation doit être de +5/12V continus, 1A minimum, et
les polarités du connecteur de sortie doivent coïncider avec les indications
figurant sur l’appareil.
Avertissement: Coupez systématiquement l’adaptateur secteur
avant de déplacer l’appareil.
Avertissement: Cet appareil fonctionne à très basse tension de
sécurité (SELV, Safety Extra Low Voltage) conformément à la norme IEC
60950-1. Pour ce faire, le matériel auquel il est connecté doit également
fonctionner sous SELV.
Avertissement: Ports RJ 45. Il s’agit de connecteurs de
communication de données blindés RJ 45. Il n’est pas possible de les
utiliser comme prises téléphoniques classiques ni de connecter l’appareil à
un standard téléphonique classique ou à un réseau téléphonique public.
Seuls des connecteurs de réseau de données RJ 45, des systèmes de
téléphonie en réseau ou des téléphones réseau peuvent y être branchés.
Vous pouvez y brancher des câbles pour réseau de données blindés ou
non pourvus de prises jack blindées ou non aux extrémités.
19
Important Safety Information
WARNING: Warnings contain directions you must follow for your
personal safety. Follow all directions carefully.
You must read the following safety information before carrying out any
installation or removal of the unit, or any maintenance procedures.
WARNING: Exceptional care must be taken during installation and
removal of the unit.
WARNING: To ensure compliance with international safety standards
this product must only be used with a power supply that is approved in
the country of use.
The power supply output must be +5/12V DC, 1A minimum and the
polarity of the power supply output connector must comply with the
marking on the unit.
WARNING: Disconnect the power adapter before moving the unit.
WARNING: This unit operates under SELV (Safety Extra Low Voltage)
conditions according to IEC 60950-1. The conditions are only maintained
if the equipment to which it is connected also operates under SELV
conditions.
WARNING: RJ-45 Ports. These are shielded RJ-45 data 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.
18
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 18
Importanti informazioni di sicurezza
Avvertenza: Queste avvertenze precisano le direttive da seguire per
la propria sicurezza personale. Conformarsi con la massima attenzione a
quanto precisato.
Leggere con attenzione le informazioni relative alla sicurezza prima di
procedere all’installazione o alla rimozione dell’unità o a qualsiasi
intervento di manutenzione.
Avvertenza: E’ necessario prestare la massima attenzione durante
l’installazione e la rimozione dell’unità.
Avvertenza: Per garantire la piena conformità con gli standard di
sicurezza internazionali, il prodotto deve essere utilizzato con
un’alimentazione approvata nello specifico paese di utilizzo.
L’uscita dell’alimentazione deve essere +5/12V DC, 1A minimo e la polar-
ità del connettore dell’uscita dell’alimentazione dovrà conformarsi con la
marcatura riportata sull’unità.
Avvertenza: Scollegare l’adattatore di alimentazione prima di
spostare l’unità.
Avvertenza: Quest’unità funziona in condizioni SELV (Safety Extra
Low Voltage) conformemente a IEC 60950-1. Tali condizioni potranno
essere mantenute solo se l’apparecchiatura a cui è collega funziona
similmente in condizioni SELV.
Avvertenza: Porte RJ-45. Si tratta di prese dati schermate RJ-45.
Non potranno essere utilizzate come prese telefoniche tradizionali o per
collegare l’unità ad una normale rete PBS o telefonica pubblica. Collegare
a queste prese solo connettori RJ-45, sistemi di telefonia in rete o telefoni
in rete.
A queste prese dati potranno essere collegati cavi dati schermati o meno
con jack schermati o meno.
21
Wichtige Sicherheitsinformationen
Warnung: Warnhinweise enthalten Anweisungen, die Ihrer
persönlichen Sicherheit dienen. Befolgen Sie all diese Anweisungen mit
größter Sorgfalt.
Lesen Sie unbedingt die folgenden Sicherheitsinformationen, bevor Sie
eine Installation oder Entfernung des Gerätes vornehmen bzw.
Wartungen/Instandhaltungen durchführen.
Warnung: Bei der Installation und Entfernung des Gerätes ist mit
äußerster Sorgfalt vorzugehen.
Warnung: Um die Übereinstimmung mit den internationalen
Sicherheitsstandards zu gewährleisten, darf dieses Produkt nur mit einer
Stromversorgung betrieben werden, die den Bestimmungen des
jeweiligen Landes entspricht.
Die Netzsteckdose muss +5/12V DC, 1A minimal haben und die Polarität
des Netzanschlusses muss der Kennzeichnung auf dem Gerät
entsprechen.
Warnung: Nehmen Sie vor dem Transport des Gerätes den
Netzadapter ab.
Warnung: Dieses Gerät arbeitet gemäß IEC 60950-1 mit
Schutzkleinspannung (SELV = Safety Extra Low Voltage). Dieser Schutz
bleibt nur erhalten, wenn die angeschlossene Anlage ebenfalls über SELV
verfügt.
Warnung: RJ-45 Anschluss. Dies sind abgeschirmte RJ-45-
Datenbuchsen. Sie können nicht als herkömmliche
Standardtelefonbuchsen verwendet werden und verbinden das Gerät
nicht mit einer herkömmlichen Telefonanlage oder einem öffentlichen
Telefonnetz. Schließen Sie an diese Buchsen nur RJ-45-Datenanschlüsse,
Netzwerktelefonieanlagen oder Netzwerktelefone an.
An diese Datenbuchsen können abgeschirmte oder nicht abgeschirmte
Stecker angeschlossen werden.
20
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 20
IIssttoottnnee BBeezzppiieecczzeeńńssttwwoo IInnffoorrmmaaccjjaa
WWaarrnniinngg::
Ostrzeżenia zawierają wskazówki, których należy
przestrzegać w celu zagwarantowania bezpieczeństwa osobistego. Do
tych zaleceń należy stosować się dokładnie.
Przed przystąpieniem do instalacji, usuwania urządzenia lub jakichkolwiek
czynności konserwacyjnych należy zapoznać się z instrukcjami
bezpieczeństwa.
WWaarrnniinngg::
Podczas montażu lub demontażu urządzenia należy
pracować z wyjątkową uwagą.
WWaarrnniinngg::
Aby zapewnić zgodność z międzynarodowymi standardami
bezpieczeństwa, produkt należy wyłącznie używać w połączeniu z
zasilaczem zatwierdzonym w danym kraju.
Gniazdo zasilania musi mieć parametry +5/12V DC, 1A minimum, a
biegunowość złącza wyjściowego musi być zgodna z oznaczeniami na
urządzeniu.
WWaarrnniinngg::
Przed przeniesieniem urządzenia należy odłączyć zasilacz.
WWaarrnniinngg::
Urządzenie działa w warunkach SELV (obwód
bezpiecznego niskiego napięcia) zgodnie z normą IEC 60950-1. Warunki
te są jednak zagwarantowane wyłącznie wtedy, gdy sprzęt, do którego
podłączone jest urządzenie, również pracuje w obwodzie SELV.
WWaarrnniinngg::
Porty RJ-45. Są to ekranowane gniazda RJ-45 do
danych. Nie są przeznaczone do użycia jako standardowe gniazda
telefoniczne lub do podłączenia urządzenia do PBX lub publicznej sieci
telefonicznej. Do tych gniazd wolno podłączać wyłącznie wtyki RJ-45
danych, systemów telefonii sieciowej lub telefonów sieciowych.
Do tych gniazd można podłączać kable danych ekranowane lub
nieekranowane z ekranowanymi lub nieekranowanymi wtykami.
23
Información de seguridad importante
Advertencia: Las advertencias contienen instrucciones que debe
seguir para su seguridad personal. Siga todas las instrucciones atentamente.
Debe leer la siguiente información de seguridad antes de llevar a cabo la
instalación o extracción de la unidad, o cualquier procedimiento de
mantenimiento.
Advertencia: Se debe extremar el cuidado durante la instalación y
extracción de la unidad.
Advertencia: Para asegurar la conformidad con los estándares de
seguridad internacionales, este producto sólo se puede usar con una
fuente de alimentación aprobada en el país de uso.
La salida de la fuente de alimentación debe ser de +5/12V CC, de 1A
mínimo y la polaridad del conector de salida de alimentación debe
cumplir con la marca en la unidad.
Advertencia: Desconecte el adaptador de alimentación antes de
desplazar la unidad.
Advertencia: Esta unidad opera bajo condiciones SELV (muy bajo
voltaje de seguridad) de acuerdo con la norma IEC 60950-1. Las
condiciones sólo se mantienen si el equipo al que está conectado
también opera bajo condiciones SELV.
Advertencia: Puertos RJ-45 Son enchufes de datos RJ-45 blindados.
No se pueden usar en los tradicionales enchufes telefónicos estándar, o
para conectar la unidad a una red PBX tradicional o red telefónica
pública. Conecte únicamente a estos enchufes los conectores de datos
RJ-45, sistemas de telefonías de red o teléfonos de red.
A estos enchufes de datos se pueden conectar cables blindados o no
blindados con tomas hembra blindadas o no blindadas.
22
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 22
Manufacturers Declaration of Conformity
3Com Corporation, 350 Campus Drive, Marlborough,
MA 01752-3064, USA
Declares that the following products:
Date: June 2008
Brand Name: 3Com Corporation
Model Nos.: 3C16790C, 3C16791C
Equip Type: Fast Ethernet Switch 5 / Fast Ethernet Switch 8
Complies with Part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation. Category 5 screened cables must be
used to ensure compliance with the Class B requirements of
the above standards. The use of unscreened cables complies
with the Class A requirements.
25
ENVIRONMENTAL STATEMENTS
For further details please refer to
http://www.3com.com/environment/index.html
REGULATORY NOTICES
FCC Statement
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reason-
able 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 accor-
dance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or
television, which can be determined by turning the equip-
ment off and on, the user is encouraged to to try to correct
the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation distance between the equipment
and receiver
Connect the equipment to 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
24
Tested to Comply
With FCC Standards
For Home or Office
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 24
OBTAINING SUPPORT FOR YOUR PRODUCT
3Com offers product registration, case management, and
repair services through eSupport.3com. You must have a
user name and password to access these services, which are
described in this appendix.
Register Your Product to Gain Service Benefits
To take advantage of warranty and other service benefits, you
must first register your product at:
http://eSupport.3com.com/. 3Com eSupport services are
based on accounts that are created or that you are authorized
to access.
Solve Problems Online
3Com offers the following support tool:
3Com Knowledgebase — Helps you to troubleshoot 3Com
products. This query-based interactive tool is located at:
http://knowledgebase.3com.com. It contains thousands
of technical solutions written by 3Com support engineers.
Purchase Extended Warranty and Professional
Services
To enhance response times or extend your warranty benefits,
you can purchase value-added services such as 24x7 tele-
phone technical support, software upgrades, onsite assis-
tance, or advanced hardware replacement.
27
CSA Statement
This Class B digital apparatus meets all requirements of the
CanadianInterference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exi-
gences du Règlementsur le matériel brouilleur du Canada.
CE Statement and Manufacturer's Declaration of conformity
A copy of the signed Declaration of Conformity can be down-
loaded from the Product Support web page at
http://www.3com.com/
Also available at
http://support.3com.com/doc/3C1679xC.pdf
VCCI Statement
26
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 26
Telephone Technical Support and Repair
To obtain telephone support as part of your warranty and
other service benefits, you must first register your product at:
http://eSupport.3com.com/
When you contact 3Com for assistance, please have the fol-
lowing information ready:
Product model name, part number, and serial number
A list of system hardware and software, including revision
level
Diagnostic error messages
Details about recent configuration changes, if applicable
To send a product directly to 3Com for repair, you must first
obtain a return materials authorization number (RMA).
Products sent to 3Com without authorization numbers clearly
marked on the outside of the package will be returned to the
sender unopened, at the sender’s expense. If your product is
registered and under warranty, you can obtain an RMA num-
ber online at http://eSupport.3com.com/. First-time users
must apply for a user name and password.
Telephone numbers are correct at the time of publication.
Find a current directory of 3Com resources by region at:
http://csoweb4.3com.com/contactus/
29
Experienced engineers are available to manage your installa-
tion with minimal disruption to your network. Expert assess-
ment and implementation services are offered to fill resource
gaps and ensure the success of your networking projects. For
more information on 3Com Extended Warranty and
Professional Services, see: http://www.3com.com/
Contact your authorized 3Com reseller or 3Com for addition-
al product and support information. See the table of access
numbers later in this appendix.
Contact Us
3Com offers telephone, internet, and e-mail access to techni-
cal support and repair services. To access these services for
your region, use the appropriate telephone number, URL, or
e-mail address from the table in the next section.
28
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 28
Country Telephone Number
Europe, Middle East, and Africa — Telephone
Technical Support and Repair
From anywhere in these regions not listed below,
call: +44 1442 435529
From the following countries, call the appropriate number:
Austria 0800 297 468
Belgium 0800 71429
Denmark 800 17309
Finland 0800 113153
France 0800 917959
Germany 0800 182 1502
Hungary 06800 12813
Ireland 1 800 553 117
Israel 180 945 3794
Italy 800 879489
Luxembourg 800 23625
Netherlands 0800 0227788
Norway 800 11376
Poland 00800 4411 357
Portugal 800 831416
South Africa 0800 995 014
Spain 900 938 919
Sweden 020 795 482
Switzerland 0800 553 072
U.K. 0800 096 3266
You can also obtain support in this region using this URL:
http://emea.3com.com/support/email.html
31
Country Telephone Number
Asia, Pacific Rim — Telephone Technical Support and
Repair
Australia 1800 075 316
Hong Kong 2907 0456
India 000 800 440 1193
Indonesia 001 803 852 9825
Japan 03 3507 5984
Malaysia 1800 812 612
New Zealand 0800 450 454
Philippines 1800 144 10220 or 029003078
P.R. of China 800 810 0504
Singapore 800 616 1463
South Korea 080 698 0880
Taiwan 00801 444 318
Thailand 001 800 441 2152
Pakistan Call the U.S. direct by dialing 00 800 01001, then
dialing 800 763 6780
Sri Lanka Call the U.S. direct by dialing 02 430 430, then
dialing 800 763 6780
Vietnam Call the U.S. direct by dialing 1 201 0288, then
dialing 800 763 6780
You can also obtain non-urgent support in this region at this
email address [email protected]
Or request a return material authorization number (RMA) by
FAX using this number: +61 2 9937 5048, or send an email
at this email address: ap_rma_r[email protected]
30
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 30
Country Telephone Number
Jamaica AT&T +800 988 2112
Mexico 1800 849 2273
Mexico Local +52-55-52-01-0004
Monserrat AT&T +800 998 2112
Nicaragua AT&T +800 998 2112
Panama AT&T +800 998 2112
Paraguay AT&T +800 998 2112
Peru AT&T +800 998 2112
Puerto Rico AT&T +800 998 2112
Rest of Latin America 508 323 6234
St. Kitts Nevis AT&T +800 998 2112
St. Lucia AT&T +800 998 2112
St. Vincent AT&T +800 998 2112
Suriname AT&T +800 998 2112
Trinidad and Tobago AT&T +800 998 2112
Turks and Caicos AT&T +800 998 2112
Uruguay - Montevideo AT&T +800 998 2112
Venezuela AT&T +800 998 2112
Virgin Islands AT&T +800 998 2112
You can also obtain support in this region in the following ways:
Spanish speakers, enter the URL:
http://lat.3com.com/lat/support/form.html
Portuguese speakers, enter the URL:
http://lat.3com.com/br/support/form.html
English speakers in Latin America should send e-mail to:
33
Country Telephone Number
Latin America — Telephone Technical Support and Repair
Antigua AT&T +800 988 2112
Antigua Barbuda AT&T +800 988 2112
Argentina AT&T +800 988 2112
Aruba AT&T +800 988 2112
Bahamas AT&T +800 988 2112
Barbados AT&T +800 988 2112
Belize AT&T +800 988 2112
Bermuda AT&T +800 988 2112
Bolivia AT&T +800 988 2112
Brasil 0800-133266 (0800-13-3COM)
Brasil Local +5511 5643 2700
British Virgin Islands AT&T +800 988 2112
Cayman Islands AT&T +800 988 2112
Chile AT&T +800 998 2112
Colombia AT&T +800 998 2112
Columbia Local +571 592 5000
Costa Rica AT&T +800 998 2112
Curaçao AT&T +800 988 2112
Dominican Republic AT&T +800 998 2112
El Salvador AT&T +800 988 2112
Equador AT&T +800 988 2112
French Guyana AT&T +800 988 2112
Grenada AT&T +800 988 2112
Guadalupe AT&T +800 988 2112
Guatemala AT&T +800 998 2112
Guyana AT&T +800 988 2112
Haiti AT&T +800 988 2112
Honduras AT&T +800 998 2112
32
3C16790C_ 3C16791C_booklet 3/6/08 09:51 Page 32
COPYRIGHT AND TRADEMARKS
3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA 01752-3064
Copyright © 2008 3Com Corporation. All rights reserved.
Copyright
No part of any documentation supplied with this product may be reproduced in any form or by
any means or used to make any derivative work (such as translation, transformation, or adapta-
tion) without written permission from 3Com Corporation.
3Com Technologies reserves the right to revise any documentation supplied with this product
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 any documentation supplied with this product without warranty,
term, or condition of any kind, either implied or expressed, including, but not limited to, the
implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a
particular purpose. 3Com may make improvements or changes in the product(s) and/or the
program(s) described in any documentation supplied with this product at any time.
If there is any software on removable media described in any documentation supplied with this
product, it is furnished under a license agreement included with the product as a separate doc-
ument, in the hard copy documentation, or on the removable media in a directory file named
LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a
copy will be provided to you.
UNITED STATES GOVERNMENT LEGEND
If you are a United States government agency, then any documentation supplied with this
product and the software described therein are provided to you subject to the following:
All technical data and computer software are commercial in nature and developed solely at pri-
vate expense. Software is delivered as "Commercial Computer Software" as defined in DFARS
252.227-7014 (June 1995) or as a "commercial item" as defined in FAR 2.101(a) and as such
is provided with only such rights as are provided in 3Com’s standard commercial license for the
Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015
(Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or
deface any portion of any legend provided on any licensed program or documentation supplied
to you in connection with this product.
Trademarks
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and
may or may not be registered in other countries.
3Com, the 3Com logo and OfficeConnect are registered trademarks of 3Com Corporation.
All other company and product names may be trademarks of the respective companies with
which they are associated.
Please e-mail any comments about this document to 3Com at:
[email protected]. Please include the document title, part number and if
appropriate, the page number.
35
Country Telephone Number
US and Canada — Telephone Technical Support and Repair
All locations: All 3Com products: 1 800 876 3266
CHINA RoHS
34
The above table provides information required under the following Chinese legislation:
Management methods for Controlling Pollution by Electronic Information Products (No. 39)
(also known as China RoHS)
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3com OfficeConnect 3C16790C Manuel utilisateur

Taper
Manuel utilisateur