3Com Switch 3CNJ100 User Manual

Installation Guide  
NJ100 Network Jack  
3CNJ100  
4-port 10/100 Mbps Unmanaged  
Ethernet Switch  
09-2141-000  
Published September 2001  
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Contents  
About the Network Jack  
Before You Begin  
Obtaining Optional Components  
Installing the Network Jack  
2
6
7
8
Setting up the Power Supply 10  
Using an Integrated Switch with Power Over  
Ethernet 10  
Using a Multi-port Ethernet Power Supply 10  
Using a Single-port Ethernet Power Supply 12  
Using the 3Com Local Power Supply 12  
Setting the Power Over Ethernet Dip Switches 13  
Installing the Adapter Plate and Pass-Through Ports 15  
Planning the Installation 17  
Setting up the Network Cabling at Your Site 19  
Connecting the Network Jack to the Network 19  
Mounting the Network Jack 22  
Connecting the Local Power Supply (Optional) 23  
Connecting Devices to the Network Jack 23  
Checking the LEDs 24  
Troubleshooting the Network Jack 24  
Specifications 26  
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Contents  
Contacting Technical Support 28  
One-Year Free Installation Support 28  
Online Technical Services 29  
World Wide Web Site 29  
3Com Knowledgebase Web Services 29  
3Com FTP Site 30  
Support from Your Network Supplier 30  
Support from 3Com 31  
Returning Products for Repair 31  
3Com Corporation Limited Warranty 33  
FCC Class A Verification Statement 37  
FCC Declaration of Conformity 37  
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Installation Guide  
The 3Com Network Jack is a 4-port, unmanaged Ethernet switch  
that fits into any standard electrical wall outlet or data port  
opening.  
The Network Jack brings switching capabilities to any single port  
on an Ethernet network by allowing up to four networking  
devices, such as computers, printers, Voice Over IP (VoIP)  
telephones, and scanners, to be connected to the network via  
one Ethernet port. Optional connectors are also available that  
allow up to two additional devices to be connected to separate  
network segments through the same Network Jack.  
The Network Jack needs no software to operate and little or no  
configuration. All ports feature 10/100 Mbps auto-negotiation,  
which configures the Network Jack for 10 Mbps or 100 Mbps  
connections automatically.  
Power to the Network Jack can be provided one of the following ways:  
I
Over the network via an integrated switch that supports  
Power Over Ethernet; specifically, a switch that is compatible  
with Capacitive Power Discovery Process (24V or 48V) or IEEE  
802.3af-compatible Power Over Ethernet. Power Over  
Ethernet, also known as in-line power, is a feature that  
provides power onto an Ethernet cable, allowing a device to  
receive both data and power from the same network cable.  
I
I
Over the network via an optional single-port or multi-port  
Ethernet power supply. See “Setting up the Power Supply”  
on page 10 for more information.  
Locally via an optional local power supply. See “Using the  
3Com Local Power Supply” on page 12 for more information.  
1
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Installation Guide  
About the Network Jack  
The following diagram shows the front view of the Network Jack.  
2
1
2
1
3
4
3
4
5
2
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About the Network Jack  
1
Switched ports  
Allow up to four devices to be connected to  
the network.  
Port number 1 is also a power-forwarding port;  
it can be used with any standard networking  
device as well as to power a VoIP telephone on  
a network that uses IEEE 802.3af-compatible  
Power Over Ethernet.  
2
3
Slot for adapter Can be fitted with an adapter plate, which  
plate  
can be installed with up to two pass-through  
ports.  
Adapter plate  
with installed  
pass-through  
port connector  
Can be used for voice or other networking  
applications. The port bypasses the  
functionality of the switch, allowing you to  
set up a connection to a separate network  
segment or to connect to an analog or digital  
PBX telephone.  
The adapter plates are available from 3Com.  
However, you must purchase the connectors  
from the manufacturer. See “Installing the  
Adapter Plate and Pass-Through Ports” on  
page 15 for more information.  
4
5
LEDs  
Indicates network connection status.  
Indicates power status.  
Power socket  
Can be used to power the Network Jack with  
a local power supply (available for purchase  
from 3Com); required if your network does  
not support Power Over Ethernet.  
3
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Installation Guide  
The following diagram shows the back view of the Network Jack.  
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1
3
4
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About the Network Jack  
1
Ethernet uplink Connects the Network Jack to the network.  
port  
Make sure the port on the network switch  
to which the Network Jack is connected is  
configured as a standard MDI-X port.  
2
3
Slot for adapter Can be fitted with an adapter plate, which can  
plate  
be installed with up to two pass-through ports.  
Adapter plate  
with installed  
pass-through  
port connector  
Connects the installed pass-through port to  
the network.  
4
Dip switches  
Determine the type of Power Over Ethernet  
(Capacitive Power Discovery Process 24V or  
48V or IEEE 802.3af) the Network Jack uses.  
Setting the dip switches is required only if your  
network supports Power Over Ethernet, or if  
you are using a multi-port Ethernet power  
supply. See “Setting the Power Over Ethernet  
Dip Switches” on page 13 for instructions.  
5
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Installation Guide  
Before You Begin  
Before you begin installation, register your product at:  
The Network Jack is available in single- and 20-packs. Before you  
begin the installation, make sure you have the following items,  
which are included with the Network Jack:  
I
6x32 screws (2 per Network Jack) for mounting the  
Network Jack to the wall or office cubicle.  
I
RJ-45 coupler cable (1 per Network Jack) for connecting  
the Ethernet cable from the network to the Network Jack  
(required only if your network cable is terminated with a  
female RJ-45 connector).  
I
Installation guide (1 per package).  
Additionally, the following items are shipped with the single pack:  
I
Adapter plates for installing connectors to use as pass-  
through ports. The adapter plates accommodate connectors  
from suppliers including:  
I
Panduit (RJ-45 and RJ-11)  
Avaya (RJ-45 and RJ-11)  
I
NOTE: The connectors for the adapter plates must be  
purchased from the manufacturer. For a list of supported  
I
Adapter plate screws (2) for mounting the adapter plate to  
the Network Jack.  
6
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Obtaining Optional Components  
Obtaining Optional Components  
The Network Jack works with the following optional components,  
all of which are available from 3Com. Order online at  
Component  
Purpose  
3C Number(s)  
Adapter plates  
For installing pass-through port  
connectors of your choice that allow  
a direct connection to another  
3CNJAP-PA-20  
3CNJAP-AV-20  
network segment or for connecting  
an analog or digital PBX telephone.  
Extension ring  
For ensuring that the Network Jack 3CNJEXTRING  
is properly mounted to a cubicle;  
required if the cubicle opening:  
I
I
I
Has a depth of fewer than  
1.5 inches.  
Does not support the NEMA-  
WD6 standard.  
Does not have pre-drilled  
screw holes for standard  
mounting.  
Single-port  
For providing Power Over Ethernet 3CNJPSE  
Ethernet power to locally power a single Network  
supply  
Jack.  
Multi-port  
For providing Power Over Ethernet 3CNJPSE24  
Ethernet power to power up to 24 Network Jacks.  
supply  
3C10220  
3C10222  
Local power  
supply  
For locally powering a single  
Network Jack; required if your  
network does not support Power  
Over Ethernet.  
3CNJPSL  
7
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Installation Guide  
Component  
Purpose  
3C Number(s)  
VoIP telephone For powering a VoIP telephone on a Check the 3Com  
power cable  
network that uses Capacitive Power web site  
Discovery Process-compatible Power  
Over Ethernet.  
Network Jack  
Tester  
For verifying the Network Jack  
installation; useful if installing  
multiple Network Jacks.  
3CNJTESTER  
Installing the Network Jack  
Installing the Network Jack consists of the following steps:  
1
2
Set up the power supply (page 10).  
Set the Power Over Ethernet dip switches (page 13;  
optional, required only if your network supports Power  
Over Ethernet or if you are using a single-port or multi-port  
power supply).  
3
Install the adapter plate and pass-through ports (page 15;  
optional).  
4
5
6
7
Plan the installation (page 17).  
Set up the network cabling at your site (page 19).  
Connect the Network Jack to the network (page 19).  
Mount the Network Jack to the wall or office cubicle  
(page 22).  
8
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Installing the Network Jack  
8
9
Connect the local power supply (page 23; optional) not  
required if your network supports Power Over Ethernet or  
if you are using a single-port or multi-port power supply).  
Connect network devices to the Network Jack (page 23).  
The following diagram displays an overview of the recommended  
installation, where the Network Jack is being connected to an  
Ethernet network cable that is terminated with a female RJ-45  
connector. Detailed installation instructions are included in the  
sections that follow.  
Wall  
To wiring  
closet  
Network  
cable  
1
2
3
RJ-45  
coupler cable  
4
9
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Installation Guide  
Setting up the Power Supply  
Power to the Network Jack can be supplied one of the following ways:  
I
Over the network via an integrated switch that supports  
Power Over Ethernet.  
I
I
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Over the network via a multi-port Ethernet power supply.  
Over the network via a single-port Ethernet power supply.  
Locally via a 3Com local power supply.  
Before you begin the installation, determine which type of  
power supply the Network Jack will use.  
NOTE: For a list of power supplies that support the  
Using an Integrated Switch with Power Over Ethernet  
To use Power Over Ethernet, you must have a switch on the  
network that has Power Over Ethernet integrated into it. You  
must then determine if it is compatible with Capacitive Power  
Discovery Process (24V or 48V) or IEEE 802.3af.  
Using a Multi-port Ethernet Power Supply  
To use a multi-port Ethernet power supply, you must connect the  
power supply to your network, as shown in the illustration on  
page 11.  
10  
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Installing the Network Jack  
The multi-port Ethernet power supply from 3Com connects  
to an existing Ethernet or Fast Ethernet infrastructure with  
standard Category 5 or Category 5e UTP cabling, and powers  
up to 24 Network Jacks. See “Obtaining Optional Components”  
on page 7 for ordering information. For complete installation  
instructions, see the multi-port Ethernet power supply  
documentation.  
Network  
switch  
Wiring closet  
To network  
hub/switch  
To  
Network  
Jack  
Multi-port Ethernet  
power supply  
1
2
3
4
11  
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Installation Guide  
Using a Single-port Ethernet Power Supply  
To use a single-port power supply, connect the power supply to  
the network hub or switch and to the Network Jack, as shown in  
the following illustration. See “Obtaining Optional Components”  
on page 7 for ordering information. For complete installation  
instructions, see the single-port Ethernet power supply  
documentation.  
Network  
switch  
Wiring closet  
To electrical  
outlet  
To network  
hub/switch  
To  
Network  
Jack  
1
2
3
4
Using the 3Com Local Power Supply  
To use the local power supply, make sure you have an electrical  
outlet near the site where the Network Jack will be installed.  
12  
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Installing the Network Jack  
Setting the Power Over Ethernet Dip Switches  
If your network switch or power supply supports Power Over  
Ethernet, you must set the dip switches on the Network Jack  
to the appropriate setting: Capacitive Power Discovery/24V,  
Capacitive Power Discovery/48V, or IEEE 802.3af.  
NOTE: If you are not using Power Over Ethernet to  
power the Network Jack, skip this section. Go to  
“Installing the Adapter Plate and Pass-Through Ports”  
on page 15 to continue.  
WARNING: Before setting the dip switches, make sure  
that power to the Network Jack is off.  
Do not change dip switches 1 and 2 from their factory  
default settings (OFF). Changing these settings may  
result in performance degradation.  
1
On the back of the Network Jack, remove the dip switch cover.  
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Dip switch cover  
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Installation Guide  
2
Set the appropriate dip switches (labeled 3 and 4) for the  
type of Power Over Ethernet supported. The default setting  
is IEEE 802.3af-compatible Power Over Ethernet.  
Dip Switch  
Numbers  
Power Over Ethernet Supported  
Setting  
Capacitive Power Discovery/24V Ethernet  
Power Source  
4 (ON)  
3 (ON)  
4
3
2
1
ON  
Capacitive Power Discovery/48V Ethernet  
Power Source  
4 (ON)  
3 (OFF)  
4
3
2
1
ON  
IEEE 802.3af-compatible Power Over  
Ethernet  
4 (OFF)  
3 (OFF)  
4
3
2
1
ON  
3
Replace the dip switch cover.  
14  
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Installing the Network Jack  
Installing the Adapter Plate and Pass-Through Ports  
If you want to install the blank adapter plate, or if you want to  
use pass-through ports for connecting an analog or PBX digital  
telephone or for setting up a connection to a separate network  
segment, purchase supported connectors and install them on  
the appropriate Network Jack adapter plate (included with the  
single pack; available for purchase separately with the 20-pack).  
For a list of connectors that are supported with the Network Jack  
NOTE: If you are not planning on installing the adapter  
plate and pass-through ports, skip this section. Go to  
“Planning the Installation” on page 17 to begin the  
installation.  
1
Pull the network cable(s) from the wiring closet to the  
location of the Network Jack.  
15  
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Installation Guide  
2
Thread the network cable(s) through the empty slot on the  
Network Jack.  
Wall  
To wiring  
closet  
3
Terminate the end of the network cable(s) with the  
connector(s) you purchased separately.  
Refer to the connector manufacturers instructions for  
terminating the cable. Be sure to test end-to-end system  
functionality and verify that it is working.  
4
5
Snap the connector(s) into the appropriate adapter plate.  
Each adapter plate is labeled with the name of a connector’s  
manufacturer. Be sure to use the adapter plate that matches  
the manufacturer of your connector(s).  
Mount the adapter plate to the Network Jack using the two  
adapter plate screws provided.  
16  
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Installing the Network Jack  
Planning the Installation  
When installed, the back of the Network Jack extends into a wall  
or cubicle opening 1.5 inches. Because the depth of some wall  
and cubicle openings differ, observe the following requirements  
and recommendations before installing the Network Jack:  
I
Make sure the wall or cubicle opening where the Network  
Jack is being installed complies with the NEMA-WD6  
standard, as described below.  
1.750"  
(44.45 mm)  
3.28125"  
(83.31 mm)  
reference  
2.8125"  
(71.44 mm)  
Screw holes  
17  
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Installation Guide  
I
Make sure the distance between the back of the Network  
Jack and the inside of the wall or cubicle opening is at least  
1.5 inches (3 inches is recommended).  
NOTE: Some cubicle openings have a depth of 1.2  
inches. In this case, install the Network Jack using the  
extension ring (available for purchase separately; see  
“Obtaining Optional Components” on page 7) to obtain  
the minimum 1.5-inch depth.  
If installing into a wall junction box, make sure there is  
enough space between the back of the Network Jack and  
the inside of the junction box to maintain an acceptable  
bend radius on the cable. If you encounter interference  
or need additional clearance between the Network Jack  
and where it sits inside the junction box, use the  
extension ring.  
I
To ensure proper horizontal cabling functionality, adhere to  
the following network cabling standards during installation:  
I
ANSI/TIA/EIA-568  
Commercial Building Telecommunications Cabling Standard  
I
ANSI/TIA/EIA-569  
Commercial Building Standard for Telecommunications  
Pathways and Spaces  
18  
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Installing the Network Jack  
Setting up the Network Cabling at Your Site  
The network cabling at your site (from the wiring closet to the  
wall or cubicle opening) may already be installed. If it is not,  
install the cabling following these general guidelines.  
CAUTION: It is recommended that a professional cable  
installer performs these procedures. Be sure to adhere  
to local safety and regulatory codes during the cable  
installation.  
1
2
Connect one end of an Ethernet cable to your network.  
Usually, this connection is done in a network wiring closet,  
via the patch panel.  
Terminate the other end of the cable at the location where  
the Network Jack is being installed (using either a female or  
male RJ-45 connector).  
Refer to the connector manufacturers instructions for  
terminating the cable. Be sure to test the connector and  
verify it is working.  
Connecting the Network Jack to the Network  
The method for connecting the Network Jack to the network  
is determined by how your network cable is terminated (as  
described in the previous section, “Setting up the Network  
Cabling at Your Site”).  
CAUTION: Make sure the port on the network switch to  
which the Network Jack is connected is configured as a  
standard MDI-X port.  
19  
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Installation Guide  
I
If the end of the cable is terminated with a female RJ-45  
connector, use the RJ-45 coupler cable included in the  
package to connect the Network Jack to the network cable  
(recommended installation.)  
Wall  
To wiring  
closet  
Network  
cable  
1
2
3
RJ-45  
coupler cable  
4
20  
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Installing the Network Jack  
I
If the end of the cable is terminated with a male connector,  
connect the network cable directly into the Ethernet  
uplink port.  
Wall  
To wiring  
closet  
1
2
3
4
Network  
cable  
21  
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Installation Guide  
Mounting the Network Jack  
After connecting the Network Jack to the network, use the two  
provided screws to mount the Network Jack in any standard  
NEMA-WD6 cubicle opening or wall outlet.  
If the cubicle or wall opening has a depth of fewer than five  
inches, does not support the NEMA-WD6 standard, or does not  
have pre-drilled screw holes, mount the Network Jack using the  
extension ring, as shown below.  
Wall  
Wall  
Extension ring  
1.2"  
1.5"  
.3"  
Standard  
wall mount  
Extension ring  
wall mount  
NOTE: Make sure the vents along the edges of the  
Network Jack faceplate are clear of any obstructions.  
22  
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Installing the Network Jack  
Connecting the Local Power Supply (Optional)  
If your network does not support Power Over Ethernet, or if you  
are not using a single-port or multi-port Ethernet power supply,  
you must purchase a local power supply from 3Com (see  
“Obtaining Optional Components” on page 7). Plug the local  
power supply into the power connector located on the bottom  
of the Network Jack, and then plug it into any standard electrical  
outlet.  
CAUTION: Use the local power supply available from  
3Com. Failure to do so may result in damage to the  
Network Jack, or may result in a hazardous situation.  
Connecting Devices to the Network Jack  
After the Network Jack is installed and mounted, connect your  
networking devices (such as computers, printers, etc.) to any of  
the four switched ports on the front of the Network Jack.  
If you installed the adapter plate with pass-through ports,  
connect the appropriate device(s) to the port(s).  
23  
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Installation Guide  
Checking the LEDs  
You can verify the Network Jack installation by checking the LEDs.  
LED  
Description  
I
On—The Network Jack is connected to the network  
and a link has been established.  
I
Off—There is no connection to the network.  
(LAN)  
I
I
On—The Network Jack is receiving power (local or  
via the network).  
Off—The Network Jack is not receiving power.  
(Power)  
Troubleshooting the Network Jack  
If you encounter problems with the Network Jack:  
I
Verify the Network Jack is receiving power by viewing the Power  
LED (it should be lit). If the Power LED is not lit, make sure the:  
I
Power Over Ethernet dip switches are set correctly (for  
either Capacitive Power Discovery Process 24V or 48V  
or IEEE 802.3af), if your network supports  
Power Over Ethernet. See “Setting the Power Over  
Ethernet Dip Switches” on page 13 for instructions.  
24  
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Troubleshooting the Network Jack  
If using Power Over Ethernet, make sure the  
other end of the network cable is plugged into a  
switch on the network that has Power Over  
Ethernet integrated into it, or one that feeds into  
an external midspan power supply that supports  
Power Over Ethernet.  
I
Local power supply is plugged into the Network Jack and  
into a working electrical outlet, if your network does not  
support Power Over Ethernet.  
I
Verify the Network Jack is connected to the network  
properly by viewing the Link LED (it should be lit). If the  
Link LED is not lit, make sure the network cable:  
I
Is terminated properly. Refer to the connector  
manufacturers instructions for terminating the cable.  
Be sure to test the connector and verify it is working.  
I
I
Has a valid connection to the network.  
Adheres to proper length and cabling specifications for  
your network.  
I
Make sure the port on the switch to which the Network Jack  
is connected is configured as a standard MDI-X port.  
25  
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Installation Guide  
Specifications  
.80"  
1.50"  
4.50"  
2.75"  
2.30"  
Hardware  
Power consumption  
5 watts without power forwarding  
Maximum 13 watts with power forwarding  
(depending on the device drawing power)  
Network Interface  
10 Mbps Ethernet  
10BASE-T  
Ethernet IEEE 802.3 industry standard for  
a 10 Mbps baseband CSMA/CD local area  
network  
100 Mbps Ethernet  
100BASE-TX  
Ethernet IEEE 802.3u industry standard for  
a 100 Mbps baseband CSMA/CD local area  
network  
26  
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Specifications  
Performance  
Auto-negotiation  
Communication speed (10 Mbps or 100 Mbps)  
and duplex mode (full or half) is determined  
through auto-negotiation with the attached  
devices. The Network Jack attempts to negotiate  
the fastest connection possible (100 Mbps  
full-duplex).  
Environment  
Operating temperature 32˚ to 104˚ F (0˚ to 40˚ C)  
Storage temperature  
Operating humidity  
Storage humidity  
Operating Altitude  
Storage Altitude  
-22˚ to 194˚ F (-3˚- to 90˚ C)  
10-90% noncondensing  
10-90% noncondensing  
8,000 ft  
20,000 ft  
Standards Conformance  
IEEE 802.3 10BASE-T, 100BASE-TX and auto-negotiation  
Power Over Ethernet (Capacitive Power Discovery Process and IEEE 802.3af)  
Power forwarding (IEEE 802.3; 6 watts, 48 volts)  
27  
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Installation Guide  
Features  
Power Over Ethernet  
Compatible with IEEE 802.3af and Capacitive  
Power Discovery Process  
Local power supply  
Required for networks that do not support Power  
Over Ethernet  
Voice Over IP (VoIP)  
Power forwarding  
Compatible with VoIP standard.  
Port number 1 can be used with any standard  
networking device as well as to power a VoIP  
telephone on a network that uses IEEE 802.3af-  
compatible Power Over Ethernet.  
Contacting Technical Support  
3Com provides easy access to technical support information  
through a variety of services. This appendix describes these services.  
Information contained in this appendix is correct at time of  
publication. For the most recent information, 3Com recommends  
that you access the 3Com Corporation World Wide Web site.  
One-Year Free Installation Support  
3Com provides free installation and troubleshooting telephone  
support for this product for one (1) year from the date of purchase.  
Hours of operation are subject to change. See “Support from  
3Com” on page 31.  
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Contacting Technical Support  
Online Technical Services  
3Com offers worldwide product support 24 hours a day, 7 days  
a week, through the following online systems:  
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World Wide Web site  
3Com Knowledgebase Web Services  
3Com FTP site  
World Wide Web Site  
To access the latest networking information on the 3Com  
Corporation World Wide Web site, enter this URL into your  
Internet browser: http://www.3com.com/  
This service provides access to online support information, such  
as technical documentation and a software library, as well as  
support options that range from technical education to  
maintenance and professional services.  
3Com Knowledgebase Web Services  
This interactive tool contains technical product information  
compiled by 3Com expert technical engineers around  
the globe. Located on the World Wide Web at http://  
knowledgebase.3com.com, this service gives all 3Com  
customers and partners complementary, around-the-clock  
access to technical information on most 3Com products.  
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Installation Guide  
3Com FTP Site  
Download drivers, patches, software, and MIBs across the  
Internet from the 3Com public FTP site. This service is available  
24 hours a day, 7 days a week.  
To connect to the 3Com FTP site, enter the following  
information into your FTP client:  
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Host name: ftp.3com.com  
User name: anonymous  
Password: <your Internet e-mail address>  
NOTE: You do not need a user name and password with  
Web browser software, such as Netscape Navigator and  
Microsoft Internet Explorer.  
Support from Your Network Supplier  
If you require additional assistance, consult 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.  
When you contact your network supplier for assistance, have the  
following information ready:  
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Product model name, part number, and serial number  
A list of system hardware and software, including revision levels  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
If you are unable to consult your network supplier, see the  
following section on how to contact 3Com.  
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Contacting Technical Support  
Support from 3Com  
If you are unable to obtain assistance from the 3Com online  
technical resources or from your network supplier, 3Com offers  
technical telephone support services. To find out more about  
your support options, call the 3Com technical telephone support  
phone number:  
1 800 527 8677  
When you contact 3Com for assistance, have the following  
information ready:  
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Product model name, part number, and serial number  
A list of system hardware and software, including revision levels  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
Returning Products for Repair  
Before you send a product directly to 3Com for repair, you must  
first obtain an authorization number. Products sent to 3Com  
without authorization numbers will be returned to the sender  
unopened, at the sender’s expense. To obtain an authorization  
number, call:  
1 800 527 8677  
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Limited Warranty and Regulatory  
Compliance Information  
3Com Corporation Limited Warranty  
This warranty applies to customers located in the United States, Australia, Canada  
(except Quebec), Ireland, New Zealand, U.K., and other English language countries,  
and countries for which a translation into the local language is not provided  
3Com® Network Jack  
HARDWARE  
3Com warrants to the end user ("Customer") that this hardware product will be  
substantially free from material defects in workmanship and materials, under normal  
use and service, for the following length of time from the date of purchase from  
3Com or its authorized reseller:  
Limited Lifetime, for as long as the original Customer owns the product or for 5  
years after product discontinuance, whichever occurs first (not transferable to a  
subsequent end user). FOR NON-US CUSTOMERS: Where a limited lifetime warranty  
is not permitted by local law, a 10 year warranty period shall be given by 3Com. The  
duration of this warranty shall be modified where necessary to meet any minimum  
warranty period required by law.  
3Com’s sole obligation under this express warranty shall be, at 3Com’s option and  
expense, to repair the defective product or part, deliver to Customer an equivalent  
product or part to replace the defective item, or if neither of the two foregoing  
options is reasonably available, refund to Customer the purchase price paid for the  
defective product. All products that are replaced will become the property of 3Com.  
Replacement products or parts may be new or reconditioned. 3Com warrants any  
replaced or repaired product or part for ninety (90) days from shipment, or the  
remainder of the initial warranty period, whichever is longer.  
SOFTWARE  
3Com warrants to Customer that each software program licensed from it, except as  
noted below, will, if operated as directed in the user documentation, substantially  
achieve the functionality described in the user documentation for a period of ninety (90)  
days from the date of purchase from 3Com or its authorized reseller. No updates or  
upgrades are provided under this warranty. 3Com's sole obligation under this express  
warranty shall be, at 3Com's option and expense, to refund the purchase price for the  
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Limited Warranty and Regulatory Compliance Information  
software product or replace the software product with software which meets the  
requirements of this warranty as described above. Customer assumes responsibility for  
the selection of the appropriate programs and associated reference materials.  
3Com makes no warranty or representation that its software products will meet  
Customer’s requirements or work in combination with any hardware or software  
products provided by third parties, that the operation of the software products will  
be uninterrupted or error free, or that all defects in the software products will be  
corrected. For any third party products listed in the 3Com software product  
documentation or specifications as being compatible, 3Com will make reasonable  
efforts to provide compatibility, except where the non-compatibility is caused by a  
"bug" or defect in the third party's product or from use of the software product not  
in accordance with 3Com’s published specifications or user manual.  
THIS 3COM PRODUCT MAY INCLUDE OR BE BUNDLED WITH THIRD PARTY  
SOFTWARE. THE WARRANTY PROVISIONS OF THIS DOCUMENT DO NOT APPLY TO  
SUCH THIRD PARTY SOFTWARE. IF A SEPARATE END USER LICENSE AGREEMENT  
HAS BEEN PROVIDED FOR SUCH THIRD PARTY SOFTWARE, USE OF THAT  
SOFTWARE WILL BE GOVERNED BY THAT AGREEMENT. FOR ANY APPLICABLE  
WARRANTY, PLEASE REFER TO THE END USER LICENSE AGREEMENT GOVERNING  
THE USE OF THAT SOFTWARE.  
OBTAINING WARRANTY SERVICE  
Customer must contact a 3Com Corporate Service Center or an Authorized 3Com  
Service Center within the applicable warranty period to obtain warranty service  
authorization. Dated proof of purchase from 3Com or its authorized reseller may be  
required. A User Service Order (USO), Return Material Authorization (RMA) or Service  
Repair Order (SRO) number will be issued. This number must be marked on the outside  
of the package sent to 3Com’s Corporate Service Center. The product must be  
packaged appropriately for safe shipment and sent prepaid. It is recommended that  
returned products be insured or sent by a method that provides for tracking of the  
package. Responsibility for loss or damage does not transfer to 3Com until the  
returned item is received by 3Com. 3Com will retain risk of loss or damage until the  
item is delivered to Customer. For non-US Customers, the word 'prepaid' shall be  
omitted where this requirement is not permitted by law. The allocation of responsibility  
for loss or damage stated shall be subject to any mandatory legal requirements.  
3Com shall not be responsible for any software, firmware, information, or memory  
data of Customer contained in, stored on, or integrated with any products returned  
to 3Com for repair, whether under warranty or not.  
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Limited Warranty and Regulatory Compliance Information  
WARRANTIES EXCLUSIVE, WARRANTY DISCLAIMER  
TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND  
REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS  
OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW,  
STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, WARRANTIES,  
TERMS OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR  
PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION, NON-  
INFRINGEMENT AND QUIET ENJOYMENT, ALL OF WHICH ARE EXPRESSLY  
DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO  
ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE,  
INSTALLATION, MAINTENANCE OR USE OF THIS PRODUCT.  
3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND  
EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE  
PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD  
PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING,  
UNAUTHORIZED ATTEMPTS TO OPEN, REPAIR OR MODIFY THE PRODUCT, OR ANY  
OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE,  
LIGHTNING, POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.  
LIMITATION OF LIABILITY  
TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND  
ITS LICENSORS AND SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR  
TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT,  
SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR  
PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER  
FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE,  
INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION  
OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN  
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO  
REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S  
OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF  
ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.  
Some countries, states, or provinces do not allow the exclusion or limitation of  
implied warranties or the limitation of incidental or consequential damages for  
certain products supplied to consumers, or the limitation of liability for death or  
personal injury, so the above limitations and exclusions may be limited in their  
application to you. When the implied warranties are not allowed to be excluded in  
their entirety, they will be limited to the duration of the applicable written warranty.  
This warranty gives you specific legal rights which may vary depending on local law.  
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Limited Warranty and Regulatory Compliance Information  
GOVERNING LAW  
This Limited Warranty shall be governed by the laws of the State of California,  
U.S.A., and by the laws of the United States, excluding their conflicts of laws  
principles. The United Nations Convention on Contracts for the International Sale of  
Goods is hereby excluded in its entirety from application to this Limited Warranty.  
3Com Corporation  
5400 Bayfront Plaza  
P.O. Box 58145  
Santa Clara, CA 95052-8145  
(408) 326-5000  
Rev. 6/14/01  
v8.3  
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Limited Warranty and Regulatory Compliance Information  
FCC Class A Verification Statement  
WARNING: 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, and the Canadian  
Department of Communications Equipment Standards entitled, “Digital Apparatus,”  
ICES-003. These limits are designed to provide reasonable protection against  
harmful interference in a commercial installation. 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, in which case, the user will be required to correct the interference at  
the user’s own expense.  
Changes or modifications not expressly approved by 3Com could void the user’s  
authority to operate this equipment.  
FCC Declaration of Conformity  
We declare under our sole responsibility that the  
Model:  
Description:  
NJ100  
Network Jack  
to which this declaration relates, is in conformity with the following standards or  
other normative documents:  
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ANSI C63.4-1992 Methods of Measurement  
Federal Communications Commission 47 CFR Part 15, subpart B  
3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145  
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