3COM Cable Modem External User Manual

HomeConnect

TM

Cable
Modem External with
USB Getting Started
Guide

http://www.3com.com/

Part No. 10038811
Published June 2000

3Com Corporation
3800 Golf Rd.
Rolling Meadows, IL
60008

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 written permission from
3Com Corporation.

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

3Com Corporation provides this documentation without warranty of any kind, either express or
implied, including, but not limited to, 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.

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 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 this documentation and the software described
herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private
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 contained in, or delivered to you in
conjunction with, this User Guide.

Copyright © 2000 3Com Corporation. All rights reserved.

3Com and the 3Com logo are registered trademarks, and HomeConnect and Connections are
trademarks of 3Com Corporation.

Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation in the US
and/or other countries.

All other company and product names may be trademarks of their respective companies.

All specifications are subject to change without notice.

C

ONTENTS

EFORE YOU BEGIN

B

1

Introduction 1
Cable Modem Features 1
Contacting Your Local Cable Service Provider 2
Preparing Your Workspace 3
You Will Need These Items 4

Supplied 4
Also Needed 4

NSTALLATION

USB I

2

Deciding Which Installation Process to Use 5
Using USB with the Windows 98 Operating System 5

Using the Cable Connections™ CD 12
Uninstalling the Cable Modem (Windows 98 Operating

System Only) 12

Using USB with the Windows 2000 Operating System 13

Uninstalling the Cable Modem (Windows 2000 Operating
System Only) 17

Troubleshooting the USB Installation 18

THERNET INSTALLATION

E

3

Deciding Which Installation Process to Use 25
Setting Up the Computer to Use an Ethernet Connection 25

Configuring the TCP/IP Protocol 25
Connecting the Cable Modem 31
Using the Cable Connections

Troubleshooting the Ethernet Installation 32

ABLE MODEM OPERATION

C

4

Interpreting The Cable Modem’s LEDs 39

LEDs on the Front of the Modem 39
LED on the Back of the Modem 40

CD 32

Connectors and Switches on the Back of the Cable Modem 41

IEWING THE CABLE MODEM’S CONFIGURATION

V

5

UPPORT RESOURCES

S

6

Support Resources 47

World Wide Web 47
90-Day Free Installation Support 47
Technical Support Hotline 47
If You Are Still Having Problems 47
If You Need to Return the Modem to Us 48

EGULATORY INFORMATION AND LIMITED WARRANTY

R

7

Manufacturers Declaration of Conformity 49

FCC Declaration of Conformity 49

FCC Class B Statement 49
FCC Notice: Radio and Television Interference 50
UL/c UL Listing: 51
Canadian Notice: 51
INTERNATIONAL DECLARATION OF CONFORMITY 52

Electromagnetic Compatibility 52

Safety (Low Voltage Directive) 52
Special Notes: 53

Japan 53

Performance Specifications 53

Export Notices 53

License Agreement 53
3Com Corporation Limited Warranty 54

Hardware 54

Software 54

Year 2000 Warranty 55

Obtaining Warranty Service 56

WARRANTIES EXCLUSIVE 57

LIMITATION OF LIABILITY 57

Disclaimer 58

Governing Law 58

1

Introduction

You have just purchased a modem featuring a pioneering
new technology, making Internet access possible at speeds
previously only imagined. This external cable modem is one
part of a comprehensive communications system that
utilizes the cable television network to deliver high-speed
data to your computer. Data is requested and sent over the
cable television network at burst rates of up to 38
megabits per second (Mbps)*. This chapter explains how to
prepare your computer system for cable modem
installation.

* Actual speeds will vary depending on computer
hardware, applications, service offered by your cable
service provider, and network traffic.

B

EFORE YOU BEGIN

Cable Modem Features

■

Cable line bandwidth allows user data rates of up to 38
megabits per second (Mbps)*, faster than 56K analog
modems, ISDN, or ADSL.

■

Two-way design means that the cable modem both
sends and receives data over the cable line.

■

Plug-and-play USB operation ensures easy setup and
installation.

■

DOCSIS-compliance ensures interoperability with cable
suppliers.

■

3Com’s extensive technical support organization
provides you with the quick answers you need to get up
and running.

* NOTE: Please note that the following factors affect the
speeds you may experience: (1) your computer equipment
and configuration, including the speed of your processor,
the amount of RAM on your system, and your available

2

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EFORE YOU BEGIN

1: B

C

hard disk space; (2) applications running simultaneously
with the modem which use varying amounts of your
computer’s resources; (3) the capacity of the Internet
service you order from your provider; (4) the level of
network traffic, which varies depending on when and
where you go online.

Contacting Your Local Cable Service Provider

In order to use your cable modem, you need to set up an
Internet access account with your local cable service
provider.

Before contacting your provider to set up an account, have
the following information handy:

■

The modem’s serial number. The serial number appears

on the white bar code label on the back of the modem

and consists of 10 characters preceded by the text

“SN=”. In the following example label image, the serial

number is 6LZ1377410.

■

Media Access Control (MAC) address. The MAC address

appears on the white bar code label on the back of the

modem and consists of 12 characters preceded by the

text “EA =”. In the following example label image, the

MAC address is 00104B377410. Write both of these

numbers in the following blanks for future reference.

Serial number: SN= __________________

MAC address: EA = __________________

You should now contact your local cable service provider
and verify that:

The cable service to your home supports two-way

■

cable modem access. If your cable service provider

does not provide two-way service, this modem will not

Preparing Your Workspace

be able to communicate with your cable service
provider’s Internet access service. You should
immediately consult your cable service provider and
place of purchase to determine the proper 3Com
modem to use. You can also visit the following URL for
additional information:

http://www.3com.com/cablemodem

You have a cable line near your PC and it has been

■

prepared for cable modem service. If you do not
have a cable line in your home that supports two-way
cable modem access, or if your current cable connection
is not conveniently located near your computer, your
cable service provider can install one. If you use your
current cable line for cable television access, your cable
service provider can also install an additional line for use
with your cable modem.

Your cable service provider has set up your cable

■

Internet access account. Your cable service provider
will set up an Internet access account that will allow you
to send and receive e-mail, access the World Wide Web,
and receive other Internet services. This account must
be set up before you can use your cable modem.

®

cable

3

Preparing Your Workspace

■

Position your computer so that it is located near the
wall cable outlet.

■

Position the cable modem so that it is located near the
computer and the wall cable outlet. There should be
plenty of room to guide the cables away from the
modem without crimping them.

■

Do not restrict the airflow around the modem.

■

Ensure that the temperature in the room where the
cable modem will be operating is between 0 and 40°C
(32 and 104°F). Relative humidity should be between
5% and 90%, non-condensing.

■

Familiarize yourself with all of the materials supplied
with the modem. Please read these installation
instructions thoroughly before installing the modem.

4

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EFORE YOU BEGIN

1: B

C

CAUTION: Your cable service provider will provide a cable
connection. Do not attempt any rewiring without first
contacting your cable service provider.

You Will Need These Items

Supplied

■

Cable modem

■

Cable modem power adapter

■

Ethernet cable

■

USB cable

■

This Getting Started Guide

■

The Cable ConnectionsTM CD, which contains:

■

The software drivers necessary for installation using
the USB port

■

Valuable free software products

See “Using the Cable Connections CD” for more
information.

Also Needed

■

■

■

■

■

To use the cable modem’s USB port:

■

A PC running Windows 98 or Windows 2000
operating system. Currently, USB does not support
the Macintosh operating system.

■

An active USB port on your computer.

To use the cable modem’s Ethernet port:

■

A PC running Windows 95 (or later), or a Macintosh
computer running System 7.5 (or later).

■

An active Ethernet port on your computer.

■

TCP/IP protocol installed. See the following chapter
for more information on installing the TCP/IP

protocol.
Windows 95/98/2000 CD or diskettes.
An active two-way cable line.
An adjustable wrench for securing the cable line to the

modem.

USB I

NSTALLATION

2

Deciding Which Installation Process to Use

The 3Com® HomeConnect™ cable modem allows you to
connect to the Internet using either the USB port or the
Ethernet port. Be sure to follow the instructions provided
for the port that you want to use.

Using the USB port to connect to the Internet allows you to
install the cable modem more quickly and easily than
connecting to the Internet using the Ethernet port, because
you do not need to install a network interface card (NIC).
USB, however, only allows you to connect one computer to
the cable modem.

Using the Ethernet port allows you to use a hub to connect
multiple computers to the cable modem. To do this, you
may need to obtain additional IP addresses from your cable
service provider.

CAUTION: You cannot use the USB and Ethernet
connections simultaneously. Therefore, you should not
have the USB cable and the Ethernet cable plugged into
the cable modem at the same time. Having the USB and
Ethernet cables plugged into the cable modem at the same
time might prevent you from accessing the Internet.

See Chapter 3 “Ethernet Installation” to set up the
Ethernet connection.

Using USB with the Windows 98 Operating System

To use the USB port with Windows 98:

1 Power on the computer.

2 Use the illustration on page 23 as a guide to make the

following connections:

a Connect the cable line to the cable modem’s CATV

cable connector. Be careful not to bend the wire in the

6

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NSTALLATION

2: USB I

C

center of the cable line when you connect it to the cable
modem. After hand-tightening the CATV cable
connector, use the adjustable wrench to firmly tighten it.
Be careful not to over-tighten the connector or you may
damage either the connector or the cable modem. If
you plan to have the cable line connected to a television
as well as the cable modem, you will need a cable line
splitter (not included).

b Connect the USB cable line to the cable modem’s USB

port and to the USB port on the computer.

c Plug the cable modem’s power adapter into a wall outlet

or surge protector and into the cable modem’s power
jack.

Windows detects the cable modem. The Found New
Hardware screen appears.

3 When the Add New Hardware Wizard screen appears,

insert the Cable Connections CD into the computer’s
CD-ROM drive.

Using USB with the Windows 98 Operating System

4 Click Next.

7

5 Select Search for the best driver for your device.

(Recommended) and click Next.

8

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NSTALLATION

2: USB I

C

6 Check the CD-ROM drive check box and click Next to

search for the necessary driver files.

7 If Windows finds an updated driver, select The updated

driver (Recommended) 3Com HomeConnect Cable Modem
and click Next.

Using USB with the Windows 98 Operating System

8 Click Next. The computer automatically copies the

necessary driver files from the CD.

The computer finishes copying the driver files and prompts
you to insert the Windows 98 CD into the CD-ROM drive.

9

9 Insert the Windows 98 CD and click OK. If the Copying

Files dialog box appears, make sure that you have inserted
the correct CD and that you have pointed it to the correct
path. In the following example, the path is E:\win98, where
E represents the CD-ROM drive. If necessary, replace the E
with the letter of your CD-ROM drive. After you point the
Add New Hardware Wizard to the correct path, click OK.

10

2: USB I

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NSTALLATION

The computer automatically copies the necessary system
files.

10 Click Finish after the computer has copied the necessary

files.

Using USB with the Windows 98 Operating System

The System Settings Change dialog box opens.

11

11 Click Ye s to restart the computer.

12 Verify that the cable modem is operating properly. When

the modem is operating properly, the cable modem Link
Status and Power LEDs are lighted a solid green.

If you are powering up the cable modem for the first time,
allow 15 minutes for this process to finish. See “Cable

2: USB I

12

C

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NSTALLATION

Modem Operation” for a more in-depth description of the
front panel LED indicators.

Using the Cable

Connections

™

CD

The included Cable Connections CD contains the software
drivers necessary for installation using the USB port and
valuable free software products.

After you have completed the entire USB installation
process for the cable modem, you can install the Cable
Connections CD. Installing the Cable Connections CD gives
you access to the free software products.

To install the Cable Connections CD, follow the instructions
on the CD.

Uninstalling the Cable Modem (Windows 98 Operating
System Only)

To uninstall the cable modem:

1 Close all open applications.

2 Click Windows Start and select Settings.

3 Click Control Panel.

4 Double-click Add/Remove Programs.

5 Select 3Com HomeConnect Cable Modem. Make sure you

have selected the software you want to delete. If you

Using USB with the Windows 2000 Operating System

accidentally select the wrong software and click
Add/Remove, the Windows deletes the software and you
will have to re-install it.

6 Click Add/Remove. The system removes the 3Com

HomeConnect Cable Modem software.

7 The system prompts you to restart the computer. Click Yes .

8 Click Windows Start, then click Shut Down.

9 Select Restart the Computer and click Yes to restart the

computer.

Using USB with the Windows 2000 Operating System

To use the USB port with Windows 2000:

1 Power on the computer.

2 Use the illustration on page 23 as a guide to make the

following connections:

a Connect the cable line to the cable modem’s CATV cable

connector. Be careful not to bend the wire in the center
of the cable line when you connect it to the cable
modem. After hand-tightening the CATV cable
connector, use the adjustable wrench to firmly tighten it.
Be careful not to over-tighten the connector or you may
damage either the connector or the cable modem. If
you plan to have the cable line connected to a television
as well as the cable modem, you will need a cable line
splitter (not included).

13

b Connect the USB cable line to the cable modem’s USB

port and to the computer’s USB port.

c Plug the cable modem’s power adapter into a wall outlet

or surge protector and into the cable modem’s power
jack. The Found New Hardware screen appears.

14

2: USB I

C

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NSTALLATION

3 The Found New Hardware Wizard screen appears. Insert

the included Cable Connections CD into the CD-ROM drive
and Click Next.

4 Select Search for a suitable driver for my device

(recommended) and click Next.

Using USB with the Windows 2000 Operating System

5 Check the CD-ROM drives check box and click Next to

search for the necessary driver files.

15

6 The Found New Hardware Wizard displays the search

results. Click Next to install the driver files for the cable
modem.

16

2: USB I

C

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NSTALLATION

7 The Digital Signature Not Found screen appears. Click Ye s

to continue the driver installation.

8 The Found New Hardware Wizard completes the driver

installation. Click Finish to close the Found New Hardware
Wizard.

9 Verify that the cable modem is operating properly. When

the modem is operating properly, the cable modem Link

Status and Power LEDs are lighted solid green.

Using USB with the Windows 2000 Operating System

If you are powering up the cable modem for the first time,
allow 15 minutes for this process to finish. See “Cable
Modem Operation” for a more in-depth description of the
front panel LED indicators.

Uninstalling the Cable Modem (Windows 2000 Operating
System Only)

To uninstall the cable modem while using Windows 2000:

1 Close all open applications.

2 Click Windows Start.

3 Select Settings.

17

4 Click Control Panel.

5 Double-click Add/Remove Programs. The Add/Remove

Hardware Wizard screen appears.

6 Click Next.

7 Select Uninstall/Unplug a device and click Next.

8 Select Uninstall a device. Choose this option to

permanently uninstall a device and its driver.

9 Click Next.

10 Select 3Com HomeConnect Cable Modem and click Next.

2: USB I

18

C

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NSTALLATION

11 Verify that you have selected 3Com HomeConnect Cable

Modem then select Yes, I want to uninstall this device.

12 Click Next.

13 Click Finish when Windows informs you that it has

successfully uninstalled the selected device.

Troubleshooting the USB Installation

I cannot access my e-mail or Internet service.

■

Check all connections. Make sure the cable line is
securely connected to the cable jack on the back of the
modem. Verify that the USB cable is securely plugged
into both the modem and the computer. Make sure the
power adapter is properly plugged into both the
modem and a wall outlet or surge protector. If the cable
modem is properly connected, the Cable Modem Power
and Link Status indicator lights on the front of the
modem should all be a solid color.

■

Power cycle the cable modem by unplugging the power
jack from its electrical outlet and then plugging it back
into the outlet. Then try reconnecting to your cable
service provider.

Troubleshooting the USB Installation

■

Power off the computer. Power cycle the computer by
unplugging the computer from its electrical outlet and
then plugging it back into the outlet. Then try
reconnecting to your cable service provider.

■

Call your cable service provider to verify that their
service is two-way. This modem is designed for use with
two-way cable plants.

■

If you are using a cable line splitter so that you can
connect the cable modem and a television at the same
time, try removing the splitter and reconnecting the
cables so that the cable modem is connected directly to
the cable wall jack. Then try reconnecting to your cable
service provider.

■

If you use the Windows 98 operating system, verify that
you have fewer than five TCP/IP bindings. Click
Windows Start, select Settings, and click Control Panel.
Double-click Network and count the number of TCP/IP
bindings listed. You cannot have more than five TCP/IP
bindings for the cable modem to operate. You must
remove enough TCP/IP bindings so that you have no
more than five TCP/IP bindings. After you remove the
extra bindings, uninstall the cable modem. Reboot the
computer and re-install the cable modem, following the
instructions in this guide.

■

Release and renew the computer’s IP address.

To release and renew the IP address for the
Windows 95/98 operating system:

19

a Click Windows Start and click Run.

b Typ e

winipcfg

in the Open field and click OK. The IP

Configuration screen appears.

20

2: USB I

C

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NSTALLATION

c In the Ethernet Adapter Information group area, click

the drop down arrow and select 3Com HomeConnect

Cable Modem.

d Click Release. The IP address changes to 0.0.0.0.

e Click Renew to refresh the IP address. The refreshed

address may or may not be the same as the original IP
address.

To release and renew the IP address for the
Windows 2000 operating system:

a Click Windows Start and select Programs, then

Accessories.

b Click Command Prompt.

c At the command prompt (C:\),

type

ipconfig /release

and press the Enter key

(notice that there is a space between ipconfig and

/release).

Troubleshooting the USB Installation

d After the system releases the IP address, at the

command prompt type

ipconfig /renew

and press the
Enter key (notice that there is a space between ipconfig
and /renew).

21

e Exit the Command Prompt screen to return to the

Windows desktop.

The Cable Status LED never stops blinking.

The signal from your cable service provider’s equipment
may be too weak or the cable line may not be properly
attached to the modem. If the cable line is properly
connected to the modem, call your cable service provider
to verify whether a weak signal is the problem.

All four of the LEDs on the front of my cable modem
are lighted and blinking.

Call your cable service provider or 3Com’s technical support
for assistance.

22

2: USB I

C

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NSTALLATION

All of the LEDs on the front of my modem look right,
but I still cannot access the Internet.

■

If the Power, Link Status LEDs, and Data Rate LEDs are
lighted, the cable modem is operating properly. Try
shutting down the computer and then turning it back
on. This will cause the computer to re-establish
communications with your cable service provider’s
computer.

■

Power cycle the cable modem by removing the power
adapter from its outlet and then plugging it back into
the outlet. Then try reconnecting to your cable service
provider.

■

You may not have installed TCP/IP properly (for
Windows 95 and 98SE: winipcfg; for Windows 2000:
ipconfig), or the TCP/IP parameters provided by your
cable service provider may not be correct for your
computer.

■

If you are using a cable line splitter so that you can
connect the cable modem and a television at the same
time, try removing the splitter and reconnecting the
cables so that the cable modem is connected directly to
the cable wall jack. Then try reconnecting to your cable
service provider.

The power on my modem goes on and off
sporadically. The Link Status light never stops
blinking.

You may be using the wrong power adapter. Check that
the power adapter you are using is the one that came with
the cable modem.

Troubleshooting the USB Installation

23

24

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2: USB I

NSTALLATION

E

THERNET INSTALLATION

3

Deciding Which Installation Process to Use

The 3Com® HomeConnect™ cable modem allows you to
connect to the Internet using either the USB port or the
Ethernet port. Be sure to follow the instructions provided
for the port that you want to use.

Using the USB port to connect to the Internet allows you to
install the cable modem more quickly and easily than
connecting to the Internet using the Ethernet port, because
you do not need to install a network interface card (NIC).
USB, however, only allows you to use one Internet protocol
(IP) address per cable modem.

Using the Ethernet port allows you to use a hub to connect
multiple computers to the cable modem, and you can use
multiple IP addresses from your cable service provider.

CAUTION: You cannot use the USB and Ethernet
connections simultaneously. Therefore, you should not
have the USB cable and the Ethernet cable plugged into
the cable modem at the same time. Having the USB and
Ethernet cables plugged into the cable modem at the same
time might prevent you from accessing the Internet.

See Chapter 2 “USB Installation” to set up the USB
connection.

Setting Up the Computer to Use an Ethernet Connection

You can use the Ethernet port to connect to the Internet
with the following operating systems: Windows 95,
Windows 98, Windows 2000, or Macintosh 7.5 (or later).

Configuring the TCP/IP Protocol

If you are using a Macintosh computer, turn to the
instructions on page 25.

26

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THERNET INSTALLATION

Configuring the TCP/IP Protocol on a Windows PC

You need to have an Ethernet network interface card (NIC)
and the TCP/IP communications protocol installed on your
system before you install the cable modem. Follow these
instructions to verify that TCP/IP is installed and configured
correctly.

For the Windows 95/98 Operating System

1 Right-click the Network Neighborhood icon on the

Windows desktop and click Properties.

2 A list of installed network components appears. Look for

an entry named TCP/IP. This entry may be followed by an
arrow and a description of the NIC hardware device
installed in the computer.

Windows 95/98 TCP/IP Binding

If a similar entry is present, you can now connect the cable
modem. Go to “Connecting the Cable Modem” for the
instructions. However, if a similar entry is not present,
complete the following steps.

1 Click Add...

2 Click Protocol, and then click Add...

3 Click Microsoft in the Manufacturers: list and then select

TCP/IP in the Network Protocols: list.

4 Click OK.

Setting Up the Computer to Use an Ethernet Connection

27

For the Windows 2000 Operating System

1 Right-click the My Network Places icon on the Windows

desktop.

2 Right-click on Local Area Connection and click Properties.

3 A list of installed network components appears. Look for

an entry named TCP/IP.

Windows 2000 TCP/IP binding

If a similar entry is present, you can now connect the cable
modem. Go to “Connecting the Cable Modem” for the
instructions. However, if a similar entry is not present,
complete the following steps.

1 Scroll to the Internet Protocol (TCP/IP) option. Click to place

a check mark in the Internet Protocol check box.

2 Click OK.

Configuring the TCP/IP Protocol on a Macintosh

You need to make sure the TCP/IP communications
protocol and an Ethernet device is installed on the
computer before you install the cable modem. Many
Macintosh computers have Ethernet devices installed at the
factory.

1 Click the Apple icon in the upper left corner of the Finder.

Scroll down to Control Panels, and click TCP/IP.

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THERNET INSTALLATION

2 Click Edit on the Finder (gray bar) at the top of the screen.

Scroll down to the bottom of the menu and click User
Mode.

3 Click Advanced then click OK.

4 Click the Up/Down selector arrows (to the right of

Configure) and select Using DHCP Server.

Setting Up the Computer to Use an Ethernet Connection

5 Click Options. Then click Active.

In some cases, the Load only when needed check box does
not appear. If it is visible, click the box. A check mark
appears in the box.

6 Click OK.

29

7 Verify that the Use 802.3 box is unchecked (circled in the

following image). If there is a check mark in the box, click it
to remove the check mark. Then click Info in the lower left
corner.

30

3: E

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THERNET INSTALLATION

8 Verify that there is a hardware address listed in the TCP/IP

Info screen.

If there is, click OK and close the TCP/IP Control Panel (click
File and scroll down to click Close).

If there is no hardware address listed in the TCP/IP Info
screen, you must reset the computer’s Parameter RAM. To
do this, power off the Macintosh. With the power off,
simultaneously press and hold down the Command
(Apple), Option, P, and R keys on the keyboard. Keeping
those keys pressed, power on the Macintosh.

When the computer starts, you will hear the Apple chime.
Keep the keys pressed for at least three chimes, then
release the keys and allow the computer to start up. When
fully rebooted, ensure that all TCP/IP settings match those

Setting Up the Computer to Use an Ethernet Connection

in the preceding instructions. If the computer still does not
have a Hardware Address, please contact your local Apple
authorized dealer or Apple support.

Connecting the Cable Modem

1 Power off the computer.

2 Use the illustration on page 35 as a guide to make the

following connections:

■

Connect the cable line to the cable modem’s CATV
cable connector. Be careful not to bend the wire in
the center of the cable line when you connect it to
the cable modem. After hand-tightening the CATV
cable connector, use your adjustable wrench to
firmly tighten it. Be careful not to over-tighten the
connector or you may damage either the connector
or the cable modem. If you plan to have the cable
line connected to a television as well as to the cable
modem, you will need a cable line splitter (not
included).

■

Plug the cable modem’s power adapter into a wall
outlet or surge protector and into the cable
modem’s power jack.

■

Plug one end of the RJ-45 network cable into the
cable modem’s Ethernet port and the other end into
the existing NIC.

3 Verify that the cable modem starts up and initializes

properly. When the cable modem is operating properly, the
cable modem Link Status and Power LEDs are lighted a
solid green.

31

If you are powering up the cable modem for the first time,
allow 15 minutes for this process to complete. See “Cable

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THERNET INSTALLATION

Modem Operation” for a more in-depth description of the
front panel LED indicators.

4 Power on the computer. When installation is complete,

your setup should resemble the diagram on page 35.

Using the Cable Connections CD

You do not need to install the included Cable Connections
CD to use the Ethernet port on the cable modem. You will,
however, want to discover the valuable free software
products included on the CD.

To install the Cable Connections CD, follow the instructions
on the CD.

Troubleshooting the Ethernet Installation

I cannot access my e-mail or Internet service.

■

Check all connections. Make sure the cable line is
securely connected to the cable jack on the back of the
modem. Verify that the RJ-45 cable is securely plugged
into both the modem and the network interface card.
Make sure the power adapter is properly plugged into
the modem and into a wall outlet or surge protector. If
the cable modem is properly connected, the Cable
Modem Power, Cable Modem Status, and Link Status
indicator lights on the front of the modem should all be
a solid color.

■

Power cycle the cable modem by unplugging the power
jack from its electrical outlet and then plugging it back
into the outlet. Then try reconnecting to your cable
service provider.

■

Call your cable service provider to verify that their
service is two-way. This modem is designed for use with
two-way cable plants.

■

The network interface card or USB network interface
may be malfunctioning. Refer to its documentation for
troubleshooting information.

■

If you are using a cable line splitter so that you can
connect the cable modem and a television at the same
time, try removing the splitter and reconnecting the

Troubleshooting the Ethernet Installation

cables so that the cable modem is connected directly to
the cable wall jack. Then try reconnecting to your cable
service provider.

■

Check for a resource conflict. To do this, right-click the
My Computer icon on the Windows desktop. Then click
Properties. Click the Device Manager tab and look for a
yellow exclamation point or red X over the NIC in the
Network adapters field. If you see either, you have an
IRQ conflict. Refer to the manufacturer’s documentation
that came with your network interface card.

■

Make sure that TCP/IP is the default protocol in use by
your computer.

■

Release and renew the computer’s IP address.

To release and renew the IP address for the
Windows 95/98 operating system:

a Click Windows Start and click Run.

33

b Typ e

winipcfg

in the Open field and click OK. The IP

Configuration screen appears.

c In the Ethernet Adapter Information group area, click

the drop down arrow and select the Ethernet adapter.

d Click Release. The IP address changes to 0.0.0.0.

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THERNET INSTALLATION

e Click Renew to refresh the IP address. The refreshed

address may or may not be the same as the original IP
address.

To release and renew the IP address for the
Windows 2000 operating system:

a Click Windows Start and select Programs, then

Accessories.

b Click Command Prompt.

c At the command prompt (C:\),

type

ipconfig /release

and press the Enter key
(notice that there is a space between ipconfig and
/release).

d After the system releases the IP address, at the

command prompt type

ipconfig /renew

and press the
Enter key (notice that there is a space between ipconfig
and /renew).

Troubleshooting the Ethernet Installation

35

e Exit the Command Prompt screen to return to the

Windows desktop.

The Cable Status LED never stops blinking.

The signal from your cable service provider’s equipment
may be too weak or the cable line may not be properly
attached to the modem. If the cable line is properly
connected to the modem, call your cable service provider
to verify whether or not a weak signal is the problem.

All four of the LEDs on the front of my cable modem
are lighted and blinking.

Call your cable service provider or 3Com’s technical support
for assistance.

All of the LEDs on the front of my modem look right,
but I still cannot access the Internet.

■

If the Power, Link Status LEDs, and Data Rate LEDs are
lighted, the cable modem is operating properly. Try
shutting down the computer and then turning it back
on. This causes the computer to re-establish
communications with your cable service provider’s
computer.

■

Power cycle the cable modem by removing the power
adapter from its outlet and then plugging it back into
the outlet. Then try reconnecting to your cable service
provider.

■

You may not have installed TCP/IP properly, or the
TCP/IP parameters provided by your cable service
provider may not be correct for your computer.

■

If you are using a cable line splitter so that you can
connect the cable modem and a television at the same
time, try removing the splitter and reconnecting the
cables so that the cable modem is connected directly to
the cable wall jack. Then try reconnecting to your cable
service provider.

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THERNET INSTALLATION

The power on my modem goes on and off
sporadically. The Link Status light never stops
blinking.

You may be using the wrong power adapter. Check that
the power adapter you are using is the one that came with
the cable modem.

Troubleshooting the Ethernet Installation

37

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C

ABLE

M

ODEM

4

When the cable modem is properly installed and the power
adapter is connected to AC power, the modem
automatically scans for the active cable modem channel
from your cable service provider’s server. When the front
panel LEDs indicate the modem is connected to the server,
all you have to do is launch your Internet browser or e-mail
software, and you are ready to work online.

Interpreting The Cable Modem’s LEDs

Here is a quick overview of the LEDs on the front of the
modem and what they can tell you about the performance
of the modem and the condition of the connection.

LEDs on the Front of the Modem

Power - Indicates power is applied to the cable

■

modem. This light is solid green when the modem is on.
You will also hear an audio notification once power is
applied.

O

PERATION

Link Status - This LED indicates the modem's

■

connection status. It blinks steadily until the modem has
established a connection. Once a connection is
established, the LED is lighted solid green. You will also
hear an audio notification once a connection is
established.

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■

ABLE MODEM OPERATION

Data Rate - Indicates data is being transmitted over the
cable network. This LED should blink when data is being
transmitted over the RF interface and at a rate
dependent on data throughput.

Multifunction - Your cable service provider determines

■

the function of this LED. Depending on how your cable
service provider uses this LED, there may or may not be
an audio notification associated with this LED.

The LED on the back of the cable modem (located near the
power jack) is a status LED. The following chart explains
how to interpret its activity:

LED on the Back of the Modem

LED STATE REPEATING DESCRIPTION

SHORT OFF, LONG
ORANGE

ORANGE NO Failed power on self test

SHORT OFF, SHORT
ORANGE

LONG ORANGE, SHORT
GREEN

SHORT OFF, SHORT
GREEN

GREEN NO Fully operational state

YES Startup, power on self test

YES Downstream hunt

YES Acquisition in process

YES Offline/not authorized for

service

Connectors and Switches on the Back of the Cable Modem

Connectors and Switches on the Back of the Cable
Modem

1Power Jack: This is where you plug in the power adapter

that came with the cable modem. Remember to use only
the power adapter that came with the cable modem. Other
power adapters might have voltages that are not correct
for your particular cable modem. Using a power adapter
with the wrong voltage can damage the cable modem.

2 Ethernet Port: This is where you plug the included RJ-45

Ethernet cable. The other end connects to the RJ-45 jack
on the NIC.

3USB Port: This is where you plug the included USB cable.

The other end connects to the USB port on the computer.

4 Cable RF Connector: This is where you connect the

coaxial cable that leads to the splitter or the cable wall jack.

41

1

2

3

4

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ABLE MODEM OPERATION

V

IEWING THE CABLE

5

M

ODEM’S CONFIGURATION

You can use the 3Com Web-based configuration software
to configure the cable modem.

NOTE: If you do not currently have a Web browser installed
on the computer, you can find the two most popular
browsers, Netscape Navigator and Microsoft’s Internet
Explorer, on the Cable Connections CD included with the
modem.

Open your Web browser and point it to the following URL:

http://149.112.50.65

The Configuration Screens menu appears.

Here is an overview of the options on the Configuration
Screens menu:

Cable Modem Configuration: Click this option to

■

launch the Cable Modem Configuration screen, which
displays the cable modem’s MAC address, serial
number, software version, hardware version, and type
of cable modem.

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■

IEWING THE CABLE MODEM’S CONFIGURATION

Session Status: Click this option to launch the Cable
Modem Status screen. This screen displays both the
cable modem status and operational parameters. The
status describes the downstream and upstream
characteristics. The valid range of the Transmit Power
Level is 8 dbmV to 58 dbmV. The value range of the
Upstream Channel ID is from 1 to 255.

Operation Configuration: Click this option to launch

■

the Cable Modem Operation Configuration screen. The
operational parameters displayed on this screen
describe important aspects of the cable modem’s
configuration file.

URL Change: Click this option to launch the Change

■

Cable Modem URL screen. On this screen, you can
change the URL that you use to access all of these
configuration screens. After you change the URL
setting, type it into your browser’s URL window to
access these configuration screens.

45

Volume Control: Click this option to launch the Cable

■

Modem Sound Control screen. This screen allows you to
adjust the volume of the sounds emitted by the cable
modem.

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IEWING THE CABLE MODEM’S CONFIGURATION

S

UPPORT RESOURCES

6

Support Resources

If you need help operating the cable modem, see
“Troubleshooting the USB Installation” and
“Troubleshooting the Ethernet Installation.” If you need
further help, refer to the following resources.

World Wide Web

Visit our online support home page:

http://consumer.3com.com/cable/

You can send a message to technical support by clicking
Contact Us in the “Site Tools” section of this Web site.

90-Day Free Installation Support

3Com offers free installation support for this product for
90 days after purchase. Please call the following toll-free
number:

After the 90-day limit, refer to our regular technical
support hotline.

Technical Support Hotline

Technical questions about 3Com cable modems can also be
answered by technical support representatives. Regular
telephone charges apply. Service is available 7:00 a.m. ­11:00 p.m. CST Monday through Sunday.

If You Are Still Having Problems

■

Review this manual.

■

Call or visit your modem dealer. They may be able to
assist you.

888 877 5040

847 262 2550

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UPPORT RESOURCES

■

If your dealer cannot help you, contact 3Com Technical
Support. When you call, specify the modem's serial
number (found on the modem and on the outside of
the box) and the software being used.

If You Need to Return the Modem to Us

Contact 3Com Customer Support. If the support
representative determines that you need to return the
modem, you will receive a USO (User Service Order)
number. You must have a USO number before returning
the modem to us. Ship the unit, postage paid, in a strong
box made of corrugated cardboard with plenty of packing
material. DO NOT send the modem back in the original
box. Send ONLY the modem (NOT manuals, diskettes, etc.).
Include your USO number, name, and address on the
shipping label as well as inside the package. If possible,
send the package via a courier capable of tracking the
progress of the shipment. Ship to the following address:

3Com

USO #________

Dock 15

1800 W. Central Ave.

Mount Prospect, IL 60056

R

EGULATORY INFORMATION

7

Manufacturers Declaration of Conformity

FCC Declaration of Conformity

AND LIMITED

We declare under our sole responsibility that the

Description: 3Com HomeConnect Cable Modem
External with USB

To which this declaration relates, is in conformity with the
following standards or other normative documents:

■

ANSI C63.4-1992 Methods of Measurement

■

Federal Communications Commission 47 CFR Part 15,
subpart B

15.107 (e) Class B Conducted Limits

15.109 (g) Class B Radiated Emissions Limits

3Com Corporation
3800 Golf Road
Rolling Meadows, IL 60008
U.S.A.

W

ARRANTY

Telephone: [phone]

FCC Class B Statement

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

(1) this device may not cause harmful electromagnetic
interference, and

(2) this device must accept any interference received
including interference that may cause undesired
operations.

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EGULATORY INFORMATION AND LIMITED WARRANTY

FCC Notice: Radio and Television Interference

Note: 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
reasonable 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 accordance 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 reception, which can be
determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or
more of the following measures:

■

Reorient or relocate the receiving antenna.

■

Increase the separation between the equipment and
receiver.

■

Connect the equipment into 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.

The user may find the following information prepared by
the Federal Communications Commission helpful: The CIB
Interference Handbook and The CIB Telephone Interference
Bulletin.

These documents are available on the Internet through the
FCC Compliance and Interference Bureau Home Page at
http://www.fcc.gov/cib listed under documents. Select CIB
Interference Handbook or CIB Telephone Interference
Bulletin.

CAUTION: CHANGES OR MODIFICATIONS NOT EXPRESSLY
APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE
COULD VOID THE USER’S AUTHORITY TO OPERATE THIS
EQUIPMENT

UL/c UL Listing:

This Information Technology Equipment is UL and C-UL
listed for both the US and Canadian markets respectively.

Canadian Notice:

This digital apparatus does not exceed the Class B limits for
radio noise emissions from digital apparatus set out in the
interference-causing equipment standard entitled Digital
Apparatus, ICES-003 of Industry Canada.

Cet appareil numérique respecte les limites de bruits
radio-électriques applicables aux appareils numériques de
la Classe B préscrites dans la norme sur le matériel
brouilleur: Appareils Numériques, NMB-003 édictée par
l’Industrie Canada.

Centre de guarantie et de service aprés vente:

UL/c UL Listing:

Keating Technologies

Royal Crest Court, Suite 120

Markham, ONT L3R 9X4

51

Users should ensure for their own protection that the
electrical ground connections of the power utility,
telephone lines, and internal metallic water pipe system, if
present, are connected together. This precaution may be
particularly important in rural areas.

CAUTION: Users should not attempt to make electrical
ground connections by themselves, but should contact the
appropriate inspection authority or an electrician, as
appropriate.

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EGULATORY INFORMATION AND LIMITED WARRANTY

INTERNATIONAL DECLARATION OF CONFORMITY

Electromagnetic Compatibility

This equipment was tested and found to conform to the
Council Directive 89/336/EEC for electromagnetic
compatibility. Conformity with this Directive is based upon
compliance with the following harmonized standards:

CISPR 22:1997 Limits and Methods of Measurements of
Radio Interference. This equipment conforms to the Class B
limits.

AS/NZS3548 Australian/New Zealand Limits and Methods
of Measurement of Information Technology equipment.
This equipment conforms to the Class B limits.

EN 50082-1: 1995 Electromagnetic Compatibility Generic
Immunity Standard.

VCCI, Class 2

CNS 13438: 1997, Class B

Safety (Low Voltage Directive)

This equipment was tested and found to conform to the
Council Directive 72/23/EEC for safety of electrical
equipment. Conformity with this Directive is based upon
compliance with the following harmonized standard:

IEC 60950 (1991) Second Edition with Amdts. No. 1(1992),
2(1993), 3(1995) and 4(1996) Safety of Information
Technology Equipment Including Electrical Business
Equipment; EN60950 (1992) with Amdts. 1,2,3,4 and 11,
and with National Differences as specified in the Test
Report.

TS001 and AS/NZS3260 Australian/ New Zealand standard
for Safety of Information technology equipment Including
Electrical Business Equipment.

Special Notes:

Japan

Performance Specifications

This equipment has a bit-error rate (BER) less than 10-8
when the signal-to-noise ratio (SNR) is 23.5 dB or greater
when operating in 64 QAM mode, and when the SNR is

30.0 dB or greater when operating in 256 QAM mode.

Special Notes:

53

Export Notices

■

Unlawful to export from the US or Canada without an
approved US Department of Commerce export license.

■

The hardware contained in this product contains
encryption software which may not be exported or
transferred from the US or Canada without an
approved US Department of Commerce export license.

License Agreement

You agree that you will not export or re-export the
Software or accompanying documentation (or any copies
thereof) or any products utilizing the Software or such
documentation in violation of any applicable laws or
regulations of the United States or the country in which
you obtained them.

The software covered by this agreement may contain
strong data encryption code that cannot be exported

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EGULATORY INFORMATION AND LIMITED WARRANTY

outside of the U.S. or Canada. You agree that you will not
export/re-export, either physically or electronically, the
encryption software or accompanying documentation (or
copies thereof) or any products utilizing the encryption
software or such documentation without obtaining written
authorization from the U.S. Department of Commerce.

3Com Corporation Limited Warranty

Hardware

3Com warrants to the end user (“Customer”) that this
hardware product will be free from 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: five (5) years.

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, 3Com may,
in its sole discretion, refund to Customer the purchase price
paid for the defective product. All products that are
replaced will become the property of 3Com. Replacement
products 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 will perform in substantial conformance to
its program specifications, for a period of ninety (90) days
from the date of purchase from 3Com or its authorized
reseller. 3Com warrants the media containing software
against failure during the warranty period. No updates are
provided. 3Com's sole obligation under this express
warranty shall be, at 3Com's option and expense, to refund
the purchase price paid by Customer for any defective
software product, or to replace any defective media with
software which substantially conforms to applicable 3Com

3Com Corporation Limited Warranty

55

published specifications. Customer assumes responsibility
for the selection of the appropriate applications program
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 applications 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 USE OF WHICH IS
GOVERNED BY A SEPARATE END USER LICENSE
AGREEMENT. THIS 3COM WARRANTY DOES NOT APPLY
TO SUCH THIRD PARTY SOFTWARE. FOR THE APPLICABLE
WARRANTY, PLEASE REFER TO THE END USER LICENSE
AGREEMENT GOVERNING THE USE OF SUCH SOFTWARE.

Year 2000 Warranty

In addition to the Hardware Warranty and Software
Warranty stated above, 3Com warrants that each product
sold or licensed to Customer on and after January 1, 1998
that is date sensitive will continue performing properly with
regard to such date data on and after January 1, 2000,
provided that all other products used by Customer in
connection or combination with the 3Com product,
including hardware, software, and firmware, accurately
exchange date data with the 3Com product, with the
exception of those products identified at 3Com's Web site,

http://www.3com.com/products/yr2000.html

as not meeting this standard. If it appears that any product
that is stated to meet this standard does not perform
properly with regard to such date data on and after January
1, 2000, and Customer notifies 3Com before the later of

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EGULATORY INFORMATION AND LIMITED WARRANTY

April 1, 2000, or ninety (90) days after purchase of the
product from 3Com or its authorized reseller, 3Com shall,
at its option and expense, provide a software update which
would effect the proper performance of such product,
repair such product, deliver to Customer an equivalent
product to replace such product, or if none of the
foregoing is feasible, refund to Customer the purchase
price paid for such product.

Any software update or replaced or repaired product will
carry a Year 2000 Warranty for ninety (90) days after
purchase or until April 1, 2000, whichever is later.

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. Products returned to
3Com's Corporate Service Center must be pre-authorized
by 3Com with a User Service Order (USO) number marked
on the outside of the package, and sent prepaid and
packaged appropriately for safe shipment, and it is
recommended that they be insured or sent by a method
that provides for tracking of the package. The repaired or
replaced item will be shipped to Customer, at 3Com's
expense, not later than thirty (30) days after 3Com receives
the defective product.

In the United States:

1800 W. Central Ave.

Mount Prospect, IL 60056

In Canada:

Keating Technologies

25 Royal Crest Court, Suite 120

Markham, Ontario L3R 9X4

3Com

USO #________

Dock 15

USO #________

WARRANTIES EXCLUSIVE

IF A 3COM PRODUCT DOES NOT OPERATE AS
WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR
BREACH OF THAT WARRANTY SHALL BE REPAIR,
REPLACEMENT, OR REFUND OF THE PURCHASE PRICE
PAID, AT 3COM'S OPTION. 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 WARRANTIES,
TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY,
CORRESPONDENCE WITH DESCRIPTION, AND
NON-INFRINGEMENT, 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 ITS PRODUCTS.

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, OTHER
HAZARDS, OR ACTS OF GOD.

3Com Corporation Limited Warranty

57

LIMITATION OF LIABILITY

TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO
EXCLUDES FOR ITSELF AND ITS 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

58

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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.

Disclaimer

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 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.

Governing Law

This Limited Warranty shall be governed by the laws of the
State of California, U.S.A. excluding its conflicts of laws
principles and excluding the United Nations Convention on
Contracts for the International Sale of Goods.

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