3Com HomeConnect 3CR29220 Bedienungsanleitung

http://www.3com.com/

HomeConnectTM Cable

Modem External

Getting Started Guide

Part No. 1.024.2369-00

Published January 2000

3Com Corporation

3800 Golf Rd.

Rolling Meadows, IL

60008

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3Com Corporation.

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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.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or

may not be registered in other countries.

3Com, the 3Com logo, and HomeConnect are trademarks and EtherLink and Connections registered

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 the respective companies with which they

are associated.

CONTENTS

1BEFORE YOU BEGIN

Introduction 3

Cable Modem Features 3

Contacting Your Local Cable Provider 4

Preparing Your Workspace 5

You Will Need These Items 6

Supplied 6

You will also need the following 6

Configuring the TCP/IP Protocol 6

Configuring the TCP/IP Protocol on a Windows PC 6

Configuring the TCP/IP Protocol on a Macintosh PC 9

2HARDWARE AND SOFTWARE INSTALLATION

Connecting the Cable Modem to Your Computer 13

Installing the Cable ConnectionsTM CD-ROM 14

3CABLE MODEM OPERATION

Interpreting Your Cable Modem’s LEDs 17

LEDs on the Front of the Modem 17

LED on the Back of the Modem 18

Connectors and Switches on the Back of Your Cable

Modem 19

4CONFIGURING YOUR CABLE MODEM

5TROUBLESHOOTING AND SUPPORT RESOURCES

Troubleshooting 25

I cannot access my e-mail or Internet service. 25

The Cable Status LED never stops blinking. 26

All four of the LEDs on the front of my cable modem are

lighted and blinking. 26

All of the LEDs on the front of my modem look right, but I still

can't access the Internet. 26

The power on my modem goes on and off sporadically. The

Link Status light never stops blinking. 27

Support Resources 27

Internet FTP 27

World Wide Web 27

90-Day Free Installation Support 27

Technical Support Hotline 27

If You Are Still Having Problems 28

If You Need to Return the Modem to Us 28

6REGULATORY INFORMATION AND LIMITED WARRANTY

Manufacturer's Declaration of Conformity 29

Part 15 29

Caution to the User 29

Performance Specifications 29

Export Notices 29

License Agreement 30

Industry Canada (IC) 30

UL Listing/CUL Listing 30

Radio and Television Interference 31

3Com Corporation Limited Warranty 32

Hardware 32

Software 32

Year 2000 Warranty 33

Obtaining Warranty Service 34

WARRANTIES EXCLUSIVE 34

LIMITATION OF LIABILITY 35

Disclaimer 35

Governing Law 36

1BEFORE YOU BEGIN

Introduction

Congratulations! 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 Broadband

Service Provider, and network traffic.

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 sends

and receives data over the cable line

■Plug and play 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

8CHAPTER 1: BEFORE YOU BEGIN

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) changing network

traffic levels depending when and where you go online.

Contacting Your Local Cable Provider

In order to use your cable modem, you need to set up an

Internet access account with your local cable provider.

Before contacting your cable provider to setup an account,

have the following information handy:

■The modem’s serial number, model number, and Media

Access Control (MAC) address. 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. Your cable modem’s

model number is 3CR29220. In the following example

label image, the model number is 20-0591-000. 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

all three of these numbers in the following blanks for

future reference.

Serial number: SN= __________________

Model number: 3CR29220

MAC address: EA = __________________

You should now contact your local cable provider and verify

the following:

■The cable service to your home supports two-way cable

modem access. If your cable company does not provide

Preparing Your Workspace 9

two-way service, this modem will not be able to

communicate with your cable company’s Internet access

service. You should immediately consult your cable

company and place of purchase to determine the

proper 3Com cable 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 provider can install one. If you use your current

cable line for cable television access, your cable

company can also install an additional line for use with

your cable modem.

■Your cable provider has set up your cable Internet

access account. Your cable 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.

Preparing Your Workspace

■Position your computer so that it is located near your

cable outlet.

■The cable modem should be located near your

computer and the cable outlet. There should be plenty

of room to guide the cables away from the modem

without crimping them.

■Airflow around the modem should not be restricted.

■The temperature in the room where the cable modem

will be operating should be between 0 and 40°C (32

and 104°F). Relative humidity should be between 5%

and 95%, non-condensing.

■Familiarize yourself with all of the materials supplied

with the modem. Please read these installation

instructions thoroughly before installing the modem.

10 CHAPTER 1: BEFORE YOU BEGIN

CAUTION: Your cable provider will provide a cable

connection. Do not attempt any rewiring without first

contacting your cable provider.

You Will Need These Items

Supplied

■Cable modem

■Cable modem power supply

■RJ-45 network cable

■This Getting Started Guide

You will also need the following

■A PC running Windows®95 operating system (or

later) or a Macintosh®computer running System 7.5

(or later) with TCP/IP protocol installed (see the

following two sections for more information on

installing TCP/IP)

■An active two-way cable line

■An active Ethernet port, network interface card (NIC)

installed in your computer, or USB network interface

(Windows 98 or later only)

■An adjustable wrench for securing the cable line to

the modem

Configuring the TCP/IP Protocol

NOTE: If you are using a Macintosh computer, turn to the

instructions on page 9.

Configuring the TCP/IP Protocol on a Windows PC

You need to have an Ethernet Network Interface Card (NIC)

or USB network interface and the TCP/IP communications

protocol installed on your system before you install your

Configuring the TCP/IP Protocol 11

cable modem. Follow these instructions to verify that

TCP/IP is installed and configured correctly.

1Right-click the Network Neighborhood icon on your

desktop and then click Properties.

2A 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 or USB

network interface installed in your computer. If an entry

similar to this is present, go to step 9.

3If a similar entry is NOT present, click Add...

4Click Protocol, and then click Add...

5Click Microsoft in the "Manufacturers:" list and then click

TCP/IP in the "Network Protocols:" list. Click OK.

6"TCP/IP" will appear in the list of installed network

components. Click OK.

12 CHAPTER 1: BEFORE YOU BEGIN

7Windows will now ask you if you would like to restart your

computer. It is very important that you click No.

8Right-click on the Network Neighborhood icon on your

desktop then click Properties in the drop-down menu that

appears.

9Double-click the entry in the "Configuration" menu named

"TCP/IP". This entry may be followed by an arrow and a

description of your NIC or dialup adapter.

10 Click the “Advanced” tab and then make sure the box next

to "Set this protocol to be the default protocol." is

checked. If it is not, click the box to put a check in it. (If this

option is grayed out, then TCP/IP is already the default

protocol.)

11 Click OK and then click OK again.

12 Reboot your PC by clicking Windows Start, clicking Shut

Down, clicking “Restart the computer?” and then clicking

Yes.

13 When your desktop reappears, click the Windows Start

button and then click Run.

14 When the “Run” screen appears, type winipcfg in the text

field and click the OK button.

15 The "IP Configuration" window will appear. Click the

Release button. A line of zeros will appear in the "IP

Address" and "Subnet Mask" fields.

16 Click the Renew button. Numbers will replace the zeros.

Click OK and turn to the next chapter, “Hardware and

Software Installation”.

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