3Com TMX 10031161 User Manual

U.S. Robotics® Cable Modem TMX Getting Started Guide

http://www.3com.com/

Part No. 10031161 Published February 2000

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

Copyright © 2000 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without 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, the implied warranties of merchantability and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

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 FA R2.101(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.

3Com, the 3Com logo, and U.S. Roboticsare registered trademarks and Connections is a trademark of 3Com Corporation.

Microsoft, Windows, and Windows NT are registered trademarks of Microsof tCorporation.

All other company and product names may be trademarks of the respective companies with which they are associated.

ONTENTS

EFORE YOU BEGIN

Introduction 1 Cable Modem TMX Features 1 Contacting Your Broadband Service Provider (BSP) 2 Preparing Your Workspace 3 You Will Need These Items 4 Configuring the TCP/IP Protoco l5

Configuring the TCP/IP Protocol on a Windows P C5 Configuring the TCP/IP Protocol on a Macintosh P C7

ARDWARE INSTALLATION

Wall-Mount Installation 11 Desktop Installation 13 Stacking Installation with OfficeConnect Products 14 Connecting the Cable Modem to Your Computer 15

ABLE MODEM CONFIGURATION

Configuring Non-3Com U.S. Robotics Modems for Use with the TMX 22

Using the Cable Modem TMX 24 Summary of Configuration Software Screens24

Dial/HangUp 25 Rescan Channels 25 Tune Frequency 26 DHCP Configuration 26 Enroll 27 Dial-Up Parameters 28

Dialing Parameters 29 Access Parameters30

DHCP/PPP Parameters 31 Cable Modem Configuration 32 Session Status 33

Message Log 33 Interpreting Your Cable Modem's LED Lights 34 Upgrading to CMX Functionality 35

ROUBLESHOOTING AND SUPPORT RESOURCES

Troubleshooting 37

The analog modem does not dial my cable company’s server

properly. 37

My computer went into “power save” mode. When it came

out of power save mode, my screen was frozen. 37

I see a delay when loading Web pages or downloading files

(Mac users only). 38

I cannot access the 149.112.50.65 URL after disconnecting

from my BSP .38

The Cable Status LED never stops blinking. 38 Support Resources 38

If You Are Still Having Problems 38

If You Need to Return the Modem to Us 39

World Wide Web 39

90-Day Free Installation Support 39

Technical Support Hotline 39

EGULATORY INFORMATION AND LIMITED WARRANTY

Manufacturer’s Declaration of Conformity 41

Caution to the User 41

Performance Specifications 41

Export Notices 41

License Agreement 42

Industry Canada (IC) 42

UL Listing/CUL Listing42

Radio and Television Interference 42 3Com Corporation Limited Warranty 43

Hardware 43

Software 44

Year 2000 Warranty 45

Obtaining Warranty Service 45

WARRANTIES EXCLUSIVE 46

LIMITATION OF LIABILITY 47

Disclaimer 47

Governing Law 47

ALL-MOUNTING TEMPLATE

Introduction

This guide provides all the information you need to use your Cable Modem TMX and an analog modem to dial into one-way Broadband Service Providers (BSPs).

Not all cable companies and BSPs provide two-way service. In the event that you have a one-way cable provider or BSP, you need to use an analog modem to send data to the provider, and then receive data from the provider over the cable line using a cable modem like the TMX.

BSPs who currently offer one-way service may choose to upgrade to two-way service at some point in the future. Your new Cable Modem TMX is software upgradable to the full operation of the 3Com Modem CMX. See the chapter in this guide about two-way access for more information.

If you purchased the TMX Dialup Kit, the external analog modem required for dialing into your provider is included. If you purchased the TMX modem alone, you will need a compatible external serial analog modem. (This product will not work with an internal or USB-only analog modem.) The diagrams and instructions in this guide assume you have purchased the Dialup Kit.

EFORE YOU BEGIN

U.S. Robotics® Cable

Installation using a modem other than the one included in the Dialup Kit should be very similar to the procedures described in this guide. Consult your analog modem's documentation for more details concerning its operation and setup.

Cable Modem TMX Features

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Downstream user data rates of up to 38 Mbps (megabits per second), faster than 56K analog modems, ISDN, or ADSL

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EFORE YOU BEGIN

Plug and play operation ensures easy setup and

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installation

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3Com’s extensive user support organizations and our

5-year limited warranty

* Please note that the following factors affect the

speeds you may experience:

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Your computer equipment and configuration, including the speed of your processor, the amount of RAM on your system, and your available hard disk space.

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The Internet browsing, e-mail, or other programs you run at the same time, which use your computer’s resources.

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The capacity of the Internet service you order from your provider.

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Changing network traffic levels depending on when you go online.

Contacting Your Broadband Service Provider (BSP)

In order to use your cable modem, you need to establish an Internet access account with your local BSP. Before contacting your BSP to establish an account, have the following information handy:

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The modem’s Media Access Control (MAC) address

(located on a bar code sticker on the back of the

modem). The MAC address consists of 12 characters

preceded by the text EA =. In the following example

label image, the

MAC address is 00104B377410. Write the MAC

address in the blank provided below.

Preparing Your Workspace

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The modem’s model number (located on a sticker on

the bottom of the modem).

MAC address: EA = __________________ Model number: 3CR292B-TR56

You should now contact your BSP and verify the following:

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You have cable service to your home that supports cable modem access. If your BSP does not provide

cable modem access, the 3Com U.S. Robotics Cable Modem TMX will not be able to communicate with your BSP’s Internet access service. Visit the following URL for additional information:

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

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Your BSP has set up your cable Internet access account. Your BSP will establish 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 established before you can use your cable modem.

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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 cable modem access or if your current cable connection is not conveniently located near your computer, your cable company can install one. If you use your cable line for cable television access, your cable company can also install an additional line for use with your cable modem.

Preparing Your Workspace

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

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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 the cables.

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The modem should be located where it has ample space to allow constant airflow around the unit.

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EFORE YOU BEGIN

Do not stack anything on top of the cable modem. (See

1: B

the instructions on page 14 concerning stacking this

modem with 3Com OfficeConnect products.)

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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.

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Familiarize yourself with all of the materials in this box.

Please read these installation instructions thoroughly

before installing your cable modem.

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

You Will Need These Items

Included:

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Cable modem

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Cable modem power supply

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Analog modem, power supply, and DB-25 to DB-9 cable

(TMX Dialup Kit only)

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RJ-45 network cable

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Rubber feet and stacking clips kit

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This Getting Started Guide

Not Included:

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A PC running Windows 95 operating system (or later)

or a Macintosh



computer running the System 7.5 operating system (or later) with TCP/IP protocol installed (see the following two sections for more information on installing TCP/IP)

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An active cable line

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An active Ethernet port or network interface card (NIC) installed in your computer

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A 7/16 inch (or adjustable) wrench for securing the cable line to the modem

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A screwdriver, pushpins, and screws (for optional wall-mounting) The screw heads should be at least 0.2” (5mm) in diameter for them to be properly captured in

Configuring the TCP/IP Protocol

the slot. If you are using wood screws, use #6 pan heads or equivalent.

Configuring the TCP/IP Protocol

NOTE: If you are using a Macintosh computer, turn to the instructions on page 7.

Configuring the TCP/IP Protocol on a Windows PC

You need to make sure that either an active Ethernet port, Ethernet Network Interface Card (NIC), or an active USB port and the TCP/IP communications protocol are installed on your system before you install your cable modem. Configure TCP/IP as described in the following set of instructions.

1 Right-click the Network Neighborhood icon on your

desktop and then 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 or USB network interface installed in your computer. If an entry similar to this is present, go to step 9.

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

4 Click Protocol, and then click Add...

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

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

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EFORE YOU BEGIN

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

components. Click OK.

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

computer. Click No.

8 Right-click on the Network Neighborhood icon on your

desktop then click Properties in the drop-down menu that appears.

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

reads "TCP/IP -->" followed by 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 you do not have TCP/IP installed properly.)

11 Click OK and then click OK again.

12 Click the Windows Start button and then click Run.

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

field and click the OK button.

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

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

Address" and "Subnet Mask" fields.

Configuring the TCP/IP Protocol

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

Click OK and turn to "Hardware and Software Installation" (page 11).

NOTE: The numbers on your screen SHOULD be different than those shown in the following example.

Configuring the TCP/IP Protocol on a Macintosh PC

You need to make sure that the TCP/IP communications protocol is installed on your system before you install your cable modem.

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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EFORE YOU BEGIN

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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 the Advanced button then click OK.

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

“Connect Via”) and click "Using DHCP Server".

5 Click the Options button. Then click the Active button.

NOTE: In some cases, the Load only when needed button will not appear. If it is visible, click the box. A check mark should appear in the box.

Configuring the TCP/IP Protocol

6 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 the Info button in the lower left corner.

7 Ensure there is a Hardware Address listed in this window. If

there is, click the OK button and close the “TCP/IP Control Panel” (click File and scroll down to click Close). If there is no Hardware Address, you must shut down and power off your computer. With the power off, simultaneously depress and hold down the Command (Apple), Option, P, and R keys on your keyboard. Keeping those keys depressed, power on the Macintosh computer. The machine will start and you will hear the Apple chime. Keep these keys depressed for up to 3 chimes, then release the keys and allow the computer to start-up. When fully rebooted, ensure that all TCP/IP settings match those in the preceding instructions. If your computer still does not have a

1: B

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EFORE YOU BEGIN

Hardware Address, please contact your local Apple authorized dealer or Apple support.

ARDWARE INSTALLATION

NOTE: Before installing your modem, write its serial number in the space provided on the first page of this manual. (You’ll find the serial number above the bar code on the white sticker on the back of the modem and on the outside of the modem’s box.) If you ever call our customer support department, a representative will ask you for the serial number. This will help to identify your modem.

Before you begin installing the cable modem hardware, you need to determine how you want to incorporate the modem into your work environment. There are three installation options:

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Wall-mount installation (this page)

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Desktop installation (page 13)

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Stacking installation with OfficeConnect products (page

14)

Wall-Mount Installation

Your cable modem is capable of being wall-mounted, if you choose to do so. The bottom panel of the cable modem has two raised brackets with slots as shown in the following illustration.

NOTE: Before wall-mounting the cable modem, follow the instructions in the section “Connecting the Cable Modem to Your Computer” (pages 15-19). Then return to this point to continue the process.

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