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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. CONTENTS 1 BEFORE 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 2 HARDWARE INSTALLATION Wall-Mount Installation 11 Desktop Installation 13 Stacking Installation with OfficeConnect Products 14 Connecting the Cable Modem to Your Computer 15 3 CABLE 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 4 TROUBLESHOOTING 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 5 REGULATORY 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 6 WALL-MOUNTING TEMPLATE 1 1 BEFORE YOU BEGIN 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 ...