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3Com 980/000048/001 manual Appendix B Technical Support

Models: 980/000048/001

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Troubleshooting Specification Install Connecting the Cables Warranty Dial Backup Operation How to Safety On-line Technical Services Principal Features

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B-6 APPENDIX B: TECHNICAL SUPPORT

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3Com 980/000048/001 manual Appendix B Technical Support

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Contents

Accessbuilder Triple Modem Module User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Important Safety Information Wichtige Sicherheitshinweise ’INFORMATION DE Sécurité Importante Page Contents Modem Specification and Interface PIN Assignments Index Limited Warranty FCC Class a Verification Statement Page About this Guide How to Use This GuideThis table shows where to find specific information Introduction Conventions Icon conventions that are used throughout this guide areText conventions used in this guide are Additional Safety Information Keep the unit away from radiators and heat sources About this Guide Triple Modem Module Principal Features Support for dial-up transmission protocols Implementation of V.32terbo Triple Modem Module Typical Applications Modem Connections To The Central Site Pack Contents Checklist Registering Ownership of your Triple Modem Module Pre-installation Requirements Triple Modem Module Installation and Operation Overview Installing The Module Installing the Rear Card Installing The Rear Card Installing the Front Card Example of Installing a Front Card Connecting the Cables Front Panel LEDs Front Panel LEDs Installation and Operation Troubleshooting Troubleshooting GuideModem Health Modem does not accept or echo back AT commands Modem DTE Connection Modem Telephone Line Connection Troubleshooting Perform a local analogue loop test Dial Backup Operation On-line OperationPrivate-line Operation Modem Specification Transmitter / Receiver SpecificationsInterface PIN Assignments Autodial Autoanswer Physical Description Protocols Approvals Information General Approvals Requirements All the other apparatus shall comprise only Appendix a Modem Specification and Interface PIN Assignments Ringer Equivalence DTE Port Pin Assignments 21/V.11 24/V.28 35/V.36 Pstn Port Cable Pin Assignments Private Line Port Cable Pin Assignments On-line Technical Services 3Com Bulletin Board Service World Wide Web Site Call the telephone number nearest you Support from Your Network Supplier Support from 3Com Returning Products for Repair Appendix B Technical Support Index Numerics Send LED Limited Warranty 408 764-5000 3/18/96 How to Identify and Resolve Radio-TV Interference Problems

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