3Com 980/000048/001 manual Index Limited Warranty FCC Class a Verification Statement

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BTECHNICAL SUPPORT

On-line Technical Services	D-1
3Com Bulletin Board Service D-1
Access by Modem	D-1
Access by ISDN D-2
World Wide Web Site	D-2

Support from Your Network Supplier D-3

Support from 3Com D-4

Returning Products for Repair D-5

INDEX

LIMITED WARRANTY

FCC CLASS A VERIFICATION STATEMENT

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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 This table shows where to find specific information How to Use This GuideAbout this Guide IntroductionConventions Icon conventions that are used throughout this guide areText conventions used in this guide are Keep the unit away from radiators and heat sources Additional Safety InformationAbout this Guide Triple Modem Module Support for dial-up transmission protocols Principal FeaturesImplementation of V.32terbo Triple Modem Module Modem Connections To The Central Site Typical ApplicationsRegistering Ownership of your Triple Modem Module Pack Contents ChecklistPre-installation Requirements Triple Modem Module Overview Installation and OperationInstalling The Module Installing The Rear Card Installing the Rear CardExample of Installing a Front Card Installing the Front CardConnecting the Cables Front Panel LEDs Front Panel LEDs Installation and Operation Troubleshooting Troubleshooting GuideModem Health Modem DTE Connection Modem does not accept or echo back AT commandsModem 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 Protocols Physical DescriptionGeneral Approvals Requirements Approvals InformationAll the other apparatus shall comprise only Appendix a Modem Specification and Interface PIN Assignments Ringer Equivalence 21/V.11 DTE Port Pin Assignments24/V.28 35/V.36 Pstn Port Cable Pin Assignments Private Line Port Cable Pin Assignments 3Com Bulletin Board Service On-line Technical ServicesCall the telephone number nearest you World Wide Web SiteSupport from Your Network Supplier Support from 3Com Returning Products for Repair Appendix B Technical Support Numerics IndexSend LED Limited Warranty 408 764-5000 3/18/96 How to Identify and Resolve Radio-TV Interference Problems