3Com 980/000048/001 manual Approvals Information, General Approvals Requirements

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A-4 APPENDIX A: MODEM SPECIFICATION AND INTERFACE PIN ASSIGNMENTS

Approvals Information

This product complies with the electro-magnetic compatibility (EMC) requirements of EN 55022 Class A and EN 50082 (susceptibility).

The product carries the CE certification mark to indicate conformance with the following EU directives:

■LVD (Low Voltage Directive (Safety) 73/23/EEC.

■EMC (Electro Magnetic Compatibility) Directive 89/336/EEC.

■TTE (Telecommunication Terminal Equipment) Directive 91/263/EEC. This product also meets the safety requirements of EN41003 and EN60950. See also the FCC and CSA statements at the back of this guide.

General Approvals Requirements

This section pertains to the approval of the modems, and to your country’s approvals board requirements and notices for use of these modems. Users of this module should pay particular attention to this information. This unit is approved for connection to the telecommunications systems specified in the instructions for use, subject to the conditions set out in them.

Each modem is suitable for connection to the general switched telephone network (GSTN/PSTN) and extensions on compatible PABXs. It is also suitable for use on point-to-point private circuits, omnibus or multipoint circuits, using two or four wire termination (provided by Approved Telecommunication Operators), or to a relevant branch system.

If any other apparatus, including cable or wiring, is to be connected between the apparatus and the point of connection to a 2-wire or

4-wire speech band circuit, then all that other apparatus shall conform to the following:

■The overall transmission characteristics of all that other apparatus shall be such as to introduce no material effect upon the electrical conditions presented to one another by the apparatus and the digital circuit.

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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 How to Use This Guide This table shows where to find specific informationAbout this Guide IntroductionIcon conventions that are used throughout this guide are ConventionsText conventions used in this guide are Additional Safety Information Keep the unit away from radiators and heat sourcesAbout this Guide Triple Modem Module Principal Features Support for dial-up transmission protocolsImplementation of V.32terbo Triple Modem Module Typical Applications Modem Connections To The Central SitePack Contents Checklist Registering Ownership of your Triple Modem ModulePre-installation Requirements Triple Modem Module Installation and Operation OverviewInstalling The Module Installing the Rear Card Installing The Rear CardInstalling the Front Card Example of Installing a Front CardConnecting the Cables Front Panel LEDs Front Panel LEDs Installation and Operation Troubleshooting Guide TroubleshootingModem Health Modem does not accept or echo back AT commands Modem DTE ConnectionModem Telephone Line Connection Troubleshooting Perform a local analogue loop test On-line Operation Dial Backup OperationPrivate-line Operation Transmitter / Receiver Specifications Modem SpecificationInterface PIN Assignments Autodial Autoanswer Physical Description ProtocolsApprovals Information General Approvals RequirementsAll the other apparatus shall comprise only Appendix a Modem Specification and Interface PIN Assignments Ringer Equivalence DTE Port Pin Assignments 21/V.1124/V.28 35/V.36 Pstn Port Cable Pin Assignments Private Line Port Cable Pin Assignments On-line Technical Services 3Com Bulletin Board ServiceWorld Wide Web Site Call the telephone number nearest youSupport from Your Network Supplier Support from 3Com Returning Products for Repair Appendix B Technical Support Index NumericsSend LED Limited Warranty 408 764-5000 3/18/96 How to Identify and Resolve Radio-TV Interference Problems
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