tia eia-777-a-draft-sp4078rv(pn4078rv)

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1、PN-4078RV(TobepublishedasTIA/EIA-777A)TelecommunicationsTelephoneTerminalEquipmentCallerIdentityandVisualMessageWaitingIndicatorEquipmentPerformanceRequirementsFormulatedunderthecognizanceofTIASubcommitteeTR-41.3AnalogandDigitalWirelineTerminalsWiththeappro

2、valofTIAEngineeringCommitteeTR-41TelecommunicationEquipmentRequirements[Thispageintentionallyleftblank.]TABLEOFCONTENTS1SCOPE92NORMATIVEREFERENCES93ABBREVIATIONS,ACRONYMS,ANDDEFINITIONS103.1AbbreviationsandAcronyms103.2Definitions104TECHNICALCRITERIAFORCPE1

3、24.1Mandatory,Recommended,andPermissiveCriteria125TYPE1CPEGENERAL125.1Type1CPEFunctionality125.2Type1Protocol125.2.1FSKfollowingPowerRinging125.2.2FSKwithoutPowerRinging135.2.3Time-outandResettingCapabilities135.2.4Type1MessagePreamble145.2.4.1ChannelSeizur

4、eSignal145.2.4.2MarkSignal145.2.4.3Binary&ASCIIencoding145.2.5MessageFormats145.2.5.1MessageTypes155.2.5.2MessageLength155.2.5.3SDMFMessageType155.2.5.3.1SDMFCallingNumberParameter155.2.5.3.2SDMFReasonforAbsenceofCallingNumber175.2.5.4MDMFMessageFormat175.2

5、.5.4.1ParameterTypes175.2.5.4.2ParameterLength185.2.5.4.3ParameterFieldDefinitions185.2.5.4.3.1MDMFDateandTimeParameter185.2.5.4.3.2MDMFCallingNumberParameter195.2.5.4.3.3MDMFDialableDirectoryNumberParameter195.2.5.4.3.4MDMFReasonforAbsenceofDirectoryNumber

6、Parameter205.2.5.4.3.5MDMFCallingNameParameter215.2.5.4.3.6MDMFReasonforAbsenceofNameParameter215.2.5.4.3.7MDMFCallQualifierParameter225.2.5.4.3.8ReasonforRedirectionParameter(Reserved)235.2.5.5VisualMessageWaitingIndicator235.2.5.5.1SDMFVMWIParameter235.2.

7、5.5.2MDMFVMWIParameter235.2.5.6MarkBits245.2.5.7Checksum245.2.5.8Markout245.2.6ExceptionHandling245.2.6.1ChecksumError245.2.6.2NoDataDetected245.2.6.3OutofRangedata2467475.3PhysicalLineInterface255.3.1FSKSignalProperties255.3.1.1Frequency255.3.1.2SignalLeve

8、ls255.3.1.3Type1FSKSignalLevelDetectionThreshold255.3.1.4FSKTwist255.3.1.5BaudRate265.3.2Impairments265.3.2.1SingleToneMetallicNoiseduringFSK265.3.2.2SingleToneMetallicNoisebeforeandafterFSK275.3.2.3Ty