ITU-T G.108 (09 1999) (英) Application of the E-model A planning guide

ITU-T G.108 (09 1999) (英) Application of the E-model A planning guide

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时间:2019-10-18

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1、INTERNATIONALTELECOMMUNICATIONUNIONG.108TELECOMMUNICATION(09/99)STANDARDIZATIONSECTOROFITUSERIESG:TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSInternationaltelephoneconnectionsandcircuits–GeneraldefinitionsApplicationoftheE-model:AplanningguideITU-TRecommendationG.108(P

2、reviouslyCCITTRecommendation)ITU-TG-SERIESRECOMMENDATIONSTRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSINTERNATIONALTELEPHONECONNECTIONSANDCIRCUITSG.100–G.199GeneraldefinitionsG.100–G.109GeneralRecommendationsonthetransmissionqualityforanentireinternationalG.110–G.119tel

3、ephoneconnectionGeneralcharacteristicsofnationalsystemsformingpartofinternationalconnectionsG.120–G.129Generalcharacteristicsofthe4-wirechainformedbytheinternationalcircuitsandG.130–G.139nationalextensioncircuitsGeneralcharacteristicsofthe4-wirechainofinternationalcircuits;inte

4、rnationaltransitG.140–G.149GeneralcharacteristicsofinternationaltelephonecircuitsandnationalextensionG.150–G.159circuitsApparatusassociatedwithlong-distancetelephonecircuitsG.160–G.169TransmissionplanaspectsofspecialcircuitsandconnectionsusingtheinternationalG.170–G.179telephon

5、econnectionnetworkProtectionandrestorationoftransmissionsystemsG.180–G.189SoftwaretoolsfortransmissionsystemsG.190–G.199INTERNATIONALANALOGUECARRIERSYSTEMGENERALCHARACTERISTICSCOMMONTOALLANALOGUECARRIER-G.200–G.299TRANSMISSIONSYSTEMSINDIVIDUALCHARACTERISTICSOFINTERNATIONALCARRI

6、ERTELEPHONEG.300–G.399SYSTEMSONMETALLICLINESGENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.400–G.449SYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTIONWITHMETALLICLINESCOORDINATIONOFRADIOTELEPHONYANDLINETELEPHONYG.450–G.499TESTINGEQUIPMENTSTRANSMISSIONMEDIACHARACTERI

7、STICSG.600-G.699DIGITALTRANSMISSIONSYSTEMSTERMINALEQUIPMENTSG.700–G.799DIGITALNETWORKSG.800–G.899DIGITALSECTIONSANDDIGITALLINESYSTEMG.900–G.999Forfurtherdetails,pleaserefertoITU-TListofRecommendations.ITU-TRECOMMENDATIONG.108APPLICATIONOFTHEE-MODEL:APLANNINGGUIDESummaryTheinten

8、tofthisRecommendationistodemonstratehowtheE-Model(desc

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