ITU-T G.842 (04 1997) (英) Interworking of SDH network ……

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1、INTERNATIONALTELECOMMUNICATIONUNION)45 4'TELECOMMUNICATION(04/97)STANDARDIZATIONSECTOROFITUSERIESG:TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSDigitaltransmissionsystems–Digitalnetworks–SDHnetworkcharacteristics)NTERWORKINGOF3$(NETWORKPROTECTIONARCHITECTURE

2、SITU-TRecommendationG.842(PreviouslyCCITTRecommendation)ITU-TG-SERIESRECOMMENDATIONS42!.3-)33)/.3934%-3!.$-%$)!$)')4!,3934%-3!.$.%47/2+3INTERNATIONALTELEPHONECONNECTIONSANDCIRCUITSG.100–G.199).4%2.!4)/.!,!.!,/'5%#!22)%23934%-GENERALCHARACTERISTICSCOMMONTOALLANALO

3、GUECARRIER-G.200–G.299TRANSMISSIONSYSTEMSINDIVIDUALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.300–G.399SYSTEMSONMETALLICLINESGENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.400–G.449SYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTIONWITHMETALLICLINESCOORDINAT

4、IONOFRADIOTELEPHONYANDLINETELEPHONYG.450–G.49942!.3-)33)/.-%$)!#(!2!#4%2)34)#3$)')4!,42!.3-)33)/.3934%-3TERMINALEQUIPMENTSG.700–G.799DIGITALNETWORKSG.800–G.899GeneralaspectsG.800–G.809DesignobjectivesfordigitalnetworksG.810–G.819QualityandavailabilitytargetsG.820–G.829N

5、etworkcapabilitiesandfunctionsG.830–G.8393$(NETWORKCHARACTERISTICS''TelecommunicationsmanagementnetworkG.850–G.859DIGITALSECTIONSANDDIGITALLINESYSTEMG.900–G.999GeneralG.900–G.909ParametersforopticalfibrecablesystemsG.910–G.919Digitalsectionsathierarchicalbitratesb

6、asedonabitrateof2048kbit/sG.920–G.929Digitallinetransmissionsystemsoncableatnon-hierarchicalbitratesG.930–G.939DigitallinesystemsprovidedbyFDMtransmissionbearersG.940–G.949DigitallinesystemsG.950–G.959DigitalsectionanddigitaltransmissionsystemsforcustomeraccesstoISDNG.960–G

7、.969OpticalfibresubmarinecablesystemsG.970–G.979OpticallinesystemsforlocalandaccessnetworksG.980–G.999Forfurtherdetails,pleaserefertoITU-TListofRecommendations.ITU-TRECOMMENDATIONG.842INTERWORKINGOFSDHNETWORKPROTECTIONARCHITECTURESSummaryThisRecommendationprovidesspecificat

8、ionsfortheinterworkingofnetworkprotectionarchitectures.Specificallycoveredaresingl