欢迎来到天天文库
浏览记录
ID:48059977
大小:105.63 KB
页数:9页
时间:2019-10-18
《ITU-TG.993.2Amendment1Corrigendum1(072007)(英)Veryhigh…….pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、INTERNATIONALTELECOMMUNICATIONUNIONITU-TG.993.2TELECOMMUNICATIONAmendment1STANDARDIZATIONSECTOROFITUCorrigendum1(07/2007)SERIESG:TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSDigitalsectionsanddigitallinesystem–AccessnetworksVeryhighspeeddigitalsubscriberlinetransceivers2
2、(VDSL2)Amendment1Corrigendum1CAUTION!PREPUBLISHEDRECOMMENDATIONThisprepublicationisanuneditedversionofarecentlyapprovedRecommendation.Itwillbereplacedbythepublishedversionafterediting.Therefore,therewillbedifferencesbetweenthisprepublicationandthepublishedversion.FOREWORDTheInte
3、rnationalTelecommunicationUnion(ITU)istheUnitedNationsspecializedagencyinthefieldoftelecommunications.TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganofITU.ITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithav
4、iewtostandardizingtelecommunicationsonaworldwidebasis.TheWorldTelecommunicationStandardizationAssembly(WTSA),whichmeetseveryfouryears,establishesthetopicsforstudybytheITU-Tstudygroupswhich,inturn,produceRecommendationsonthesetopics.TheapprovalofITU-TRecommendationsiscoveredbythe
5、procedurelaiddowninWTSAResolution1.InsomeareasofinformationtechnologywhichfallwithinITU-T'spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.NOTEInthisRecommendation,theexpression"Administration"isusedforconcisenesstoindicatebothatelecommunicationadminis
6、trationandarecognizedoperatingagency.CompliancewiththisRecommendationisvoluntary.However,theRecommendationmaycontaincertainmandatoryprovisions(toensuree.g.interoperabilityorapplicability)andcompliancewiththeRecommendationisachievedwhenallofthesemandatoryprovisionsaremet.Thewords
7、"shall"orsomeotherobligatorylanguagesuchas"must"andthenegativeequivalentsareusedtoexpressrequirements.TheuseofsuchwordsdoesnotsuggestthatcompliancewiththeRecommendationisrequiredofanyparty.INTELLECTUALPROPERTYRIGHTSITUdrawsattentiontothepossibilitythatthepracticeorimplementation
8、ofthisRecommendationmayinvolvetheuseofaclaimedI
此文档下载收益归作者所有