YD/T 1089-2000.Access Network Technical specifications - Management Function of Access Network Elements.1范围YD/T 1089规定了接入网网元管理层的管理功能要求，主要...
YD/T 1088-2000.Numbering plan for IP telephony service.1范围YD/T 1088对于IP电话业务中以下3种情况的编号要求进行了规定:(1) 基于IP网络的用户呼叫PSTN/IS...
YD/T 1086-2000.B - ISDN ATM Adaptation Layer Specification:Type 2 AAL.1范围YD/T 1086规定了AAL2公共部分子层(CPS)、AAL2分段和重装特定业务会聚子层和用于窄带...
YD/T 1087-2000.Technical Specification of ISDN User-network Interface.1范围YD/T 1087规定了当支持IP接入功能后，ISDN用户一网络接口DSS1信令增强的信令要求，...
YD/T 1085-2000.B-ISDN ATM Adaptation Layer AAL Type 2 Signaling Technical Specification(CS-1).1范围YD/T 1085规定了为提供AAL2业务所使用的信令协议(能力集1)。YD/T...
GA 1551.4-2019.Requirements for public security and counter-terrorist of petrochemical industry-Part 4: Engineering and technical service companies.1范围GA 1551.4规定了工程技术...
GA 1551.3-2019.Requirements for public security and counter-terrorist of petrochemical industry-Part 3 :Sales companies of refined oil and natural gas.1范围GA 1551.3规定了成品油...
GY/T 64-2021.Anticorrosive coat ing of steel tower and mast for radio and television.GY/T 64规定了广播电视钢塔桅防腐蚀保护涂装的技术要求、检验要求、试验方...
GA 1551.2-2019.equirements for public security and counter-terrorist of petrochemical industry-Part 2: Oil refining and chemical companies.1范围GA 1551.2规定了炼油与化工企业...
GY/T 65-2021.Technical requirements of manufacturing steel tower and mast for radio and television.GY/T 65规定了广播电视钢塔桅制造过程中的技术要求、检验规则、...
