YD/T 590.2-2005.Plastic jacket joint closure for telecommunication cable Part 2:Heat shrinkable joint closure. 1范围 YD/T 590.2规定了通信电缆塑料护套接续用热缩套管的型式、规格、

YD/T 590.3-2005.Plastic jacket joint closure for telecommunication cable Part 3:Plastic injection joint closure. 1范围 YD/T 590.3规定了通信电缆塑料护套接续用注塑熔接套管的型式

YD/T 590.4-2005.Plastic jacket joint closure for telecommunication cable Part 4: Assembly joint closure. 1范围 YD/T 590.4规定了通信电缆塑料护套接续用装配套管的型式、规格、要求、试验方

YD/T 590.5-2005.Plastic jacket joint closure for telecommunication cable Part 5: Aeriferous assembly joint closure. 1范围 YD/T 590.5规定了通信电缆塑料护套接续用通气式装配套

YD/T 637-2006.DC-DC Conversion equipment for telecommunication. 1范围 YD/T 637规定了通信用直流-直流变换设备的组成、分类、要求、试验方法、检验规则和标志、包装、运输和储存。 YD/T 637适用于向通信设备供电的直流一-直流变

YD/T 590.1-2005.Plastic jacket joint closure for telecommunication cable Part 1: General specification. 1范围 YD/T 590.1规定了通信电缆塑料护套接续套管的型式、规格、通用要求、试验方法、

YD/T 589-2006.Basic Requirement of Transmission Impairment Tolerance for Group 3 Document Facsimile on the Telephone Network. 1范围 YD/T 589规定了在公用电话网上使用

YD/T 1345-2005.Technical Requirements for SDH-based MSTP Embedded with RPR. 1范围 YD/T 1345规定了基于SDH的多业务传送节点(MSTP) 设备上实现弹性分组环(RPR) 功能的总体技术要求，包括节点的基本功能、接口

YD/T 1280-2003.900/1800MHz TDMA Digital Celler Mobile Telecemmunicationnetwork management interface technical specification - Interface definition bas

YD/T 282-2000.General reliability test methods for communication equipment. 1范围 YD/T 282规定了通信设备进行可靠性试验的一般原则、程序和试验方法。 YD/T 282适用于预期寿命服从指数分布或近似指数分布的，以平均

YD/T 1248.4-2005.Part IV:Test methods of short message centre based on PSTN. 1范围 YD/T 1248.4规定了对固定电话网短消息中心进行测试的测试结构、测试环境和测试内容等。其中测试内容包括基本业务测试、基本功能测试、性

YD/T 1340.3-2005.Technical requirements of Authentication Authorization Accounting (AAA) Server interface part 3: P Phone. 1范围 YD/T 1340.3规定了为实现IP电话的认