YD/T 1276-2003.Testing methods of SDH multi- service transport platform. 1范围 YD/T 1276规定了多业务传送节点的测试方法，包括SDH测试、以太网测试、ATM测试、时钟测试和网管测试等部分，分别从接口、功能、性能等方面规

YD/T 1275-2003.Technical specification and testing method for Nx64kbit/s baseband modem. 1范围 YD/T 1275规定了基带调制解调器的接口电气性能、线路传输性能、安全性能、电力线防护性能、环境适应性、设备防雷

YD/T 1272.1-2003.Optical fiber connector Part I: type LC. 1范围 YD/T 1272.1对LC型光纤活动连接器簇进行定义和分类;规定了各类接口的图形、配合尺寸;规定了LC型光纤连接器的光学性能、标准连接器和胶合材料的要求;规定了试验方法及质量

YD/T 1272.2-2005.Optical fiber connector Part II : Type MT-RJ Connector Family. 1范围 YD/T 1272.2规定了MT-RJ型光纤活动连接器子系列的术语定义、技术要求和测量方法、可靠性试验分类和试验方法以及标志、包装、

YD/T 1272.3-2005.Optical fiber connector Part 3: Type SC connector family. 1范围 YD/T 1272.3对SC型光纤活动连接器簇进行定义和分类;规定了各类接口的图形、配合尺寸;规定了SC型光纤连接器簇的光学性能、标准连接器和

YD/T 1272.4-2007.Optical Fiber Connector Part4 : Type FC. 1范围 YD/T 1272.4规定了FC型光纤活动连接器类的定义和分类，各类接口的图形、配合尺寸, FC型光纤活动连接器类的光学性能、标准连接器和胶合材料的要求，试验方法、质量评定程序

YD/T 1277.1-2003.Technical speification and testing method of caller identity delivery based on PSTN part 1: technical specification. 1范围 YD/T 1277.1规

YD/T 1289.6-2009.Technical specification for SDH transport network management system part VI: EMS-NMS interface information model based on IDL IIOP. 1

YD/T 1290.3-2008.Technical Requirements of Peer to Peer Short Message Interworking between Networks Part 3:Interworking between PLMN and PLMN. 1范围 YD/

YD/T 1312.1-2008.Requirements and Measurement Methods of Electromagnetic Compatibility for Radio Communication Equipment Part 1:Common Technical Requi