YD/T 1544.3-2007.Technical Specification for Uu Interface of 2GHz WCDMA Digital Cellular Mobile Communication Network Physical Layer (Phase I) Part 3:

YD/T 1047-2000.Test Specification for 800MHz CDMA Digital Cellular Mobile Telecommunications Network : Base Station Subsystem. 1范围 YD/T 1047规定了800MHz

YD/T 1535-2006.Technical Requirements of Equipment Security for PSTN - Calling Number Information. 1范围 YD/T 1535规定了应用于公用电信网上的各类数字程控交换设备、移动交换设备、No.7 信令

YD/T 1289.2-2003.Synchronous Digital Hierarchy (SDH) transport network management system technical specification part 2:Element Management System (EMS

YD/T 1253-2003.Test method of intelligent network equipment-Intelligent Peripheral (IP). 1范圈 YD/T 1253规定了对智能外设(IP) 设备的功能、性能和协议的测试要求。 YD/T 1253适用于固定智能网

YD/T 1226-2002.Intelligent network Capabillity Set two (CS-2) Intelligent Network Application Protocol (INAP). 1范围 YD/T 1226规定了支持智能网能力集2所需的智能网应用规程(INA

YD/T 1102-2001.ATM Based Multimedia Broadband Network Specification-Network Performance. 1范围 YD/T 1102规定了基于ATM的多媒体宽带骨干网网络性能要求。主要包括物理层和ATM层网络性能要求。 YD/T

YD/T 1007-1999.Allocation of transmission performance objectives in access network. 1范围 YD/T 1007规定的误码性能指标适用于接人网中NX64bit/s数字连接和基群速率或基群速率以上恒定比特率数字通道。本标

YDN 057-1997. 1范围 YDN 057规定了采用无源光分配网络(ODN),基于一点到多点的拓扑结构,可传送双向交互式业务的光接入网(OAN)的主要技术要求,适用于公用电信网的接入网环境,特别是业务量需求不很大的企事业单位和居民用户,可以提供从64kbit/s到ISDN一次群(2Mbit/

YD/T 1587.1-2007.Technical Specification for 2GHz cdma2000 Digital Cell Mobile Communication Network Management (Phase I)Part 1 Configuration Network