YD/T 5119-2005.Design Specifications of MSTP Based on SDH Engineering for Local Optical Fiber Cable Transmission Project.1总则1.0.1YD/T 5119适用基于SDH的MSTP技术的传输网络...
YD/T 1058-2000.High Frequency Switching Power Supply System for Telecommunications.1范围YD/T 1058规定了通信用高频开关组合电源(以下简称电源)的组成、分类、要...
YD/T 1037-2000.900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network Technical Specification of CAMEL Application Part(CAP).1范围YD/T 1037规定了gsmSSF、 gsmSCP 和...
YD/T 5136-2005.Interim Provisions of Acceptance for IP Videoconference System Engineering.1总则1.0.1YD/T 5136是IP视讯会议系统设备安装工程随工检验、初步验收和竣...
YD/T 757-1995.1范围YD/T 757规定了微波铁塔及各类通信铁塔(角钢塔)的技术条件。YD/T 757适用于自立式角钢微波铁塔及各类通信铁塔的设计和制造...
YD/T 841-1996.1范围YD/T 841规定了地下通信管道用硬质聚氯乙烯及高、低密度聚乙烯塑料管材(以下简称管材)的产品分类及型号、形状和结构尺寸...
YDC 014-2008.Technical Requirement of Base Station Subsystem(BSS) for 800MHz CDMA 1X Digital Cellular Mobile Communication Network.1范围YDC 014文件规定了800MHz CDMA 1X数字蜂...
YD/T 5135-2005.Interim Provisions of Engineering Design for IP Videoconference System.1总则1.0.1YD/T 5135适用于基于IP网络传输、满足ITU_H. 323标准和不需设置专用会...
YD/T 723.2-2007.Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable Part 2:Laminated Aluminium Plastic Strip.1范围YDT 723-2007的YD/T 723.2规定了通信电...
YD/T 1149-2001.IP Network Technical Requirement - Charging.1范围YD/T 1149规定了基于IP网络的通用计费参考模型、计费参数。本标准旨在指导未来对基于IP网...
