YD/T 1960-2009.Technical Requirements for Ultra Long Haul NX 10Gbit/s Wavelength Division Multiplexing(WDM) Systems. 1范围 YD/T 1960规定了Nx10Gbit/s的单纤单向超长

YD/T 1959-2009.Technical Requirements for 2048kbit/s Optical Interface Between Relaying Protection Equipment and Multiplexer. 1范围 YD/T 1959规定了继电保护设备和复

YD/T 1958-2009.Technical Requirements for PDH Virtual Concatenation and GFP Mapping. 1范围 YD/T 1958规定了准同步数字体系(PDH)信号虚级联接口的规范和通用成帧规程(GFP)帧映射进PDH的方法。 YD/

YD/T 1957.1-2009.Technical Requirements for Automatically Switched Optical Network (ASON) Node Part 1: Technical Requirements for SDH-based ASON Node.

YD/T 1956-2009.Technical Requirements for Air Interface of 800MHz SCDMA Wideband Radio Access Network System. 1范围 YD/T 1956规定了800MHz SCDMA宽带无线接入系统的空中接

YD/T 1970.10-2009.Maintenance Requirements of Power Supply for Telecommunication Stations/Sites Part 10: Valve Regulated Lead Acid Battery. 1范围 YD/T 1

YD/T 1971-2009.Technical Requirement for UAProf in Mobile Communication Network. 1范围 YD/T 1971规定了在无线终端和源服务器之间的用户代理特性(UAProf) 的产生、传输和处理的技术要求。 YD/T 1971

YD/T 1972.1-2009.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunicationnetwork multimedia domain equipment Part 1:

YD/T 1972.2-2009.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunication network multimedia domain equipment Part 2:

YD/T 1972.3-2009.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunicationnetwork multimedia domain equipment Part 3:

YD/T 1972.4-2009.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunicationnetwork multimedia domain equipment Part 4:M

YD/T 1973.1-2009.800MHz/2GHz cdma2000 digital cellular mobile telecommunication network multimedia domain equipment test method-Part 1:Call control eq