YD/T 2052-2015.Security protection requirements for the domain name system. 1范围 YD/T 2052规定了公众电信网和互联网相关域名系统分安全保护等级的安全防护要求，涉及到业务及应用安全、网络安全、设备及软件系统安全、物理

YD/T 1997.3-2015.Drop optical fibre cables for telecommunication Part3:Pre-terminated optical cable assemblies. 1范围 YD/T 1997.3规定了单芯单模引入光缆预制成端组件( 以下简称

YD/T 1991-2016.Technical requirements for Nx40Gbit/s optical wavelength division multiplexing(WDM)systems. 1范围 YD/T 1991规定了单通路速率为40Gbit/s 密集波分复用(DWDM)

YD/T 1997.1-2014.Drop optical filbre cables for telecommunication Part 1: Bow-type optical fibre cables. 1范围 YD/T 1997.1规定了蝶形光缆(以下简称光缆)的术语和定义、产品型号、要求、

YD/T 1948.8-2015.Technical requirements of Ethernet over Transport (EOT) Part 8: Ethemet LAN(E-L AN) service and Ethemet tree(E-Tree) service. 1范围 YD/

YD/T 1850-2015.2GHz TD-SCDMA digital cellular mobilre telecommunication network tset method of HSUPA RAN. 1范围 YD/T 1850规定了TD-SCDMA在引入高速上行分组接入(HSUPA)功能

YD/T 1572-2010.Testing methods for A10/A11 interfaces in 800MHz/2GHz cdma2000 digital Cellular mobile communication network. 1范围 YD/T 1572规定了800MHz/2G

YD/T 1565-2010.Testing methods for 800MHz/2GHz cdma2000 digital cellular mobile communication networks:signaling conformance for high rate packet data

YD/T 1559-2010.Testing Method in 800MHz/2GHz cdma2000 Digital Cellular Mobile Communication Network:A1/A2 Interface. 1范围 YD/T 1559规定了800MHz/2GHz cdma2

YD/T 1484-2011.Measurement method for radiated RF power and receiver performance of mobile stations. 1范围 YD/T 1484规定了移动台的空间射频辐射功率和接收机性能测量方法,包括频率范围和限值。

YD/T 1448-2006.General Technical Requirements for Broadband Customer Network Based on Telecommunication Network. 1范围 YD/T 1448规定了基于公用电信网的宽带客户网络(如无特别说明

YD/T 1411-2007.Testing Methods of 2GHz TD-SCDMAWCDMA Digital Cellular Mobile Communication Network Core Network Equipment ( Phase I ). 1范围 YD/T 1411规定