YD/T 2243-2016.Security protection requirements for information service system of telecom network and internet. 1范围 YD/T 2243规定了电信网和互联网信息服务业务系统分安全保护等级

YD/T 2199-2010.Technical requirement for fire stopping safety of communication room. 1范围 YD/T 2199规定了通信机房在防火分隔构件上或构件与构件之间形成的贯穿孔口、预留空开口及电缆沟槽防火封堵的安全要求。

YD/T 2199-2010.Technical requirement for fire stopping safety of communication room. 1范围 YD/T 2199规定了通信机房在防火分隔构件上或构件与构件之间形成的贯穿孔口、预留空开口及电缆沟槽防火封堵的安全要求。

YD/T 2191.4-2012.Electromagnetic compatibiity for installation and mitigation guidelines Part 4: Immunity to HEMP - Specifications for protective devi

YD/T 2156-2010.Technical conditions for wireless RF optical module. 1范围 YD/T 2156规定了无线通信用射频传输光模块(以下简称RF光模块)的技术要求、测试方法、可靠性试验、检验规则及标志、包装、运输和贮存。 YD/T 215

YD/T 2187-2010.Technical requirements for Home Subscriber Server (HSS) of the unified IMS (Phase 1). 1范围 YD/T 2187规定了统一IMS第一阶段中归属用户服务器(HSS)设备的技术要求，主要内

YD/T 2186-2010.Technical requirements for Proxy Call Session Control Function (P-CSCF) of the unified IMS (Phase 1). 1范围 YD/T 2186规定了统一IMS第一阶段代理会话控制设备

YD/T 2183-2010.Technical requirement for IMS based PoC service equipment (Phase 2). 1范围 YD/T 2183规定了在基于IMS的移动通信分组网络上开展PoC业务(第二阶段)的PoC服务器和PoC终端的业务功能、网络

YD/T 2182-2010.Technical requirement for IMS based PoC service general(Phase 2). 1范围 YD/T 2182规定了在基于IMS的移动通信分组网络上开展PoC业务(第二阶段)的应用以及PoC业务(第二阶段)的基本概念、业务

YD/T 2177-2010.Technical requirements of IP storage equipment based on Internet Small Computer System Interface (iSCSI). 1范围 YD/T 2177规定了基于互联网小型计算机系统接