YD/T 5015-2007.Specifications of Engineering Drawing and Graphical Symbols for Communication Projects Diagrams. 1总则 1.0.1为了使电信工程图纸做到规格统一、画法一致、图面清晰，符合施

YD/T 1711-2007.Technical Specifications and Testing Methods for Repeater of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network. 1范围 YD/T 1711

YD/T 1712-2007.Environmental Requirements for Telecommunication Houses. 1范围 YD/T 1712规定了中小型电信机房的温湿度、气压、洁净度、机械和电磁环境要求。 YD/T 1712适用于接入网机房、远端模块局、小区电信机房、小

YD/T 5145-2007.Provisional Specifications of Engineering Acceptance for Automatically Switched Optical Network(ASON). 1总则 1.0.1YD/T 5145是自动交换光网络(ASON)

YD/T 5149-2007.Acceptance Speeification for SDH Local Network Optical Fiber Cable Transmission Project. 1总则 1.1YD/T 5149是SDH本地网光缆传输工程施工质量检验、随工验收和竣工验收的

YD/T 5150-2007.Acceptance Specification of MSTP Based on SDH Engineering for Local Optical Fiber Cable Transmission Project. 1总则 1.0.1YD/T 5150是基于SDH多

YD/T 5154-2007.Acceptance Specification for Fixed Softswitch Engineering. 1总则 1.0.1YD/T 5154是软交换T程质量检查、检验、随工验收、工程初验终验的依据。适用于软交换工程的新建工程,扩建和改建工程可参照执行。 1

YD/T 5155-2007.Specifications of Engineering Design for Fixed Network Intelligence. 1.总则 1.0.1YD/T 5155适用于固定电话网智能化新建工程(以下简称:固网智能化工程)。扩建、改建工程设计在充分考虑原有设

YD/T 1716-2007.Technical Requirements for Interworking Gateway in Peer to Peer Multimedia Messaging Service. 1范围 YD/T 1716主要规定不同运营商点对点多媒体消息业务网间互通设备技术要

YD/T 1717-2007.Testing Methods for Interworking Gateway in Peer to Peer Multimedia Messaging Service Interworking. 1范围 YD/T 1717规定了点对点多媒体消息网间互通设备即互联网关