YD/T 970-1998.Generic conference control.1范围YD/T 970提供音像会议和视听会议的终端和多点控制器(MCUs)的会议管理和控制的高层框架。它围绕通用的会...
YD/T 973-1998.SDH 155Mb/s and 622Mb/s Technical conditions of optical transimitter module and receiver module.1范围YD/T 973规定了SDH 1SSMb/s和622Mb/s光发送模块和光接收模...
YD/T 955-1998.Letter - card.1范围YD/T 955规定了邮简的定义,品种规格,技术要求,试验方法,检验规则以及包装、标志和贮存等内容。YD/T 955适用于邮政...
YD/T 954-1998.Technical requirements and test method of digital stored program control dispatching equipment.1范围YD/T 954规定了数字程控调度机的技术条件,主要内容包...
YD/T 953-1998.General technical specifications of 2xSTM - 1SDH microwave telecommunication systems for 4~11 GHz.1范围YD/T 953规定了4~11GHz2XSTM-1SDH大容量数字微波接力通...
YD/T 950-1998.Technical requirements and test methods for protection against overvoltages and overcurrents on telecommunication switching equipment.1范围YD/T 950规定了电信交换...
YD/T 944-2007.Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications.1范围YD/T 944规定了通信电源设备防雷的定义、分类、...
YD/T 925-1997.Fiber optic cable end case.1范围YD/T 925规定了光缆终端盒的产品型号、结构、技术要求、试验方法、检验规则和包装、标志、运输、储存...
YD/T 926.1-2001.Telecommunication Generic Cabling System for Building Part 1: Generic Specification.1范围YD/T 926.1规定了接入网内大楼通信综合布线系统的总体结构...
YD/T 926.2-2001.Telecommunication Generic Cabling System for Building Part 2: Cable Requirements for Generic Cabling.1范围YD/T 926.2规定了综合布线中的水平布线和主干布...
