Browse Standards
1686+ standards in database
1686 result(s) found
厅堂扩声特性测量方法
Methods of measurement for the characteristics of sound reinforcement in auditoria
声系统设备 第9部分：人工混响、时间延迟和移频装置测量方法
Sound system equipment - Part 9: Methods of measurement for artificial reverberation, time delay and frequency shift equipment
通信用单模光纤 第7部分：接入网用弯曲损耗不敏感单模光纤特性
Single-mode optical fibres for telecommunication - Part 7: Characteristics of a bending loss insensitive single-mode optical fibre for the access network
煤矿用阻燃通信光缆
Flame resistant optical fibre cables for communication for mine
反垃圾电子邮件网关技术要求
Technical requirement for anti－spam Email gateway
平面光波导集成光路器件 第2部分：基于阵列波导光栅（AWG）技术的密集波分复用（DWDM）滤波器
Integrated optical path devices based on planar lightwave circuit - Part 2 ：DWDM filter based on AWG technology
平面光波导集成光路器件 第1部分：基于平面光波导（PLC）的光功率分路器
Integrated optical path devices based on planar lightwave circuit - Part 1：Optical power splitter based on PLC technology
绝缘外径在1mm以下的极细同轴电缆及组件
Ultrafine coaxial cables with insulation diameter below 1mm and cable assemblies
掺稀土光纤 第1部分：双包层掺镱光纤特性
Rare earth doped optical fibre - Part 1: Characteristics of double-cladding ytterbium-doped optical fibre
基于IP网络的视讯会议终端设备技术要求 第1部分：基于ITU-T H.323协议的终端
Technical requirement for IP video terminal equipment - Part 1: terminal based on ITU-T H.323
地面数字电视广播激励器技术要求和测量方法
Technical requirements and measurement methods of digital terrestrial television broadcasting exciter
地面数字电视广播发射机技术要求和测量方法
Technical specifications and methods of measurement for digital terrestrial television broadcasting transmitters
地面数字电视广播单频网适配器技术要求和测量方法
Technical requirements and measurement methods of digital terrestrial television broadcasting single frequency network adapter
基于IP网络的视讯会议系统设备技术要求 第4部分：网守（GK）
Technical requirements for IP video conference system devices - Part 4: Gatekeeper
基于IP网络的视讯会议系统设备技术要求 第3部分：多点控制单元（MCU）
Technical requirements for IP video conference system devices - Part 3: multipoint control unit
光缆 第5部分：分规范 用于气吹安装的微型光缆和光纤单元
Optical fibre cables - Part 5: Sectional specification - Micro-duct optical fibre cables and fibre units for installation by blowing
IP电话路由协议（TRIP）技术要求
Technical requirements of telephony routing over IP ( TRIP )
通信产品能耗测试方法通则
General principles of energy consumption test methods for telecommunication equipment
声音广播中音频噪声电平的测量
Measurement of audio-frequency noise voltage level in sound broadcasting
自动交换光网络（ASON）测试方法 第1部分：基于SDH的ASON
Test specifications for automatically switched optical network（ASON）- Part 1：Test specifications for SDH-based ASON