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总配线架(MDF)强电入侵告警系统技术要求和试验方法
Technical Requirements and Testing Methods of Incoming Power Disturbance Alarm System for Main Distribution Frame
参考页数:37P.;A4
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中小型电信机房环境要求
Environmental Requirements for Telecommunication Houses
参考页数:9P.;A4
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接入网设备过电压过电流防护及基本环境适应性技术要求和试验方法
Technical requirements and test methods for the protection against overvoltages and overcurrents on access network equipment
参考页数:37P.;A4
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模拟微波接立通信系统容量系列及波道配置
Capacity series and radio-frequency channel arrangement for analog microwave relay systems
价格:¥0.00
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100~1000MHz接力通信系统的容量系列波道配置及设备的主要技术要求
Capacity series and radio-frequency channel arrangement and equipment main technical specifications for 100~1000MHz radio relay communication systems
价格:¥0.00
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25~1000 MHz陆地移动通信网的容量系列及频道配置
Capacity series and frequency channels arrangement in 25 to 1000MHz land mobile telecommunication network
价格:¥0.00
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总配线架(MDF)强电入侵告警系统技术要求和试验方法
价格:¥0.00
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