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数字同步网节点时钟系列及其定时特性
Node clock set of digital synchronization network and its timing feature
价格:¥0.00
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数字同步网独立型节点从钟设备技术要求及测试方法
Technology requirement and test method of stand alone synchronization equipment in digital synchronization network
价格:¥0.00
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在三个或多个使用1920Kbit/s以内数字信道的视听终端之间建立通信的规程
Regulations for establishment of communications between audiovisual terminals with 3 or more digital channels at below 1930kbit/s
价格:¥0.00
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TMN管理业务和电信管理域
TMN management services and telecommunication managed areas
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ISDN的管理原则
Principles for eh maintenance of ISDNs
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支持宽带多媒体检索型业务的网络能力
Network capabilities to support broadband multimedia retrieval services
价格:¥0.00
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市内电话网光纤数字传输系统工程设计暂行技术规定
Temporary technical regulations for engineering design of optical fiber digital transmission system of urban local telephone network
价格:¥0.00
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采用视听电信业务中64~1920kbit/s信道帧结构的LSD/HSD/MLP信道单工应用的实时控制协议
A real time control protocol for simplex applications using LSD/HSH/MLP channels of fram structure for A64TO 1920kbit/s channel in audiovisual teleservices
价格:¥0.00
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同步数字体系(SDH)管理网网元(NE)信息模型的基本规范
价格:¥0.00
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