digital data network

An application for digital data network in Shandong Digital Telemetry Seismic Network

数字数据网在山东数字遥测地震台网中的应用

Packet switched digital data network

分组交换数字数据网

Voice access technology on digital data network

数字数据网络中语音接入技术

The Plan for Digital Data Network of KunMing Telecom

昆明电信DDN网络的规划

The Digital Data Network ( DDN )

数字数据网（DDN）

A digital data network ( DDN ) is a data transmission network within which digital channels are utilized for data signal transmission .

数字数据网（DDN）是采用数字信道来传输数据信号的数据传输网。数据通信技术中，一种宽频带的信道。

Based on the experiences of designing Shenzhen Digital Data Network ( DDN ), the general design method of DDN and some important issues concerned with it are discussed .

基于深圳市数字数据通信网（DDN）的设计经验，讨论了设计DDN网的一般方法和关键问题。

Through the medium of versus State Electric Power Corporation digital data network function several in the few years station occur defective get analyses done , introduces DDN equipment maintenance experience .

通过对国家电力公司系统数字数据网运行几年来所发生故障的处理分析，介绍了DDN设备的维护经验。

Digital data network ( DDN ) is contrived to transmit data signals with digital channels ( optical cable or digital microwave ) and digital cross connect ( DXC ) equipment .

数字数据网（DDN）是利用数字信道（光缆或数字微波）及数字交叉连接（DXC）设备来传送数据信号的数据传输网。

Research and Application in Scheme of Digital Fault Recorder Data Network

微机故障录波器数据联网方案的探讨及应用

The construction and application of the digital fault recorder data network for power grid in Shandong Province are also described .

概要介绍了山东电网微机故障录波器数据网络的建立，并举出了应用实例。

It is introduced the management of analogue and digital data in the network center of earthquake administration of Xinjiang , analyzed the method of turning history analogue data into digital platform and explained the application of the platform .

通过介绍新疆数字地震前兆台网中心模拟资料和数字化资料的管理，分析了历史模拟数据转入数字化平台的实现方法，阐述了地震前兆资料进入数字化统一平台的实际应用。