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6月27日,民航华东虹桥机场业务数据网完成升级改造并顺利实现割接,开始投入使用。民航华东空管局充分利用现代信息通信技术,引进美国摩托罗拉公司生产的网络传输交换设备,合理地利用中国电信的数字数据电路(DDN),对以往所使用的传统的通信枢纽设施进行了彻底的技术改造,建成了一个高质量、高可靠性和高效率的空管业务数据传输交换系统。新建系统的主、备用设备可灵活切换,各种业务信息的走向可灵活配置,实现了在一条数字电路上同时传输雷达数据、管制员移交话音、陆空
On June 27, Civil Aviation Hongqiao Airport Business Data Network completed upgrading and smoothing cutover, began to put into use. CAAC East China Aviation Authority made full use of modern information and communication technology, the introduction of the United States Motorola’s network transmission equipment, the rational use of China Telecom’s digital data circuit (DDN), the traditional communications hub facilities used in the past conducted a thorough Technical transformation, built a high-quality, high reliability and high efficiency air traffic control data transmission switching system. The new system of main and backup equipment can be flexibly switched, various business information can be flexibly configured to achieve the simultaneous transmission of radar data on a digital circuit, the controller to hand over voice, land and air