The concept of packet switching and basic facts of CHINAPAC are explained. The form and network structure of meteorological communication network constructed by packet switching network and the way of installing and operating DTE are explained.

• 介绍了分组交换的概念和CHINAPAC的概况，并重点介绍了利用分组交换网组建气象通信网的实现形式和网络结构及DTE的安装测试和使用方法