The key technologies of the industrial wireless network system based on the WIA-PA standards are introduced and the development, testing and application of the system are explained.
介绍了WIA-PA标准规范的工业无线网络系统的关键技术，并对该系统的研发、测试和应用进行了论述。
The Elason PA system USES a network configuration rather than having all system elements connected to a central controller. This architecture gives real freedom in system design.
埃勒森公共广播系统采用网络结构，而不是把各个系统要素连接到一个中央控制器上，而这样的结构使得系统设计获得了真正的自由。
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