摘要
设计了基于P89C669的无线PBX系统。主CPU采用P89C669,利用它的双串口,实现与两个无线模块通信,同时给出了硬件电路介绍,采用P89C669可以使整个控制系统具有成本低、性能高等优点。同时该系统解决了偏远山区等特殊场所布线难的问题,满足在此类场合下对通信系统的要求。
A wireless PBX system based on P89C669 is developed. By using P89C669＇s dual serial ports, it is communicated with two wireless modules while the hardware circuit is introduced. The control system has advantages of low cost and high performance by using P89C669. This system can solve the problem of wiring difficult in some special places, and satisfy the requirement of communication system.
出处
《现代电子技术》
2010年第17期64-65,68,共3页
Modern Electronics Technique
关键词
无线PBX系统
交换网络
交换机
程控交换
wireless PBX system
exchange network
switches
program-controlled exchange
