I2C 总线扩展在数字时统微波通信系统中的应用

摘要

数字时统微波传输系统主要用于主站到从站之间时统、数据、话音信号等综合业务的双向视距传输。设备中监控模块实现了参数设置、参数预览、故障告警、故障查询等 BIT 功能，为了满足整个设备可靠性高、组合灵活、设备简单等要求，监控模块采用 I2 C 总线扩展的设计原则，用两根线实现了对各个功能单元的监视和控制，大大提高了工作效率和可靠性。%Digital time system microwave transformission is mainly applied for time system ,data ,voice signal between master station and slave station in horizon bidirectional transmission .Parameter setting ,parameters preview ,fault alarm and alarm query functions are realized by montoring module in equipment .To satisfy requirment of high reliability ,flexible com-bination and simplified device ,I2 C Bus expansion principle is adopted in the design .The two lines are performed monitoring and control for each function unit .It can greatly improve the efficiency and reliaility .