The system uses CPLD (Complex Programmable Logic Device), special-application encoder and decoder to realize TDM of multiplex digital signals transmission and relies on the symbol of synchronization to realize the synchronization of the system.

• 系统主要采用了CPLD(大规模可编程逻辑器件)和专用的编解码芯片运用时分复用技术实现多路数据传输，依靠同步标志实现系统的同步功能。