铁路区间通信系统中的数字语音终端设计

Design of digital voice terminal in Railway Section Communication System

针对目前铁路区间通信的需求,本文提出了一种铁路区间光纤通信系统。介绍了用于该系统的语音终端的设计,MC145481芯片的结构及功能设计,为满足语音终端数据处理和MC145481芯片时序要求的CPLD设计。

Based on the current need of railway section communication,it was proposed that a kind of Optical Fiber Communication System of railway section.This paper introduced the design of voice terminal,the structure and function of MC145481,and the design of CPLD,which met the needs of terminal data processing and MC145481 timing.