电力系统自动化和办公室自动化的出现,提出了把计算机技术和通信技术结合起来这一问题,而通信处理机的实现则是解决这一问题的关键之关键.为此,我们在WJB85-I型单板计算机的基础上,遵照X·25规程,设计了一个点对点结构的平衡型通信处理机,成功地实现了相距四公里多的两台DJS-131机的联机.本文旨在对该通信处理机低层功能的实现作一介绍. The emergence of power system automation and office automation, put forward the computer technology and communication technology to combine this problem, and the realization of communication processor is the key to solve this problem.To this end, we WJB85-I type single On the basis of the board computer, a point-to-point balanced communications processor is designed according to the X.25 protocol and the two DJS-131s are successfully connected at a distance of more than four kilometers.This paper aims to analyze the communication processor The realization of low-level functions for an introduction.