接入网在铁路通信中的应用

随着铁路建设不断扩大,铁路通信迅速发展,按照铁路线路点多线长以及部分车站处于偏远山区的特点,逐步构成了集中管理、分散使用的全程全网铁路专用通信网络,实现了通信数字化和综合化。文中着重阐述了铁路音频业务和自动业务在接入网中的实现方式及需要注意的事项。

Applications of the Communication Access Network in the Railway

Railway communication technology has developed rapidly due to the vast expansion of the railway network over recent years.Considering such factors as long distance,numerous different railway lines,and many railway stations located in remote mountainous areas,the railway communications network has developed specialized centralized management plus a decentralization of its communications network system,achieved by providing considerably more sophisticated digital technology and integrated communication services.This article focuses on the methods for accessing the communications network and the important issues that require attention throughout the management of the railway’s audio signalling and automatic services.