关键词: 铁路接入网, 专用业务, V5接口及消息流程

Abstract:

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.

Key words: railway communication network;specialized services;V5 interface and message transfer