铁路客运专线数据通信网的设计

铁路客运专线通信系统除了提供语音、数据、图像等多媒体的通信手段外，作为通信统一平台，还为列车控制、信息系统、运营调度系统提供不同层次、不同需求的数据通信网络服务。因此需要构建一个支持数据、语音和图像业务交换的多业务传输平台（MSTP）。针对铁路客运专线给出数据通信网的构建方式，文章对三种网络设计方案进行比较，指出各自的可行性。

Design of Data Communication Network in Railway Passenger-dedicated Line

In addition to providing voice, data, images and other multimedia communication means, the communication system for railway passenger-dedicated line could also provide data communication network services at different levels and different demands for train control, information systems and integrated scheduling system. Thus it its necessary to build a Multi-Service Transport Platform （MSTP） in supporting the data, voice and image exchange. This paper describes the construction methods for data communications network based on certain railway passenger-dedicated line, provides three network design solutions, and gives their comparisons and feasibilities.