Abstract: On the basis of the characteristics of railway data communication networks, the network structure of the type-10 Centralized Signal Monitoring (CSM) system and the experience from project implementation, this paper standardizes the scheme for connecting the type-20 CSM system for railways to the data communication network. It summarizes the routing protocol for interconnection between the Customer Edge (CE) equipment of the CSM system and the Provider Edge (PE) equipment of the data communication network. It also puts forward a new solution for connecting the type-20 CSM repeater station to the data communication network with the help of a transmission platform. The proposed method not only reduces the implementation and maintenance costs at both the signaling side and the communication side, and improves the access reliability of the repeater stations, but also standardizes the configuration of the CE station Ethernet switches for the type-20 CSM master stations and repeater stations.

Key words: railway signaling, centralized signal monitoring system, data communication network, repeater station’s access to network, configuration standardization

摘要： 结合铁路数据通信网特点、10型信号集中监测系统网络结构及项目实施经验，对20型铁路信号集中监测系统接入数据通信网方案进行标准化，并提炼集中监测系统侧用户边缘设备（CE）及数据通信网侧供应商边缘设备（PE）之间互联路由协议的要点，对20型信号集中监测中继站借助传输平台接入数据通信网提出新的解决思路。该方法不但降低信号/通信侧的实施成本、维护成本，还提高中继站接入可靠性，使得20型集中监测主站和中继站车站CE交换机配置标准化。

关键词: 铁路信号, 集中监测系统, 数据通信网, 中继站接入, 配置标准化