随着中国铁路的高速发展,铁路通信网络和设备也大量增加,设备分布更加广泛,铁路通信网正在迅速发展成为一个高度数字化的大型通信网络,包括传输与接入网系统、GSM-R数字移动通信系统、数据通信系统、调度通信系统、综合视频监控系统、同步及时钟分配系统、会议系统、动力与环境监控系统、应急通信系统等。 With the rapid development of China’s railways, the number of railway communication networks and equipment has also increased dramatically. Devices are more widely distributed. The railway communication network is rapidly becoming a highly digitized and large-scale communication network including transmission and access network systems, GSM-R digital mobile Communication system, data communication system, dispatch communication system, integrated video monitoring system, synchronization and clock distribution system, conference system, power and environment monitoring system, emergency communication system and so on.