开放式传输网络在地铁专用通信中的应用

Applications of open transport networks in subway private communications

目前地铁通信网广泛采用了开放式传输网络(Open Transport Network,OTN)传输系统,OTN是专为地铁设计的综合传输接入系统。文章对OTN的特点、组成、功能、结构和帧结构等进行了介绍,分析了OTN构成地铁专用通信系统的工作原理,为系统运行和维护提供了理论依据。

As an integrated transmission access system specially designed for subways, Open Transport Network （OTN） is at present widely adopted in subway communication networks. This paper introduces its feature, composition, functions, structure and frame structure and analyzes its operating principle as a private subway communication system, offering the theoretical basis for its operation and maintenance.