电子铁路设备 - 列车通信网络（TCN）第1部分：通用架构

[中文适用范围]： IEC 61375-1:2026 标准包含该标准的官方正式版本及其修订对照版本（红线条版）。红线条版仅提供英文，方便用户快速、简便地对比官方标准与其上一版本之间的所有变更。 IEC 61375-1:2026 适用于开放式列车数据通信系统的架构，涵盖以下内容： - 开放式列车各车辆之间的数据通信系统架构； - 列车内部车辆范围内的数据通信架构； - 列车与地面之间的数据通信架构。 该标准对列车网络技术的适用性，有助于实现国际交通中开放式列车内各车辆之间的互联互通。车辆内部的数据通信系统以推荐方案形式提供，以应对上述列车通信网络（TCN）。在任何情况下，供应商必须证明所提议的列车骨干网与所提议的编组网络之间的兼容性。 经购买方与供应商协商一致，IEC 61375-1 也可适用于封闭式列车及动车组列车。 本第四版取消并取代了 2012 年发布的第三版，属于技术修订版。相较于上一版本，本版包含以下重大技术变更： a) 扩展列车骨干网拓扑结构：引入聚合型与分离型拓扑； b) 在分离型列车骨干网拓扑中增加独立的编组方向检查功能； c) 引入无线技术：包括无线列车骨干网和无线编组网络； d) 支持虚拟网络功能； e) 明确适用于开放式列车管理系统（OMTS）域的数据分类及协议要求； f) 新增关于列车通信网络安全条款。 [外文原描述]： IEC 61375-1:2026 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61375-1:2026 applies to the architecture of data communication systems in open trains, i.e. it covers the architecture of a communication system for the data communication between vehicles of the said open trains, the data communication within the vehicles and the data communication from train to the ground. The applicability of IEC 61375-1 to the train network technologies allows for interoperability of individual vehicles within open trains in international traffic. The data communication systems inside vehicles are given as recommended solutions to cope with the said TCN. In any case, proof of compatibility between a proposed train backbone and a proposed consist network will have to be brought by the supplier. IEC 61375-1 might be additionally applicable to closed trains and multiple unit trains when so agreed between purchaser and supplier. This fourth edition cancels and replaces the third edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Extension of train backbone topologies: aggregated and segregated topology; b) Added independent consist orientation check with segregated train backbone topology; c) Introduction of wireless technologies: wireless train backbone and wireless consist network; d) Possibility of virtual networks; e) Definition of data classes and protocol requirements suitable for the OMTS domain; f) New clause about cybersecurity in train communication networks.