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  • BSI
    BS EN IEC 61375-1:2026 Electronic railway equipment. Train communication network (TCN) - General architecture
    Edition: 2026
    $586.07
    / user per year

Description of BS EN IEC 61375-1:2026 2026

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.

Standard NumberBS EN IEC 61375-1:2026
TitleElectronic railway equipment. Train communication network (TCN) - General architecture
StatusDefinitive
Publication Date2026-04-21
ReplacesBS EN 61375-1:2012
Identical National Standard OfEN IEC 61375-1 Ed.4.0, IEC 61375-1 Ed.4.0
DescriptorsConformity, Information exchange, Railway equipment, Electrical engineering, Electrical equipment, Railway vehicles, Approval testing, Communication networks, Data transfer, Electronic engineering, Electronically-operated devices
ICS45.060.01 Railway rolling stock in general
CommitteeGEL/9
ISBN978 0 539 20418 6
PublisherBSI
Pages68



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About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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