prEN IEC 61375-1:2024
(Main)Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture
Electronic railway equipment - Train communication network (TCN) - Part 1: General architecture
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk (TCN) - Teil 1: Allgemeiner Aufbau
Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 1: Architecture générale
Železniške elektronske naprave - Komunikacijsko omrežje vlaka TCN) TCN - Splošna arhitektura
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2025
Železniške elektronske naprave - Komunikacijsko omrežje vlaka TCN) TCN -
Splošna arhitektura
Electronic railway equipment - Train communication network (TCN) - Part 1: General
architecture
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk (TCN) - Teil 1:
Allgemeiner Aufbau
Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 1:
Architecture générale
Ta slovenski standard je istoveten z: prEN IEC 61375-1:2024
ICS:
45.020 Železniška tehnika na Railway engineering in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
9/3149/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61375-1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-11-29 2025-02-21
SUPERSEDES DOCUMENTS:
9/2885/CD, 9/2922A/CC
IEC TC 9 : ELECTRICAL EQUIPMENT AND SYSTEMS FOR RAILWAYS
SECRETARIAT: SECRETARY:
France Mr Denis MIGLIANICO
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clauses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC clauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Electronic railway equipment – Train communication network (TCN) – Part 1: General architecture
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
9/3149/CDV – 2 – IEC CDV 61375-1 © IEC 2024
CONTENTS
1 Scope . 9
2 Normative references . 9
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 9
3.1 Terms and definitions . 9
3.2 Abbreviations and acronyms . 16
3.3 Conventions . 18
3.3.1 Base of numeric values . 18
3.3.2 Naming conventions . 18
3.3.3 State diagram conventions . 18
4 Basic architecture . 18
4.1 General . 18
4.2 High-Level Architectural Realms . 18
4.3 Technology and components . 20
4.3.1 Technology classes . 20
4.3.2 Component types . 20
4.4 Hierarchical structure . 20
4.4.1 Network levels . 20
4.4.2 Train backbone level . 21
4.4.3 Consist network level . 21
4.4.4 Interface between train backbone and consist network . 22
4.4.5 End devices connected to train backbone . 23
4.4.6 On-Board Network Structures . 23
4.5 Network configurations . 25
4.6 Train to ground connection (option) . 25
5 Train backbone . 26
5.1 General . 26
5.2 Train backbone topology . 27
5.2.1 General . 27
5.2.2 Train backbone based on bus technology . 27
5.2.3 Train backbone based on switched technology . 27
5.2.4 Train Backbone based on wireless technology . 28
5.3 Train compositions . 30
5.4 Train backbone node numbering . 31
5.5 Train directions . 31
5.5.1 Vehicle . 31
5.5.2 Consist . 31
5.5.3 Closed train . 32
5.5.4 Train . 33
5.6 Train inauguration . 34
5.6.1 Objectives . 34
5.6.2 Node sequence and orientation discovery . 34
5.6.3 Train network directory . 34
5.6.4 Train directory . 34
5.6.5 Train inauguration control . 37
5.6.6 Node states . 38
5.6.7 Node roles . 41
5.6.8 Performance . 41
IEC CDV 61375-1 IEC 2024 – 3 – 9/3149/CDV
5.6.9 Independent consist orientation check (Option) . 41
6 Consist network . 42
6.1 General . 42
6.2 Scope of standardization . 42
6.3 Consist network topology . 43
6.3.1 Consist network based on bus technology (MVB, CCN) . 43
6.3.2 Consist network based on switched technology (ECN) . 44
6.3.3 Consist network based on wireless technology (WLCN) . 46
6.3.4 Sub-networks . 46
6.3.5 Heterogeneous consist network . 47
6.4 Gateway . 47
6.4.1 General . 47
6.4.2 Functional description. 47
6.4.3 Application layer gateway . 48
6.4.4 Gateway implemented by a router . 48
6.4.5 Gateway implemented by a bridge . 49
7 On-board data communication . 49
7.1 General . 49
7.2 Communication patterns . 49
7.2.1 Purpose . 49
7.2.2 Definitions . 49
7.2.3 Push pattern . 50
7.2.4 Pull pattern . 51
7.2.5 Subscription pattern . 53
7.3 Addressing . 53
7.3.1 General . 53
7.3.2 Network layer addressing . 53
7.3.3 Application layer addressing . 55
7.4 Availability of data communication . 55
7.5 Data classes . 56
7.5.1 General . 56
7.5.2 Service parameters . 56
7.5.3 TCN data class definition . 58
7.6 Communication profile . 59
7.7 Application Profile . 59
8 Cybersecurity . 60
8.1 General . 60
8.2 System under Consideration (SuC). 60
8.3 Lifecycle . 61
8.3.1 General . 61
8.3.2 Legacy Systems . 61
8.3.3 Protocol Design . 61
8.4 Guidelines . 61
8.4.1 Overview . 61
8.4.2 Network Authentication . 61
8.4.3 Function Authentication . 62
8.4.4 Authorisation . 62
8.4.5 Integrity Protection . 62
8.4.6 On-Board Confidentiality. 62
9/3149/CDV – 4 – IEC CDV 61375-1 © IEC 2024
8.4.7 Network Segmentation. 63
8.4.8 Gateways . 63
8.4.9 Train-Wayside Link Initiation . 63
8.4.10 Train-Wayside Confidentiality . 63
8.4.11 Train-Wayside Integrity Protection . 64
Figure 1 – Architectural Realms . 19
Figure 2 – Train backbone and consist network . 21
Figure 3 – Example of consist with 2 consist networks . 22
Figure 4 – End device connected to the train backbone (example) . 23
Figure 5 – Network segregation options for on-board physical networks . 24
Figure 6 – Communication between train and ground (example) . 26
Figure 7 – Interfaces between consists . 27
Figure 8 – Train backbone bus topology . 27
Figure 9 – Train backbone switched topology (aggregated transmission media) . 28
Figure 10 – Train backbone switched topology (segregated transmission media) . 28
Figure 11 – Wireless train backbone mesh topology .
...
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