SIST EN IEC 61375-2-6:2019
(Main)Electronic railway equipment - Train communication network - Part 2-6: On-board to ground communication
Electronic railway equipment - Train communication network - Part 2-6: On-board to ground communication
This part of IEC 61375 establishes the specification for the communication between the onboard
subsystems and the ground subsystems.
The communication system, interfaces and protocols are specified as a mobile communication
function, using any available wireless technology.
This document provides requirements in order to:
a) select the wireless network on the basis of QoS parameters requested by the application;
b) allow TCMS and/or OMTS applications, installed on-board and communicating on the onboard
communication network, to have a remote access to applications running on ground
installations;
c) allow applications running on ground installations to have a remote access to the TCMS
and/or OMTS applications installed on-board.
This document specifies further requirements which allow the applications running on-board
and the applications running on ground to connect each other applying the virtual/functional
addressing mechanism specified by IEC 61375-2-3 and exchanging application data sets
produced or consumed by the on-board functions implemented in the devices attached to the
TCN network.
Furthermore, this document covers the security requirements in order to grant the access only
to authenticated and authorised applications and to allow encryption of exchanged data.
The communication of safety related data between on-board applications and ground
applications are out of the scope of this International Standard as well as Internet connectivity
service for passengers.
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk (TCN) - Teil 2-6: Kommunikation vom Zug zur Landseite
Matériel électronique ferroviaire - Réseau embarqué de train (TCN) - Partie 2-6: Communication train-sol
L'IEC 61375-2-6:2018 couvre la spécification pour la communication entre les sous-systèmes embarqués et les sous-systèmes au sol. Le système, les interfaces et les protocoles de communication sont spécifiés comme une fonction de communication mobile, utilisant toute technologie radio disponible. Le présent document spécifie des exigences pour:
a) sélectionner le réseau radio sur la base des paramètres de Qualité de Service (QoS) requis par l'application;
b) permettre aux applications du système de contrôle et de gestion de train (TCMS) et/ou du sous-système multimédia et télématique embarqué (OMTS), installées à bord du train et communiquant sur le réseau de communication embarqué, d'avoir un accès à distance aux applications s'exécutant au sol;
c) permettre aux applications s'exécutant au sol d'avoir un accès à distance aux applications TCMS et/ou OMTS embarquées.
Železniške elektronske naprave - Komunikacijsko omrežje vlaka - 2-6. del: Komunikacija vlak-tla
Ta del IEC 61375 določa specifikacije za komunikacijo med podsistemi na krovu in podsistemi na tleh.
Komunikacijski sistem, vmesniki in protokoli so določeni kot funkcija mobilne komunikacije z uporabo katere koli razpoložljive brezžične tehnologije.
Ta dokument vsebuje zahteve, potrebne za:
a) izbiro brezžičnega omrežja na podlagi parametrov QoS, ki jih zahteva aplikacija;
b) to, da imajo aplikacije TCMS in/ali OMTS, ki so nameščene na krovu in komunicirajo v komunikacijskem omrežju na krovu, oddaljeni dostop do aplikacij, ki delujejo v sistemih na tleh;
c) to, da imajo aplikacije, ki delujejo v sistemih na tleh, oddaljeni dostop do aplikacij TCMS in/ali OMTS, nameščenih na krovu.
Ta dokument določa dodatne zahteve, ki omogočajo, da se aplikacije, ki se izvajajo na krovu, in aplikacije, ki delujejo na tleh, povezujejo med seboj prek navideznega/funkcionalnega mehanizma za naslavljanje, ki ga določa IEC 61375-2-3, ter izmenjujejo nabore podatkov aplikacij, ki jih proizvajajo ali porabljajo funkcije na krovu nameščenih naprav, povezanih z omrežjem TCN.
Poleg tega ta dokument zajema varnostne zahteve, ki omogočajo dostop samo overjenim in pooblaščenim aplikacijam ter omogočajo šifriranje izmenjanih podatkov.
Komunikacija podatkov, povezanih z varnostjo, med aplikacijami na krovu in aplikacijami na tleh ter storitev internetne povezave za potnike ne spadata na področje uporabe tega mednarodnega standarda.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 61375-2-6:2019
01-september-2019
Železniške elektronske naprave - Komunikacijsko omrežje vlaka - 2-6. del:
Komunikacija vlak-tla
Electronic railway equipment - Train communication network - Part 2-6: On-board to
ground communication
Ta slovenski standard je istoveten z: EN IEC 61375-2-6:2018
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN IEC 61375-2-6:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 61375-2-6:2019
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SIST EN IEC 61375-2-6:2019
EUROPEAN STANDARD EN IEC 61375-2-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2018
ICS 45.060.01
English Version
Electronic railway equipment - Train communication network
(TCN) - Part 2-6: On-board to ground communication
(IEC 61375-2-6:2018)
Matériel électronique ferroviaire - Réseau embarqué de Elektronische Betriebsmittel für Bahnen - Zug-
train (TCN) - Partie 2-6: Communication train-sol Kommunikations-Netzwerk (TCN) - Teil 2-6: Kommunikation
(IEC 61375-2-6:2018) vom Zug zur Landseite
(IEC 61375-2-6:2018)
This European Standard was approved by CENELEC on 2018-06-18. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61375-2-6:2018 E
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SIST EN IEC 61375-2-6:2019
EN IEC 61375-2-6:2018 (E)
European foreword
The text of document 9/2374/FDIS, future edition 1 of IEC 61375-2-6, prepared by IEC/TC 9 "Electrical
equipment and systems for railways" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN IEC 61375-2-6:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-05-16
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-11-16
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 61375-2-6:2018 was approved by CENELEC as a
European Standard without any modification.
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SIST EN IEC 61375-2-6:2019
EN IEC 61375-2-6:2018 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61375-1 2012 Electronic railway equipment - Train EN 61375-1 2012
communication network (TCN) - Part 1:
General architecture
IEC 61375-2-3 2015 Electronic railway equipment - Train EN 61375-2-3 2015
communication network (TCN) - Part 2-3:
TCN communication profile
- - + A11 2017
IEC 61375-3-4 - Electronic railway equipment - Train EN 61375-3-4 2014
communication network (TCN) - Part 3-4:
Ethernet Consist Network (ECN)
+A11 2017
IEC 62280 2014* Railway applications - Communication, - -
signalling and processing systems - Safety
related communication in transmission
systems
IEC 62443 series Industrial communication networks - EN 62443 series
Network and system security - Part 2-1:
Establishing an industrial automation and
control system security program
IEC 62443-3-3 2013* Industrial communication networks - - -
Network and system security - Part 3-3:
System security requirements and security
levels
IEC 62580-1 - Electronic railway equipment - On-board EN 62580-1 2016
multimedia and telematic subsystems for
railways - Part 1: General architecture
+A11 2017
* Dated as no equivalent European Standard exists
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EN IEC 61375-2-6:2018 (E)
ISO/IEC 20922 2016 Information technology - Message Queuing - -
Telemetry Transport (MQTT) v3.1.1
IEEE 802.3 2015* IEEE Standard for Information technology - - -
Specific requirements - Part 3: Carrier
Sense Multiple Access with Collision
Detection (CMSA/CD) Access Method and
Physical Layer Specifications
IEEE 802.11 2016 IEEE Standard for Information technology - - -
Telecommunications and information
exchange between systems Local and
metropolitan area networks - Specific
requirements - Part 11: Wireless LAN
Medium Access Control (MAC) and
Physical Layer (PHY) Specifications
IEEE 802.1X 2010 IEEE Standard for Local and metropolitan - -
area networks - Port-Based Network
Access Control
RFC 2136 1997* Dynamic Updates in the Domain Name - -
System (DNS UPDATE)
RFC 2616 1999* Hypertext Transfer Protocol -- HTTP/1.1 - -
RFC 2818 2000* HTTP Over TLS - -
RFC 3986 2005* Uniform Resource Identifier (URI): Generic - -
Syntax
RFC 4627 2006* The application/json Media Type for - -
JavaScript Object Notation (JSON)
RFC 7159 2014* The JavaScript Object Notation (JSON) - -
Data Interchange Format
* Dated as no equivalent European Standard exists
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EN IEC 61375-2-6:2018 (E)
Annex ZZ
(informative)
Relationship between this European standard and the essential requirements
of EU Directive 2016/797/EU [2016 OJ L138] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request relating to
harmonized standards in the field of the Interoperability of the rail system within the European Union,
M/483, to provide one voluntary means of conforming to essential requirements of Directive
2016/797/EU of the European Parliament and of the Council of 11 May 2016 on the harmonization of
the laws of the Member States relating to the interoperability of the rail system within the European
Union [2016 OJ L138/44].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 for “Locomotives and
Passenger Rolling Stock”, Table ZZ.2 for “Energy”, Table ZZ.3 for “Telematics Applications for
Passenger Services”, confers, within the limits of the scope of this standard, a presumption of
conformity with the corresponding essential requirements of that Directive, and associated EFTA
regulations.
Table ZZ.1 - Correspondence between this European Standard, the TSI “Locomotives and
Passenger Rolling Stock” (REGULATION (EU) No 1302/2014 of 18 November 2014) and
Directive 2016/797/EU [2016 OJ L138]
Essential Chapter / § / points / Clause(s) / sub- Remarks / Notes
Requirements of of LOC & PAS TSI clause(s) of this EN
Directive 2016/797/EU
Clause 4 The TSI does not
1.5 Technical 4.2.8.2.8 On-board Clause 5 impose any technical
compatibility energy measurement Clause 6 solution regarding
2. Requirements system physical interfaces
specific to each 4.2.12.2 General between units.
subsubsystem documentation: - Annex A
2.4. Rolling Stock description of Annex B This standard offers a
2.4.2. Reliability and computerised on board general multi-purpose
availability systems solution for the digital
2.4.3. Technical Appendix D - On-board communication
compatibility energy measurement between on-board
system networked applications
and ground
applications, so it is
relevant to equipment
and train
interoperability.
This standard closes
an Open Point in the
TSI
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EN IEC 61375-2-6:2018 (E)
Table ZZ.2 - Correspondence between this European Standard, the TSI “Energy”
(REGULATION (EU) No 1301/2014 of 18 November 2014) and Directive 2016/797/EU [2016 OJ
L138]
Essential Chapter / § / points / Clause(s) / sub- Remarks / Notes
Requirements of of ENE TSI clause(s) of this EN
Directive 2016/797/EU
1.5 Technical 4.2.17. On-ground Clause 4 This standard closes
compatibility energy data collecting an Open Point in the
Clause 5
system TSI
Clause 7
Annex A
Annex B
Table ZZ.3 - Correspondence between this European Standard, the TSI “Telematics
Applications for Passenger Services” (published in the Official Journal L 123 on 12 May 2011,
p. 11) and Directive 2016/797/EU [2016 OJ L138]
Essential Chapter / § / points / Clause(s) / sub- Remarks / Notes
Requirements of of ENE TSI clause(s) of this EN
Directive 2016/797/EU
1.2 Reliability and 4.2.21. Networking and Clause 4 The solution specified
availability communication in this standard can be
Clause 5
part of the general
2. Requirements 4.2.21.1. General
Clause 6 Information Exchange
specific to each architecture
Architecture
subsubsystem
Clause 7
2.7. Telematics Annex A
applications for freight
and passengers
2.7.1. Technical
compatibility
2.7.2. Reliability and
availability
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
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SIST EN IEC 61375-2-6:2019
IEC 61375-2-6
®
Edition 1.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electronic railway equipment – Train communication network (TCN) –
Part 2-6: On-board to ground communication
Matériel électronique ferroviaire – Réseau embarqué de train (TCN) –
Partie 2-6: Communication train-sol
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060.01 ISBN 978-2-8322-5611-4
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 61375-2-6:2019
– 2 – IEC 61375-2-6:2018 © IEC 2018
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 11
2 Normative references . 11
3 Terms, definitions, symbols, abbreviated terms and conventions . 12
3.1 Terms and definitions . 12
3.2 Symbols and abbreviated terms . 19
3.3 State diagram conventions . 21
4 Board to Ground Communication system architecture . 21
4.1 General . 21
4.2 Requirements . 21
4.3 Mobile communication network architecture . 23
4.3.1 General . 23
4.3.2 On-board network interface . 23
4.4 System breakdown structure . 24
4.4.1 General . 24
4.4.2 System breakdown structure at board-to-ground system level . 25
4.4.3 System breakdown structure at MCG sub-system level . 25
4.4.4 System breakdown structure at GCG sub-system level . 25
4.5 Functional breakdown structure . 25
4.6 Mobile Communication Gateway . 26
4.6.1 Architecture . 26
4.6.2 Mobile communication gateway . 28
4.7 Mobile communication redundancy . 30
4.7.1 General . 30
4.7.2 Full performance redundancy . 31
4.7.3 Reduced performance redundancy . 31
4.8 Train composition changes . 31
4.9 Security . 32
4.9.1 Security zones . 32
4.9.2 Security measures . 33
4.9.3 Authentication authorization accounting model . 35
4.9.4 Network and MCG classification . 37
5 Communication framework . 39
5.1 General . 39
5.2 MCG broker service architecture . 39
5.3 Addressing concept . 40
5.3.1 Use cases. 40
5.3.2 Consist and train Identification . 41
5.3.3 T2G Network Borders . 41
5.3.4 T2G basic minimum network . 41
5.3.5 T2G addressing . 42
5.3.6 HTTP-URI . 44
5.4 Data classes for T2G communication . 45
5.4.1 General . 45
5.4.2 Communication channel establishment . 45
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5.4.3 Message data . 45
5.4.4 Process data . 46
5.4.5 Stream Data . 47
5.4.6 Best effort data . 47
5.5 Communication protocol. 48
5.5.1 General . 48
5.5.2 HTTP(S) . 48
5.5.3 MQTT (Option) . 50
5.6 Communication services . 51
5.6.1 General . 51
5.6.2 Message data communication service . 51
5.6.3 File transfer communication service . 55
6 Services and interfaces (MCG) . 76
6.1 Overview. 76
6.1.1 MCG system service architecture . 76
6.1.2 MCG / GCG system service interfaces . 77
6.1.3 MCG / GCG communication relationship . 78
6.2 Service provisioning . 78
6.3 MCG / GCG system service description . 79
6.3.1 Communication Services . 79
6.3.2 Train Location Service (Option) . 82
6.3.3 Train Information Service . 88
6.3.4 MCG Network Selector Service . 92
6.3.5 Train telemetry service (Option) . 94
6.3.6 MCG Train Wake-up Service (Option) . 104
7 Services and interfaces (GCG) . 105
7.1 GCG Overview . 105
7.2 GCG Addressing . 107
7.2.1 Wireless MCG Interface . 107
7.2.2 Ground GCG Interface . 107
7.3 GCG Implementation . 108
7.3.1 General (informative) . 108
7.3.2 GCG Availability . 108
7.3.3 GCG Workload . 108
7.3.4 GCG Security . 108
7.4 GCG services . 108
7.4.1 GCG services protocol . 108
7.4.2 GCG Fleet Database . 108
7.4.3 MCG-GCG services . 109
7.4.4 File transfer communication service . 109
7.4.5 Local Ground GCG Interface. 109
7.4.6 Home GCG – Foreign GCG services . 110
7.4.7 Public Ground GCG services . 110
Annex A (normative) Message presentation . 111
A.1 General . 111
A.2 Transmission rules . 111
A.3 Generic message . 111
Annex B (normative) Telemetry data coding and ordering . 112
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B.1 General . 112
B.2 MQTT payload coding . 112
B.3 Variables grouping and ordering criterion . 113
Bibliography . 116
Figure 1 – Train on-board communication system (example) . 23
Figure 2 – Ground communication system (example) . 24
Figure 3 – Option 1: End device board to ground communication via MCG . 27
Figure 4 – Option 2: End Device board to ground communication via dedicated
interface . 28
Figure 5 – MCG abstract model block diagram . 29
Figure 6 – MCG configured as ALG . 29
Figure 7 – Architectural example of redundant Board to Ground communication . 30
Figure 8 – Security zones (simplified) . 33
Figure 9 – Authentication, authorization and accounting model . 36
Figure 10 – MCG connecting open and closed transmission systems . 38
Figure 11 – MCG broker service architecture . 40
Figure 12 – Minimum Train to Ground Network Setup . 41
Figure 13 – A train consisting of four vehicles . 42
Figure 14 – Communication stacks . 49
Figure 15 – HTTP(S) MD communication pattern . 49
Figure 16 – HTTP(S) request/event. 50
Figure 17 – HTTP(S) response . 50
Figure 18 – Message Data exchange (example) . 52
Figure 19 – Message Data telegram structure . 53
Figure 20 – File upload example . 56
Figure 21 – Error case: No ComID 203 received . 61
Figure 22 – Error case: no ComID 206 received, no file uploaded to the wayside . 62
Figure 23 – Error Case: No ComID 206 received, file uploaded to the wayside . 63
Figure 24 – Error Case: No ComID 207 received . 64
Figure 25 – File download example . 65
Figure 26 – Error case: no ComID 209 received . 71
Figure 27 – Error case: no ComID 211 received . 72
Figure 28 – Error case: no ComID 210 received . 73
Figure 29 – Service architecture . 77
Figure 30 – Service interfaces . 78
Figure 31 – Procedure to establish the radio link from MCG . 80
Figure 32 – Procedure to establish the radio link from GCG . 80
Figure 33 – Procedure to update the ground DNS server . 81
Figure 34 – Example architecture to provide the train location . 83
Figure 35 – Example procedure to notify about current train location . 84
Figure 36 – Example architecture to notify about train information . 88
Figure 37 – Example procedure to notify about train information . 89
Figure 38 – Illustration of network selector . 93
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Figure 39 – Architecture to provide telemetry data . 94
Figure 40 – Procedure to notify about current train location . 95
Figure 41 – Example Procedure to wake up the train . 104
Figure 42 – Train to Ground interfaces . 106
Figure B.1
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