EN 61375-2-5:2015

SLOVENSKI STANDARD
01-maj-2015
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Electronic railway equipment - Train backbone - Part 2-5: Ethernet Train Backbone
Elektronische Betriebsmittel für Bahnen - Zug-Kommunikations-Netzwerk - Teil 2-5: ETB
- Ethernet Train Backbone
Matériel électronique ferroviaire - Réseau de train - Partie 2-5: Réseau de Train Ethernet
Ta slovenski standard je istoveten z: EN 61375-2-5:2015
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.

EUROPEAN STANDARD EN 61375-2-5

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2015
ICS 45.060
English Version
Electronic railway equipment - Train communication network
(TCN) - Part 2-5: Ethernet train backbone
(IEC 61375-2-5:2014)
Matériel électronique ferroviaire - Réseau embarqué de Elektronische Betriebsmittel für Bahnen - Zug-
train (TCN) - Partie 2-5: Réseau central de train Ethernet Kommunikations-Netzwerk - Teil 2-5: ETB - Ethernet Train
(IEC 61375-2-5:2014) Backbone
(IEC 61375-2-5:2014)
This European Standard was approved by CENELEC on 2014-09-29. 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61375-2-5:2015 E
Foreword
The text of document 9/1933/FDIS, future edition 1 of IEC 61375-2-5, 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 61375-2-5:2015.
The following dates are fixed:
(dop) 2015-08-27
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-09-29
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61375-2-5:2014 was approved by CENELEC as a European
Standard without any modification.
IEC 61375-2-1:2012 NOTE  Harmonized as EN 61375-2-1:2012.
IEC 61784-2 NOTE  Harmonized as EN 61784-2.
IEC 61918 NOTE  Harmonized as EN 61918.

- 3 - EN 61375-2-5:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 61076-2-101 2012 Connectors for electronic equipment - EN 61076-2-101 2012
Product requirements -- Part 2-101: Circular
connectors - Detail specification for M12
connectors with screw-locking
IEC 61156 series Multicore and symmetrical pair/quad cables - series
for digital communications
IEC 61156-1 2007 Multicore and symmetrical pair/quad cables - -
for digital communications - Part 1: Generic
specification
IEC 61156-5 -  Multicore and symmetrical pair/quad cables - -
for digital communications - Part 5:
Symmetrical pair/quad cables with
transmission characteristics up to 1 000
MHz - Horizontal floor wiring - Sectional
specification
IEC 61375-1 2012 Electronic railway equipment - Train EN 61375-1 2012
communication network (TCN) -- Part 1:
General architecture
IEC 61375-2-3 -  Electronic railway equipment - Train FprEN 61375-2-3 -
Communication Network (TCN) - Part 2-3:
TCN communication profile
IEC 61375-3-4 -  Electronic railway equipment - Train Bus - EN 61375-3-4 -
Part 3-4: ECN - Ethernet Consist Network
IEC 62236-3-2 -  Railway applications - Electromagnetic - -
compatibility -- Part 3-2: Rolling stock -
Apparatus
ISO/IEC 7498 series Information processing systems - Open - series
systems interconnection - Basic reference
model
ISO/IEC 8824 series Information technology - Abstract Syntax - series
Notation One (ASN.1)
ISO/IEC 9646 series Information technology - Open Systems EN ISO/IEC 9646 series
Interconnection
ISO/IEC 11801 2002 Information technology - Generic cabling for - -
customer premises
IEEE 802.1AB -  IEEE Standard for Local and Metropolitan - -
Area Networks - Station and Media Access
Control Connectivity Discovery
IEEE 802.1AX 2008 IEEE Standard for Local and metropolitan - -
area networks - Link Aggregation

IEEE 802.1D 2012 IEEE Standard for local and metropolitan - -
area networks - Media Access Control
(MAC) Bridges
IEEE 802.1Q -  IEEE Standard for Local and metropolitan - -
area networks - Media Access Control
(MAC) Bridges and Virtual Bridges
IEEE 802.2 -  IEEE Standard for Information technology - - -
Telecommunications and information
exchange between systems - Local and
metropolitan area networks - Specific
requirements - Part 2: Logical Link Control
IEEE 802.3 2012 IEEE Standard for Ethernet - -

- 5 - EN 61375-2-5:2015
Annex ZZ
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2008/57/EC

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essential requirements as given in Annex lll of the EC Directive 2008/57/EC (also named as
New Approach Directive 2008/57/EC Rail Systems: Interoperability).

Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the
clauses of this standard given in Table ZZ.1 relating to the ‘rolling stock - locomotives and
passenger rolling stock’ subsystem of the rail system in the European Union, 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 RST LOC&PAS TSI
(published in the Official Journal L 356 on 12 December 2014, p. 228) and Directive
2008/57/EC
Clauses of this Chapter / § / points / Essential Comments
European Standard of RST LOC&PAS TSI Requirements (ER) of
Directive 2008/57/EC
2. Requirements specific
4.2.4.9 Brake state and
to each sub-subsystem
fault indication
2.4. Rolling Stock
The TSI does not impose
4.2.5.2 Audible 2.4.1. Safety
any technical solution
communication system
regarding physical
2.4.2. Reliability
interfaces between units.
and availability
4.2.5.3 Passenger alarm
2.4.3. Technical
The whole standard is The standard offers a
4.2.5.4 Communication
compatibility
applicable
general multi-purpose
devices for passengers
solution for the inter-
4.2.5.5 Exterior doors
vehicle digital
communication network
4.2.12.2 General
and it is relevant to
documentation: -
vehicle interoperability.
description of
computerised onboard
systems
WARNING: Other requirements and other EU Directives may be applicable to the products

falling within the scope of this standard.

IEC 61375-2-5 ®
Edition 1.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electronic railway equipment – Train communication network (TCN) –

Part 2-5: Ethernet train backbone

Matériel électronique ferroviaire – Réseau embarqué de train (TCN) –

Partie 2-5: Réseau central de train Ethernet

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XF
CODE PRIX
ICS 45.060 ISBN 978-2-8322-1772-6

– 2 – IEC 61375-2-5:2014 © IEC 2014
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references. 10
3 Terms, definitions, symbols, abbreviations and conventions . 11
3.1 Terms and definitions . 11
3.2 Symbols and abbreviations . 15
3.3 Conventions . 17
3.3.1 Base of numeric values . 17
3.3.2 Naming conventions . 17
3.3.3 State diagram conventions . 17
3.3.4 Annotation of data structures . 17
4 ETB physical layer . 17
4.1 Train regions . 17
4.2 Physical characteristics . 18
4.2.1 General . 18
4.2.2 Intra car physical layer . 18
4.2.3 Inter car physical layer . 20
4.2.4 Inter Consist physical layer . 24
4.3 Power over Ethernet (PoE) . 27
4.4 ETB physical architecture and redundancy. 29
4.4.1 General . 29
4.4.2 Link aggregation architecture . 29
4.4.3 Functions . 31
5 ETB data link layer . 32
6 ETB network layer: IPv4 subnets definition . 33
6.1 General . 33
6.2 IP mapping introduction . 34
6.3 Topology . 34
6.3.1 General . 34
6.3.2 Closed train . 35
6.4 Network IP address map . 36
6.4.1 Global IPv4 address space .
...