EN ISO 15118-10:2025

SLOVENSKI STANDARD
01-maj-2025
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 10. del:
Zahteve za fizične in podatkovne povezovalne plasti za enoparni Ethernet (ISO
15118-10:2025)
Road vehicles - Vehicle to grid communication interface - Part 10: Physical layer and
data link layer requirements for single-pair Ethernet (ISO 15118-10:2025)
Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -
Teil 10: Anforderungen an die physikalische Schicht und Sicherungsschicht für
Zweidraht Ethernet (ISO 15118-10:2025)
Véhicules routiers - Interface de communication entre véhicule et réseau électrique -
Partie 10: Exigences relatives à la couche physique et à la couche liaison de données
pour Ethernet à paire unique (ISO 15118-10:2025)
Ta slovenski standard je istoveten z: EN ISO 15118-10:2025
ICS:
35.100.05 Večslojne uporabniške Multilayer applications
rešitve
43.040.15 Avtomobilska informatika. Car informatics. On board
Vgrajeni računalniški sistemi computer systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15118-10
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2025
EUROPÄISCHE NORM
ICS 43.120
English Version
Road vehicles - Vehicle to grid communication interface -
Part 10: Physical layer and data link layer requirements
for single-pair Ethernet (ISO 15118-10:2025)
Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle
véhicule et réseau électrique - Partie 10: Exigences zwischen Fahrzeug und Ladestation - Teil 10:
relatives à la couche physique et à la couche liaison de Anforderungen an die physikalische Schicht und
données pour Ethernet à paire unique (ISO 15118- Sicherungsschicht für Zweidraht Ethernet (ISO 15118-
10:2025) 10:2025)
This European Standard was approved by CEN on 5 March 2025.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15118-10:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 15118-10:2025) has been prepared by Technical Committee ISO/TC 22 "Road
vehicles" in collaboration with Technical Committee CEN/TC 301 “Road vehicles” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2025, and conflicting national standards
shall be withdrawn at the latest by September 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 15118-10:2025 has been approved by CEN as EN ISO 15118-10:2025 without any
modification.
International
Standard
ISO 15118-10
First edition
Road vehicles — Vehicle to grid
2025-03
communication interface —
Part 10:
Physical layer and data link layer
requirements for single-pair
Ethernet
Véhicules routiers — Interface de communication entre véhicule
et réseau électrique —
Partie 10: Exigences relatives à la couche physique et à la couche
liaison de données pour Ethernet à paire unique
Reference number
ISO 15118-10:2025(en) © ISO 2025

ISO 15118-10:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 15118-10:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Conventions . 3
5.1 Definition of OSI based services .3
5.2 Requirement structure .3
6 System architecture . 3
6.1 Communication layers .3
6.1.1 Architecture .3
6.1.2 Layer 2 interfaces .4
6.1.3 Communication media .4
6.1.4 Data SAP .4
6.1.5 Service primitive concept of OSI layered architecture .6
6.2 Physical channel .6
6.2.1 General .6
6.2.2 Nodes .7
6.2.3 Requirements for the physical channel.7
6.2.4 Schematic of the coupling network .7
6.3 System requirements .8
6.3.1 Overview of basic signalling .8
6.3.2 Electric vehicle supply equipment (EVSE) .9
6.3.3 Electric vehicle (EV) . .9
7 Connection coordination . 10
7.1 General .10
7.2 Overview .10
7.3 Plug-in phase .10
7.3.1 General .10
7.3.2 EVSE side .10
7.3.3 EV side .10
7.4 Initialization phase .10
7.5 Loss of communication .10
7.5.1 General .10
7.5.2 EVSE side .11
7.5.3 EV side .11
7.6 Sleep mode and wake-up .11
7.6.1 General .11
7.6.2 Entering sleep mode .11
7.6.3 Wake-up .11
7.7 During a charge pause . 12
8 Timing and constants .12
9 EV-EVSE communication initialization .13
9.1 Overview . 13
9.2 Errors . 13
10 EMC requirements .13
Bibliography . 14

iii
ISO 15118-10:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, SC 31, Data communication,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 301,
Road vehicles, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
A list of all parts in the ISO 15118 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found atwww.iso.org/members.html.

iv
ISO 15118-10:2025(en)
Introduction
The looming energy crisis and necessity to reduce greenhouse gas emissions has forced vehicle
manufacturers to find ways to scale down how much energy their vehicles consume. The vehicles they are
currently developing are propelled either entirely or in part by electric energy. If this energy is generated
from renewable sources, this will weaken dependency on oil, improve the global energy efficiency and cut
CO emissions. However, a dedicated charging infrastructure is needed to charge the batteries that power
these vehicles.
Much of the standardization work on dimensional and electrical specifications of the charging infrastructure
and the vehicle interface is already treated in the relevant ISO or IEC groups. However, the question of
information transfer between the electric vehicles (EV) and electric vehicle supply equipment (EVSE) has
not been treated sufficiently.
This communication is key to optimizing energy resources and energy production systems so vehicles can
be charged cheaply and efficiently.
In this document, messages are exchanged between the vehicle and the infrastructure over single-pair
Ethernet (which is embedded in the cable assembly).
The relevant information on use-case definitions requirements can be found in ISO 15118-1. Network and
application protocol requirements can be found in ISO 15118-20, respectively.

v
International Standard ISO 15118-10:2025(en)
Road vehicles — Vehicle to grid communication interface —
Part 10:
Physical layer and data link layer requirements for single-
pair Ethernet
1 Scope
This document specifies the physical and data link layer of high-level communication (HLC) between electric
vehicles (EV) and electric vehicle supply equipment (EVSE) based on single-pair Ethernet communication.
Single-pair Ethernet communication uses differential twisted pair wires that are dedicated and balanced.
This document applies to 10BASE-T1S only.
This document covers the overall information exchange between all actors involved in electrical energy
exchange. The ISO 15118 series applies to charging between EV and EVSE.
2 Normative references
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.
ISO 15118-20:2022, Road vehicles — Vehicle to grid communication interface — Part 20: 2nd generation
network layer and application layer requirements
1)
IEC 61851-23-3 , Electric vehicle conductive charging system — Part 23-3: DC electric vehicle supply equipment
for Megawatt charging systems
IEEE 802.3:2022, IEEE Standard for Ethernet
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15118-20 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
basic signalling
analogue communication signal loop between the electric vehicle (EV) and the electric vehicle supply
equipment (EVSE) to ensure reliable hardware-based information exchange during energy transfer
Note 1 to entry: The basic communication interface is defined in IEC 61851-23–3.
1) Under preparation. Stage at the time of publication: IEC/CCDV 61851-23-3:2025.

ISO 15118-10:2025(en)
3.2
charge enable function
electronic function using an analogue signal loop between the electric vehicle (EV) and the electric vehicle
supply equipment (EVSE) to ensure safety during energy transfer and to transmit information about the
operational modes of EV and EVSE, in conformity with IEC 61851-23-3
3.3
communication media
physical media carrying the low-layer communication (3.7) signal is given by the cable assembly, which
connects the charging
...