IEC 62320-2:2016

Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 2: AIS AtoN Stations - Operational and performance requirements, methods of testing and required test results

IEC 62320-2:2016 specifies the operational and performance requirements, methods of testing and required test results for AIS AtoN Stations compatible with the performance standards adopted by IMO Resolution MSC.74(69), Annex 3, Universal AIS. It incorporates the technical characteristics of non-shipborne AIS AtoN equipment, included in Recommendation ITU-R M.1371 and IALA Recommendation A-126. Where applicable, it also takes into account the ITU Radio Regulations. This standard takes into account other associated IEC International Standards and existing national standards, as applicable. This document is applicable for automatic identification system (AIS) installations on aids to navigation (AtoN). This edition includes the following significant technical changes with respect to the previous edition:
- additional cyber security measures;
- updated description of configuration via VDL;
- updated VDL access scheme requirements;
- new PI sentences and VDL message structures with added description for optional TAG blocks;
- added requirement for at least one standard method for configuration using Standard PI sentences;
- updated test methods and updated Annexes.

Matériels et systèmes de navigation et de radiocommunication maritimes - Système d'identification automatique (AIS) - Partie 2: Stations d'aides à la navigation AIS - Exigences opérationnelles et de fonctionnement, méthodes d'essai et résultats d'essai exigés

L'IEC 62320-2:2016 spécifie les exigences opérationnelles et de fonctionnement, les méthodes d'essai et les résultats d’essai exigés applicables aux stations d'aides à la navigation AIS compatibles avec les normes de fonctionnement adoptées par la Résolution MSC.74(69) de l'OMI (Annexe 3, AIS universel). Elle comprend les caractéristiques techniques des matériels AIS d'aides à la navigation non embarqués, figurant dans la Recommandation UIT-R M.1371 et la Recommandation A-126 de l'AISM. Le cas échéant, elle prend également en compte le Règlement des radiocommunications de l'UIT. La présente norme tient compte des autres normes internationales IEC associées et des normes nationales existantes, selon le cas.
Le présent document s'applique aux installations de systèmes d'identification automatique (AIS - automatic identification system) dédiées aux aides à la navigation (AtoN - aids to navigation).
Cette deuxième édition annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- des mesures de cybersécurité supplémentaires;
- mise à jour de la description de configuration via la VDL;
- mise à jour des exigences concernant les modes d'accès VDL;
- de nouvelles sentences PI et de nouvelles structures de messages VDL avec ajout d'une description des blocs TAG facultatifs;
- ajout d’une exigence concernant au moins une méthode de configuration type à l'aide de sentences PI types;
- mise à jour des méthodes d'essai et des annexes.

General Information

• Status: Published
• Publication Date: 30-Oct-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: TC 80 - Maritime navigation and radiocommunication equipment and systems
• Drafting Committee: WG 15 - TC 80/WG 15
• Current Stage: PPUB - Publication issued
• Start Date: 30-Nov-2016
• Completion Date: 31-Oct-2016

Relations

• Revises: IEC 62320-2:2008 - Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 2: AIS AtoN Stations - Operational and performance requirements, methods of testing and required test results
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62320-2 ®
Edition 2.0 2016-10
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Automatic identification system (AIS) –
Part 2: AIS AtoN Stations – Operational and performance requirements, methods
of testing and required test results
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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IEC 62320-2 ®
Edition 2.0 2016-10
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Automatic identification system (AIS) –

Part 2: AIS AtoN Stations – Operational and performance requirements, methods

of testing and required test results

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-3709-0

– 2 – IEC 62320-2:2016 © IEC 2016
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 11
4 Description . 12
4.1 Types of AIS AtoN stations . 12
4.2 Type 1 AIS AtoN station . 15
4.2.1 Characteristics. 15
4.2.2 Capability . 17
4.2.3 Alternatives . 17
4.3 Type 2 AIS AtoN station . 18
4.3.1 Characteristics. 18
4.3.2 Capability . 18
4.3.3 Control receiver . 18
4.3.4 Alternatives . 18
4.4 Type 3 AIS AtoN Station . 19
4.4.1 Characteristics. 19
4.4.2 Capability . 19
4.4.3 AIS receiver (AIS Rx) . 19
4.4.4 Alternatives . 19
4.5 Optional direct configuration via VDL (types 2 and 3) . 20
4.6 Optional configuration via VDL using chaining (type 3) . 20
5 Requirements for AIS AtoN stations . 23
5.1 Physical layer . 23
5.1.1 Transmitter requirements . 23
5.1.2 Receiver requirements . 25
5.1.3 Power consumption . 26
5.1.4 Environmental requirements . 26
5.2 Link layer . 27
5.2.1 General . 27
5.2.2 AIS Messages . 27
5.2.3 Synchronisation . 27
5.2.4 VDL access schemes. 28
5.2.5 Autonomous mode . 30
5.2.6 Electronic position fix system . 31
5.2.7 Built-in integrity test . 32
5.3 Configuration method . 33
5.3.1 General . 33
5.3.2 Alternative for types 1, 2 and 3 . 33
5.3.3 Chaining of AIS AtoN stations . 36
5.4 Repeat broadcast of active AIS-SART message . 36
5.5 Other requirements . 36
5.5.1 Additional features . 36
5.5.2 Manufacturer’s information . 36

5.5.3 Marking and identification . 37
5.5.4 Additional connection points . 37
6 Tests of AIS AtoN stations . 37
6.1 General . 37
6.2 Test conditions . 37
6.2.1 Normal test conditions . 37
6.2.2 Extreme test conditions . 37
6.2.3 Standard test environment . 38
6.2.4 Test signals . 38
6.2.5 Arrangements for test signals applied to the receiver input . 39
6.2.6 Encoder for receiver measurements . 40
6.2.7 Waiver for receivers . 40
6.2.8 Impedance . 40
6.2.9 Artificial antenna (dummy load) . 40
6.2.10 Facilities for access . 40
6.2.11 Modes of operation of the transmitter. 40
6.2.12 Measurement uncertainties . 40
7 RF tests . 41
7.1 TDMA transmitter . 41
7.1.1 General . 41
7.1.2 Frequency error . 41
7.1.3 Carrier power . 42
7.1.4 Modulation spectrum slotted transmission . 42
7.1.5 Transmitter test sequence and modulation accuracy . 43
7.1.6 Transmitter output power versus time function (FATDMA and RATDMA) . 45
7.2 TDMA receivers (types 2 and 3) . 46
7.2.1 Sensitivity . 46
7.2.2 Error behaviour at high input levels. 47
7.2.3 Co-channel rejection . 47
7.2.4 Adjacent channel selectivity . 48
7.2.5 Spurious response rejection . 49
7.2.6 Inter-modulation response rejection . 52
7.2.7 Blocking or desensitization . 53
7.3 Conducted spurious emissions at the antenna . 54
7.3.1 Spurious emissions from the receiver . 54
7.3.2 Spurious emissions from the transmitter . 54
8 Functional tests . 55
8.1 Configuration method . 55
8.1.1 General . 55
8.1.2 Configuration for Message 21 . 55
8.1.3 Schedule mode A FATDMA Message 21 (single report, alternating
channel operation) . 56
8.1.4 Schedule mode B FATDMA Message 21 (dual report, dual channel
operation) . 57
8.1.5 Schedule mode C FATDMA Message 21 (single report, single channel
operation) . 57
8.1.6 Schedule mode A RATDMA Message 21 (Type 3) (single report,
alternating channel operation) . 58
8.1.7 Schedule mode B RATD
...

IEC 62320-2 ®
Edition 2.0 2016-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Automatic identification system (AIS) –
Part 2: AIS AtoN Stations – Operational and performance requirements, methods
of testing and required test results

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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IEC 62320-2 ®
Edition 2.0 2016-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Automatic identification system (AIS) –

Part 2: AIS AtoN Stations – Operational and performance requirements, methods

of testing and required test results

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-3735-9

– 2 – IEC 62320-2:2016 RLV © IEC 2016
CONTENTS
FOREWORD . 9
1 Scope . 11
2 Normative references . 11
3 Terms, definitions and abbreviations . 12
3.1 Terms and definitions . 12
3.2 Abbreviated terms . 12
4 Description . 13
4.1 Types of AIS AtoN stations . 13
4.2 Type 1 AIS AtoN station . 16
4.2.1 Type 1 AIS AtoN station Characteristics . 16
4.2.2 Capability . 18
4.2.3 Type 1 AIS AtoN station – Alternatives . 18
4.3 Type 2 AIS AtoN station . 19
4.3.1 Type 2 AIS AtoN station Characteristics . 19
4.3.2 Capability . 19
4.3.3 Control receiver . 19
4.3.4 Type 2 AIS AtoN station – Alternatives . 19
4.4 Type 3 AIS AtoN Station . 20
4.4.1 Type 3 AIS AtoN station Characteristics . 20
4.4.2 Type 3 AIS AtoN station Capability . 20
4.4.3 AIS receiver (AIS Rx) . 20
4.4.4 Type 3 AIS AtoN station – Alternatives . 20
4.5 Optional direct configuration via VDL (types 2 and 3) . 21
4.6 Optional configuration via VDL using chaining of AIS AtoN Stations (Types 2
and 3) . 21
5 Requirements for AIS AtoN stations . 25
5.1 Physical layer requirement . 25
5.1.1 Transmitter requirements . 25
5.1.2 Receiver requirements . 26
5.1.3 Power consumption . 27
5.1.4 Environmental requirements . 27
5.2 Link layer requirements . 28
5.2.1 General . 28
5.2.2 AIS Messages . 28
5.2.3 Synchronisation . 29
5.2.4 VDL access schemes. 29
5.2.5 Autonomous mode . 32
5.2.6 Electronic position fix system . 33
5.2.7 Built-in integrity test . 34
5.3 Requirements for the Configuration method . 35
5.3.1 General . 35
5.3.2 Alternative for types 1, 2 and 3 . 35
5.3.3 Chaining of AIS AtoN stations . 38
5.4 Repeat broadcast of active AIS-SART message . 38
5.5 Other requirements . 38
5.5.1 Additional features . 38

5.5.2 Manufacturer’s information . 38
5.5.3 Marking and identification . 39
5.5.4 Additional connection points . 39
6 Tests of AIS AtoN stations – Method of measurement and required results. 39
6.1 General . 39
6.2 Test conditions . 39
6.2.1 Normal test conditions . 39
6.2.2 Extreme test conditions . 39
6.2.3 Standard test environment . 40
6.2.4 Test signals . 40
6.2.5 Arrangements for test signals applied to the receiver input . 42
6.2.6 Encoder for receiver measurements . 42
6.2.7 Waiver for receivers . 42
6.2.8 Impedance . 42
6.2.9 Artificial antenna (dummy load) . 42
6.2.10 Facilities for access . 42
6.2.11 Modes of operation of the transmitter. 42
6.2.12 Measurement uncertainties . 43
7 AIS AtoN Station RF tests . 43
7.1 RF tests (transmitter and receiver) TDMA transmitter . 43
7.1.1 General . 43
7.1.2 Frequency error . 43
7.1.3 Carrier power . 44
7.1.4 Modulation spectrum slotted transmission . 45
7.1.5 Transmitter test sequence and modulation accuracy . 46
7.1.6 Transmitter output power versus time function (FATDMA and RATDMA) . 47
7.2 TDMA receivers (types 2 and 3) . 48
7.2.1 Sensitivity . 48
7.2.2 Error behaviour at high input levels. 49
7.2.3 Co-channel rejection . 50
7.2.4 Adjacent channel selectivity . 51
7.2.5 Spurious response rejection . 52
7.2.6 Inter-modulation response rejection . 54
7.2.7 Blocking or desensitization . 56
7.3 Conducted spurious emissions at the antenna . 57
7.3.1 Spurious emissions from the receiver . 57
7.3.2 Spurious emissions from the transmitter . 57
8 Functional tests . 58
8.1 Tests for Configuration method . 58
8.1.1 General . 58
8.1.2 Configure test Configuration for Message 21 . 58
8.1.3 Schedule mode A FATDMA Message 21 (single report, alternating
channel operation) . 59
8.1.4 Schedule mode B FATDMA Message 21 (dual report, dual channel
operation) . 60
8.1.5 Schedule mode C FATDMA Message 21 (single report, single channel
operation) . 60
8.1.6 Schedule mode A RATDMA Message 21 (Type 3) (single report,
alternating channel operation) . 61

– 4 – IEC 62
...

IEC 62320-2 ®
Edition 2.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Automatic identification system (AIS) –
Part 2: AIS AtoN Stations – Operational and performance requirements, methods
of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –
Système d'identification automatique (AIS) –
Partie 2: Stations d'aides à la navigation AIS – Exigences opérationnelles et de
fonctionnement, méthodes d'essai et résultats d'essai exigés

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
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IEC 62320-2 ®
Edition 2.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Automatic identification system (AIS) –

Part 2: AIS AtoN Stations – Operational and performance requirements,

methods of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –

Système d'identification automatique (AIS) –

Partie 2: Stations d'aides à la navigation AIS – Exigences opérationnelles et de

fonctionnement, méthodes d'essai et résultats d'essai exigés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-5229-1

– 2 – IEC 62320-2:2016 © IEC 2016
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 11
4 Description . 12
4.1 Types of AIS AtoN stations . 12
4.2 Type 1 AIS AtoN station . 15
4.2.1 Characteristics. 15
4.2.2 Capability . 17
4.2.3 Alternatives . 17
4.3 Type 2 AIS AtoN station . 18
4.3.1 Characteristics. 18
4.3.2 Capability . 18
4.3.3 Control receiver . 18
4.3.4 Alternatives . 18
4.4 Type 3 AIS AtoN Station . 19
4.4.1 Characteristics. 19
4.4.2 Capability . 19
4.4.3 AIS receiver (AIS Rx) . 19
4.4.4 Alternatives . 19
4.5 Optional direct configuration via VDL (types 2 and 3) . 20
4.6 Optional configuration via VDL using chaining (type 3) . 20
5 Requirements for AIS AtoN stations . 23
5.1 Physical layer . 23
5.1.1 Transmitter requirements . 23
5.1.2 Receiver requirements . 25
5.1.3 Power consumption . 26
5.1.4 Environmental requirements . 26
5.2 Link layer . 26
5.2.1 General . 26
5.2.2 AIS Messages . 27
5.2.3 Synchronisation . 27
5.2.4 VDL access schemes. 28
5.2.5 Autonomous mode . 30
5.2.6 Electronic position fix system . 31
5.2.7 Built-in integrity test . 32
5.3 Configuration method . 33
5.3.1 General . 33
5.3.2 Alternative for types 1, 2 and 3 . 33
5.3.3 Chaining of AIS AtoN stations . 36
5.4 Repeat broadcast of active AIS-SART message . 36
5.5 Other requirements . 36
5.5.1 Additional features . 36
5.5.2 Manufacturer’s information . 36

5.5.3 Marking and identification . 37
5.5.4 Additional connection points . 37
6 Tests of AIS AtoN stations . 37
6.1 General . 37
6.2 Test conditions . 37
6.2.1 Normal test conditions . 37
6.2.2 Extreme test conditions . 37
6.2.3 Standard test environment . 38
6.2.4 Test signals . 38
6.2.5 Arrangements for test signals applied to the receiver input . 39
6.2.6 Encoder for receiver measurements . 40
6.2.7 Waiver for receivers . 40
6.2.8 Impedance . 40
6.2.9 Artificial antenna (dummy load) . 40
6.2.10 Facilities for access . 40
6.2.11 Modes of operation of the transmitter. 40
6.2.12 Measurement uncertainties .
...