IEC 61162-450:2018

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection

IEC 61162-450:2018 specifies interface requirements and methods of test for high speed communication between shipboard navigation and radiocommunication equipment as well as between such systems and other ship systems that need to communicate with navigation and radio-communication equipment. This document is based on the application of an appropriate suite of existing international standards to provide a framework for implementing data transfer between devices on a shipboard Ethernet network. This document specifies an Ethernet based bus type network where any listener can receive messages from any sender with the following properties.
- This document includes provisions for multicast distribution of information formatted according to IEC 61162-1, for example position fixes and other measurements, as well as provisions for transmission of general data blocks (binary file), for example between radar and VDR, and also includes provisions for multicast distribution of information formatted according to IEC 61162-3, for example position fixes and other measurements.
- This document is limited to protocols for equipment (network nodes) connected to a single Ethernet network consisting only of OSI level one or two devices and cables (Network infrastructure).
- This document provides requirements only for equipment interfaces. By specifying protocols for transmission of IEC 61162-1 sentences, IEC 61162-3 PGN messages and general binary file data, these requirements will guarantee interoperability between equipment implementing this document as well as a certain level of safe behaviour of the equipment itself.
- This document permits equipment using other protocols than those specified in this document to share a network infrastructure, provided that it is supplied with interfaces which satisfy the requirements described for ONF.
- This document includes provisions for filtering of the network traffic in order to limit the amount of traffic to manageable level for each individual equipment.
This document does not contain any system requirements other than the ones that can be inferred from the sum of individual equipment requirements. An associated standard, IEC 61162-460, further addresses system requirements.
This second edition of IEC 61162-450 cancels and replaces the first edition published in 2011 and Amendment 1:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) network traffic filtering based on IGMP snooping added;
b) network traffic balancing added;
c) new encapsulation of IEC 61162-3 PGNs added;
d) new alternative for binary file transfer added: TCP/IP based on Annex H of IEC 62388:2007 on radars;
e) general authentication tag "a:" added to support managing of cyber security risk.

Matériels et systèmes de navigation et de radiocommunication maritimes - Interfaces numériques - Partie 450: Émetteurs multiples et récepteurs multiples - Interconnexion Ethernet

L'IEC 61162-450:2018 spécifie les exigences d'interface et les méthodes d'essai de la communication à grande vitesse entre les matériels de navigation et de radiocommunication embarqués, et entre ce type de systèmes et d'autres systèmes de navigation qui nécessitent de communiquer avec les matériels de navigation et de radiocommunication. Le présent document repose sur l'application d'une série appropriée de normes internationales existantes visant à définir le cadre de mise en œuvre du transfert de données entre les dispositifs sur un réseau Ethernet embarqué.
Le présent document spécifie un réseau de type bus Ethernet dans lequel un récepteur peut recevoir des messages d'un émetteur avec les propriétés suivantes.
- Le présent document comporte les dispositions en matière de distribution multidiffusion des informations mises en forme selon l'IEC 61162-1 (relevés de position et autres mesurages, par exemple) et en matière de transmission de blocs de données générales (fichier binaire) entre un radar et un VDR, par exemple. Enfin, il contient les dispositions relatives à la distribution multidiffusion des informations mises en forme selon l'IEC 61162-3 (relevés de position et autres mesurages, par exemple).
- Le présent document se limite aux protocoles pour les matériels (nœuds de réseau) connectés à un seul réseau Ethernet composé uniquement d'un ou de deux dispositifs et câbles de niveau OSI (Infrastructure de réseau).
- Le présent document fournit les exigences relatives aux interfaces de matériel uniquement. En spécifiant les protocoles de transmission des sentences IEC 61162-1, des messages PGN IEC 61162-3 et des données générales de fichier binaire, ces exigences assurent l'interopérabilité entre le matériel mettant en œuvre le présent document, ainsi qu'un certain niveau de comportement sûr du matériel lui-même.
- Le présent document permet au matériel utilisant d'autres protocoles que ceux qu'il spécifie de partager une infrastructure de réseau comportant des interfaces satisfaisant aux exigences décrites pour l'ONF.
- Le présent document comporte les dispositions en matière de filtrage du trafic réseau afin de limiter la quantité de trafic à un niveau que chaque matériel individuel peut gérer.
Le présent document ne comporte aucune exigence système autre que celles qui peuvent être déduites de la somme des exigences du matériel seul. La norme connexe IEC 61162-460 aborde les exigences système.
Cette deuxième édition de l'IEC 61162-450 annule et remplace la première édition parue en 2011 et l'Amendement 1:2016. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le filtrage du trafic réseau est admis selon la surveillance du trafic IGMP, et les nœuds doivent mettre en œuvre IGMP;
b) l'équilibrage de trafic réseau est admis;
c) ajout d'une nouvelle encapsulation des PGN de l'IEC 61162-3;
d) ajout d'une nouvelle alternative pour le transfert de fichiers binaires: TCP/IP reposant sur l'Annexe H de l'IEC 62388:2007 sur les radars;
e) ajout de la balise d'authentification générale "a:" pour prendre en charge la gestion des risques de cybersécurité.

General Information

• Status: Published
• Publication Date: 03-May-2018
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: TC 80 - Maritime navigation and radiocommunication equipment and systems
• Drafting Committee: WG 6 - TC 80/WG 6

Relations

• Revises: IEC 61162-450:2011 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection
• Effective Date: 05-Sep-2023
• Revises: IEC 61162-450:2011/AMD1:2016 - Amendment 1 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection
• Effective Date: 05-Sep-2023
• Revised: IEC 61162-450:2024 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet interconnection
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61162-450 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

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 [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
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
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latest edition, a corrigenda or an amendment might have been published.

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IEC 61162-450 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
Maritime navigation and radiocommunication equipment and systems – Digital

interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-5636-7

– 2 – IEC 61162-450:2018 © IEC 2018

CONTENTS
FOREWORD . 7

1 Scope . 9

2 Normative references . 9

3 Terms and definitions . 10

4 General network and equipment requirements . 14

4.1 Network topology example . 14

4.2 Basic requirements . 15
4.2.1 Requirements for equipment to be connected to the network . 15
4.2.2 Additional requirements for network infrastructure equipment . 16
4.3 Network function (NF) requirements . 16
4.3.1 General requirements . 16
4.3.2 Maximum data rate requirements . 16
4.3.3 Error logging function . 17
4.3.4 Provisions for network traffic filtering – IGMP . 19
4.4 System function block (SF) requirements . 19
4.4.1 General requirements . 19
4.4.2 Assignment of unique system function ID (SFI) . 19
4.4.3 Implementing configurable transmission groups . 20
4.5 Serial to network gateway function (SNGF) requirements . 20
4.5.1 General requirements . 20
4.5.2 Serial line output buffer management . 21
4.5.3 Datagram output requirements . 22
4.5.4 Multi SF serial port . 22
4.5.5 Handling malformed data received on serial line . 22
4.6 PGN to network gateway function (PNGF) requirements . 23
4.6.1 General requirements . 23
4.6.2 Output buffer management from IEC 61162-450 network to IEC 61162-3
network. 23
4.6.3 Datagram output requirements . 23
4.6.4 PGN group number . 23
4.7 Other network function (ONF) requirements . 24
5 Low level network requirements . 24

5.1 Electrical and mechanical requirements . 24
5.2 Network protocol requirements. 25
5.3 IP address assignment for equipment . 26
5.4 Multicast address range . 26
5.5 Device address for instrument networks . 26
6 Transport layer specification . 26
6.1 General . 26
6.2 UDP messages . 27
6.2.1 UDP multicast protocol . 27
6.2.2 Use of multicast addresses and port numbers . 27
6.2.3 UDP checksum . 29
6.2.4 Datagram size . 29
7 Application layer specification . 30
7.1 Datagram header . 30

7.1.1 Valid header . 30

7.1.2 Error logging . 30

7.2 General IEC 61162-1 sentence transmissions . 30

7.2.1 Application of this protocol . 30

7.2.2 Types of messages for which this protocol can be used . 30

7.2.3 TAG block parameters for sentences transmitted in the datagram . 30

7.2.4 Requirements for processing incoming datagrams . 34

7.2.5 Error logging for processing incoming datagrams . 34

7.3 Binary file transfer using UDP multicast – Single transmitter, multiple

receivers . 34

7.3.1 Application of this protocol . 34
7.3.2 Binary file structure. 35
7.3.3 61162-450 header . 35
7.3.4 Binary file descriptor structure . 37
7.3.5 Binary file data fragment . 38
7.3.6 Sender process for binary file transfer . 39
7.3.7 Receiver process for binary file transfer . 42
7.3.8 Other requirements . 44
7.3.9 Error logging . 46
7.4 General IEC 61162-3 PGN message transmissions . 46
7.4.1 Message structure . 46
7.4.2 Message format . 47
7.4.3 Address translation requirements. 47
7.4.4 Message processing . 48
7.4.5 Additional management requirements . 48
7.5 System function ID resolution. 48
7.5.1 General . 48
7.5.2 Transmitter functions . 49
7.6 Binary file transfer using TCP point-to-point . 49
7.6.1 Definition . 49
7.6.2 Data field structure for transfer of files . 50
7.6.3 Structure of the transfer stream . 52
7.6.4 TCP port and IP addresses . 52
7.6.5 Implementation guidance . 52
8 Methods of test and required results . 53

8.1 Test set-up and equipment . 53
8.2 Basic requirements . 54
8.2.1 Equipment to be connected to the network . 54
8.2.2 Network infrastructure equipment . 54
8.2.3 Documentation . 54
8.3 Network function (NF) . 54
8.3.1 Maximum data rate . 54
8.3.2 Error logging function . 55
8.4 System function block (SF) . 55
8.4.1 General . 55
8.4.2 Assignment of unique system function ID (SFI) . 55
8.4.3 Implementing configurable transmission groups . 55
8.5 Serial to network gateway function (SNGF) . 55
8.5.1 General . 55

– 4 – IEC 61162-450:2018 © IEC 2018

8.5.2 Serial line output buffer
...

IEC 61162-450 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Digital interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

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 [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
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
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bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

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The advanced search enables to find IEC publications by a 67 000 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 61162-450 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Digital interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-5687-9

– 2 – IEC 61162-450:2018 RLV © IEC 2018

CONTENTS
FOREWORD . 7

1 Scope . 9

2 Normative references . 10

3 Terms and definitions . 11

4 General network and equipment requirements . 14

4.1 Network topology example . 14

4.2 Basic requirements . 15
4.2.1 Requirements for equipment to be connected to the network . 15
4.2.2 Additional requirements for network infrastructure equipment . 16
4.3 Network function (NF) requirements . 17
4.3.1 General requirements . 17
4.3.2 Maximum data rate requirements . 17
4.3.3 Error logging function . 17
4.3.4 Provisions for network traffic filtering – IGMP . 19
4.4 System function block (SF) requirements . 19
4.4.1 General requirements . 19
4.4.2 Assignment of unique system function ID (SFI) . 19
4.4.3 Implementing configurable transmission groups . 20
4.5 Serial to network gateway function (SNGF) requirements . 20
4.5.1 General requirements . 20
4.5.2 Serial line output buffer management . 21
4.5.3 Datagram output requirements . 22
4.5.4 Multi SF serial port . 22
4.5.5 Handling malformed data received on serial line . 22
4.6 PGN to network gateway function (PNGF) requirements . 23
4.6.1 General requirements . 23
4.6.2 Output buffer management from IEC 61162-450 network to IEC 61162-3
network. 23
4.6.3 Datagram output requirements . 23
4.6.4 PGN group number . 23
4.7 Other network function (ONF) requirements . 24
5 Low level network requirements . 24

5.1 Electrical and mechanical requirements . 24
5.2 Network protocol requirements. 25
5.3 IP address assignment for equipment . 26
5.4 Multicast address range . 26
5.5 Device address for instrument networks . 26
6 Transport layer specification . 26
6.1 General . 26
6.2 UDP messages . 27
6.2.1 UDP multicast protocol . 27
6.2.2 Use of multicast addresses and port numbers . 28
6.2.3 UDP checksum . 29
6.2.4 Datagram size . 30
7 Application layer specification . 30
7.1 Datagram header . 30

7.1.1 Valid header . 30

7.1.2 Error logging . 30

7.2 General IEC 61162-1 sentence transmissions . 30

7.2.1 Application of this protocol . 30

7.2.2 Types of messages for which this protocol can be used . 30

7.2.3 TAG block parameters for sentences transmitted in the datagram . 31

7.2.4 Requirements for processing incoming datagrams . 34

7.2.5 Error logging for processing incoming datagrams . 34

7.3 Binary image file transfer using UDP multicast – Single transmitter, multiple

receivers . 34

7.3.1 Application of this protocol . 34
7.3.2 Binary image file structure . 35
7.3.3 61162-450 header . 35
7.3.4 Binary image file descriptor structure . 37
7.3.5 Binary image file data fragment . 39
7.3.6 Sender process for binary image file transfer . 39
7.3.7 Receiver process for binary image file transfer . 43
7.3.8 Other requirements . 45
7.3.9 Error logging . 47
7.4 General IEC 61162-3 PGN message transmissions . 47
7.4.1 Message structure . 47
7.4.2 Message format . 48
7.4.3 Address translation requirements. 48
7.4.4 Message processing . 49
7.4.5 Additional management requirements . 49
7.5 System function ID resolution. 49
7.5.1 General . 49
7.5.2 Transmitter functions . 50
7.6 Binary file transfer using TCP point-to-point . 50
7.6.1 Definition . 50
7.6.2 Data field structure for transfer of files . 51
7.6.3 Structure of the transfer stream . 53
7.6.4 TCP port and IP addresses . 53
7.6.5 Implementation guidance . 53
8 Methods of test and required results . 54

8.1 Test set-up and equipment . 54
8.2 Basic requirements . 55
8.2.1 Equipment to be connected to the network . 55
8.2.2 Network infrastructure equipment . 55
8.2.3 Documentation . 55
8.3 Network function (NF) . 55
8.3.1 Maximum data rate . 55
8.3.2 Error logging function . 56
8.4 System function block (SF) . 56
8.4.1 General . 56
8.4.2 Assignment of unique system function ID (SFI) . 56
8.4.3 Implementing configurable transmission groups . 56
8.5 Serial to network gateway function (SNGF) . 56
8.5.1 General . 56

– 4 – IE
...

IEC 61162-450 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

Matériels et systèmes de navigation et de radiocommunication maritimes –
Interfaces numériques –
Partie 450: Émetteurs multiples et récepteurs multiples – Interconnexion
Ethernet
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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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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IEC 61162-450 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Maritime navigation and radiocommunication equipment and systems – Digital

interfaces –
Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

Matériels et systèmes de navigation et de radiocommunication maritimes –

Interfaces numériques –
Partie 450: Émetteurs multiples et récepteurs multiples – Interconnexion

Ethernet
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-6109-5

– 2 – IEC 61162-450:2018 © IEC 2018
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General network and equipment requirements . 14
4.1 Network topology example . 14
4.2 Basic requirements . 15
4.2.1 Requirements for equipment to be connected to the network . 15
4.2.2 Additional requirements for network infrastructure equipment . 16
4.3 Network function (NF) requirements . 16
4.3.1 General requirements . 16
4.3.2 Maximum data rate requirements . 16
4.3.3 Error logging function . 17
4.3.4 Provisions for network traffic filtering – IGMP . 19
4.4 System function block (SF) requirements . 19
4.4.1 General requirements . 19
4.4.2 Assignment of unique system function ID (SFI) . 19
4.4.3 Implementing configurable transmission groups . 20
4.5 Serial to network gateway function (SNGF) requirements . 20
4.5.1 General requirements . 20
4.5.2 Serial line output buffer management . 21
4.5.3 Datagram output requirements . 22
4.5.4 Multi SF serial port . 22
4.5.5 Handling malformed data received on serial line . 22
4.6 PGN to network gateway function (PNGF) requirements . 23
4.6.1 General requirements . 23
4.6.2 Output buffer management from IEC 61162-450 network to IEC 61162-3
network. 23
4.6.3 Datagram output requirements . 23
4.6.4 PGN group number . 24
4.7 Other network function (ONF) requirements . 24
5 Low level network requirements . 24
5.1 Electrical and mechanical requirements . 24
5.2 Network protocol requirements. 25
5.3 IP address assignment for equipment . 26
5.4 Multicast address range . 26
5.5 Device address for instrument networks . 26
6 Transport layer specification . 26
6.1 General . 26
6.2 UDP messages . 27
6.2.1 UDP multicast protocol . 27
6.2.2 Use of multicast addresses and port numbers . 27
6.2.3 UDP checksum . 29
6.2.4 Datagram size . 29

7 Application layer specification . 30
7.1 Datagram header . 30
7.1.1 Valid header . 30
7.1.2 Error logging . 30
7.2 General IEC 61162-1 sentence transmissions . 30
7.2.1 Application of this protocol . 30
7.2.2 Types of messages for which this protocol can be used . 30
7.2.3 TAG block parameters for sentences transmitted in the datagram . 30
7.2.4 Requirements for processing incoming datagrams . 34
7.2.5 Error logging for processing incoming datagrams . 34
7.3 Binary file transfer using UDP multicast – Single transmitter, multiple
receivers . 34
7.3.1 Application of this protocol . 34
7.3.2 Binary file structure. 35
7.3.3 61162-450 header . 35
7.3.4 Binary file descriptor structure . 37
7.3.5 Binary file data fragment . 38
7.3.6 Sender process for binary file transfer . 39
7.3.7 Receiver process for binary file transfer . 42
7.3.8 Other requirements . 44
7.3.9 Error logging . 46
7.4 General IEC 61162-3 PGN message transmissions . 46
7.4.1 Message structure . 46
7.4.2 Message format . 47
7.4.3 Address translation requirements.
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