SIST EN 62287-1:2007

Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) -- Part 1: Carrier-sense time division multiple access (CSTDMA) techniques

This part of IEC 62287 specifies the minimum operational and performance requirements, methods of testing and required test results for Class B shipborne AIS equipment using CSTDMA techniques. This standard takes into account other associated IEC International Standards and existing national standards, as applicable. It is applicable for AIS equipment used on craft that are not covered by the mandatory carriage requirement of AIS under SOLAS Chapter V. An AIS station intended to operate in receive-only mode shall not be considered a Class B shipborne mobile AIS station.

Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Geräte der Klasse B des automatischen Identifikationssystems (AIS) für Schiffe -- Teil 1: Zeitmultiplex-Vielfachzugriffstechniken mit Aktivitätserkennung (CSTDMA)

Matériels et systèmes de navigation et de radiocommunications maritimes - Transpondeur embarqué du système d'identification automatique (AIS) de classe B -- Partie 1: Technique d'accès multiple par répartition dans le temps avec écoute de porteuse (CSTDMA)

Pomorska navigacijska in radiokomunikacijska oprema in sistemi - Ladijska oprema razreda B avtomatičnega identifikacijskega sistema (AIS) - 1. del: Tehnike uporabniško občutljivega časovno porazdeljenega večuporabniškega sodostopa (CSTDMA) (IEC 62287-1:2006)

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-2006
• Withdrawal Date: 06-Jan-2014
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 06-Jan-2014
• Due Date: 29-Jan-2014
• Completion Date: 07-Jan-2014
• Ref Project: EN 62287-1:2006 - Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) - Part 1: Carrier-sense time division multiple access (CSTDMA) techniques

Relations

• Replaced By: SIST EN 62287-1:2011 - Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) - Part 1: Carrier-sense time division multiple access (CSTDMA) techniques (IEC 62287-1:2010)
• Effective Date: 28-Jan-2023
• Revised: SIST EN 62287-1:2011 - Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) - Part 1: Carrier-sense time division multiple access (CSTDMA) techniques (IEC 62287-1:2010)
• Effective Date: 07-Jan-2014
• Replaced By: SIST EN 62287-1:2011 - Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) - Part 1: Carrier-sense time division multiple access (CSTDMA) techniques (IEC 62287-1:2010)
• Effective Date: 07-Jun-2022

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EUROPEAN STANDARD
EN 62287-1

NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM

ICS 47.020.70


English version


Maritime navigation and radiocommunication equipment and systems -
Class B shipborne equipment of the automatic identification system (AIS)
Part 1: Carrier-sense time division multiple access (CSTDMA) techniques
(IEC 62287-1:2006)


Matériels et systèmes de navigation  Navigations- und
et de radiocommunications maritimes - Funkkommunikationsgeräte und -systeme
Transpondeur embarqué du système für die Seeschifffahrt -
d'identification automatique (AIS) Geräte der Klasse B des automatischen
de classe B Identifikationssystems (AIS) für Schiffe
Partie 1: Technique d'accès multiple Teil 1: Zeitmultiplex-
par répartition dans le temps Vielfachzugriffstechniken
avec écoute de porteuse (CSTDMA) mit Aktivitätserkennung (CSTDMA)
(CEI 62287-1:2006) (IEC 62287-1:2006)




This European Standard was approved by CENELEC on 2006-04-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62287-1:2006 E

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EN 62287-1:2006 - 2 -
Foreword
The text of document 80/426/FDIS, future edition 1 of IEC 62287-1, prepared by IEC TC 80, Maritime
navigation and radiocommunication equipment and systems, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 62287-1 on 2006-04-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62287-1:2006 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 62287-1:2006

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year
1) 2)
IEC 60945 Maritime navigation and radiocommunication EN 60945
- 2002
equipment and systems - General
requirements - Methods of testing and
required test results


1) 2)
IEC 61108-1 - Maritime navigation and radiocommunication EN 61108-1 2003
equipment and systems - Global navigation
satellite systems (GNSS)
Part 1: Global positioning system (GPS) -
Receiver equipment - Performance
standards, methods of testing and required
test results


IEC 61162 Series Maritime navigation and radiocommunication EN 61162 Series
equipment and systems - Digital interfaces


1) 2)
IEC 61993-1 Maritime navigation and radiocommunication EN 61993-1
- 1999
equipment and systems
Part 1: Shipborne automatic transponder
system installation using VHF digital selective
calling (DSC) techniques - Operational and
performance requirements, methods of
testing and required test results


1) 2)
IEC 61993-2 Maritime navigation and radiocommunication EN 61993-2
- 2002
equipment and systems - Automatic
identification systems (AIS)
Part 2: Class A shipborne equipment of the
universal automatic identification system
(AIS) - Operational and performance
requirements, methods of test and required
test results


ISO/IEC 3309 1993 Information technology - Telecommunications - -
and information exchange between systems -
High-level data link control (HDLC)
procedures - Frame structure


1)
IMO MSC.140(76) Recommendation for the protection of the AIS - -
-
VHF data link



1)
Undated reference.
2)
Valid edition at date of issue.

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EN 62287-1:2006 - 4 -

Publication Year Title EN/HD Year
1)
ITU-R Digital selective-calling system for use in the - -
-
Recommendation maritime mobile service
M.493-11


1)
ITU-R Characteristics of a transponder system using - -
-
Recommendation digital selective calling techniques for use
M.825-3 with vessel traffic services and ship-to-ship
identification


1)
ITU-R Interim solutions to improve efficiency in the - -
-
Recommendation use of the band 156-174 MHz by stations in
M.1084-4 the maritime mobile service


1)
ITU-R Technical characteristics for a universal - -
-
Recommendation shipborne automatic identification system
M.1371-1 using time division multiple access in the VHF
maritime mobile band


1)
ITU-T Basic parameters for the measurement of - -
-
Recommendation error performance at bit rates below the
O.153 primary rate

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INTERNATIONAL IEC


STANDARD 62287-1





First edition
2006-03


Maritime navigation and radiocommunication
equipment and systems –
Class B shipborne equipment of the
automatic identification system (AIS) –
Part 1:
Carrier-sense time division multiple access
(CSTDMA) techniques

 IEC 2006  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XC
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 62287-1  IEC:2006(E)
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Abbreviations .9
4 General requirements .10
4.1 General .10
4.2 Manuals .12
4.3 Marking and identification.12
5 Environmental, power supply, interference and safety requirements .12
6 Performance requirements .13
6.1 Composition .13
6.2 Operating frequency channels .13
6.3 GNSS receiver for position reporting .13
6.4 Identification.14
6.5 AIS information .14
6.6 Alarms and indications, fall-back arrangements.15
6.7 User interface.17
7 Technical requirements .17
7.1 General .17
7.2 Physical layer.18
7.3 Link layer .21
7.4 Network layer .36
7.5 Transport layer.38
7.6 Digital Selective Calling (DSC) .38
8 Test conditions .38
8.1 General .38
8.2 Normal and extreme test conditions.38
8.3 Test signals.39
8.4 Test arrangements .40
9 Power supply, environmental and EMC tests .42
9.1 Test summary .42
9.2 Vibration/shock .43
9.3 Performance tests/checks .44
9.4 Undervoltage test (brown out) .44
10 Operational tests .45
10.1 General .45
10.2 Modes of operation.45
10.3 Messages extending one time period.48
10.4 Channel selection.48
10.5 Internal GNSS receiver.49
10.6 AIS information .49
10.7 Initialisation period .52
10.8 Alarms and indications, fall-back arrangements.52
10.9 User interface.53

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62287-1  IEC:2006(E) – 3 –
11 Physical tests .55
11.1 TDMA transmitter .55
11.2 TDMA receivers.59
11.3 Conducted spurious emissions .66
12 Specific tests of link layer.67
12.1 TDMA synchronisation.67
12.2 Carrier-sense tests.68
12.3 VDL state/reservations .70
12.4 Data encoding (bit stuffing) .70
12.5 Frame check sequence .71
12.6 Slot allocation (channel access protocol).71
12.7 Assigned operation.72
12.8 Message formats.73
13 Specific tests of network layer .74
13.1 Regional area designation by VDL message.74
13.2 Regional area designation by serial message or manually.75
13.3 Management of received regional operating settings .75

Annex A (informative) Results of computer simulations and testing of CSTDMA technology.78
Annex B (informative) Description of the system .81
Annex C (normative) DSC channel management.82
Annex D (informative) Channel management regions.89

Figure 1 – OSI layer model .18
Figure 2 – Carrier-Sense timing .22
Figure 3 – Power versus time mask .23
Figure 4 – Transmission packet .24
Figure 5 – Training sequence.26
Figure 6 – Transmission timing .28
Figure 7 – Example for CSTDMA access .29
Figure 8 – Format for repeating four-packet cluster.40
Figure 9 – Measurement arrangement for carrier power .55
Figure 10 – Emission mask .56
Figure 11 – Measurement arrangement for modulation accuracy.57
Figure 12 – Measurement arrangement.59
Figure 13 – Measurement arrangement with two generators .60
Figure 14 – SINAD or PER/BER Measuring Equipment .62
Figure 15 – Measurement arrangement for intermodulation.64
Figure 16 – Configuration for Carrier-Sense threshold test.69
Figure 17 – Regional area scenario .74
Figure A.1 – Effect on Class A AIS messages of Class B messages .78
Figure A.2 – Reception of messages by Class A AIS .79
Figure A.3 – Reception of messages by Class B AIS .79
Figure A.4 – Range achieved by a Class A AIS from Class B AIS. .80
Figure D.1 – Channel management regions used for test given in 13.3.1 .89

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– 4 – 62287-1  IEC:2006(E)

Table 1 – Position sensor fallback conditions.16
Table 2 – Use of accuracy (PA) flag.16
Table 3 – Transceiver characteristics.19
Table 4 – Transmitter parameters .20
Table 5 – Receiver parameters .21
Table 6 – Definition of timings for Figure 3.23
Table 7 – Start-buffer.25
Table 8 – Summary of the transmission packet .27
Table 9 – Transmission timing .27
Table 10 – Access parameters.29
Table 11 – Use of VDL messages by a Class B”CS” AIS.32
Table 12 – Number of data bits for use with Message 14 .33
Table 13 – Contents of Message 18.33
Table 14 – Message 24 Part A: .34
Table 15 – Message 24 Part B: .35
Table 16 – Contents of Message 23.35
Table 17 – Reporting Interval Settings for use with Message 23 .36
Table 18 – Channel management .37
Table 19 – Content of first two packets .40
Table 20 – Fixed PRS data derived from ITU-T.O.153 .40
Table 21 – Test summary .42
Table 22 – Peak frequency deviation versus time .58
Table 23 – Frequencies for inter-modulation test .65
Table 24 – Required threshold test results .69
Table 25 – Required carrier sense timing results .70
Table 26 – Required channels in use .75
Table C.1 – DSC monitoring times .83

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62287-1  IEC:2006(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
CLASS B SHIPBORNE EQUIPMENT OF THE
AUTOMATIC IDENTIFICATION SYSTEM (AIS) –

Part 1: Carrier-sense time division multiple access
(CSTDMA) techniques


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
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members of its technical committees and IEC National Committees for any personal injury, property damage or
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62287-1 has been prepared by IEC technical committee 80:
Maritime navigation and radiocommunication equipment and systems.
The text of this standard is based on the following documents:
FDIS Report on voting
80/426/FDIS 80/434/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 6 – 62287-1  IEC:2006(E)
IEC 62287 consists of the following parts, under the general title Maritime navigation and
radiocommunication and systems – Class B shipborne equipment of the automatic
identification system (AIS)
Part 1: Carrier-sense time division multiple access (CSTDMA) techniques
Part 2: Self-organising time division multiple access (SOTDMA) techniques
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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62287-1  IEC:2006(E) – 7 –
INTRODUCTION
In the ITU Radiocommunications Sector Recommendation ITU-R M.1371-1 "Technical
characteristics for a universal shipborne Automatic Identification System (AIS) using SOTDMA
(Self-Organising Time Division Multiple Access) in the VHF maritime mobile band", provision
is made for a Class B AIS for use on craft not covered by a mandatory carriage requirement
under SOLAS Chapter V, Regulation 19. This part of IEC 62287 sets out the requirements,
methods of test and required test results for such a Class B AIS.
The International Maritime Organization (IMO), in its Resolution MSC.140(76), recognised that
the radio channels used by AIS, particularly AIS 1 (161,975 MHz) and AIS 2 (162,025 MHz),
are regarded as an AIS network, and any disruption to those channels by any one AIS device
could affect the operation of all AIS devices on that network. IMO also recognised that
Administrations should take steps necessary to ensure the integrity of the radio channels
used for AIS in their waters.
IEC Technical Committee 80 (TC 80) allocated a new work item 80/287/NP to Working Group
8a (WG 8a), tasking them with producing a test standard for Class B AIS equipment. During
the development of this test standard, Administrations expressed concern that large numbers
of Class B AIS equipped vessels could have a detrimental effect on the safe operation of the
AIS network by SOLAS Class A vessels, Base Stations and AIS on Aids to Navigation (AtoN
AIS). As a result, a new network access technology was developed, which allows large
numbers of Class B fitted vessels to coexist with Class A with a negligible detrimental effect
on AIS network.
The new technology, hereinafter referred to as “Carrier-Sense TDMA (CSTDMA)”, requires
that the Class B“CS”AIS listens to the AIS network to determine if the network is free of
activity and, only if the network is free, can it transmit its information. This Class B AIS is also
required to listen for reservations from base stations and comply with these reservations. This
polite operation ensures that this Class B AIS minimises the probability of interference with
Class A, Base Station or AtoN AIS operations. Extensive computer models simulation and
practical laboratory testing and sea trials were undertaken to validate CSTDMA during its
development (see Annex A).
WG8a recognised that the primary function of a Class B AIS is for fitted vessels to be visible
and participate in the AIS network. CSTDMA was designed to fulfil these requirements.
This Class B AIS is backward compatible with ITU-R Recommendation M.1371-1 (see Annex B).

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