Maritime navigation and radiocommunication 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

Specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards adopted by the IMO in resolution MSC.74(69), Annex 3, Universal Shipborne Automatic Identification System. Incorporates the technical characteristics of Class A shipborne equipment included in Recommendation ITU-R M1371-1 and takes into account the ITU Radio Regulations where applicable.

Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Automatische Identifikationssysteme (AIS) -- Teil 2: Geräte der Klasse A des universellen automatischen Identifikationssystems (AIS) für Schiffe - Betriebs- und Leistungsanforderungen, Prüfverfahren und geforderte Prüfergebnisse

Matériels et systèmes de navigation et de radiocommunications maritimes - Systèmes d'identification automatique (AIS) -- Partie 2: Equipements AIS de type Classe A embarqués - Exigences d'exploitation et de fonctionnement, méthodes d'essai et résultats d'essai exigés

Maritime navigation and radiocommunication 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 (IEC 61993-2:2001)

General Information

Status
Withdrawn
Publication Date
30-Jun-2004
Withdrawal Date
22-Jul-2018
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
23-Jul-2018
Due Date
15-Aug-2018
Completion Date
23-Jul-2018

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SLOVENSKI SIST EN 61993-2:2004

STANDARD
julij 2004
Maritime navigation and radiocommunication 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 (IEC 61993-2:2001)
ICS 47.020.70 Referenčna številka
SIST EN 61993-2:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 61993-2
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2002
ICS 47.020.70
English version
Maritime navigation and radiocommunication 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
(IEC 61993-2:2001)
Matériels et systèmes de navigation Navigations- und Funkkommunikations-
et de radiocommunications maritimes - geräte und -systeme für die Seeschifffahrt -
Systèmes d'identification automatique (AIS) Automatische Identifikationssysteme (AIS)
Partie 2: Equipements AIS Teil 2: Geräte der Klasse A
de type Classe A embarqués - des universellen automatischen
Exigences d'exploitation et de Identifikationssystems (AIS) für Schiffe -
fonctionnement, méthodes d'essai Betriebs- und Leistungsanforderungen,
et résultats d'essai exigés Prüfverfahren und geforderte
(CEI 61993-2:2001) Prüfergebnisse
(IEC 61993-2:2001)
This European Standard was approved by CENELEC on 2002-02-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and 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
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61993-2:2002 E

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EN 61993-2:2002 - 2 -
Foreword
The text of document 80/315/FDIS, future edition 1 of IEC 61993-2, 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 61993-2 on 2002-02-01.
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) 2002-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-02-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes D and ZA are normative and annexes A, B, C and E are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61993-2:2001 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 61993-2:2002
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates, by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references, the latest edition of the publication referred to applies (including
amendments).
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 EN 60945 1997
radiocommunication equipment and
systems - General requirements -
Methods of testing and required test
results
1) 2)
IEC 61108-1 - Maritime navigation and EN 61108-1 1996
radiocommunication 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
1) 2)
IEC 61108-2 - Part 2: Global navigation satellite system EN 61108-2 1998
(GLONASS) - Receiver equipment -
Performance standards, methods of
testing and required test results
3)
IEC 61108-4 - Part 4: Shipborne DGPS and --
DGLONASS maritime radio beacon
receiver equipment - Performance
requirements, methods of testing and
required test results
1) 2)
IEC 61162-1 - Maritime navigation and EN 61162-1 2000
radiocommunication equipment and
systems - Digital interfaces
Part 1: Single talker and multiple listeners
1) 2)
IEC 61162-2 - Part 2: Single talker and multiple EN 61162-2 1998
listeners, high-speed transmission
3)
IEC 61162-3 - Part 3: Serial data instrument network - -

1)
Undated reference.
2)
Valid edition at time of issue.
3)
To be printed.

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EN 61993-2:2002 - 4 -
Publication Year Title EN/HD Year
1) 2)
IEC 61993-1 - Maritime navigation and EN 61993-1 1999
radiocommunication 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)
ISO/IEC 3309 - Information technology – --
Telecommunications and information
exchange between systems - High-level
data link control (HDLC) procedures -
Frame structure
IMO Resolution 1991 General requirements for shipborne radio--
A.694(17) equipment forming part of the global
maritime distress and safety system
(GMDSS) and for electronic navigational
aids
IMO Resolution 1995 Worldwide radionavigation system - -
A.815(19)
IMO Resolution 1997 General principles for ship reporting--
A.851(20) systems and ship reporting requirements,
including guidelines for reporting
incidents involving dangerous goods,
harmlful sustances and/or marine
pollutants
1)
IMO Resolution - Guidelines and Criteria for Ship --
MSC.43(64) Reporting Systems (as amended by
MSC.111(73))
1)
IMO Resolution - Performance standards for an Universal--
MSC.74(69) sphipborne automatic identification
systems (AIS)
1)
IMO Guidelines - Guidelines on the operational use of AIS--
(provisional)
1)
ITU-R - Technical characteristics of VHF --
Recommendation radiotelephone equipment operating in
M.489-2 the maritime mobile service in channels
spaced by 25 kHz
1)
ITU-R - Characteristics of a transponder system--
Recommendation using digital selective calling techniques
M.825-3 for use with vessel traffic services and
ship-to-ship identification
1)
ITU-R - Interim solutions to improve efficiency in--
Recommendation the use of the band 156-174 MHz by
M.1084-4 stations in the maritime mobile service

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- 5 - EN 61993-2:2002
Publication Year Title EN/HD Year
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)
-- IALA Technical clarifications to --
recommendation ITU-R M.1371-1

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INTERNATIONAL IEC
STANDARD
61993-2
First edition
2001-12
Maritime navigation and radiocommunication
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
© IEC 2001 ⎯ 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 Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
XE
International Electrotechnical Commission
For price, see current catalogue

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– 2 – 61993-2 © IEC:2001(E)
CONTENTS
FOREWORD.5
INTRODUCTION.6
1 Scope .7
2 Normative References .7
3 Abbreviations.9
4 General requirements .10
4.1 General .10
4.2 Modes of Operation.11
4.3 Manuals .11
4.4 Marking and identification.11
5 Environmental, power supply, special purpose and safety requirements .12
6 Performance requirements.12
6.1 Composition .12
6.2 Internal GNSS Receiver .13
6.3 User interface.13
6.4 Identification.14
6.5 Information.14
6.6 Security.15
6.7 Permissible initialisation period .15
6.8 Power supply.16
6.9 Technical characteristics .16
6.10 Alarms and indications, fall-back arrangements.16
6.11 Display, input and output.20
7 Technical requirements.21
7.1 General .21
7.2 Physical layer.22
7.3 Link layer .22
7.4 Network layer .24
7.5 Transport layer.25
7.6 Presentation interface .25
8 DSC compatibility .31
9 Long range applications.31
9.1 General .31
9.2 Interrogations and responses .31
10 Test conditions .32
10.1 General .32
10.2 Normal and extreme test conditions.33
10.3 Standard Test environment .33
10.4 Test Signals .33
10.5 Arrangements for test signals applied to the receiver input.33
10.6 Encoder for receiver measurements .34
10.7 Waiver for receivers .34
10.8 Impedance .34
10.9 Artificial antenna (dummy load) .34

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61993-2 © IEC:2001(E) – 3 –
10.10 Facilities for access.34
10.11 Modes of operation of the transmitter .34
10.12 Measurement uncertainties .35
11 Power supply, special purpose and safety tests .35
12 Environmental tests .35
13 E M C tests.36
14 Operational tests .36
14.1 Operating modes/Capability.36
14.2 Multiple slot messages .38
14.3 Information content .39
14.4 Reporting rates.39
14.5 Security.41
14.6 Initialisation period .41
14.7 Channel selection.41
14.8 Transceiver protection.41
14.9 Alarms and indicators, fall-back arrangements .42
14.10 Display and control.45
15 Physical Tests .46
15.1 TDMA Transmitter .46
15.2 DSC Transmissions.51
15.3 TDMA Receivers .52
15.4 DSC Receiver.62
15.5 Conducted Spurious Emissions conveyed to the antenna .65
16 Specific tests of Link Layer .66
16.1 TDMA Synchronisation .66
16.2 Time division (Frame format).67
16.3 Synchronisation jitter.67
16.4 Data encoding (bit stuffing) .68
16.5 Frame check sequence .68
16.6 Slot allocation (Channel access protocols) .68
16.7 Message Formats.70
17 Specific tests of Network Layer.71
17.1 Dual channel operation.71
17.2 regional area designation by VDL message .71
17.3 regional area designation by serial message .72
17.4 Power setting .72
17.5 Message priority handling.73
17.6 Slot reuse (link congestion) .73
17.7 Management of received regional operating settings .73
17.8 Continuation of autonomous mode reporting rate.76
18 Specific tests of Transport Layer.76
18.1 Addressed messages .76
18.2 Interrogation responses.77
18.3 Other non periodic messages .77

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– 4 – 61993-2 © IEC:2001(E)
19 Specific Presentation Interface Tests.77
19.1 General .77
19.2 Check of the manufacturer's documentation .78
19.3 Electrical test .78
19.4 Test of input sensor interface performance.78
19.5 Test of sensor input.79
19.6 Test of high speed output .79
19.7 High speed output Interface performance .79
19.8 Test of high speed input .79
20 DSC functionality tests.80
20.1 General .80
20.2 Regional area designation .80
20.3 Scheduling .80
20.4 Polling.80
21 Long Range functionality tests .81
21.1 LR interrogation.81
21.2 LR ”all ships” interrogation .81
21.3 Consecutive LR ”all ships” interrogations.82
Annex A (informative) Block diagram of AIS.83
Annex B (informative) New IEC 61162-1 sentences due to AIS .84
Annex C (informative) Long range application.113
Annex D (normative) AIS Interface Overview .114
Annex E (informative) Block diagram of AIS test system .115

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61993-2 © IEC:2001(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MARITIME NAVIGATION AND RADIOCOMMUNICATION
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
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61993-2 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
80/315/FDIS 80/328/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 3.
The committee has decided that the contents of this publication will remain unchanged until
2006-07. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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– 6 – 61993-2 © IEC:2001(E)
INTRODUCTION
Following the adoption by the International Maritime Organisation (IMO) of Resolution
MSC.74(69) Annex 3, Performance Standard for a Universal Shipborne Automatic Identifica-
tion System, TC 80 established Working Group 8A to develop IEC 61993-2. Technical
requirements were provided in ITU-R M.1371 "Technical characteristics for a universal
shipborne Automatic Identification System (AIS) using TDMA (Self-Organising Time Division
Multiple Access) in the VHF maritime mobile band". Carriage requirements for SOLAS ships
have been adopted by IMO for entry into force starting on July 1st 2002.
It was brought to the attention of WG8A that patents and patents pending pertaining to AIS
have been made freely available. TC 80 WG8A considers the technical implementation
specified by this International Standard to be in full accordance with the requirements of
Recommendation ITU-R M.1371-1 and as such to be free from claims of intellectual property
rights.
The provision of a high-speed network connection IEC 61162-3 is optional. It may become a
requirement in a later revision of this standard, when the relevant standard (IEC 61162-3) has
been adopted.
The IMO Resolution MSC.74(69) Annex 3, Performance Standard for an Universal Shipborne
Automatic Identification System, requires that the AIS has a means of processing data from
an electronic position fixing system that provides a resolution of one ten-thousandth of a
minute of arc and uses the WGS 84 datum. Resolution A.815(19) requires an accuracy of
position information better than 10 m in confined waters. This does not require but implies
that if the ship is not equipped with a DGNSS, the GNSS sensor internal to the AIS should be
a DGNSS and should be used as source of position information.
Moreover, Resolution MSC.74(69) Annex 3 does not include any requirement for backup
arrangements of the position information. However, a GNSS sensor is included in the AIS
equipment as the source of UTC. It is felt by IEC TC 80 that this GNSS sensor also can be
used as a back-up arrangement for the position information obtained from the ships DGNSS.
This would ensure the availability of the AIS system in case of failure of the ship’s EPFS.
Therefore, IEC TC 80 strongly recommends that manufacturers of AIS equipment implement
such an arrangement in accordance with table 4 of this International Standard.
Note that an IEC standard detailing class B AIS is being prepared as IEC 62287.

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61993-2 © IEC:2001(E) – 7 –
MARITIME NAVIGATION AND RADIOCOMMUNICATION
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
1 Scope
This International Standard specifies the minimum operational and performance requirements,
methods of testing and required test results conforming to performance standards adopted by
the IMO in resolution MSC.74(69), Annex 3, Universal Shipborne Automatic Identification
System. This standard incorporates the technical characteristics of Class A shipborne
equipment included in Recommendation ITU-R M1371-1 and takes into account the ITU Radio
Regulations where applicable. In addition it takes account of IMO resolution A.694(17) to
which IEC 60945 is associated.
This International Standard also specifies the minimum requirements both for the means to
input and display data and for the interfaces to other equipment suitable to be used as means
of input and display data.
NOTE All text of this standard, that is identical to that in IMO resolution MSC.74(69), Annex 3 and IMO resolution
A.694(17) or to that in ITU-R M.1371-1 is printed in italics and the resolution (abbreviated to – A3 or – A694
respectively) or the recommendation (abbreviated to – M.1371-1) and paragraph numbers are indicated in
parentheses i.e. (A3/3.3) or (M.1371-1/3.3)
...

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