EN 62320-1:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.NXãDQMNavigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Automatische Identifikationssysteme (AIS) - Teil 1: AIS-Basisstationen - Mindest-Betriebs- und -Leistungsanforderungen, Prüfverfahren und geforderte PrüfergebnisseEquipements et systèmes de navigation et de radiocommunication maritimes - Systèmes d'identification automatique (AIS) - Partie 1: Stations de base AIS - Exigences minimales opérationnelles et de performance, méthodes de mesure et résultats de test minimum attendusMaritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 1: AIS Base Stations - Minimum operational and performance requirements, methods of testing and required test results47.020.70Navigacijska in krmilna opremaNavigation and control equipmentICS:Ta slovenski standard je istoveten z:EN 62320-1:2015SIST EN 62320-1:2015en01-september-2015SIST EN 62320-1:2015SLOVENSKI
STANDARDSIST EN 62320-1:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 62320-1
February 2015 ICS 47.020.70
Supersedes
EN 62320-1:2007
English Version
Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 1: AIS Base Stations - Minimum operational and performance requirements, methods of testing and required test results (IEC 62320-1:2015)
Equipements et systèmes de navigation et de radiocommunication maritimes - Systèmes d'identification automatique (AIS) - Partie 1: Stations de base AIS - Exigences minimales opérationnelles et de performance, méthodes de mesure et résultats de test minimum attendus (IEC 62320-1:2015)
Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Automatische Identifikationssysteme (AIS) - Teil 1: AIS-Basisstationen - Mindest-Betriebs- und -Leistungsanforderungen, Prüfverfahren und geforderte Prüfergebnisse (IEC 62320-1:2015) This European Standard was approved by CENELEC on 2015-02-24. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17,
B-1000 Brussels © 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62320-1:2015 E SIST EN 62320-1:2015

This document supersedes EN 62320-1:2007.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62320-1:2015 was approved by CENELEC as a European Standard without any modification. SIST EN 62320-1:2015

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Annex ZA (normative)
Normative references to international publications with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.
Publication Year Title EN/HD Year IEC 61108-1 -
Maritime navigation and 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 EN 61108-1 -
IEC 61162-1 2010
Maritime navigation and radiocommunication equipment and systems - Digital interfaces -- Part 1: Single talker and multiple listeners EN 61162-1 2011
IEC 61993-2 -
Maritime navigation and radiocommunication equipment and systems - Automatic Identification Systems (AIS) -- Part 2: Class A shipborne equipment of the automatic identification system (AIS) - Operational and performance requirements, methods of test and required test results EN 61993-2 -
IEC 62287-1 2010
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 EN 62287-1 2011
IEC 62320-2 -
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 EN 62320-2 -
IALA Recommendation A-124 -
On Automatic Identification System (AIS) Shore Station networking aspects relating to the AIS Service - -
IMO Resolution MSC.74(69) -
Performance standards for an Universal sphipborne automatic identification systems (AIS) - -
ITU-R Recommendation M.1084-4 -
Interim solutions for improved efficiency in the use of the band 156-174 MHz by stations in the maritime mobile service - -
Technical characteristics for a universal shipborne automatic identification system using time division multiple access in the VHF maritime mobile band - -
RTCM 10402 version 2.4 -
RTCM Recommended Standards for Differential GNSS (Global Navigation Satellite Systems) Service - -
IEC 62320-1 Edition 2.0 2015-01 INTERNATIONAL STANDARD
Maritime navigation and radiocommunication equipment and systems – Automatic identification system (AIS) –
Part 1: AIS Base Stations – Minimum operational and performance requirements,
methods of testing and required test results
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ICS 47.020.70
ISBN 978-2-8322-2205-8
– 2 – IEC 62320-1:2015  IEC 2015 CONTENTS FOREWORD . 7 INTRODUCTION . 9 1 Scope . 10 2 Normative references . 10 3 Abbreviations . 11 4 Functional layout of an AIS Base Station . 12 4.1 General . 12 4.2 Functional block diagram of an AIS Base Station . 12 4.3 General VDL requirements . 13 4.3.1 Sources of VDL messages for transmission . 13 4.3.2 Use of access schemes . 14 4.4 Functional diagram for operation of a Base Station . 14 4.5 Base Station input/output sentence formatters . 15 5 Functional definition of the radio interface of the AIS Base Station . 17 5.1 General requirements of the physical layer . 17 5.2 Required parameter settings for the physical layer of the AIS Base Station . 18 5.3 Minimum requirements for the TDMA transmitter of the AIS Base Station . 19 5.4 Minimum requirements for the TDMA receivers of the AIS Base Station . 21 5.5 Shutdown procedure for an AIS Base Station . 21 6 Requirements for AIS Base Station . 21 6.1 General . 21 6.2 Dependent Base Station requirements . 22 6.2.1 General rules . 22 6.2.2 General processing diagram . 22 6.2.3 AIS Base Station response to PI input . 23 6.2.4 AIS Base Station response to VDL input . 23 6.3 Independent Base Station requirements . 23 6.3.1 General rules . 23 6.3.2 General processing diagram . 24 6.3.3 AIS Base Station response to PI input . 24 6.3.4 AIS Base Station interaction on the VDL . 25 6.3.5 Autonomous channel management . 29 6.4 BIIT conditions . 30 6.5 Default settings after reset . 30 6.6 Further requirements for optional features . 31 6.6.1 General . 31 6.6.2 External synchronisation source option . 31 6.6.3 DGNSS dedicated port option . 32 7 Functional definition of the presentation interface of the AIS Base Station . 32 7.1 Physical requirements for the presentation interface . 32 7.2 Presentation interface data exchange . 32 7.2.1 General . 32 7.2.2 Base Station presentation interface output . 32 7.2.3 Base Station presentation interface input . 32 7.2.4 TAG blocks on presentation interface . 32 SIST EN 62320-1:2015

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8 Tests of AIS Base Stations – Method of measurement and required results . 33 8.1 General . 33 8.2 Test conditions . 33 8.2.1 Normal test conditions . 33 8.2.2 Extreme test conditions . 33 8.2.3 Standard test environment . 33 8.2.4 Test signals . 34 8.2.5 Arrangements for test signals applied to the receiver input . 35 8.2.6 Encoder for receiver measurements . 35 8.2.7 Waiver for receivers . 35 8.2.8 Impedance . 35 8.2.9 Artificial antenna (dummy load) . 35 8.2.10 Facilities for access . 35 8.2.11 Operation of the transmitter . 35 8.2.12 Measurement uncertainties . 36 9 Physical radio tests . 36 9.1 Remark . 36 9.2 General transceiver tests . 36 9.2.1 Transceiver protection test . 36 9.2.2 Transmitter shutdown procedure . 37 9.3 TDMA transmitter . 37 9.3.1 General . 37 9.3.2 Frequency error . 37 9.3.3 Carrier power . 38 9.3.4 Modulation spectrum slotted transmission . 38 9.3.5 Transmitter test sequence and modulation accuracy verification . 39 9.3.6 Transmitter output power versus time function . 40 9.3.7 Intermodulation attenuation . 40 9.4 TDMA receivers . 42 9.4.1 Sensitivity . 42 9.4.2 Error behaviour at high input levels. 42 9.4.3 Co-channel rejection . 43 9.4.4 Adjacent channel selectivity . 44 9.4.5 Spurious response rejection . 44 9.4.6 Intermodulation response rejection . 47 9.4.7 Blocking or desensitisation . 48 9.5 Conducted spurious emissions at the antenna . 49 9.5.1 Spurious emissions from the receiver . 49 9.5.2 Spurious emissions from the transmitter . 49 10 Functional tests for Base Station . 49 10.1 Pre-set-up . 49 10.1.1 Basic initialisation . 49 10.1.2 Pre-setup of dependent base station . 50 10.1.3 Pre-setup for independent mode . 50 10.2 Normal operation . 51 10.2.1 Base Station configuration and services . 51 10.2.2 Addressed and broadcast messaging . 66 10.2.3 Interrogations and interrogation response . 69 10.2.4 Addressed operation . 70 SIST EN 62320-1:2015

– 4 – IEC 62320-1:2015  IEC 2015 10.2.5 Slot phase and frame synchronisation – Base Station operation . 71 10.2.6 Position source . 75 10.2.7 Alarm messages . 76 10.3 Selection of transmission slots . 77 10.3.1 RATDMA Transmission . 77 10.3.2 Intentional slot reuse (link congestion) . 77 10.4 Legacy support . 78 10.4.1 Purpose . 78 10.4.2 Method of measurement . 78 10.4.3 Required results . 79 10.5 TAG Block encapsulation . 79 10.5.1 Application . 79 10.5.2 TAG Block capabilities . 80 10.5.3 Activation of Source identification for output . 80 10.5.4 Activation of Destination identification . 81 10.5.5 Activation of Source identification for input . 82 10.5.6 Use of multiple Source identifications for input . 82 10.5.7 Test of grouping by TAG blocks for output . 83 10.5.8 Test of UNIX time output . 85 10.5.9 Test of Line-count output . 85 10.6 Test of optional functions . 86 10.6.1 Test of external synchronization source . 86 10.6.2 Test of Message 17 based on RTCM 10402 input . 87 Annex A (normative)
AIS Base Station sentences . 88 A.1 General . 88 A.2 ACM – AIS Base Station addressed channel management command . 88 A.3 ADS – Automatic device status . 89 A.4 AGA – AIS Base Station broadcast of a group assignment command . 90 A.5 ASN – AIS Base Station broadcast of assignment command . 92 A.6 BCG – Base Station configuration, general command . 93 A.7 BCL – Base Station configuration, location command . 94 A.8 DLM – Data link management slot allocations for Base Station command . 95 A.9 ECB – Configure broadcast schedules for Base Station messages, command. 97 A.10 FSR – Frame summary of AIS reception . 98 A.11 RST – Equipment Reset Command . 99 A.12 SID – Set an equipment’s identification and command . 100 A.13 SPO – Select AIS device’s processing and output command . 101 A.14 TFR – Transmit feed-back report . 102 A.15 TPC – Transmit slot prohibit command . 103 A.16 TSA – Transmit slot assignment . 104 A.17 TSR – Transmit slot prohibit status report . 105 A.18 VSI – VDL signal information . 106 Annex B (normative)
Legacy AIS Base Station sentences . 107 B.1 Legacy sentences . 107 B.1.1 BCE – Extended general Base Station configuration . 107 B.1.2 BCF – General Base Station configuration . 107 B.1.3 CAB – Control AIS Base Station . 109 B.1.4 TSP – Transmit slot prohibit. 109 B.2 Comment block . 110 SIST EN 62320-1:2015

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B.3 Comment block parameters for AIS . 111 B.3.1 General . 111 B.3.2 Comment block parameter format . 111 B.3.3 Comment block “hexadecimal checksum” (*hh) . 111 B.3.4 Line (either a comment block, or comment block and sentence) . 111 B.3.5 Group (associated lines) . 112 B.3.6 Parameter-code dictionary . 112 B.3.7 Line linking (sentence linking) . 112 B.3.8 Comment block used with query sentences. 113 Annex C (normative)
IEC 61162-1 sentences modified for use with AIS Base Station . 115 C.1 General . 115 C.2 CBR – Configure broadcast rates for AIS AtoN Station message command . 115 C.3 MEB – Message Input for broadcast command . 116 C.4 NAK – Negative acknowledgement. 118 Annex D (normative)
AIS Base Station TAG block sentences . 120 D.1 General . 120 D.2 CPC – Configure parameter-code for UNIX time parameter (c) . 120 D.3 CPD – Configure parameter-code for Destination identification
parameter (d) . 121 D.4 CPG – Configure parameter-code for the sentence-grouping parameter (g) . 121 D.5 CPN – Configure parameter-code for the line-count parameter (n) . 123 D.6 CPS – Configure parameter-code for the Source identification parameter(s) . 125 D.7 TBR – TAG block report request . 125 D.8 TBS – TAG block listener Source identification configuration command . 126 Bibliography . 128
Figure 1 – Functional block diagram of an AIS Base Station . 13 Figure 2 – Functional block diagram dependent and independent operation . 15 Figure 3 – Modulation spectrum for slotted transmission . 20 Figure 4 – Power versus time mask . 20 Figure 5 – General processing diagram. 23 Figure 6 – General processing diagram. 24 Figure 7 – Flow diagram for AIS Base Station response to VDM input . 28 Figure 8 – Format for repeating four-packet cluster . 34 Figure 9 – Measurement arrangement for frequency error . 37 Figure 10 – Measurement arrangement for carrier power . 38 Figure 11 – Measurement arrangement for modulation accuracy . 39 Figure 12 – Measurement arrangement for intermodulation attenuation . 41 Figure 13 – Measurement arrangement for sensitivity . 42 Figure 14 – Measurement arrangement for error behaviour . 42 Figure 15 – Measurement arrangement for co-channel rejection . 43 Figure 16 – Measurement arrangement for adjacent channel selectivity . 44 Figure 17 – PER/BER or SINAD measuring equipment . 45 Figure 18 – Measurement arrangement for inter-modulation . 47 Figure 19 – Measurement arrangement for blocking or de-sensitisation . 48 Figure A.1 – Frame summary timing . 98 SIST EN 62320-1:2015

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Table 1 – Base Station input/output sentence formatters . 16 Table 2 – Required parameter settings for an AIS Base Station . 18 Table 3 – Required settings of physical layer constants . 18 Table 4 – Bandwidth related parameters of the physical layer of the AIS Base Station . 18 Table 5 – Minimum required TDMA transmitter characteristics . 19 Table 6 – Definition of timings for Figure 4 . 20 Table 7 – Minimum TDMA receiver characteristics . 21 Table 8 – Base Station response to input messages from the VDL . 23 Table 9 – Base Station response to input messages from the VDL . 25 Table 10 – Required content of FSR and VSI output . 26 Table 11 – Base Station response to ABM, BBM and AIR input on the PI . 27 Table 12 – BIIT alarm conditions monitored by an AIS Base Station . 30 Table 13 – Settings after reset command . 30 Table 14 – Required TAG block functions . 32 Table 15 – Content of first two packets . 34 Table 16 – Fixed PRS data derived from ITU-T O.153. 35 Table 17 – Maximum values of absolute measurement uncertainties . 36 Table 18 – Frequencies for inter-modulation tests . 48 Table 19 – Calculation of parameters in Message 16 . 63
IEC 62320-1:2015  IEC 2015 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
AUTOMATIC IDENTIFICATION SYSTEM (AIS) –
Part 1: AIS Base Stations –
Minimum operational and performance requirements,
methods of testing and required test results
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 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 62320-1 has been prepared by IEC technical Committee 80: Maritime navigation and radiocommunication equipment and systems. This second edition cancels and replaces the first edition published in 2007 and its Amendment 1:2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: • incorporation of the technical characteristics included in Recommendation ITU-R M.1371-5; • the BCE, BCF and CAB sentences replaced with BCG, BCL and RST; SIST EN 62320-1:2015

– 8 – IEC 62320-1:2015  IEC 2015 • comment blocks replaced with TAG blocks; • scheduled broadcast of Message 26 added; • Message 27 control added; • transmitter intermodulation attenuation harmonised with ITU; • 12,5 kHz channel operation removed; • transmission of Message 24A, Message 25 and Message 26 added; • 90 % channel load test with VSI and TAG blocks enabled added. The text of this standard is based on the following documents: CDV Report on voting 80/736/CDV 80/746/RVC
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. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer.
IEC 62320-1:2015  IEC 2015 – 9 –
INTRODUCTION Chapter V of the International Convention for the Safety of Life at Sea 1974 (SOLAS) requires mandatory carriage of Automatic Identification System (AIS) equipment on all vessels constructed on or after 01 July 2002. Carriage for other types and sizes of SOLAS Convention vessels was required to be completed not later than 31 December 2004. SOLAS Chapter V, Regulation 19, states that AIS shall: a) provide automatically to appropriate equipped shore stations, other ships and aircraft information, including ship's identity, type, position, course, speed, navigational status and other safety-related information; b) receive automatically such information from similarly fitted ships; c) monitor and track ships; and d) exchange data with shore-based facilities. In addition, the IMO performance standards for AIS state that: – The AIS should improve the safety of navigation by assisting in the efficient navigation of ships, protection of the environment, and operation of Vessel Traffic Services (VTS), by satisfying the following functional requirements: 1) in a ship-to-ship mode for collision avoidance; 2) as a means for littoral States to obtain information about a ship and its cargo; and 3) as a VTS tool, i.e. ship-to-shore (traffic management). – The AIS should be capable of providing to ships and to competent authorities, information from the ship, automatically and with the required accuracy and frequency, to facilitate accurate tracking. Transmission of the data should be with the minimum involvement of ship's personnel and with a high level of availability. The provision of Shore Based AIS is necessary to attain the full benefit of the SOLAS Convention requirements. This part of IEC 62320 provides the minimum operational and performance requirements, methods of test and the required test results for AIS Base Stations. The testing is divided into three sections, the transceiver tests, the logical tests and the Presentation Interface tests. These are captured in Clauses 8, 9 and 10 respectively. The method used for testing is that the EUT should meet all the tests requirements of Clause 8 before proceeding to Clause 9. Likewise, the unit should meet all of the test requirements before proceeding to Clause 10. Clause 10 has also been prioritised so that the tests are progressive. Clauses 5 to 7 provide functional requirement information and Clause 8 provides the general test environment for the EUT.
– 10 – IEC 62320-1:2015  IEC 2015 MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
AUTOMATIC IDENTIFICATION SYSTEM (AIS) –
Part 1: AIS Base Stations –
Minimum operational and performance requirements,
methods of testing and required test results
1 Scope This part of IEC 62320 specifies the minimum operational and performance requirements, methods of testing and required test results for AIS Base 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, fixed station AIS equipment, included in recommendation ITU-R M.1371 and IALA Recommendation A-124. 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 standard is applicable for AIS Base Stations. It does not include specifications for the display of AIS data on shore. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61108-1, Maritime navigation and 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 IEC 61162-1:2010, Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 1: Single talker and multiple listeners IEC 61993-2, Maritime navigation and radiocommunication equipment and systems – Automatic identification systems (AIS) – Part 2: Class A shipborne equipment of the automatic identification system (AIS) – Operational and performance requirements, methods of test and required test results IEC 62287-1:2010, 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/AMD1:2013 IEC 62320-2, 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 IMO Resolution MSC.74 (69), Annex 3, Recommendation on performance standards for an universal shipborne automatic identification system (AIS) SIST EN 62320-1:2015

IEC 62320-1:2015  IEC 2015 – 11 –
ITU-R Recommendation M.1084-4, Interim solutions for improved efficiency in the use of the band 156-174 MHz by stations in the maritime mobile service ITU-R Recommendation M.1371, Technical characteristics for an automatic identification system using time division multiple access in the VHF maritime mobile band RTCM 10402 – RTCM Recommended Standards for Differential GNSS (Global Navigation Satellite Systems) Service IALA Recommendation A-124 on Automatic Identification System (AIS). Shore Station and networking aspects relating to the AIS Service 3 Abbreviations AIS Automatic Identification System AtoN Aids to Navigation BER Bit Error Rate BIIT Built-In Integrity Tests BT Bandwidth Time product CommState Communication State NOTE Communication state is defined in Recommendation ITU-R M.1371-4. It is used to indicate whether the AIS is using the message structure for SOTDMA or ITDMA. DGNSS Differential Global Navigation Satellite System EPFS Electronic position fixing system EUT Equipment under test FATDMA Fixed Access Time Division Multiple Access GNSS Global Navigation Satellite System IALA International Association of Marine Aids to Navigation and Lighthouse Authorities IMO International Maritime Organization ITU International Telecommunication Union LFR Limited Frequency Range MAC Medium Access Control MMSI Maritime Mobile Service Identity NM Nautical Mile NRZI Non-Return to Zero Inverted PER Packet Error Rate Pc Carrier Power PI Presentation Interface PPS Pulse Per Second PSS Physical Shore Station RAIM Receiver Autonomous Integrity Monitoring RATDMA Random Access Time Division Multiple Access RSSI Received signal strength indicator Rx Receive SFI Specific Frequency of Interest SIST EN 62320-1:2015

– 12 – IEC 62320-1:2015  IEC 2015 TDMA Time Division Multiple Access Tx Transmit UI Unique Identifier UTC Universal Time Co-ordinated VDL VHF Data Link VSWR Voltage Standing Wave Ratio VTS Vessel Traffic Services 4 Functional layout of an AIS Base Station 4.1 General The Base Station may be designed for dependent only operation or independent operation. Both are under some control of the Physical Shore Station (PSS) as defined in the IALA Recommendation A-124. – dependent Base Station accesses the VHF data link (VDL) using only the combination of linked TSA+VDM sentences (see Table 1), as provided by the PSS. – An independent Base Station accesses the VDL using either the combination of linked TSA+VDM sentences as provided by the PSS or by using internal control. When operated as an independent Base Station the unit may be delegated certain autonomous functionality under the supervisory control of the PSS. The PSS, or external controlling entity, is responsible for Base Station configuration, transmission scheduling, and processing of received information. Presentation Interface (PI) text sentences are used to configure the Base Station, schedule message transmissions, and output information. When TSA a
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