Amendment 2 - Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results

Amendement 2 - Système mondial de détresse et de sécurité en mer (SMDSM) - Partie 4: Stations terriennes de navire INMARSAT de type C et matériel INMARSAT d'appel de groupe amélioré (AGA) – Exigences opérationnelles et de fonctionnement, méthodes d'essai et résultats exigibles

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Published
Publication Date
26-Jun-2019
Current Stage
PPUB - Publication issued
Completion Date
27-Jun-2019
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IEC 61097-4:2012/AMD2:2019 - Amendment 2 - Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results
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IEC 61097-4
Edition 3.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Global maritime distress and safety system (GMDSS) –
Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC)
equipment – Operational and performance requirements, methods of testing
and required test results
Système mondial de détresse et de sécurité en mer (SMDSM) –
Partie 4: Stations terriennes de navire INMARSAT de type C et matériel
INMARSAT d'appel de groupe amélioré (AGA) – Exigences opérationnelles
et de fonctionnement, méthodes d'essai et résultats exigibles
IEC 61097-4:2012-05/AMD2:2019-06(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61097-4
Edition 3.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Global maritime distress and safety system (GMDSS) –
Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC)
equipment – Operational and performance requirements, methods of testing
and required test results
Système mondial de détresse et de sécurité en mer (SMDSM) –
Partie 4: Stations terriennes de navire INMARSAT de type C et matériel
INMARSAT d'appel de groupe amélioré (AGA) – Exigences opérationnelles
et de fonctionnement, méthodes d'essai et résultats exigibles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-7044-8

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61097-4:2012/AMD2:2019
© IEC 2019
FOREWORD

This amendment has been prepared by IEC technical committee 80: Maritime navigation and

radiocommunication equipment and systems.
The text of this amendment is based on the following documents:
FDIS Report on voting
80/926/FDIS 80/929/RVD

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability 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.
_____________
INTRODUCTION to Amendment 2

NOTE This amendment adds a requirement for an interface for alert management and removes the requirement to

produce a printed copy of received safety information providing there is an interface to other navigation display

equipment. This results from amendments to the performance standards for enhanced group call equipment agreed

by the International Maritime Organization in resolution MSC.431(98) in 2017. It can be noted that the technical

provisions for the interface for the transfer of received data to other navigation display equipment were included in

IEC 61097-4:2012/AMD1:2016.
2 Normative references
Add the following new references:

IEC 62923-1, Maritime navigation and radiocommunication equipment and systems – Bridge

alert management – Part 1: Operational and performance requirements, methods of testing

and required test results

IEC 62923-2, Maritime navigation and radiocommunication equipment and systems – Bridge

alert management – Part 2: Alert and cluster identifiers and other additional features

IMO Resolution MSC.302(87) (2010), Performance standards for bridge alert management

---------------------- Page: 4 ----------------------
IEC 61097-4:2012/AMD2:2019 – 3 –
© IEC 2019
3 Performance requirements
3.4.2 General
(See 5.4.2)
Replace the second paragraph with the following:

(MSC.306(87) A1.3): Alternatively to the requirement in paragraph MSC.306(87) A1.2, the

equipment need not provide means to produce a printed copy of received information if it is

installed in combination with an interface connecting it to navigation equipment that is

compliant with resolution MSC 252(83), as amended, on Revised Performance standards for

integrated navigation systems (INS). Provisions for interconnection to a shipborne integrated

radiocommunication system (IRCS) when used in the GMDSS (resolution A.811(19)) shall

also be included.

If no means are provided by the equipment to produce a printed copy of received information

then the manufacturer’s documentation shall clearly describe that the equipment can only be

used when connected to an equipment enabled for the display of enhanced group calls in

compliance with the applicable IEC 61924-2 requirements.

NOTE The testing standard for compliance with INS (Resolution MSC 252(83)) is IEC 61924-2. The testing

standard for compliance with IRCS (Resolution A.811(19)) is IEC 62940.

(MSC.306(87) A1.4): The enhanced group call installation may be either separate or

combined with other installations. Elements of other installations, e.g. the antenna, low noise

amplifier and down converter of the ship earth system, may be shared for the reception of

enhanced group call messages.
4 Technical characteristics
4.4 Interfaces
Replace the existing text, modified by Amendment 1, with the following:
(See 5.8.3)

(MSC.306(87) A6.3): All interfaces provided for communication with other navigation or

communication equipment shall comply with IEC standards 61162.

(MSC.306(87) A6.1): The equipment shall include at least one interface for the transfer of

received data to other navigation display or integrated communications equipment.

The equipment shall be provided with a data interface capable of transmitting the sentences

SM1, SM2, SM3, SM4 and SMB according to IEC 61162-1.

(MSC.306(87) A6.2): The equipment shall include an interface for alert management in

accordance with resolution MSC.302(87) on Performance standards for bridge alert
management.

In addition to the sentences previously mentioned, the equipment shall be capable of

communicating with the sentences ACN, ALC, ALF, ARC and HBT according to IEC 61162-1.

The equipment shall be capable of classifying, handling, displaying and reporting alerts as

required in IEC 62923-1 and IEC 62923-2. In the BAM concept, the EGC receiver acts as an

alert source.
---------------------- Page: 5 ----------------------
– 4 – IEC 61097-4:2012/AMD2:2019
© IEC 2019

The equipment shall be capable of releasing an alert with priority Warning and Category A

with alert identifier 3122 on receipt of a distress or urgency priority EGC message.

NOTE 1 Warning is a short audible announcement repeated up to every 5 min until acknowledged by the

operator, “Category A” refers to when acknowledgement is only possible at the source, “Alert identifier 3122”

indicates a message received warning.

The alert title for the first ALF sentence for a distress priority EGC message (C = 3) shall be

“Distress RX”. The additional information in the second ALF sentence shall be “Incoming

distress. Check Inmarsat display”.

The alert title for the first ALF sentence for an urgency priority EGC message (C = 2) shall be

“Urgency RX”. The additional information in the second ALF sentence shall be “Incoming

urgency warning. Check Inmarsat C display”.

NOTE 2 The priority codes (C ) are described in the IMO International SafetyNET Manual.

The alert, if not acknowledged, shall be repeated as a warning after a limited time period no

...

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