IEC 61097-10:1999 pdf download.Global maritime distress and safety system (GMDSS) – Part 10: Inmarsat-B ship earth station equipment – Operational and performance requirements, methods of testing and required test results
1 Scope
This part of IEC 61 097 specifies the minimum operational and performance requirements, technical characteristics, methods of testing and required test results for Inmarsat-B maritime class 1 ship earth stations (SES), capable of transmitting and receiving distress and safety communications using telephony and direct-printing telegraphy, as required by regulation IV / 1 0.1 and 1 4.1 of the 1 988 amendments to the 1 974 International Convention for the Safety of Life at Sea (SOLAS), for use in the GMDSS. In order to meet the carriage requirements of the GMDSS in respect of receipt of SafetyNET broadcasts, it is necessary to install an additional EGC receiver or a combined Inmarsat- C/EGC receiver. This standard takes account of IMO Resolution A.694, to which IEC 60945 is associated. When a requirement in this standard is different from IEC 60945, the requirement in this standard takes precedence. This standard incorporates the performance standards of IMO Resolution A.808. It also incorporates the relevant ITU Radio regulations. This standard does not incorporate the Inmarsat system requirements needed for Inmarsat type approval. For these, the latest edition of the Inmarsat-B system definition manual (SDM) shall be consulted. When a requirement in this standard is different from one in the Inmarsat-B SDM, reference shall be made to the most recent IMO and ITU applicable documents to resolve the difficulty. NOTE – All text of this standard, the wording of which is identical to that in the IMO SOLAS Convention 1 974 as amended and IMO Resolution A.808, is printed in italics and it is followed by the resolution or recommendation and paragraph number indicated between brackets.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61 097. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 61 097 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60945:1 996, Maritime navigation and radiocommunication equipment and systems –
General requirements – Methods of testing and required test results
IEC 61 1 62-1 :1 995, Maritime navigation and radiocommunication equipment and systems –
Digital interfaces – Part 1 : Single talker and multiple listeners
IMO International Convention for the Safety of Life at Sea (SOLAS) 1 974, as amended
4 General and operational requirements
4.1 General
This clause includes the requirements taken from SOLAS and IMO Resolutions A.808 and
A.694 for which no repeatable or verifiable test can be specified or for which the test is limited
to the verification of documentation presented by the manufacturer. It contains all operational
tests, particularly those involving subjective judgement and which shall be conducted by
qualified personnel. The requirements listed in this clause are in addition to the relevant
operational requirements of IEC 60945.
4.2 General requirements
4.2.1 (SOLAS IV/1 0.1 .1 )
An Immarsat ship earth station which is defined in the Inmarsat-B
SDM as a maritime class 1 SES shall be capable of:
. 1 transmitting and receiving distress and safety communications using direct-printing telegraphy;
.2 initiating and receiving distress priority calls;
.3 maintaining watch for shore-to-ship distress alerts, including those directed to specifically defined geographical areas. This requirement should normally be met by provision of an EGC receiver;
.4 transmitting and receiving general radio communications, using either radiotelephony or
direct-printing telegraphy.
Annex C contains the anticipated availability of the watch-keeping capabilities for an Inmarsat-B SES.
4.2.2 (A.808/A.2)
The equipment shall be type approved by Inmarsat and shall comply with the environmental conditions specified in its technical requirements for Inmarsat ship earth stations capable of two-way communications.
4.2.3 (A.808/A.1 )
The ship earth station installation capable of telephony and direct printing shall comply with the applicable general requirements set out in IMO resolution A.694 (1 7) as detailed in IEC 60945, except as follows:
4.2.3.1 The equipment shall indicate the status of the distress alert transmission (4.2.9 of
IEC 60945).
IEC 61097-10:1999 pdf download
