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IEC 62287-2

2nd Edition, February 1, 2017

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Maritime navigation and radiocommunication equipment and systems – Class B shipborne equipment of the automatic identification system (AIS) – Part 2: Self-organising time division multiple access (SOTDMA) techniques

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Description / Abstract:

This part of IEC 62287 specifies operational and performance requirements, methods of testing and required test results for Class B "SO" shipborne automatic identifications system (AIS) equipment using self-organising time division multiple access (SOTDMA) techniques as described in Recommendation ITU-R M.1371. This document takes into account other associated IEC International Standards and existing national standards, as applicable.

The main differences between Class B "CS" (IEC 62287-1) and Class B "SO" units are that the Class B "SO"

• covers all 25 kHz channels listed in Recommendation ITU-R M.1084-5,

• only uses the internal GNSS – no position sensor input is allowed,

• requires use of VDL Message 17 for correction of the internal GNSS,

• requires a presentation interface,

• has additional reporting intervals, down to 5 s,

• has two power settings, with a high level of 5 W, and

• has the capability to transmit binary messages.

This document is applicable for AIS equipment used on craft that are not covered by a mandatory carriage requirement of AIS under SOLAS Chapter V.