ACR Electronics Nauticast Y1-03-0204 Installation Manual

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Contents

Installation Manual 1 Y1-03-0204 Rev.K1 General IntroductionIMPORTANT: IMO REGULATIONS MANDATE that after the physical installationhas been successfully completed, all ships data and settings be entered into the AIStransponder. See Section 4 for further instructions.1.1 Description of AISWhat does the abbreviation AIS stand for?AIS stands for: “Automatic Identification System”What is AIS?According to IALA regulations, AIS is defined as follows:Very simply, the AIS is a broadcast Transponder system, operating in the VHF maritimemobile Band. It is capable of sending ship information such as identification, positioncourse, speed and more, to other ships and to shore. It can handle multiple reports atrapid update rates and uses Self-Organizing Time Division Multiple Access (SOTDMA)technology to meet these high broadcast rates and ensure reliable and robust ship to shipoperation.What are the performance standards of AIS?The IMO defines the performance standards as follows:- Ship to Ship working- Ship to Shore working, including Long Range Application- Automatic and continuous operation- Provision of information messaging- Utilization of maritime VHF channelsWhich modules make up an AIS-Transponder?The Modules:- DGPS / GPS receiver- VHF Radio- Antenna- Computer (CPU)- Power SupplyAppropriate application software connects the individual modules.In which modes does AIS function?AIS are required to function flawlessly in a variety of modes. The relevant regulations require:The system shall be capable of- An "autonomous and continuous" mode for operation in all areas. This modeshall be capable of being switched to/from one of the following alternate modes bya competent authority;- An "assigned" mode for operation in an area subject to a competent authorityresponsible for traffic monitoring such that the data transmission interval and/ortime slots may be set remotely by that authority;- A "polling or controlled" mode, where the data transfer occurs in response tointerrogation from a ship or competent authority.