The AMSS is the central element in an NMC computerised data handling system. Its main function is to automatically receive, check transmission errors, temporarily store and transmit different types of meteorological data and products. The technical details of NMCs AMSS are to be found at paragraph 5.1.

The module should be capable of receiving meteorological data and products in a variety of forms, text messages, binary and satellite and radar, and receive it through different types of connections: satellite-based as well as terrestrial-based as explained above. Additional to these, the sub-system should be able to accept data and products from a locally attached keyboard, scanner and a secondary input device such as a diskette.

The module should be programmable to transmit data/products of a selected type to:

• the DBMS module.
• appropriate links such as through telegraphic and telephone lines and through data lines that use the X.25 and IP protocols which are connected to neighbouring NMCS, National Airports and other remote users.