The Incredible Growth of Aeronautical Telecommunication Industry 2021

 The Aeronautical Telecommunication Network(ATN) is an internetwork architecture that allows ground/ground, air/ground, and avionic data subnetworks to interoperate by adopting common interface services and protocols based on the ISO OSI Reference Model.

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The European part of ATN used for ground/ground communications is represented by PENS.

A telecommunications network is a group of nodes interconnected by links that are used to exchange messages between the nodes. The links may use a variety of technologies based on the methodologies of circuit switching, message switching, or packet switching, to pass messages and signals.