communication system definition communications
A system or facility for transfering data between persons and equipment. The system usually consists of a collection of individual communication networks
, transmission systems, relay stations, tributary stations and terminal
equipment capable of interconnection and interoperation so as to form an integrated whole. These individual components must serve a common purpose, be technically compatible, employ common procedures, respond to some form of control and generally operate in unison.
["Communications Standard Dictionary", 2nd Edition, Martin H. Weik].