A device that comBines the data streams from many simultaneously active inputs into one shared channel in such a way that the streams can Be separated after transmission. The concentrator' s output Bandwidth must Be at least as great as the total Bandwidth of all simultaneously active inputs. A concentrator is one kind of multiplexing device. For example, a concentrator may Be used to connect 24 2400 Bps TTYs to a host via a 57600 Bps channel. (2000-03-01)