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Time-Division Multiplexing
  • A method of deriving two or more apparently simultaneous channels from a given frequency spectrum of a transmission medium connecting two or more points by assigning discrete time intervals in sequence to each of the individual channels. During a given time interval the entire available frequency spectrum can be used by the channel to which it is assigned. Note: In general, time-division multiplexing systems use pulse transmission. The multiplex pulse train may be considered to be the interleaved pulse trains of the individual channels. The individual channel pulses may be modulated either in an analog or a digital manner. See also asynchronous time-division multiplexing, channelization, concentrator, digit time slot, frequency-derived channel, frequency-division multiplexing, highway, multiplex aggregate bit rate, multiplex hierarchy, multiplexing, synchronous TDM, time-sharing.