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time compressing multiplexing (TCM)

Time Compressing Multiplexing (TCM) refers to a method for data transmission over two-wire ISDN lines. The method, also known as ping-pong, works in such a way that, for example, a 162 kbit/s data stream is transmitted at at least twice the rate (i.e. 324 kbit/s) first in one direction, then in the opposite direction. So although it is a half-duplex operation, this scheme acts on the user like a full-duplex 162 kbit/s system.

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Englisch: time compressing multiplexing - TCM
Updated at: 01.04.2008
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Translations: DE