FIELD: electric communication. SUBSTANCE: device to test and control information sources has r control and signalling units 1...1r, analyzer 2 of unmultiplexed signals, q formers 3.1...3q of multiplexed signal, n channel selectors 4.1...4.n, n signal conversion units 5.1...5.n. EFFECT: improved operational stability of device. 2 dwg
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Authors
Dates
1995-05-10—Published
1991-04-16—Filed