| 摘要 |
communication equipment. SUBSTANCE: device provides manual or automatic switching of double module, which generates control signals and switching signals by means of logical combination circuits and relays. Said device for commutation of double unit to first and second units has button switch, which is designed for setting switch mode, and unit selection button switch, manual switching unit, which is designed for selective generation of first control signal, which provides commutation to first unit, and second control signal, which provides commutation to second unit. In addition device has automatic switching unit, which provides selective generation of first and second state signals. Said first and second state signals are generated from first and second units. Selector of switching mode provides selective output of output signals of manual switching unit and automatic switching unit depending on mode, which is set by button mode switch. Control selection unit is designed for establishing communication channel to first and second unit in response to first and second control signals from switching mode selection circuit. EFFECT: possibility of automatic commutation of double unit in response to switching request signals from first and second units. 3 cl, 16 dwg, 4 tbl
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