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Multiplexer-adapter MA-01 (hereinafter referred to as the product or MA-01) is designed to connect three sets of remote EF (microphones) to one input of loudspeaker warning equipment, such as AGO "RIKOM"-06 (hereinafter referred to as AGO), which is intended for connection of dispatcher consoles PD-09 or PD-03. The product is designed for operation in metro premises. In terms of resistance to climatic factors during operation the product corresponds to classification group K1 according to OST 32.146-2000, but for operation at temperatures ranging from +5 deg. C to +50 deg. C, without frost and dew. MA-01 consists of a unit and a cable for connection to terminal blocks in SHK-15. Main technical characteristics: Power supply voltage from AGO in the range from 18 to 26V. The number of inputs for connection of AC - up to 3, the output of sound signal - one, it is connected to one of the inputs of AGO, designed for connection of the dispatcher's console. The control of switching of sound signals from CB is made by means of ta...