WARNING DEVICE Russian patent published in 1997 - IPC

Abstract RU 2090936 C1

FIELD: burglar alarms and warning systems indicating condition of equipment remote from control center. SUBSTANCE: warning device that has control unit, subscribers' units, two-wire communication line, and sensors is provided, in addition, with reset pulse selector, synchronizing pulse shaper, and negative current pulse shaper all inserted in each subscriber's unit. EFFECT: improved rate of sensors interrogation at any number of subscriber's units which raises reliability of serviceability check of sensors. 3 dwg

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RU 2 090 936 C1

Authors

Rodin Sergej Gennad'Evich[Ua]

Dates

1997-09-20—Published

1994-12-28—Filed