Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1998-02-26
1999-06-22
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
With particular system function
340539, 34087001, 34087003, G08B 1900, G08C 1916
Patent
active
059146567
ABSTRACT:
A transmitter interface board for integration with a conventional environmental condition detector (such as a smoke detector, carbon monoxide detector etc.), for transmitting information on the operating status of the detector to a remotely located monitoring facility. The transmitter interface is connected to a detector circuit in the condition detector in a manner such that the interface can detect alarm pulses emitted from the detector. Based on the number of alarm pulses emitted in a pre-defined interval the transmitter interface is able to determine the operating status of the detector. The operating status information is then be sent by a transmitter to the central monitoring facility.
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Ojala Roy
Whittaker Rick G.
Hofsass Jeffery A.
NEXSYS Comtech International, Inc.
Trieu Van T.
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