Alarm system backup with cut line detector
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United States of America Patent
Stats
-
Apr 7, 1998
Grant Date -
N/A
app pub date -
Sep 6, 1995
filing date -
Sep 6, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security system backup device which provides a system that recognizes when an outdoor telephone line near the building has been severed and provides a means by which a distress message can be sent over the operable part of the outdoor telephone lines. The system utilizes a signal generator connected to a phone line inside of the building and a signal detector connected to the outdoor phone line outside of the building in a discreet and hard to reach location. When the signal no longer appears on the line, a telephonic calling unit, which is located with the signal detector, places a distress call.
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