Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 26, 2008
Patent Application Number
10754574
Date Filed
January 12, 2004
Patent Primary Examiner
Patent abstract
A security system for controlling access to an enclosed conduit along which runs fiber optic cable, the conduit having a cover for access to the cable, the system having a communications receiver and a modulator responsive to an output of the receiver for coupling non-intrusively to the fiber optic cable adjacent the cover, the communications receiver being responsive to the presence or absence of an access authorization signal from an operator to cause the modulator to introduce a signal to the fiber optic cable indicative of the authorization status.
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