Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent
1985-05-21
1987-04-07
George, Keith E.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
379 49, 379 51, H04M 1104, H04M 124
Patent
active
046563199
ABSTRACT:
A novel alarm system tester is disclosed for use in verifying the operation of subscriber stations in an alarm system of a type having a central monitoring station and a plurality of subscriber stations operative to automatically dial the telephone number of the central monitoring station and to report the occurrence of an alarm event to the central monitoring station. The tester in accordance with the present invention permits the verification of the automatic dialing function of the subscriber station and additionally, provides for verification that the subscriber station can transmit messages to the central monitoring station in accordance with a defined communication protocol. The entire test sequence is completed in a single telephone communication.
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George Keith E.
Lifeline Systems Inc.
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