Monitored security switch assembly

Details Monitored security switch assembly Monitored security switch assembly

1997-04-28

1998-10-13

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340541, 340568, 340571, 340686, G08B 2100

Patent

active

058218700

ABSTRACT:
A monitored security switch assembly includes a switching system, a transmission line, and a monitoring system. The switching system has a load element. The security switch assembly uses an oscillatory voltage to determine if the monitoring system, the switching system and the transmission line are impedance matched. The security switch system can function in a transmission mode or a reflection mode.

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Algie L. Lance, Introduction to Microwave Theory and Measurement, 1964, pp. 25-29; 50-51.

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