Perimeter surveillance system with sectional inhibition

Details Perimeter surveillance system with sectional inhibition Perimeter surveillance system with sectional inhibition

1987-03-27

1989-01-03

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340506, 340541, G08B 1322

Patent

active

047960124

ABSTRACT:
An improved perimeter surveillance system employs multiple intrusion sensors distributed in the field and amplifiers associated therewith. Apparatus is provided for selectably inhibiting an alarm indication from a given sensor in response to electromagnetic interference detected thereat without necessarily inhibiting the operation of alarm indications from other sensors.

REFERENCES:
patent: Re32468 (1987-08-01), Le Nay et al.

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