Remote alarm monitoring and circuit control system

Details Remote alarm monitoring and circuit control system Remote alarm monitoring and circuit control system

1975-08-08

1977-06-28

Waring, Alvin H.

Communications: electrical

Systems

Call station

340324R, 340409, 340416, 179 5R, G08B 1900

Patent

active

040329070

ABSTRACT:
A remote alarm monitoring and control circuit control system for centralized monitoring of areas remote from the monitoring location. The system comprises a centrally located monitoring board connected via conventional phone lines to a plurality of remotely located control boxes each in turn being connected to a number of individual sensor inputs. Each of the control boxes is capable of sending two different and distinguishable signals via one telephone line connected to the monitoring board. Further, the system at the remotely located control boxes can be reset from the monitoring board without the need for gaining entry to the location where the remotely located control box is placed.

REFERENCES:
patent: 3099824 (1963-07-01), Vitt et al.
patent: 3305850 (1967-02-01), Suozzo et al.
patent: 3437759 (1969-04-01), McKinzie

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