Interrogation and monitoring system

Details Interrogation and monitoring system Interrogation and monitoring system

1976-08-02

1977-08-09

Atkinson, Charles E.

Communications: electrical

Digital comparator systems

3402131, 340408, G06F 1100, G08B 2900

Patent

active

040414558

ABSTRACT:
A monitoring system for monitoring individual modules includes a central station and a plurality of remote modules connected to said central station by a data channel. Each remote module includes a switch responsive to a fault condition for connecting a passive circuit to said data channel. The central station supplies a monitor signal to which the passive circuit is responsive to supply a fault signal. The central station includes a monitor responsive to the fault signal for impressing an interrogation signal onto the data channel to which the passive circuit is responsive to supply a coded signal indicative of the particular module responding to the fault condition.

REFERENCES:
patent: 3245066 (1966-04-01), Mattlet
patent: 3670303 (1972-06-01), Dame
patent: 3859624 (1975-01-01), Kriofsky et al.

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