Circuits provide input/output module connections having the inpu

Details Circuits provide input/output module connections having the inpu Circuits provide input/output module connections having the inpu

1995-10-10

1998-03-03

Dung, Dinh C.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

395821, 395832, 395893, 361636, 361640, G06F 1300

Patent

active

057246149

ABSTRACT:
A digital input/output circuit board includes a plurality of circuits each having an input module and an output module for mounting either an input module or an output module, wiring terminals for attaching field wires to electrically connect the circuit board to field devices, a hot wiring terminal for attaching a hot power wire, and a neutral wiring terminal for attaching a neutral power wire. A computer connected to the circuit board receives input signals indicating the state of the field devices and sends output signals to activate other field devices.

REFERENCES:
patent: 3942077 (1976-03-01), Powers
patent: 4215386 (1980-07-01), Prager et al.
patent: 4247882 (1981-01-01), Prager et al.
patent: 4477862 (1984-10-01), Gonzales
patent: 4558914 (1985-12-01), Prager et al.

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