Annunciator system with direct field wiring

Details Annunciator system with direct field wiring Annunciator system with direct field wiring

1974-12-17

1977-01-04

Smith, Jr., David

Communications: electrical

Digital comparator systems

317101DH, 339198R, G08C 900

Patent

active

040017974

ABSTRACT:
An annunciator or similar system includes a plurality of field terminal blocks whose terminals are connected to the field wiring, the field terminal blocks removably fitting within handle terminal blocks. The handle terminal blocks are fixed to module circuit boards which removably fit in an elongated channel member and have along one of their edges a set of contact areas which make contact with terminals fixed on the bottom wall of the channel member. The terminals of the field terminal block are angled relative to the bottom of the block and are parallel to one another.

REFERENCES:
patent: 2735994 (1956-02-01), Obszarny
patent: 3375408 (1968-03-01), Buhrendorf et al.
patent: 3573558 (1971-04-01), Babcock
patent: 3766550 (1973-10-01), Vendermore et al.

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