Zero-loss automatic polarization protection device

Details Zero-loss automatic polarization protection device Zero-loss automatic polarization protection device

1980-11-18

1983-02-15

Rubinson, G. Z.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

179 77, 307127, 361246, H04M 100

Patent

active

043743064

ABSTRACT:
A device for automatically protecting telecommunication apparatus against input signals of improper polarity. The device does not use any energy or voltage after polarity match is established, so that use of the device does not degrade the incoming signal. A set of relay contacts, controlled by diodes, assures that the signal applied to the load is of proper polarity. There is no voltage drop between the exchange line incoming cable and the load.

REFERENCES:
patent: B472284 (1976-01-01), Janssen et al.
patent: 3413487 (1968-11-01), Gershen
patent: 3789803 (1974-02-01), Davis et al.
patent: 4027223 (1977-05-01), Renz

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