Open and short fault detector for a differential interface

Details Open and short fault detector for a differential interface Open and short fault detector for a differential interface

1994-05-31

1996-01-30

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324540, 324625, 324627, 371 251, 327 74, G01R 3102

Patent

active

054883067

ABSTRACT:
An improved cable fault detection system which makes the fault detection independent of the ground shift between units coupled to the interface. This fault detection is based on differentially sensing the voltage on a wire pair, in a cable, and using the differential voltage applied to the wires to make a decision as to whether or not the cable is faulted. The disclosed differential sensing and fault checking scheme reviews both data states thus making the fault detection independent of the ground shift between machines on the interface and this is accomplished without reducing the load impedance presented to the cable by the differential receiver coupled thereto.

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patent: 5229725 (1993-07-01), Spaeder

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