Electricity: measuring and testing – Conductor identification or location
Patent
1992-07-28
1995-05-09
Snow, Walter E.
Electricity: measuring and testing
Conductor identification or location
324539, G01R 3102
Patent
active
054143438
ABSTRACT:
A micro-processor controlled apparatus for testing a network cabling. The apparatus is permanently installed at the network cabling site. The micro-processor controls a driver which sequentially provides a voltage carrying current to the individual conductors of each cable in the network. In this manner each conductor of each cable is tested. Hard-wiring and a shorting bar which disengages upon installation of a terminal apparatus provide the voltage carrying current with at least one current path at a remote network port. The voltage carrying current is returned from the remote network port on at least one conductor coupled to a receiver. The receiver samples a plurality of conductors, preferably for evidence of the voltage. In this manner, the receiver samples for the parallel return of a digital word. If the returned digital word agrees with an expected digital word stored in the memory of the micro-processor, an indicating device will signal proper wiring of the tested cable. If the returned digital word does not agree with an expected digital word, the indicating device will signal improper wiring of the tested cable.
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ADC Telecommunications, Patch Switch Assemblies, 1987, USA.
Ashbaugh James P.
Flaherty Samuel J.
Flaherty Samuel J.
Snow Walter E.
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