Cable checker utilizing logic circuitry

Details Cable checker utilizing logic circuitry Cable checker utilizing logic circuitry

G - Physics

01

R

324/58.2

G01R 31/02 (2006.01)

Patent

CA 1193323

ABSTRACT OF THE DISCLOSURE A cable checker employs a pair of jacks mounted to a housing and operably associated with an electronic circuit employing a pair of digital logic integrated circuits for both the confirmation and clocking circuitry. In this respect, the integrated circuits comprise a plurality of NAND gates which drive a pair of light emitting diodes, one of which is red to indicate an improperly functioning cable and the other one of which is green to indicate a properly functioning cable. The cable checker further includes an astable multivibrator circuit so as to cause the light emitting diodes to blink thus to save battery power, and the checking of a cable is accomplished simply by plugging the two ends of the cable into the respective jacks asso- ciated with the cable checker.

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