G - Physics – 01 – R
Patent
G - Physics
01
R
324/58.01
G01R 31/02 (2006.01)
Patent
CA 2015724
ABSTRACT A control circuit for a cable tester having a computer interface and a cable adaptor comprising; a current source having inputs from said computer interface and outputs to a first group of solid state switches; said first group of solid state switches having inputs from said current source and the computer interface and having outputs to an input of the cable adapter; a second group of solid state switches having inputs from said first group of solid state switches and said computer interface and having outputs to a first amplifier means; a third group of solid state switches having inputs from a fourth group of solid state switches and the computer interface and having outputs to said first amplifier means; and said fourth group of switches having inputs from an output of the cable adapter and the computer interface and having an output to ground; and said first amplifier means having an output to said computer interface; whereby when a cable is, having at least a conductor therein, connected to the cable adaptor the computer interface is operative to selectively activate the current source and close each of the related switches in the first, second, third and fourth groups of solid state switches thereby causing a current to flow through a selected conductor in the cable under test and hence providing the computer interface with an output from said first amplifier means.
Aspila Kalevi P.
Boivin Nicole Louise
Minister Of National Defence
LandOfFree
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