Multiconductor telephone cable test apparatus

Claim 1

A test apparatus for providing a visual indication of the existence of various electrical fault conditions in a multiconductor electrical cable assembly comprising: (a) a first plurality of LEDs energizable to provide output of one color; (b) a second plurality of LEDs energizable to provide output of other color different from said one color; (c) non-LEDs, each connected in parallel with a distinct one of said LEDs of said first and second pluralities and in reverse polarity therewith; (d) circuit means for individually sequentially applying voltage to said LEDs to provide such visual indication through said LEDs of the existence of said various fault conditions; and (e) connector means for releasable connecton with said cable assembly and in electrical connection with said LEDs, said first plurality LEDs and said second plurality LEDs being unenergized upon such voltage application thereto to indicate a first such fault condition, said first plurality LEDs and said second plurality LEDs being sequentially energized upon such voltage application thereto to indicate a second such fault condition, and an exclusive one plurality of said first plurality LEDs and said second plurality LEDs being sequentially energized upon such voltage application thereto to indicate a third such fault condition, said non-LEDs conducting current therethrough selectively in the course of such energization of said first plurality LEDs and said second plurality LEDs.