Loop test circuit

Details Loop test circuit Loop test circuit

H - Electricity

04

M

379/2

H04M 3/26 (2006.01) G01R 19/165 (2006.01) H04M 3/30 (2006.01)

Patent

CA 1197639

LOOP TEST CIRCUIT Abstract of the Disclosure A test circuit for testing tip and ring conditions of a loop circuit has three test links which exclusively turn on one of a plurality of light emitters to indicate a normal loop current, low current or polarity reversal condition. The circuit is energized by current within the loop and is mounted within an easily portable and manipulable body. - i -

438156

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