Continuity test set with voice communication
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United States of America Patent
Stats
-
Jun 12, 1990
Grant Date -
N/A
app pub date -
Sep 18, 1989
filing date -
Sep 18, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
First and second telephone handsets or headsets are used to form a continuity test set providing voice communication. The telephone handsets are modified to connect the transmitter and receiver elements in series with test leads and current-limiting resistors. Connectors are provided at the ends of the test leads, and one of said handsets is provided with a battery to establish a loop current. LEDs are disposed in selected test leads to provide a visual indication of the flow of loop current, which is established when the connectors are attached to common conductors at the remote ends of a multi-conductor cable or conduit.
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Family
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Cited Art Landscape
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