User's Guide Wire Tracer Probe and Transmitter Model TG20
Introduction Congratulations on your purchase of Extech’s Model TG20. This tone generator and amplifier probe set is used to quickly trace and identify cables or wires within a group and also check the operation of phone lines. With proper use and care, this meter will provide many years of reliable service. Meter Description 1. 2. 3. 4. 5. 6.
Identifying telephone cable Tip and Ring – Using Alligator Clips 1. 2. 3. 4. 5. 6. Switch the transmitter to the OFF position Connect the BLACK clip to ground Connect the RED clip to a line. The LED color identifies the line. GREEN indicates the Ring line, RED indicates the Tip line. If both RED and GREEN light up, AC voltage is present (do not exceed 24V) Identifying telephone cable Line Condition 1. 2. 3.
