Тон-генератор

The instrument is designed to identify and trace wires or cables within a group without damaging the insulation. For telephone l 1. Judge continuity of the cables or wires. 2. Track the cables or wires, and diagnose the break point. 3. Receive the tone signal on the cables or wires(telephone line) 4.lndentify the state in the working telephone line(clear, ring, busy) 5. Send a single solid tone or a dual alternating tone to the object cables or wires.