Which device injects an audio tone onto a cable to help locate it with a matching probe?

Which device injects an audio tone onto a cable to help locate it with a matching probe?

• A. Tone Generator
• B. Spectrum Analyzer
• C. Loopback Adapter
• D. LACP

Answer: (A)

When you need to identify a specific cable among many, you want a signal that a detector can hear as you move along the bundle. A tone generator does exactly that: it injects an audio (or audible-frequency) tone onto the conductor so a matching tone probe or tracer can detect the tone and follow the path to the correct cable. This method lets you isolate one cable without guessing or pulling on wires. Other tools serve different purposes. A spectrum analyzer looks at the frequency content of signals, not at locating physical cables. A loopback adapter is used to test network ports by looping transmitted data back to the receiver. LACP is about combining multiple network links for greater throughput and redundancy, not about locating cables.

When you need to identify a specific cable among many, you want a signal that a detector can hear as you move along the bundle. A tone generator does exactly that: it injects an audio (or audible-frequency) tone onto the conductor so a matching tone probe or tracer can detect the tone and follow the path to the correct cable. This method lets you isolate one cable without guessing or pulling on wires.

Other tools serve different purposes. A spectrum analyzer looks at the frequency content of signals, not at locating physical cables. A loopback adapter is used to test network ports by looping transmitted data back to the receiver. LACP is about combining multiple network links for greater throughput and redundancy, not about locating cables.