CompTIA Security+ Exam Notes

CompTIA Security+ Exam Notes
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Friday, October 18, 2024

Mastering Cable Tracing: The Role of Toner and Probe Devices

 Toner and Probe

A toner and probe are handheld devices that trace and identify electrical systems, telecommunications, and networking cables. The two devices are:

Tone generator

A portable device that emits a signal or audible tone onto a specific wire or cable

Probe

A portable device that detects the signal or tone produced by the tone generator

A toner and probe is used to:

  • Trace the cable from the wall plate to the port on the patch panel.
  • Trace and identify wires or cables in a bundle or group without damaging cable insulation

A toner and probe effectively trace electrical cables hidden in building walls, floors, and ceilings. The tester sends an electrical pulse that bounces back when it reaches a cable. The device then picks up these pulses and displays them on its screen.

Applications

  • Telecommunications: Identifying and tracing individual wires within a cable.
  • Networking: Tracing Ethernet cables in a LAN setup.
  • Cable TV and Audio Systems: Identifying and tracing coaxial cables.


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