A network technician is installing a new VoIP phone at a user's desk. The technician must trace an unlabeled UTP cable run from the office wall jack back to its corresponding port on the patch panel in the equipment closet. Once identified, the technician must also confirm that the switch port is actively supplying electrical power over the ethernet wiring to power the phone. Which TWO of the following tools should the technician use to accomplish these tasks? (Select TWO.)
- Tone generator and probeAnswer
- PoE testerAnswer
- COptical Time-Domain Reflectometer (OTDR)
- DPacket analyzer
Answer
The correct tools to select are the tone generator and probe (to trace the physical cable path from the desk wall jack to the patch panel) and the PoE tester (to detect and verify electric power delivery on the twisted-pair switch port).
Tracing an unlabelled copper run requires emitting an electrical tone via a tone generator at the wall jack and listening for that signal with an inductive probe at the patch panel. Confirming that power is being delivered to the VoIP phone requires a PoE tester to measure active DC power on the Ethernet port.
Step-by-Step Solution
Key Concept
Utilizing basic hardware testers for copper cable identification and Power over Ethernet (PoE) verification.