CompTIA Network+ (N10-009)Network ImplementationEasy
A technician is terminating multiple Cat 6 cables from a wiring closet into a 48-port patch panel. Which tool is required to properly seat each wire into the IDC connectors on the back of the patch panel?
- ACable crimper
- BToner probe
- COTDR
- DPunch-down tool
Show answer & explanationAnswer & explanation
Correct answer: D. Punch-down tool
A punch-down tool is used to press individual wires into the insulation-displacement connectors (IDCs) on a patch panel or keystone jack, cutting the insulation and making the electrical connection. A crimper is used for RJ45 plugs, a toner probe traces cables, and an OTDR tests fiber optic links.
Why the other options are wrong
- A. Crimpers attach RJ45 connectors to cable ends, not patch panels.
- B. Toner probes locate cables, they do not terminate them.
- C. An OTDR measures fiber optic cable characteristics, not copper termination.
Punch-Down Tool
A hand tool used to insert and seat individual wire strands into insulation-displacement connectors (IDCs) found on patch panels and keystone jacks.
- Cuts through wire insulation to make contact
- Common blade types include 66 and 110
- Used with T568A or T568B wiring standards
Memory trick: 'Punch it down' to seat the wire into the panel.