Cable tester
![A tester and analyzer for twisted pair and fiber optic cables.](/Images/godic/202501/02/Cable-tester-and-analyzer-0c4114.jpg")
![A simple tester for BNC and twisted pair cabling](/Images/godic/202501/02/Network_cable_tester_IMGP1639_smial_wp4114.jpg")
A cable tester is an electronic device used to verify the electrical connections in a cable or other wired assembly. Generally a cable tester consists of:
In addition to these parts a cable tester may also have a microcontroller and a display to automate the testing process and show the testing results.