RJ45 Network Cable Tester for Cat5e Cat6 and RJ11 LAN Cables

Cable testing after crimping is a fundamental quality step in professional network cable installation. Every RJ45 crimp connector must be tested after termination to confirm that all eight conductors have made correct contact with the IDC blades in the connector and that the wiring sequence at both ends matches. A cable that fails this test is not a functional network cable and must be re-terminated before installation.

The RJ45 cable tester works by sending a test signal through each conductor in sequence from the main tester unit (connected to one end of the cable) to the remote unit (connected to the other end). LED indicators on both units illuminate in sequence if each conductor is correctly connected through, with any failed conductor, short circuit, or crossed pair immediately visible from the indicator sequence.

RJ11 telephone cable testing is included, covering the most common telephony cable connector type alongside the network cable test function. The same principle applies: the tester confirms correct continuity through each conductor at both ends of the cable.

For network cable installers, PoE camera engineers, and IT installation teams across London and the UK, a cable tester is a required tool for confirming the quality of every RJ45 termination before the cable is run in and fixed in position, where re-termination would require pulling the cable through conduit or removing cable management.

Key Features

• Tests RJ45 Cat5e and Cat6 network cables and RJ11 telephone cables
• Verifies correct wiring of all 8 conductors through the cable
• Identifies open circuits, short circuits, and miswired pairs
• LED indicators display conductor sequence from main and remote unit
• Required quality check for all RJ45 terminations before installation
• Prevents discovering cable faults after the cable is fixed and run in