LAN cable tester RJ45, RJ12, RJ11, coaxial NT-0401

Universal cabling diagnostics tool

This Lanberg NT-0401 network cable tester is an indispensable device for every installer and user who cares about a functional and reliable network. The device allows for quick and precise verification of cabling, saving valuable time during installation and troubleshooting. It checks the continuity of wires, detects short circuits, breaks, crossovers and reversed pairs – all to ensure a stable connection.

The tester supports a wide range of connectors – RJ-45, RJ-12, RJ-11 and coaxial connectors, making it a versatile tool for working with different types of installations. Thanks to it, you can effectively diagnose problems in LAN networks, as well as in telephone and cable TV installations.

Functionality and application

The device consists of two parts: a main tester and a terminator (attachment). The tester is equipped with LEDs indicating the status of connections and a power switch. Thanks to two scanning speed modes – normal and slow – you can adapt the test to the specifics of the cabling. Signaling with 9 LEDs makes it easier to interpret measurement results.

The Lanberg NT-0401 tester finds application in many areas:

• LAN network installations (switches, routers, patch panels).
• Telephone installations (flush-mounted and surface-mounted sockets).
• Cable TV installations.
• Alarm systems, fire protection, access control and CCTV/IP monitoring.
• Server rooms and data centers.
• Service work in telecommunications and engineering companies.

Technical specifications and construction

The device is compact and lightweight (100g), making it easy to transport and use in the field. It is powered by a 9V battery (not included). The housing made of plastic ensures durability and resistance to damage. The tester checks the correctness of the screen connection in FTP cables (shielded), which is particularly important for ensuring the proper operation of the network. It provides automatic verification of the correctness of connections in RJ-45 and RJ-11 cables, as well as detects connection errors, short circuits and breaks in the cabling. The maximum operating current is 20mA and the typical current is 2.5mA. The signal transmission distance exceeds 250m. The device has a CE certificate confirming safety of use.