The Fluke Networks NF380 Universal VisiFault Adapter connects the Fluke Networks VisiFault VFL to LC and MU fiber optic cable connectors with 1.25 mm ferrules. It attaches to the output port of the VFL (visual fault locator).

Fluke Networks manufactures tools for network infrastructure installation, testing, certification, and troubleshooting, in copper, fiber, and wireless networks, with its tools widely used by contractors, enterprises, and communication service providers. The company, which operates globally, is based in Everett, WA.