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Viavi (Viavi (JDSU)) FFL-050 Visual Fault Locator (VFL)

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Convenient Pocket size VFL ̶ Constant & pulsed wave ̶ Includes 2.5mm adapter



Availability: In Stock / Available for Dispatch

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Excl. Tax: AU$309.73 Incl. Tax: AU$340.70

Availability: In Stock / Available for Dispatch



  • Compact & ergonomic design for ultimate portability
  • Visible wavelength is 650 nm
  • High powered laser (1 mW) for single-mode (>7km)and multimode (>5km) connectors
  • Continuous or Flash illumination
  • Universal connector interface for quick & easy connection
  • 2.5mm connector input (1.25 mm adapter available)


Whether installing or troubleshooting, the Visual Fault Locator (VFL) is an essential tool that quickly and easily locates problem areas in fiber cables. By pinpointing the exact location of fiber damage, technicians can diagnose, troubleshoot, and fix the problem efficiently. The VFL is also used for conducting continuity tests and performing fiber identification.

JDSU offers two unique versions of the VFL that are economically priced and ergonomically designed for comfortable handling and portability.

FFL-050 is equipped with a 2.5mm interface and are compatible with connectors such as SC, ST, and FC, while the 1.25mm adapter (sold separately) enables connection to LC and MU connectors.

The VFL emits a bright red laser beam (Class II), making the light escaping from the damaged fiber easily visible from a distance.

The Continuous/Flash control button lets operators choose between continuous or flashing illumination.





11.4 x 3.5 x 2.0 cm (4.5 x 1.4 x 0.8in)


46g (1.6oz) with two AAA batteries

Fiber Compatibility      

Singlemode & Multimode


650nm (visible)

Laser Safety Rating

Class II

Output Power

1.0mW max

Output Modes

Continuous and flashing


>7km singlemode

>5km multimode

Connector Interface

Universal 2.5mm (fixed)

Universal 1.25mm adapter (sold separately)




Battery Type

2 x AAA

Battery Life

30+ hours on continuous

Carrying Case

Soft-sided with belt loop


1992, EN 61010-2, CE




Type Visual Fault Locators
Applications NBN (National Broadband Network)
Warranty Notes AusOptic Genuine Product Guarantee
Authorised distributor, benefit from manufacturer-backed, local warranty coverage, genuine parts, and our experienced local support team

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