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Visual Fault Locator FLS-400

The FLS-400 is a slim-line, compact visual fault locator, designed to troubleshoot faults on fiber optic cables. It’s light-weight, pen style makes it ideal for the installer to carry with them on site. The FLS-400 is an excellent addition to an engineer’s tool set because it can locate broken fiber inside the OTDR’s dead-zone. Being portable and light it lends itself to other applications, including end-to-end continuity checks, identifying connectors in patch panels, and identifying fibers during splicing operations. The universal connector interface provides fast operation with many connector styles, without the need to change adapters.

Features and Benefits:
  • 650nm visible red laser source
  • Slim line pen-style
  • High power (10mW)
  • 2.5mm universal connector interface for quick connection (for SC, ST, FC)
  • 1.25mm adapter available (for LC)
  • Visual fault locators are used for installation, fault finding, continuity checking, polarity checking, verifying a signal path, and identifying a fiber. For single mode and multimode fibers.
Ordering Information Description Part Number
Visual Fault Locator (VFL) FLS-400
1.25mm adapter for FLS-400 FLS-400-ADPT1.25
Packaging Description
Cardboard box, 1 unit per box
Technical Characteristics Parameter Value
Connector type Universal 2.5 & 1.25mm adapter
Power 2 * AA alkaline batteries (40 hours typical)
Emitter type Class 2 Laser diode
Wavelength 650nm nominal
Output power 10 mW (into single-mode fiber)
Modulation 2 Hz or CW selected
Physical Characteristics Parameter Value
Dimensions 170 mm x 13.5 mm
Weight 88 g (including batteries)
Mechanical Characteristics Parameter Value
Operating temperature 0 ~ 40°C
Storage temperature -20 ~ 60°C
Relative humidity ≤ 95% (non condensing)

Product Datasheet (PDF)