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Visual Fault Locators

GAOTek provides Visual Fault Locators, which are exclusively designed for field workers who need affordable and effective equipment for fiber direction-tracking and continuous check-ups in optical networks during and after installation. The features of Fiber Optic Visual Fault Locators are solid, light, and can easily fit the pocket of a vest. The main applications of these devices consist of testing for poor insulation and identifying faults in the line, cutting lines, micro bending, cross faults, lead enclosed, and plastic cables. As Fiber Optic Visual Locators can exactly identify defective areas on the fiber cables without any difficulty, they are highly favored by many technicians. With the help of the devices, technicians can diagnose, and effectively fix problems.

Functions of Visual Fault Locators

Fiber Optic Visual Fault Locators emit a bright red visible laser beam that further transmits constant light to the other end of the fiber. Users can visually identify fibers within multi-fiber cable bundles during installation or faults over specific distances because they have control buttons which allow technicians to choose between constant or flashing light. This flash mode also enhances the visibility to detect faults. These devices can localize sharp curves, breaks or damages in fibers, lead end-to-end continuity tests, execute fiber tracing and identification. Also, the quality of the connector can be checked by using Visual Fault Locators.


GAOTek’s Visual Fault Locators are exclusively created to be convenient, and light in order to be easily portable. These devices have visible laser lights and highly-powered lasers that can measure clear distance for single-mode and multi-mode connectors with precision. Besides, these devices also have universal adapters which fit all other typical optical connectors, for example, SC, ST, and FC. They are effective to run with all types of patch cords, ribbons or bunched pigtails in the installation and maintenance of fiber optic systems. These tools use special laser driver circuits which can guarantee stable power output and can localize breaks in small patch cords. OTDRs cannot identify these problems because of their operating dead zone.

Applications and Industries

Optical networks comprising of LAN, FDDI, and ATM are greatly assisted by Optical Visual Fault Locators in order to have a high level of maintenance of the fiber optic systems. Test labs of optical fibers and telecommunication networks mainly use these devices. Also, they are used in CATV systems to trace fiber loss testing, optical examination and fault locating for both single mode and multimode optical fibers.

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