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What is Visual Fault Locators(VFL)?

Visual fault locator is one of the most commonly used optical fiber testing equipment. It is used for tracking optical fibers, checking optical fiber continuity and finding faults in optical fiber cables, such as fracture, poor splicing and tight sharp bending.

Visual fault locator, it can be regarded as a part of OTDR, and optical fiber fault locator is cheap. Optical fiber vision fault locator is a device that can locate glass fiber breakage, bend or crack. It can also locate the dead zone of OTDR and identify the optical fiber from one end to the other. The optical fiber test red light is designed with FC, SC and ST universal adapters. It can be used without any other types of additional adapters. It can locate up to 10km faults in optical fiber cables, compact size, light weight, and red laser output.

The visual fiber fault locator is used to inspect, locate and repair malfunctions on single-mode and multi-mode optical fibers and other optical fiber assemblies. The robust and compact design of the visual fault locator is very suitable for everyday use in all fiber applications in the field, industrial environment and laboratory.

Many problems encountered in troubleshooting optical network are related to correct connection. Because the light used in the optical fiber system is infrared (IR) light, it is beyond the scope of the human eye, so it can not be seen. To solve these problems, you need a visual fault locator. Visual fault locator (VFL) is a device that can locate glass fiber breakage, bend or crack. It can also locate the dead zone of OTDR and identify the optical fiber from one end to the other.

Importance of visual fault locator

The complex network of optical fiber, connector and jumper makes it very difficult for you to find fault location. Therefore, the visual fault locator is an important tool for locating the optical cable fault area quickly and conveniently. By accurately locating the exact location of optical fiber damage, technicians can diagnose, troubleshoot and solve problems in time and effectively. VFL is also used for continuous testing and optical fiber recognition. Using visual fault locator, you can easily isolate high loss and failure in optical cable.

working principle

The complex network of optical fiber, connector and jumper makes it very difficult for you to find fault location. Most applications are concentrated on short cables to connect to optical fiber trunk cables, such as cables for building wiring or telecommunications center offices. VFL is most suitable for short cables, up to a few kilometers, so it covers the range of optical time domain reflectometer (OTDR) because of OTDR dead zone.

The optical fiber visual fault locator includes a pen, handheld and portable visible optical fiber fault locator.

Pen type:

Handheld type:

Portable visual fiber fault locator:

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