High-Quality Portable VFL for Fiber Optic Testing

A VFL (Visual Fault Locator) is a handheld device that emits a visible red laser light into an optical fiber. It is used to identify breaks, faults, and other damage in optical fibers. They are commonly used by telecommunications technicians, fiber optic installers, and network engineers.

  • Durable, High-Strength Aluminum Alloy Body
  • Universal 2.5mm Connector (SC/ST/FC Compatible)
  • Dual Operating Modes: Continuous Wave (CW) & 2Hz Pulse
  • Quickly Locates Breaks and Faulty Connectors
  • Essential for Fiber Tracing and Continuity Checks

Description

A VFL (Visual Fault Locator) is an indispensable tool for any fiber optic technician. This pen-type VFL is expertly designed by EPCOM to empower professionals with a reliable, efficient, and user-friendly device for tracing fibers, checking continuity, and locating faults. Its robust construction and powerful laser output make it an essential component of any fiber optic toolkit, ensuring that network maintenance and installation tasks are performed with precision and speed. Whether you are troubleshooting a complex network or performing routine checks, our VFL provides the visibility you need to identify issues like sharp bends, breaks, or faulty connectors that might otherwise remain hidden.

Portable pen-type VFL (Visual Fault Locator) in packaging for fiber optic testing

Understanding the Role of a VFL in Fiber Optics

A Visual Fault Locator, often referred to simply as a VFL, operates by emitting a high-intensity red laser light into a fiber optic cable. This visible light travels along the fiber core and escapes at points where the fiber is compromised. As a result, a glowing red light becomes visible at the exact location of the fault, allowing technicians to pinpoint the problem quickly. This method is particularly effective for identifying issues within the OTDR dead zone, where traditional testing equipment may struggle. The simplicity and immediacy of a VFL make it a fundamental tool for on-the-spot troubleshooting and verification tasks.

Key Features

EPCOM has engineered this VFL with the field technician in mind, focusing on durability, portability, and performance. The body is crafted from a high-strength aluminum alloy, providing excellent protection against accidental drops and the general wear and tear of daily use. It features a universal 2.5mm connector, ensuring seamless compatibility with SC, ST, and FC connectors without the need for additional adapters. Furthermore, the device offers two distinct operating modes: a continuous wave (CW) mode for steady illumination and a 2Hz pulse mode, which creates a flashing light to make faults even easier to identify in well-lit environments. Its long-lasting battery life ensures it remains operational throughout extended workdays.

Practical Applications of Our High-Performance VFL

The versatility of our VFL extends across a wide range of essential fiber optic tasks. Its primary application is, of course, fault location, where it excels at finding macrobends, faulty splices, and broken fibers. Beyond that, it is an invaluable tool for end-to-end continuity checks, confirming that a cable path is intact before proceeding with more complex testing. Technicians also use it for fiber identification and tracing. By connecting the VFL to a fiber at one end of a patch panel, the corresponding port at the other end can be quickly located by sight, dramatically simplifying cable management and organization in dense network environments.

How to Maximize Your VFL’s Effectiveness

To achieve the best results with your Visual Fault Locator, proper preparation and use are key. Before connecting the VFL, it is critical to ensure the fiber end-face is perfectly clean. Contaminants can obstruct the laser light and lead to inaccurate results. For this task, we highly recommend using a specialized tool like our Fiber Optic Cassette Cleaner, which provides a pristine surface every time. For situations requiring multiple cleanings, the Refillable Cleaner Cassette offers a cost-effective and environmentally friendly solution. Once the fiber is clean, connect the VFL and activate the laser. For creating new connections or repairs, using a high-quality Optical Fiber Cleaver is essential to ensure a clean, precise cut, which is fundamental for minimizing signal loss.

Technical Specifications of Our Portable VFL

At EPCOM, we believe in transparency and providing our clients with all the necessary details to make an informed decision. The following table outlines the technical specifications of our portable Visual Fault Locator.

Parameter Specification
Central Wavelength 650nm ± 10nm
Emitter Type FP-LD
Output Power Selectable (1mW, 10mW, 20mW, 30mW, 50mW)
Optical Connector 2.5mm universal connector (for FC/SC/ST)
Operating Model Continuous Wave (CW) and Pulse (2Hz)
Power Supply 2 AA Batteries
Battery Operating Time > 60 hours
Operating Temperature -10°C to +60°C
Storage Temperature -20°C to +70°C
Dimensions (mm) 175 x 26 x 26
Weight (with batteries) 173g

Why Choose EPCOM for Your VFL Requirements?

Choosing EPCOM means investing in quality and reliability. Our commitment to excellence is evident in every product we manufacture. This VFL is no exception; it undergoes rigorous testing to ensure it meets the highest standards of performance and durability. We understand the demanding conditions of field work, which is why we have built a tool that technicians can depend on day in and day out. When you partner with EPCOM, you not only receive a superior product but also gain access to our dedicated customer support and technical expertise. We stand behind our products, ensuring that you have the tools and support needed to maintain robust and efficient telecommunication networks.