SPTK-VFL650-AS10 Visual Fault Locator
Based on the official SOPTO product specification (SPTK-VFL650-AS10 Specifications)
1. Product Overview
The SPTK-VFL650-AS10 is a Visual Fault Locator (VFL) from SOPTO that detects faults in fiber optic links by emitting red visible light at the 650nm wavelength. With an output optical power exceeding 10mW, the light beam is clearly visible, enabling rapid localization of fiber breaks, excessive bending, and poor connections. It is a commonly used handheld tool during fiber optic network installation, commissioning, and maintenance.
The product features a metal body design with a wear-resistant and drop-resistant housing, suitable for field construction. It comes standard with a 2.5mm universal fiber connector, compatible with SC, FC, ST, and LC (optional) connector types. Power is supplied by 2 AA alkaline batteries, providing continuous operation for over 13 hours. Weighing only 70g, it is easy to carry and ideal for extended field operations.
650nm
Output Wavelength
>10mW
Optical Power
>13h
Battery Life
70g
Total Weight
2.5mm
Universal Connector
2. Key Features
- Powerful Red Light Output: 650nm wavelength red light with output power >10mW, delivering a bright and clear beam for intuitive identification of fiber fault locations.
- Metal Body: Features a metal housing structure with wear-resistant and drop-resistant properties, suitable for field construction and outdoor operating environments.
- Breakpoint Localization: The red visible light produces a light spot at fiber break points, helping operators quickly pinpoint fault locations.
- Stable Light Source: Built-in stable light source design ensures no significant fluctuation in output optical power during continuous operation.
- Multi-Connector Compatibility: Comes standard with a 2.5mm universal connector, supporting SC, FC, and ST connectors; LC connector requires a separately purchased FC male-to-LC female adapter.
- Sliding Switch Design: Sliding the switch up activates constant-on mode, sliding down activates flashing mode, providing intuitive operation and on-demand switching of working states.
3. Product Structure
The structural design of the SPTK-VFL650-AS10 balances practicality and maintainability. The names and functions of each component are described below:
| Component | Description |
|---|---|
| Metal Battery Cartridge | Main body housing, contains the battery installation slot. The metal material provides structural strength and heat dissipation. |
| Protective Cap | Covers the fiber connector end, preventing dust ingress and protecting the ceramic ferrule from impact damage. |
| Sliding Switch | Controls the red light operating state. Slide up to switch to constant-on mode, slide down to switch to flashing mode. |
| Battery Cover | Located at the rear. Open to install or replace 2 AA alkaline batteries. |
| Replaceable Ceramic Ferrule | The 2.5mm metal head contains a 7mm ceramic ferrule. The metal head must be removed for replacement. The ceramic ferrule is fragile; do not use excessive force during installation and removal. |
4. Technical Specifications
| No. | Parameter | Specification |
|---|---|---|
| 1 | Product Name | Visual Fault Locator |
| 2 | Output Optical Power | >10mW |
| 3 | Output Wavelength | 650nm±10nm |
| 4 | Fiber Adapter | 2.5mm universal connector |
| 5 | Operating Temperature | 0°C ~ +60°C |
| 6 | Storage Temperature | -20°C ~ +70°C |
| 7 | Battery Type | 2 AA alkaline batteries |
| 8 | Battery Life | >13 hours |
| 9 | Dimensions | 17.5 × 2 × 2 cm |
| 10 | Weight | 70g |
5. Interface & Accessories
The SPTK-VFL650-AS10 comes standard with a 2.5mm universal fiber connector, compatible with SC, FC, and ST connector types. To test LC interfaces (1.25mm), a FC male-to-LC female adapter must be purchased separately; this adapter is not included as a standard accessory.
The ceramic ferrule and metal head are replaceable accessories that can be purchased individually when worn. To replace, simply remove the metal head to expose the 7mm ceramic ferrule. Note that the ceramic material is fragile; do not use excessive force during installation and removal to avoid ferrule breakage that could affect optical path quality.
6. Ordering Information
| Model | Product Description |
|---|---|
| SPTK-VFL650-AS10 | Visual Fault Locator, output power 10mW, Type A |
For customized services, please contact SOPTO via the following methods:
Email: info@s-opto.com
Website: www.s-opto.com
7. Glossary
| Abbreviation | Full Name | Meaning |
|---|---|---|
| VFL | Visual Fault Locator | A handheld tool that detects fiber optic link faults by emitting visible red light. |
| SC | Subscriber Connector | Square fiber optic connector with push-pull operation, widely used in single-mode and multimode fiber systems. |
| FC | Ferrule Connector | Round fiber optic connector with threaded locking mechanism, suitable for high-precision alignment applications. |
| ST | Straight Tip | Bayonet-style fiber optic connector with twist-lock mechanism, commonly used in multimode fiber networks. |
| LC | Lucent Connector | Small-form-factor fiber optic connector with push-pull latch, commonly found in high-density cabling environments. |
| nm | Nanometer | A unit of length used in fiber optic communications to express the wavelength of optical signals. |
| mW | Milliwatt | A unit of power used to express the output intensity of optical signals. |
