1. Product Overview
The SPTK-VFL650-XX is a Visual Fault Locator (VFL) designed by SOPTO for field installation personnel, used for fiber tracing, fiber routing, and continuity checking during and after fiber network installation. The series uses 650nm visible red light as the light source, allowing technicians to quickly identify break points, bends, and connection faults in fiber links with the naked eye or auxiliary tools.
The series includes 5 models with output power ranging from 1mW to 50mW, corresponding to dynamic distances from 3~5km up to 12~16km, meeting different levels of maintenance requirements from building cabling to metro fiber networks. The device features an aluminum alloy casing weighing approximately 125g and comes with a standard 2.5mm universal fiber adapter interface, compatible with mainstream connectors such as FC, SC, and ST, making it an efficient and economical tool for fiber installation and maintenance.
650nm
Wavelength
1~50mW
Output Power
3~16km
Dynamic Distance
2.5mm
Universal Interface
~125g
Weight
2. Key Features
- 650nm Visible Red Light: Wavelength of 650nm ± 20nm, a red laser visible to the naked eye, making it easy to intuitively locate fiber fault points.
- Multiple Power Levels Available: 5 power options from 1mW to 50mW, with dynamic distance covering 3~16km to accommodate different link lengths.
- 2.5mm Universal Adapter: Standard 2.5mm universal interface, compatible with mainstream fiber connectors such as FC, SC, and ST, with no additional adapters required.
- Aluminum Alloy Casing: Made of aluminum alloy material, weighing approximately 125g, combining durability with portability.
- AA Battery Powered: Uses 2 AA batteries, widely available and easy to replace in the field.
- Wide Temperature Range: Operating temperature -10~+60°C, storage temperature -20~+70°C, suitable for various outdoor environmental conditions.
3. Technical Specifications
Optical Parameters
| Parameter | Specification |
|---|---|
| Operating Wavelength | 650nm ± 20nm |
| Output Power | >1mW / >10mW / >15mW / >20mW (by model) |
| Dynamic Distance | 3~5km / 7~10km / 10~12km / 12~16km (by model) |
| Fiber Adapter | 2.5mm Universal |
Physical and Environmental Parameters
| Parameter | Specification |
|---|---|
| Casing Material | Aluminum Alloy |
| Power Supply | AA × 2 |
| Weight | Approx. 125g |
| Dimensions | Φ26 × 175mm |
| Operating Temperature | -10 ~ +60°C, 90%RH |
| Storage Temperature | -20 ~ +70°C, 90%RH |
4. Model and Power Comparison
The table below lists the output power, dynamic distance, and casing type for each model. Users can select the appropriate model based on their actual fiber link length and testing requirements.
| Model | Output Power | Dynamic Distance | Casing Type |
|---|---|---|---|
| SPTK-VFL650-AS1 | >1mW | 3~5km | Type A |
| SPTK-VFL650-AS10 | >10mW | 7~10km | Type A |
| SPTK-VFL650-AS30 | >30mW | 10~12km | Type A |
| SPTK-VFL650-DS20 | >20mW | 12~16km | Type D |
| SPTK-VFL650-BS50 | >50mW | — | Type B |
5. Applications
- Fiber Tracing and Routing: Quickly identify the target fiber among multiple fiber bundles and confirm cabling routes.
- Continuity Checking: Verify whether a fiber link is connected and quickly determine if there are any breaks.
- Fault Point Localization: At points of excessive bending or breakage in the fiber, red light leaks from the defect and is visible to the naked eye.
- Installation and Maintenance: Suitable for acceptance testing and routine maintenance during and after fiber network installation.
6. Ordering Information
| Model | Product Description |
|---|---|
| SPTK-VFL650-AS1 | Visual Fault Locator, output power 1mW, Type A |
| SPTK-VFL650-AS10 | Visual Fault Locator, output power 10mW, Type A |
| SPTK-VFL650-AS30 | Visual Fault Locator, output power 30mW, Type A |
| SPTK-VFL650-DS20 | Visual Fault Locator, output power 20mW, Type D |
| SPTK-VFL650-BS50 | Visual Fault Locator, output power 50mW, Type B |
For more customized services, please contact SOPTO using the following methods:
Email: info@s-opto.com
Website: www.s-opto.com
7. Glossary
| Abbreviation | Full Name | Definition |
|---|---|---|
| VFL | Visual Fault Locator | A device that uses visible light to detect breaks and fault points in fiber links. |
| 650nm | — | Red light band, within the visible light range, which is the laser operating wavelength of this product series. |
| FC / SC / ST | — | Mainstream fiber connector types, all compatible with the VFL via the 2.5mm universal adapter. |
| AA | AA battery | A standard battery size; this product is powered by 2 AA batteries. |
| mW | milliwatt | A unit of optical power, where 1mW = 0.001W. |
