Sumitomo FDT-2FS Fiber Identifier and Power Meter
Overview
The Sumitomo FDT-2FS Fiber Identifier and Power Meter is a handheld test instrument for optical fiber networks. It combines two important functions in one tool. The fiber identifier detects traffic signals and helps technicians identify a specific fiber without disconnecting it. The power meter measures optical power levels at common wavelengths. The FDT-2FS supports SC connectors and covers 1310nm, 1490nm, and 1550nm. These wavelengths are widely used in telecom, FTTH, and data center networks. The instrument helps technicians install, maintain, and troubleshoot fiber links efficiently.
Fiber Identifier Function
The fiber identifier uses a non intrusive method to detect optical signals in a fiber. It bends the fiber slightly to couple a small amount of light into a detector. This allows the technician to determine if the fiber is carrying traffic and in which direction. The FDT-2FS can help identify the correct fiber at a patch panel or splice closure. This reduces the risk of accidentally disconnecting an active link. The identifier works with standard single mode fibers. It provides visual or audible indication of signal presence. The function is useful during installation, rerouting, and maintenance.
Power Meter Function
The power meter measures the absolute optical power in a fiber. It supports 1310nm, 1490nm, and 1550nm wavelengths. These are common for telecom and FTTH applications. The meter displays power in dBm or microwatts. Technicians use it to check transmitter output, measure loss through connectors and splices, and verify receiver levels. Accurate power measurement helps ensure that the network operates within specifications. The FDT-2FS should be calibrated periodically to maintain accuracy. The SC connector interface allows quick connection to patch cords and adapters. Proper cleaning of connectors before measurement is important for reliable results.
Operation and Display
The Sumitomo FDT-2FS is designed for simple field operation. It has a clear display that shows power readings and identifier status. Buttons allow the user to switch between modes and select wavelengths. The instrument may include a backlight for low light conditions. Battery operation supports mobile use. The housing is designed to withstand field conditions. The fiber identifier and power meter functions can be used separately or together. This combined capability reduces the number of tools technicians need to carry. The instrument helps improve efficiency and accuracy during fiber network work.
Applications
The Sumitomo FDT-2FS is suitable for many fiber optic applications. It is used in telecom central offices, FTTH installations, data centers, and outside plant maintenance. Technicians use it to identify fibers, measure power, and troubleshoot links. It helps verify that transmitters and receivers are operating correctly. It also helps locate faults and high loss points. In FTTH, the power meter checks optical levels at the customer premises. In data centers, the identifier helps trace high density fiber routes. The FDT-2FS is a practical tool for installation and maintenance teams.
Maintenance and Care
Regular maintenance helps ensure accurate measurements. The optical ports should be kept clean and covered when not in use. Connectors should be inspected and cleaned before each use. The instrument should be stored in a protective case. Battery levels should be checked before field work. Calibration should be verified according to the service schedule. If readings become unstable, the detector or connector may need cleaning or service. The fiber identifier mechanism should be checked for smooth operation. Following these practices helps extend the life of the instrument and maintain reliable performance.
Conclusion
The Sumitomo FDT-2FS Fiber Identifier and Power Meter is a versatile tool for optical fiber testing. It combines fiber identification and power measurement in one handheld instrument. It supports 1310nm, 1490nm, and 1550nm wavelengths with SC connectivity. Its reliable performance helps technicians install, maintain, and troubleshoot fiber networks efficiently. Correct use and regular maintenance help ensure accurate results. For fiber optic professionals, the FDT-2FS is a practical and valuable addition to their tool kit.
