Product Catalogue

F6625 Extended Range Optical Fiber Identifier

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The Model F6225 Extended Range Optical Fiber Identifier is a rugged, easy-to-use installation and maintenance instrument which identifies optical fibers by detecting the optical signals being transmitted through a singlemode fiber.

The Model F6225 is designed to meet both the needs of the telecommunications industry and the CATV industry. By utilizing local detection technology (non-destructive macro-bend detection which does not damage or overstress the fiber), the unit eliminates the need to open the fiber at the splice point for identification; eliminating the probability of interrupting service.

The Model F6225 detects low frequency test tones at 270 Hz, 1000 Hz and 2000 Hz. When traffic is present on the fiber under test, an audible tone can be heard as well as the traffic direction which is indicated by LEDs illuminating on the probe. When one of the Test Tones is detected, the F6225 provides a rapid beep audible tone.

During installations, maintenance, rerouting, or restorations it is often necessary to isolate a specific fiber without disrupting service. A light source such as Wilcom's Model FS1316 used in conjunction with the F6225 can make the job a lot easier.

The F6225 includes a carrying pouch containing three easy to use field interchangeable adapter heads to accommodate; 900 μm buffered fiber, ribbon or 250μm coated fiber and 3mm jacketed fiber.


  • Rugged Metal Case - The unit uses the same field proven lightweight rugged metal housing as the rest of Wilcom's Optical FIber Identifier product line.
  • Ambient Light Reduction Shield - The F6225 has an integrated Ambient Light Reduction Shield to decrease the interference of ambient light during use.
  • Audible Tones - The F6225 provides different audible tones depending on signal present / traffic direction and detection of test tones.
  • Core Power Display - The F6225 can display Relative Core Power which is helpful in identifying bad connectors, splice points, verifying documentation etc.
  • LED Indication - LEDs indicate tone detection, Traffic presence, Traffic Direction, and Low Battery.
  • Hands-Free-Operation - With an easy to use thumb lock, hands-free operation can be enabled and disabled.

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