Viavi: FI-60 Live Fiber Identifier

The Viavi FI-60 is a compact, handheld Live Fiber Identifier (LFI) that detects optical signals in singlemode fiber without disconnecting or interrupting service. Simply clamp the tool onto a fiber to check for traffic, tone, or no signal. Designed to work with various fiber sizes (250 µm, 900 µm, and jacketed up to 3 mm), the FI-60 is ideal for quick fiber identification in the field. It also functions as a full-featured Optical Power Meter (OPM)—allowing you to measure power levels with one compact device.

Connector Type

• No Connector Required
  Compatible with 250 µm, 900 µm, and jacketed fiber up to 3 mm.
  Includes 2.5 mm and 1.25 mm metal adapters for OPM measurements.

Benefits & Applications

• Simple, Clamp-On Signal Detection
  Quickly identify fiber traffic or tone by clamping the tool onto the fiber—no disconnection required.
• Two Tools in One
  Combines live fiber detection and power meter functionality, minimizing gear in the field.
• Works with Multiple Fiber Types
  Designed for 250 µm, 900 µm, and 2–3 mm jacketed fibers—no adapters needed for live testing.

Key Features

• Clamps directly onto fiber to detect live signals
• Identifies no signal, traffic, or tones (270, 330, 1000, 2K Hz)
• Converts to Optical Power Meter with storage and USB export
• Measures absolute (dBm) and relative (dB) power
• Includes 2.5 mm and 1.25 mm adapters for OPM use