Fiber identifiers let technicians find active fibers safely without unplugging cables, preventing service interruptions and costly mistakes. Pinpoints a specific live fiber using EXFO's FiberFinder™ functionality Induces minimal loss: ≤ 1 dB Locates a particular dark fiber using tone recognition (270 Hz, 1 kHz, 2 kHz) Improved: faster test cycle—three times faster To view the full specifications, download the spec sheet below. Field teams rely on a fiber identifier for safe live fiber detection, efficient network. Increase reliability, avoid network downtime, and complete the job faster with optical fiber identifiers from VIAVI.