Exfo Electro-Optical Engineering Inc. has unveiled the LFD-300/TG-300 FiberFinder to help field technicians isolate specific live fiber segments in patch panels and to pinpoint the correct end-to-end connection when performing network upgrades or characterization of optical networks. Installed at the transmitter site, the clip-on TG-300 tone generator adds a 0.1-dB signature to the live signal by applying low-frequency modulation pressure to the fiber. If the fiber is live, the signature will be detected within seconds by the LFD-300 at the other end.

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