Special wavelength OTDRs are reliable instruments used to measure the characteristics of optical fibers with large core diameters.This series of products are compact, light transmission quality and achieves the measurement results after the results processing,archiving, printing. The person who installs and maintains the fiber optic cable by looking at the "incident point"of fiber optic test graph to point out these irregularities in the fiber, locate the positions, measure the attenuation and the uniformity of damage and attenuation.
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