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Where the fiber used to pay attention?
Generally we need to assess the availability of fiber optic test site through the fiber insertion loss (optical attenuation). General singlemode fiber insertion loss value 0.3-0.4dB / Km, if the measured insertion loss and calculated values vary greatly, indicating the presence of the following possible problems Fiber:
(1) fiber optic interface is not fully seated on the docking;
(2) optical interface by the end face dust and other pollution;
(3) fiber intermediate physical damage, partial damage or disconnection;
(4) fiber bend radius is less than 8cm;
(5) other related issues.
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