Saluki S2106 Series, Руководство пользователя

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4.1.1 Normal Curve
As shown, how to judge whether the curve is normal or not?
(1) The main slope of the curve is basically the same, and the slope
is smaller, which indicates that the attenuation constant of the line is
higher than that of the line.
Small, good uniformity of attenuation.
(2) There is no obvious "step", which indicates that the quality of
line joints is better.
(3) The tail reflection peak is higher, which indicates that the distal
end-forming quality is better.
4.1.2 Curves Have Large Steps
If there is an obvious "step" in the lower right figure, if this is the
joint, it means that the joint is not qualified or that the bending radius
of the optical fiber is too small or squeezed in the fused disc; if this is
not the joint, it means that the optical cable is squeezed or sharply
bent here.