Common external damages are splits and scratches on the units. The units are highly sensitive; therefore, even the most minor damages have the ability to prevent effective transfer of signals. If you have noticed some defects on your units you should replace them as early as possible.
Optic fibers come in different sizes and lengths and it’s up to you to choose the one that is ideal for your application. In some cases, people install units that are too long than needed.
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