A protective coating extruded tightly over fibre for mechanical and environmental protection. A thick coating of a plastic-type material is applied directly to the outside of the fibre itself. The coating material is either nylon or PVC. This results in a smaller overall diameter of the entire cable and one that is more resistant to crushing or overall impact forces. The buffering offers excellent physical and flexing properties and higher micro-bending sensitivity. Tight buffer cable is normally lighter in weight and more flexible than loose-tube cable.
See also Loose Buffer
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