Fiber optic cable having buffer tubes with optical fiber bundles

Details Fiber optic cable having buffer tubes with optical fiber bundles Fiber optic cable having buffer tubes with optical fiber bundles

1993-02-11

1994-09-06

Healy, Brian

Optical waveguides

Optical transmission cable

Loose tube type

385100, 385111, 385113, G02B 644

Patent

active

053455266

ABSTRACT:
A fiber optic cable and method for making the cable includes a plurality of buffer tubes positioned around a central member with three levels of color coding to enhance identification of individual optical fibers within the cable. Each of the buffer tubes has a predetermined color for identifying each individual buffer tube from the other buffer tubes, and a plurality of optical fibers are positioned within each buffer tube and arranged in a plurality of optical fiber bundles within each buffer tube. Each optical fiber bundle includes a binder yarn surrounding respective ones of the optical fibers with each of the binders having a predetermined color for identifying each individual optical fiber bundle from the other optical fiber bundles within a respective buffer tube. In addition, each of the optical fibers has a predetermined color for identifying each individual optical fiber from other optical fibers within a respective optical fiber bundle. Accordingly, three levels of identification are provided in a compact cable having a relatively small cross-section and a large number of small groups of fibers may be formed as required for an emerging cable television architecture requiring a large number of spaced apart drop points for small groups of fibers.

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