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Next Generation of Fiber Optic Loose Tube Cable

Specification Sheet
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OSP MicroCore® LM-Series


  • 12 up to 432 fibers
  • Robust, kink-resistant buffer tubes reduce time and handling issues associated with enclosure build-outs
  • 300lb installation tensile load rating
  • OD compatible with 10 mm to 16 mm inside diameter microducts
  • Toneable option includes a low-resistance copper wire that allows cable/pathway to be located using standard electromagnetic detector devices


  • Long-haul, middle-mile and metro-loop
  • Campus inter-building backbone distribution
  • Low-cost fiber upgrade migration strategies
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Product Description

AFL OSP MicroCore® cable series is designed for outside plant installation in microduct conduit systems. The foundation of the design is the multi-fiber-set, gel-filled buffer tube construction. The kink-resistant buffer tube contains multiple 12-fiber sets of color-coded fibers. Each set within the buffer tube is grouped using dual color-coded binder threads. The dry-blocked core is made up of SZ-stranded buffer tubes around a central strength member. The low-friction, high-strength overall jacketing system protects the cable-core while providing an optimized cable package supporting high-speed, long-distance jetting performance. The unique, high-fiber density geometry yields a cable construction that can accommodate up to 432 fibers and can be blown into microducts ranging in inside diameters from 10 mm to 16 mm.

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