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OSP MicroCore

AFL MicroCore® optical cables provide a unique blown solution to crowded underground ducts where traditional cable designs are not an option. MicroCore cables are smaller than traditional loose tube optical cables and can be blown into otherwise full ducts, expanding the capacity of existing infrastructure which translates into less expense and faster deployment.

The Microcore product line is a complete solution with a range of designs suitable for applications ranging from backbone networks to FTTx. Whether the need is for high fiber density or small cable diameters, AFL MicroCore® has the solution. Designs are always based on minimal cable and duct diameters to ensure a cost effective installation solution.

Microcore cables are jetted or blown through a network of microducts using compressed air. Conduit systems can be laid and microducts blown in as needed, giving installers the flexibility of deploying fiber only when needed, thereby reducing the initial investment costs. Microcore can also be used for “overriding” existing networks and conduits, which might otherwise be deemed as “at capacity”. The flexible, lightweight cable design which has a low friction jacket allows it to be blown over existing cables within a duct, thereby expanding the capacity of that duct which would have otherwise been deemed full.

AFL now offers OSP MicroCore® EZ-TONE tonable cables. The tonable feature allows network owners that deploy these high-density fiber cables within their underground cabling system the ability to locate them using standard electromagnetic locator devices.


AFL OSP MicroCore® cable series is designed for outside plant installation in microduct conduit systems.
The product design integrates 200 μm buffered single-mode fiber which allows for reduced diameter cables compared to traditional OSP micro-cables.
The Heavy Duty OSP MicroCore® (LMHD-Series) is small-diameter loose tube fiber optic cable with a 600lb load-rating. The design consists of SZ-stranded gel-filled buffer tubes, aramid and fiberglass strength elements, and a thick-walled, UV-resistant outer jacket.
AFL’s LMV-Series Indoor/Outdoor OFNR MicroCore product line is designed for applications requiring cables that can be routed in OSP and ISP without the need to transition to a separate flame-rated product.
AFL's LMZ-Series Indoor/Outdoor OFNG-LS MicroCore product line is a flame-rated Low Smoke Zero Halogen (LSZH) cable optimized for mass transit metro rail communications networks.
The MC-Series of AFL MicroCore® are an advanced Blown Fiber Optic Cable system design for the EMEA market. These cables are optimized for air-jetting into micro-duct pathways.