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HOME / Ireland Imported Butterfly-Shaped Drop-in Optical Cable 6 Cores

Ireland Imported Butterfly-Shaped Drop-in Optical Cable 6 Cores

Fiber and communications infrastructure knowledge brief Published 26 Aug 2022

Prepared for preliminary research by the METRA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

The 6-core butterfly-shaped drop-in optical cable is a compact, high-performance FTTH cable designed for indoor and last-mile fiber deployments, featuring low-bend-sensitivity fibers, FRP strength members, and LSZH sheath for safety and flexibility.

Cable Structure and Design

The cable has a butterfly-shaped flat profile, with the optical fibers positioned at the center and reinforced by two parallel Fiber Reinforced Plastic (FRP) strength members on either side, providing tensile strength and crush resistance while maintaining flexibility. The outer sheath is typically LSZH (Low Smoke Zero Halogen), ensuring fire safety and minimal toxic emissions during indoor installation. The 6-core configuration allows for multiple fiber connections in a compact form factor, suitable for residential or commercial FTTH networks.

Fiber and Performance

The optical fibers are usually G. 657A2 single-mode fibers, optimized for tight bending radii (as low as 20mm), reducing signal loss in compact installations. This low-bend-sensitivity fiber ensures high bandwidth and excellent communication transmission, making it ideal for high-speed internet, IPTV, and data services.

The non-metallic FRP members also provide lightning protection and anti-electromagnetic interference, enhancing reliability in indoor and outdoor environments.

Installation and Practical Advantages

The butterfly-shaped design simplifies routing along walls, corners, and conduits, preventing rolling or twisting during deployment. Its small diameter, lightweight, and flexible structure make it easy to handle, strip, splice, and maintain. Compared to traditional round cables, this design reduces bending stress, installation time, and labor costs, while occupying minimal space in ducts or conduits.

Applications

Indoor FTT

H cabling for homes and apartmentsLast-mile network connections from distribution points to end usersAccess networks requiring compact, flexible, and high-bandwidth fiber solutionsDirect LAN-to-user connections in residential or commercial buildings SummaryThe 6-core butterfly-shaped drop-in optical cable imported to Ireland is a highly versatile, compact, and reliable FTTH solution, combining low-bend-sensitivity fibers, FRP reinforcement, and LSZH safety sheath. Its design ensures easy installation, high performance, and durability, making it suitable for modern fiber-to-the-home deployments and indoor network applications.

Ireland Imported Butterfly-Shaped Drop-in Optical Cable 6 Cores - METRA FIBER MARKET [PDF]

Ireland Imported Butterfly-Shaped Drop-in Optical Cable 6 Cores
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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