Malta butterfly optical cable models

Butterfly optical cables in Malta typically follow international FTTH standards, with indoor and self-supporting outdoor models such as GJXH, GJYXFCH, and GJXFH.Overview of Butterfly Optical CablesButterfly optical cables are named for their flat, wing-shaped cross-section, with the optical fiber centered and flanked by two parallel strength members. This design reduces stress on the fiber when bent along the flat plane, making it ideal for routing along walls, ceilings, or through conduits . The strength members are usually Fiber Reinforced Plastic (FRP) for indoor use, while outdoor self-supporting variants may include a steel messenger wire for aerial deployment .Common Models and TypesIndoor Butterfly Cables (GJXH)FRP strength members onlyLSZH (Low Smoke Zero Halogen) sheathFiber counts: 1–4 cores for single-unit residential, up to 12 cores for multi-tenant buildingsDesigned for building entry to subscriber ONT (Optical Network Terminal) connections Self-Supporting Outdoor Cables (GJYXFCH / GJXFH)Adds a steel messenger wire for aerial spans up to 50 metersSuitable for pole-to-building connections without external supportMaintains bend-insensitive single-mode fiber (ITU-T G.657 standard) for minimal signal loss Pipeline-Specific and Expandable VariantsNewer structural types include GJXJH and GJXFJH, designed for self-supporting or conduit-specific applicationsExpandable designs allow flexible fiber counts and easier installation in constrained spaces Fiber SpecificationsSingle-mode bend-insensitive fibers (G.657.A1, A2, or B3) are standardA1: Suitable for most residential/light commercial deployments, tolerates 10 mm bend radiusA2: Recommended for routing through tight conduits or irregular surfacesCompatible with legacy G.652.D infrastructure for splicing and network integration Connection MethodsButterfly cables can be connected using:Fusion Splicing: Permanent, low-loss connection by welding fiber endsMechanical Splicing: Temporary or field connections without heat, using alignment connectors Applications in MaltaIn Malta, butterfly optical cables are commonly used for:FTTH deployments in residential and multi-tenant buildingsAerial drops from utility poles to buildingsIndoor riser installations connecting building entry points to ONTsTelecommunication networks requiring compact, flexible, and bend-insensitive fiber solutions These models provide a balance of flexibility, durability, and ease of installation, making them suitable for Malta's urban and suburban fiber optic infrastructure.