Outdoor butterfly optical cable models

Outdoor butterfly-shaped optical cables are designed for robust, flexible deployment in pipelines, overhead lines, and FTTH networks, featuring reinforced structures, moisture-resistant sheaths, and dual-purpose indoor/outdoor capabilities.

Key Features of Outdoor Butterfly Optical Cables

1. Structural Design: Outdoor butterfly cables typically have a flat, butterfly-shaped profile, which allows easy installation in narrow spaces and conduit entry. The design often includes reinforced elements such as glass fiber rods, aramid yarn, or steel wires to provide tensile strength, compression resistance, and self-supporting capability ( ). Some models, like the GJYXFHS, incorporate two parallel FRP (Fiber Reinforced Plastic) members and a single steel wire for enhanced durability and tensile performance ( ). 2. Sheath Materials: Outdoor models use PE (polyethylene) or LSZH (low-smoke zero-halogen) outer sheaths for UV protection, flame retardancy, and environmental safety ( ). Additional layers, such as steel tape moisture-proof layers, improve water resistance and reliability in harsh outdoor conditions ( ). 3. Core and Fiber Configuration: Cables can be single-mode or multi-mode, with core counts ranging from 2 to over 12 fibers. Ribbon-type or central bundle designs allow for easy splitting and branching, which is advantageous for network expansion and FTTH deployment ( ). Microfiber tube designs further reduce diameter while maintaining high flexibility and low attenuation ( ). 4. Dual-Purpose Indoor/Outdoor Capability: Some butterfly cables are dual-purpose, suitable for both overhead self-supporting installation and pipeline introduction. Reinforced elements embedded in the butterfly sub-cable sheath allow the cable to meet overhead and conduit requirements simultaneously, reducing installation complexity and cost ( ). 5. Model Naming Conventions:

• GYCJ: Indoor/outdoor dual-purpose, self-supporting, for communication networks ( ).
• GJXFH/GJXFV: Indoor introduction, central bundle tube, non-metallic reinforcement, PVC or flame-retardant PO sheath ( ).
• GJYX: Indoor introduction, filled type, central bundle tube ( ).
• GJYXFHS: Pipeline butterfly-shaped cable with FRP and steel reinforcement, LSZH sheath, PE outer layer ( ).

Applications

• FTTH and FTTO networks: Compact, flexible, and easy to branch for home or office fiber connections ( ).
• Pipeline installations: Designed for conduit entry with moisture-proof and UV-resistant sheaths ( ).
• Overhead self-supporting lines: Reinforced elements allow direct aerial deployment without additional support ( ).

Advantages

• Lightweight and easy to handle
• High tensile and compression resistance
• Moisture and UV resistant
• Flame-retardant and environmentally safe
• Flexible core configurations for network scalability
• Simplified splicing and maintenance due to flat butterfly design Outdoor butterfly-shaped optical cables combine mechanical robustness, environmental protection, and installation versatility, making them ideal for modern fiber optic networks in challenging outdoor conditions ( ).