GYFTY fiber optic cable

　　GYFTY Fiber Optic Cable: Central Tube Non-Armored Solution with Aramid Yarn Strength Members for Outdoor Access Networks

　　With the rapid advancement of fiber-to-the-x (FTTx) networks and smart infrastructure deployments, there is an increasing demand for lightweight, flexible, and cost-effective fiber optic cables for medium-distance outdoor transmission and indoor-outdoor transition scenarios. GYFTY (G: Gel-filled, Y: Polyethylene sheath, F: Non-metallic strength member, T: Central tube structure, Y: PE inner sheath) fiber optic cable, as a classic central tube non-armored solution with aramid yarn reinforcement, is engineered to balance performance, flexibility, and affordability. Our GYFTY Fiber Optic Cable is specifically designed for telecom access networks, FTTx deployments, campus networks, and indoor-outdoor transition links, providing a reliable transmission medium for carriers, ISPs, and enterprise users worldwide.

　　Core Structural & Technical Advantages

　　The GYFTY cable adopts a compact central tube structure, where multiple optical fibers are directly placed in a single gel-filled PBT (Polybutylene Terephthalate) central tube. Surrounding the central tube are high-strength aramid yarns (non-metallic strength members), which provide excellent tensile resistance (long-term tensile strength up to 150N, short-term up to 300N) without adding excessive weight. This integrated structure ensures a small outer diameter (typically 8-11mm) and lightweight design, making the cable highly flexible and easy to handle—critical for scenarios requiring frequent bending or narrow-space routing, such as indoor-outdoor transition ducts or building entry points. The gel filling in the central tube forms a reliable moisture barrier, effectively preventing water intrusion and protecting the fibers from humidity and water damage, ensuring long-term transmission stability in outdoor environments.

　　Unlike armored cables (e.g., GYTS, GYTA), GYFTY features a dual PE (Polyethylene) sheath design (inner PE sheath + outer HDPE sheath) without metal armor, paired with aramid yarn reinforcement for mechanical protection. The outer HDPE sheath boasts excellent UV resistance, weather resistance, and abrasion resistance, enabling reliable operation in extreme temperature ranges from -40°C to 70°C, adapting to diverse climatic conditions such as urban areas, suburbs, and mild outdoor environments. The non-armored, all-non-metallic design not only reduces the cable weight and cost but also avoids signal interference caused by metal components, making it suitable for applications sensitive to electromagnetic compatibility (EMC) and safe for use in lightning-prone areas.

　　Our GYFTY cable supports single-mode (SM, G.652D, G.657A1/A2) optical fibers as standard, with fiber counts ranging from 2 to 72 cores (customizable based on project needs). Single-mode variants enable medium-distance transmission (up to 60km at 1310nm wavelength, 100km at 1550nm wavelength) with data rates up to 100 Gbps, perfectly matching the bandwidth requirements of FTTx access networks, building-to-building links, and small-to-medium enterprise backbone networks. The high-purity optical fibers and advanced manufacturing processes ensure low signal attenuation (typical attenuation: ≤0.36 dB/km at 1310nm, ≤0.22 dB/km at 1550nm), guaranteeing clear and stable data transmission.

　　Key Performance Features

　　• Compact, Lightweight & High Tensile Strength: Central tube structure with aramid yarn reinforcement ensures small outer diameter, lightweight design, and excellent tensile resistance, facilitating easy routing, transportation, and installation in narrow spaces or complex ducts.

　　• Reliable Moisture Protection: Gel-filled central tube and dual PE sheaths form a multi-layer moisture barrier, complying with IEC 60794-1-1 Type B water blocking standard, suitable for outdoor and indoor-outdoor transition environments.

　　• Excellent Weather Resistance: HDPE outer sheath with UV resistance and wide temperature adaptability, ensuring stable performance in sun exposure, rain, and mild cold/hot conditions.

　　• EMC-Friendly & Lightning-Proof: All-non-metallic design without metal components, avoiding EMI/RFI interference and safe for deployment in lightning-prone areas, expanding application scenarios.

　　• Cost-Effective: Simplified structure reduces production costs while maintaining core performance, making it an economical choice for large-scale FTTx and access network deployments.

　　• Long Service Life: High-quality PBT tube, PE sheaths, and optical fibers ensure a service life of over 25 years, meeting long-term network operation requirements.

　　Optimal Applications

　　Our GYFTY Fiber Optic Cable is widely applicable in medium-distance, flexible-requirement network scenarios, especially in non-metallic and lightning-sensitive environments:

　　• FTTx Access Networks: Serving as the last-mile transmission medium for FTTH (Fiber-to-the-Home) and FTTB (Fiber-to-the-Building) deployments, connecting distribution points to residential buildings or end-user premises.

　　• Indoor-Outdoor Transition Links: Routing between outdoor ducts and indoor distribution cabinets, adapting to narrow entry points and frequent bending requirements.

　　• Campus & Enterprise Networks: Connecting buildings in universities, industrial parks, or corporate campuses (medium-distance), supporting high-bandwidth inter-building communication such as video conferencing and data sharing.

　　• Telecom Access Networks: Laying in suburban, rural, or lightning-prone area access networks, connecting base stations or distribution nodes to end-user clusters, bridging the digital divide with cost-effective and safe solutions.

　　• Smart Community & IoT Deployments: Serving as the transmission backbone for smart community devices (e.g., access control systems, surveillance cameras) in outdoor public areas and building perimeters.

　　### Compliance & Quality Assurance

　　Our GYFTY Fiber Optic Cable strictly complies with international standards, including IEC 60794-1-1 (for central tube fiber optic cables), ITU-T G.652D/G.657A1, and RoHS. Each batch of cables undergoes rigorous quality testing, including attenuation testing, water blocking testing, tensile strength testing, bending loss testing, and temperature cycle testing, to ensure consistent performance and reliability. We also offer customized solutions, such as adjusting fiber count, using flame-retardant PE sheaths for indoor sections, or customizing cable length, to meet the specific needs of different regional markets and project scenarios.