Fiber optic outdoor drop cables are specialized cables designed for Fiber-to-the-Home (FTTH) and Fiber-to-the-Building (FTTB) applications. These “butterfly” or “flat” cables are lightweight, flexible, and built for last-mile connections from the main network to end-users. They feature a bow-tie cross-section for easy installation, with parallel strength members (like FRP or steel wires) for tension resistance and protection against compression. The 1km length is a standard spool size for outdoor deployments, suitable for aerial, duct, or direct-buried installations in harsh environments (UV-resistant, water-resistant, low-smoke zero-halogen (LSZH) sheaths).

Key Features and Specifications

• Fiber Type: Typically single-mode G.657A1 or G.657A2 (bend-insensitive for tight radii without signal loss).
• Core Counts: Common options include 1, 2, 4, 6, 8, or 12 cores (9/125μm).
• Dimensions: Flat profile, e.g., 2x5mm or 3x5mm for minimal space.
• Strength Members: 2x FRP (0.4-0.5mm) + 1x steel wire (1.0mm) for tensile strength up to 100-200N.
• Jacket: Black LSZH or PE for flame retardancy, environmental protection, and easy stripping.
• Attenuation: Low loss (<0.36 dB/km at 1310nm; <0.22 dB/km at 1550nm) for high-bandwidth (up to 100Gbps) transmission.
• Applications: Outdoor FTTH drops, telecom networks, surveillance, high-speed internet (VoIP, HD video).
• Standards: Compliant with ITU-T G.657, RoHS; gel-free for quick splicing.