GJXH 2 Steel Wires Indoor Bow-type FTTH Drop Cable

GJXH 2.0*3.0mm Indoor Bow-type FTTH Drop Cable with Two Metallic Strength Member

Overview:

GJXH is a domestically standardized model for indoor FTTH (Fiber to the Home) drop cables in China, defined by standards such as YD/T 1997-2014 (Chinese communication industry standard for optical fiber drop cables). The "2.0*3.0mm" refers to its cross-sectional dimensions, and "two metallic strength members" indicate its reinforcement design. This cable is specifically engineered for short-distance, indoor fiber deployment in FTTH networks, bridging the "last 100 meters" between optical distribution frames (ODFs) and end-user premises (e.g., homes, offices).

• Model: GJXH

• Outer diameter: 2.0mm (thickness) × 3.0mm (width), ultra-compact for easy routing;

• Fiber core: Typically 1 or 2 single-mode optical fibers (e.g., G.652D, the most common FTTH fiber, supporting high-speed signals up to 100Gbps over long distances);

• Strength members: 2 parallel metallic wires (usually galvanized steel or phosphated steel, for tensile and bending resistance);

• Operating temperature: -20°C ~ +60°C (adaptable to general indoor temperature fluctuations);

• Minimum bending radius: Static (no tension): ≥20×cable diameter; Dynamic (under tension): ≥40×cable diameter.

Structral Composition of Bow-type FTTH Drop Cable GJXH:

The optical fiber unit is positioned in the center. Two parallel steel wires as strength members are placed at both sides, then a black or colored LSZH jacket is extruded outside.

Features of FTTH Drop Cable GJXH:

(1) Compact & Lightweight

• Outer diameter of only 2.0×3.0mm and weight of ~7kg/km, making it easy to route through narrow spaces (e.g., wall cavities, ceiling gaps, or along baseboards) without occupying excessive space.

(2) Excellent Mechanical Performance

• Tension resistance: The 2 metallic strength members support a maximum short-term tensile load of 100N and long-term load of 50N, preventing fiber stretching/breakage during installation (e.g., pulling from a floor box to a user’s living room).

• Bending resistance: Small minimum bending radius (≥30mm static) allows it to bend around corners or furniture without signal loss (attenuation increase ≤0.1dB).

(3) Flame-Retardant & Safe for Indoor Use

• LSZH sheaths emit no toxic smoke or halogen gas in case of fire, making them ideal for public buildings (e.g., apartments, offices, schools).

(4) Easy to Install & Maintain

• Bow-type sheath design: Can be stripped quickly with a standard fiber optic stripper (no need for complex tools), reducing on-site installation time.

• Color-coded sheaths: Common colors (black, white, or gray) help distinguish different user lines during network maintenance.

(5) Low Signal Attenuation

• Uses G.652.D/ G657 single-mode fiber, with typical attenuation of ≤0.36dB/km at 1310nm (for voice/data) and ≤0.22dB/km at 1550nm (for high-speed internet/IPTV), ensuring stable signal transmission for FTTH services (e.g., 100Mbps/1Gbps broadband).

Applications:

(1) Home FTTH Deployment

• Routing from the building's "fiber distribution box" (FDB, usually on each floor) to the user's ONU (installed in the living room or study). It can be hidden in wall grooves, under carpets, or along door frames for a neat appearance.

(2) Indoor Enterprise/Office Networks

• Connecting the enterprise's optical distribution frame (ODF) to individual workstations or network cabinets, supporting high-speed internal data transmission (e.g., for video conferences, cloud storage access).

(3) Public Buildings & Residential Complexes

• Used in apartments, hotels, or hospitals to deliver FTTH services to each room. The LSZH sheath ensures compliance with fire safety regulations for densely populated areas.

(4) Short-Distance Indoor Fiber Extensions

• Extending fiber links between indoor devices (e.g., from a main ONU to a secondary router in a large house, or from a surveillance camera to a network NVR).