The Fiber Optic Cable Junction Box is a mechanically sealed enclosure. It is designed to protect optical fibers, splices, and optical components; facilitate fiber organization; and store excess fiber. Hermetically sealed to withstand harsh weather conditions, these boxes can be installed outdoors or in indoor environments such as manholes, walls, or cable corridors.
The Fiber Optic Junction Box features four separate cable channels at one end. Each channel allows for the input of at least two medium-capacity multi-fiber cables (dual input) or up to six small-capacity cables (7 mm diameter). The clamp-on hermetic seal mechanism enables full assembly and disassembly of the lid without specialized tools. Cable entry points are sealed at the box using rubber gaskets with pre-cut inlets.
Features of Fiber Optic Cable Joint Box
• Input/output cable diameters: 7 to 22 mm. Maximum capacity: 256 fiber optic (F.O.) fusions (double-layer).
• Splice trays: Rectangular, wide-access design with extendable tabs for easy fiber storage (up to 32 F.O. fibers, double-layer). Both the support block and individual trays can rotate 90° and lock into fixed positions for installation flexibility.
• Operational continuity: Boxes can be opened, closed, and handled without interrupting active circuits. Allows joining/segregating cables without cutting all fibers, and provides adequate storage for excess tubes/fibers.
• Axial tension load per cable: >1000 N (calculated as D/45 mm, where D = cable diameter). Test duration: 1 hour per cable. Maximum cable displacement: <3 mm.
• Cable flexion: Maximum 30° bend under 500 N force. Force applied 400 mm from seal end. Test cycles: 5 per cable.
• Cable torque: Maximum 90° rotation under 50 N·m torque. Force applied 400 mm from seal end. Test cycles: 5 per cable.
• Vibration resistance: Frequency range 10–15 Hz. Swee rate: one octave per minute. Waveform: sinusoidal; amplitude: 3 mm (6 mm peak-to-peak). Cable fastened 500 mm from seal end. Test duration: 2 hours per axis.
• Static load resistance: >1000 N (applied over 25 cm² for 10 minutes).
• Operating temperature: -25°C to +70°C.
• Mechanical impact protection: IK09 (20 J).
• Ingress protection: IP68 (fully hermetic and weatherproof for outdoor use).
• Durability: Materials engineered for a minimum service life of 20 years.
Applications of Fiber Optic Cable Junction Box
• Telecommunication area.
• Internet service.
• Data center, CATV
• FTTH
Our Quality Promise
Comprehensive 3-Year Warranty
We confidently back all our products with a 3-year warranty. Our specific service policy is: within one year for quality issues, we take full responsibility for returns; within two years, for replacements; and within three years, for repairs.
Clear & Competitive MOQ
We welcome both trial and bulk orders. Our standard Minimum Order Quantity (MOQ) is 50 units. We also offer free samples for testing to help you evaluate our quality with confidence.
Fast & Reliable Logistics
We guarantee delivery within 10 days for standard items. Our logistics advantage includes cost-effective door-to-door service to simplify shipping for you.
Our Foundation
Backed by 18 years of experience since 2008, we control quality from our own factory, accept OEM/ODM requests, and maintain ready stock for wholesale. We focus on delivering the optimal balance of price and quality directly to end customers worldwide.
Your trust is our priority. Partner with us for dependable fiber optic solutions supported by clear promises.
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