Ready to Bridge Your Network with Reliable Fiber Optic Products?
Shanghai FiberBridge Trading supplies high-quality fiber optic products and accessories to telecom operators, network installers, and distributors worldwide.
Fiber Joint Closures
Fiber joint closures are sealed protective enclosures designed to house, organize, and safeguard fiber optic splices in optical communication networks. They protect optical fiber splices from harsh environmental conditions, moisture, and mechanical stress across aerial, underground, wall-mounted, and direct-buried installations.
Fiber Joint Closures
Fiber joint closures (also known as fiber optic splice closures) are protective enclosures engineered to house, organize, and protect optical fiber splices in demanding outdoor and indoor environments. They safeguard spliced fiber optic connections against moisture, physical stress, chemicals, and extreme temperatures across aerial, underground, pole-mount, and direct buried installations.
Horizontal In-line Splice Closure
This type of closure features an elongated horizontal housing designed to join cables linearly. It provides straight-through or branch splicing protection for aerial, wall-mount, or underground duct environments. Key options: • Fiber tray capacity (e.g., 12, 24, 48, 96, or 144 cores). • Number of cable entry ports (e.g., 2 in / 2 out, 3 in / 3 out). • Sealing mechanism (heat-shrinkable sleeve seals or mechanical silicone rubber gaskets). • IP rating (typically IP68 for complete dust and water immersion protection). • Outer casing material (high-impact UV-resistant polypropylene or polycarbonate).
Vertical Dome Splice Closure
Featuring a dome-shaped cylindrical body, this closure is engineered for high-density fiber splicing in underground manholes, aerial poles, and vault installations with easy re-entry access. Key options: • Core capacity ranging from 24 up to 288 or 576 splices. • Cable entry ports (1 oval port for uncut cable loop plus multiple round branch ports). • Sealing type (heat-shrink sleeve sealing or mechanical latching system). • Mounting accessories (pole-mount brackets, strand hangers, or wall brackets). • Air valve integration for pressure testing seal integrity.
Mini Splice Closure (Small Repair Box)
A compact, lightweight enclosure specifically designed for rapid drop cable repair, emergency restoration, or small-core FTTH branch connections in tight spaces. Key options: • Capacity for 2, 4, 6, 8, or 12 splices. • Compact form factor for small handholes, pedestals, or wall mounts. • Simple mechanical latching or snap-lock sealing for fast field installation. • Waterproof gasket protection (IP65 to IP68 rating). • Compatibility with flat drop cables and micro-cables.
Waterproof Underground Closure (IP68)
Built with heavy-duty reinforced polymers and vulcanized rubber seals, this closure withstands continuous immersion in water, direct soil burial, and harsh underground conditions. Key options: • IP68 rating certified for submerged underground manholes and direct burial. • High impact, chemical, and UV-resistant polymer casing. • Core capacities from 24 to 244+ fibers. • Stainless steel structural hardware and grounding clamps. • Re-enterable mechanical sealing system eliminating heat gun tools.
High-Capacity Multifunction Closure (144, 288, 576 Cores)
Engineered for telecom backbone networks requiring massive fiber splicing counts, accommodating ribbon or loose tube optical fibers with modular routing management. Key options: • High core count configurations (144, 288, 432, or 576 splices). • Modular stackable splice tray arrangement. • Support for ribbon fiber, micro-duct, and traditional loose tube cables. • Multiple drop cable entry ports and optical splitter integration. • Heavy-duty structural ribbing for maximum crush resistance.
Aerial Pole-Mount Closure
Specifically structured with specialized mounting hardware and aerodynamic UV-stabilized housing for attachment to overhead messenger wires, utility poles, or towers. Key options: • Specialized aerial hanging brackets and stainless steel pole clamping kits. • Weather-proof, UV-resistant, and flame-retardant outer shell. • Splice tray capacity options (12, 24, 48, 96, or 144 cores). • Re-enterable latch closure for overhead maintenance access. • Built-in cable strain relief and electrical grounding accessories.
Note on Options:
Many options, such as core capacity, sealing method, UV-resistant material, and grounding accessories, appear across multiple subcategories. However, specific features like IP68 water submersion rating, high core counts (up to 576 cores), or dedicated aerial messenger clamping brackets are specialized to particular subcategories depending on their deployment location.
