A 288-core fiber optic junction box typically accommodates up to 12 splice trays (24 fibers per tray), features multiple round and oval cable ports, and is designed for IP68-rated outdoor use.

Capacity and Splice Trays

The junction box can hold up to 288 fibers, organized in 12 splice trays, each supporting 24 cores. Some models allow for 20% additional capacity for future expansion . The splice trays are designed with adequate curvature radius to protect fibers and can be rotated like booklets for easy access .

Cable Ports

• Round ports: Typically 6–16 ports, with diameters ranging from 18mm to 26mm depending on the model .
• Oval port: 1 port, usually 38x70mm, allowing cable entry without cutting .
• Ports are heat-shrink or mechanical pressure sealed to ensure waterproofing and mechanical protection .

Mounting and Installation

The boxes support multiple installation methods:

• Wall-mounted
• Pole-mounted
• Aerial hanging
• Direct burial or duct installation

Material and Environmental Protection

• Constructed from high-strength engineering plastics with UV resistance and flame retardancy .
• IP68-rated, providing protection against dust and water ingress .
• Designed to withstand temperature ranges from -35℃ to 70℃, chemical corrosion, and mechanical stress .

Cable Compatibility

• Supports up to 7 cables with a maximum diameter of 38mm .
• Each port is designed to maintain fiber integrity and allow for future expansion.

Summary

While exact external dimensions (height, width, depth) are not universally specified, a typical 288-core dome or vertical fiber optic splice closure is a high-capacity, durable, and weather-resistant enclosure suitable for outdoor and indoor fiber network installations. It integrates multiple splice trays, flexible cable entry ports, and robust materials to ensure long-term reliability in harsh environments .