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Dimensions of a 288-core optical fiber junction box

Fiber optic splice closure knowledge brief Published 11 Apr 2023

Prepared for preliminary research by the RIVO OPTICAL knowledge desk. Confirm cable count, splice capacity, sealing class, tray layout, protection sleeves and installation requirements against current standards and product documentation.

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 .

Dimensions of a 288-core optical fiber junction box - RIVO MULTITRADE OPTICAL SYSTEMS [PDF]

Dimensions of a 288-core optical fiber junction box

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Technical note

This reference is intended for preliminary fiber optic splice closure research. Compatibility, splice capacity, sealing class, tray layout, protection sleeves, installation methods, test limits and applicable standards must be verified for the specific project.

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