Symmetrical parallel flat drop optical cable

Abstract

The invention belongs to the technical field of communication optical cables and relates to a symmetrical parallel flat drop optical cable. Each of two identical independent optical fiber units whichare arranged in parallel is formed by arranging two optical fibers in a loose tube and filling the loose tube with fiber paste; two non-metal reinforcing pieces are parallel to the optical fiber unitsand are symmetrically arranged on the left side and right side of the optical fiber units respectively; and the optical fiber units and the non-metal reinforcing pieces are wrapped together through aflat sheath. The optical cable is mainly characterized in that a pressure reduction air chamber is arranged at a central position in the sheath to separate the two optical fiber units contained in the optical cable; the pressure reduction air chamber not only reduces an extrusion force applied to the loose tubes by of the material of the sheath, but also facilitates the separation of the two optical fiber units during construction. According to the symmetrical parallel flat drop optical cable of the invention, the optical fibers are slightly bent under the action of the fiber paste to generate excess length, so that the optical fibers are protected from loss. The optical cable has a good flame-retardant effect and is unlikely to harm human bodies; the optical cable comprises the two independent optical fiber units, so that the material consumption of the optical cable is low, and cost can be saved; and the optical cable is suitable for office buildings, residential quarters and machine rooms, and serves for signal transmission more efficiently.

Description

technical field [0001] The invention belongs to the technical field of communication optical cables, in particular to a symmetrical parallel flat lead-in optical cable. Background technique [0002] In recent years, various operators have vigorously promoted the construction and deployment of FTTH (fiber-to-the-home) according to the national broadband coverage plan. "Convergence" has promoted the further development of the radio and television network. The emergence of new services such as high-definition television, high-definition interactive video-on-demand, high-speed Internet access, video conferencing, smart home, cloud storage, cloud applications, and cloud services requires more broadband and more stable network support. Fiber optic cables will lead to problems such as repeated construction and increased construction difficulties. Therefore, it is necessary to develop a drop cable that meets more structural requirements and performance requirements, so as to impro...

AI Technical Summary

Problems solved by technology

The emergence of new services such as high-definition television, high-definition interactive video-on-demand, high-speed Internet access, video conferencing, smart home, cloud storage, cloud applications, and cloud services requires more broadband and more stable network support. Fiber optic cables will lead to problems such as repeated construction and increased construction difficulties

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