Optical fiber cable

An optical fiber cable, optical fiber technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of large mechanical tension and crushing force, loose structure in the cable, disordered optical fiber order, etc., and achieves increased tensile strength, compact structure, and core count big effect

Inactive Publication Date: 2012-10-31
宏安集团有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Butterfly lead-in optical cable is mainly used for FTTH home optical cable. At present, only 1 core or 2 cores are widely used. Large mechanical tension, more than 12 cores need to be cabled multiple times, the structure is bloated, and the cable diameter is large; the distribution optical cable is mainly used for indoor horizontal wiring, the cable diameter is small, the internal structure of the cable is loose, and the optical fiber arrangement is disordered , which brings trouble to find fibers, and is not easy to withstand large mechanical tension and crushing force

Method used

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  • Optical fiber cable

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Embodiment Construction

[0013] Depend on figure 1 It can be seen that an optical fiber cable includes a subunit 4, a central strength member 5, an increase belt 9, and an outer sheath 10. The end face of the subunit 4 is circular with fan-shaped grooves 3 symmetrically distributed on the circumference. The subunit There are optical fibers 2 and strength members 1 inside, subunits 4 are twisted around the central strength member 5, and a water-blocking tape 8 is provided on the outside, and an aramid fiber reinforcement tape 9 is arranged longitudinally on the outside of the water-blocking tape 8, and the outside of the reinforcement tape 9 A protective layer of outer sheath 10 is provided, and a tearing rope 6 is placed between the reinforcement band 9 and the outer sheath 10, which is beneficial for stripping the outer sheath of the optical cable during construction.

[0014] In the subunit 4, the optical fiber is placed in the center of the circular end face, and there are two non-metallic strength...

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Abstract

The invention relates to the filed of outdoor optical fiber cable home entrance and indoor FTTH (Fiber To The Home) network cabling. An optical fiber cable comprises a subunit, a central reinforcement piece, an enhancing belt and a sheath, wherein the end face of the subunit is a round on which fan-shaped grooves are symmetrically distributed, the subunit is internally provided with an optical fiber and the reinforcement piece, the subunit is twisted around the central reinforcement piece, the outside of the subunit is provided with a water-blocking tape, the outside of the water-blocking tape is longitudinally provided with an aramid fiber enhancing belt, a sheath protective layer is arranged at the outside of the aramid fiber enhancing belt, and a rip cord is placed between the enhancing belt and the sheath. The optical fiber cable is rational in design, compact in structure, easy to manufacture, low in cost, light in weight, excellent in flexibility, convenient to use and maintain, high in optical fiber density, easy to find and separate the optical fibers, excellent in flame resistance, and capable of being used for indoor multi-purpose cabling and outdoor optical distribution cable.

Description

technical field [0001] The invention relates to the field of optical cables for outdoor optical cable entry and indoor FTTH network wiring, in particular to an optical fiber cable. Background technique [0002] With the maturity of passive optical network EPOU and GPOU technologies, FTTH network cabling is booming and widely used in commercial buildings, residential quarters and industrial parks. It has comprehensive functions such as high-speed Internet access, VoIP, and IPTV. In the construction of FTTH lines, the transmission medium is optical cables, including feeder optical cables, distribution optical cables, and home optical cables. Generally, outdoor optical cables are used for feeder optical cables and distribution optical cables, and indoor optical cables are used for home optical cables. [0003] At present, when outdoor optical cables enter buildings, ordinary stranded or central tube optical cables are mostly used, and the reinforcements are made of phosphating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 范云丽赵英波张保军王秋生
Owner 宏安集团有限公司
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