data cable

Abstract

The invention discloses a data cable. The data cable comprises a cross-shaped framework, four groups of line pairs, four covering plates, waterproof cloth and a sheath, wherein the cross-shaped framework is provided with four mounting grooves; side walls of the mounting grooves are provided with a plurality of first limiting raised lines; heights of the first limiting raised lines gradually change along a radial direction of the framework; the outer the first limiting raised lines are, the greater the heights of the first limiting raised lines are; the four groups of line pairs are arranged in corresponding accommodating spaces respectively; the four mounting grooves cover corresponding mounting grooves respectively, and are provided with second limiting raised lines which are matched with the line pairs; the waterproof cloth wraps outer sides of the framework and the covering plates; and the sheath wraps an outer side of the waterproof cloth. Through the first limiting raised lines, the line pairs can be limited effectively and prevented from moving and being deformed, so that distances among the line pairs are kept more uniform and stable, and the crosstalk disturbance resistance of the cable is improved. Through the covering plates, the waterproof cloth can be prevented from being embedded into the mounting grooves and influencing the data cable quality. Through the second limiting raised lines, the positions of the line pairs can be further limited, and the line pair positions are ensured.

Description

Technical field [0001] The invention relates to the field of signal transmission, in particular to data cables. Background technique [0002] With the rapid development of optical communication technology, optical cables have been widely used in the backbone network and interoffice relay lines of wired communication networks, and it has become an inevitable trend for optical fibers to enter the access network. However, the cost of laying optical cables is too high, and the cost of connectors and terminal optical-electrical conversion is expensive. Therefore, for a long period of time before the popularization of optical fiber, the subscriber lines of the access network will still be mainly metal cables. As a metal cable, data cable is currently an ideal transmission medium for broadband access networks. It has the advantages of low manufacturing cost, simple structure, good scalability, and easy network upgrades. It is mainly used for building integrated wiring and residential ar...

AI Technical Summary

Problems solved by technology

It solves the problem that the relative position of each group of wire pairs of the existing data cable is easy to shift and the anti-crosstalk performance is weak

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