Backbone network digital communication cable

Abstract

The invention discloses a backbone network digital communication cable which comprises insulated conductors and an outer cable sheath. A padding tube is arranged in the outer cable sheath. The insulated conductors are placed on the periphery of the padding tube. The padding tube is located in the center of the outer cable sheath. Multiple pairs of stranded conductors are formed by the insulated conductors respectively. The backbone network digital communication cable has the advantages of being compact and stable in structure, strong in tension resistance and bending resistance, convenient to process and manufacture and capable of effectively guaranteeing the improvement in cable transmission frequency and speed.

Description

technical field [0001] The invention relates to a digital communication cable, in particular to a backbone network digital communication cable with digital signal and analog signal transmission compatibility. Background technique [0002] With the rapid development of the communication industry, the pace of data-based construction of user access networks is accelerating, and the amount of data cables used for network deployment is increasing. Digital communication cables are not only used in the internal network wiring of government agencies, enterprises and institutions and the integrated wiring system of intelligent buildings, but also with the acceleration of urban digitalization, digital communication cables are used in the backbone network of computer integrated wiring in newly built residential quarters, as well as in the cable network of users. It is more widely used in access network and other systems. At the same time, the rapid increase in the amount of communicat...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this structure and cable are: firstly, there are actually many gaps between the cable subunits bound by the marking ties, and the relative position between the cable subunits is only fixed by the cable sheath.

This not only increases the overall size of the finished cable, but also causes the twisted wires in the cable core and the mutual positions of the cable subunits to change due to the external forces such as bending and pulling during laying construction. Changes, especially in the case of multiple bends and steep bends in the laying line, are particularly obvious; it may even cause plastic deformation of the insulated single wire and changes in the structural parameters of the cable, resulting in a decline in cable transmission performance and severely limiting the data. Improvement of performance indicators such as operating frequency and transmission speed of communication cables

Secondly, because the cable of this structure must first tie up the marking tie to the line to form a cable sub-unit, and then twist a number of cable sub-units into a cable core and then extrude the outer sheath, there are many processing procedures and the process flow Long, which increases the consumption of cable ties and other defects

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