Digital symmetrical cable and manufacturing technology thereof

Abstract

The invention provides a digital symmetrical cable and a manufacturing technology thereof. The digital symmetrical cable comprises pair-twisted groups, pair twisting shielding layers, an inner shielding layer, an insulating layer, an outer shielding layer and an outer protecting layer which are sequentially arranged from the center to the outside, wherein each pair-twisted group comprises insulating layers and two copper cores, each insulating layer is wrapped outside each copper core, and the two copper cores are pair-twisted to form the pair-twisted group; the pair twisting shielding layers are aluminium foil shielding layers; the inner shielding layer is an aluminium foil shielding layer; the insulating layer is made from extruded crosslinked polyethylene; and the outer shielding layer is a copper wire braided shielding layer. As the pair-twisted groups are respectively shielded, radio-frequency interference is lowered, and accordingly, expensive electronic equipment is not needed for reducing crosstalk. The wire pair shielding and total shielding are adopted to ensure that the cable supports high transmission rate, the integral bandwidth higher than 600MHz is provided, and the highest bandwidth can reach 1.2GHz. The digital symmetrical cable can support various applications including data, multimedia, wideband videos and CATV (Community Antenna Television) on one channel and has extremely high security.

Description

technical field [0001] The invention relates to a cable and its production process, in particular to a digital symmetrical cable and its production process. Background technique [0002] With the rapid development of computer technology, the amount of network information has increased sharply, and users' requirements for information transmission speed have continued to increase. As a communication platform for the network, the bandwidth of the integrated wiring system has also increased accordingly. The development of symmetrical digital communication cables for integrated wiring systems, referred to as digital cables, has also attracted more and more attention. High-bandwidth applications require the latest network cabling technology. Category 6 cabling technology meets today's commercial applications with its 250MHz bandwidth. It represents unshielded twisted pair and shielded pair, that is, total shielded pair The highest bandwidth capability that can be supported. H...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a digital symmetrical cable to solve the problem that the bandwidth existing in the prior art cannot meet the needs of people and that crosstalk is prone to occur due to high-frequency signals in the transmission of 10 Gigabit Ethernet, and the distance is limited.

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