Double-pair biaxial parallel high-speed transmission cable and manufacturing method thereof

Abstract

The invention relates to a double-pair biaxial parallel high-speed transmission cable and a manufacturing method thereof. The cable comprises two cable cores which are respectively coated with a first shielding layer, a polyester tape lapping layer coated outside the two cable cores, a second shielding layer coated outside the polyester tape lapping layer, a tinned copper braid coated outside the second shielding layer, and a sheath layer coated outside the tinned copper braid, wherein each cable core consists of two insulating core wires which are compactly arranged in parallel and a drainage wire which is arranged between the two insulating core wires; and each insulating core wire consists of a solid metal wire and a foamed polyolefin insulating layer which is coated on the outer surface of the solid metal wire. The invention has the advantages that: 1, double-link high-speed transmission is realized; 2, the synchronism of signal transmission is improved; and 3, anti-electromagnetic interference performance is improved.

Description

technical field [0001] The invention relates to a signal transmission line, in particular to a double-pair double-axis parallel high-speed transmission cable, which is mainly used for high-speed transmission and exchange of super-large-capacity audio, video, image and other data signals, such as high-speed data communication network, data center convergence And cluster systems, super-large capacity data storage and data hard drives, cloud computing terminal systems, etc. Background technique [0002] The most common existing data signal transmission is the symmetrical twisted pair technology. Twisted pair wires use two insulated copper wires to be twisted together at a certain pitch, which can reduce the degree of interference to the signal due to electromagnetic coupling between circuits. Its advantages are simple structure, low cost, moderate transmission distance, and certain anti-crosstalk ability. It is currently the most widely used product for digital signal transmis...

AI Technical Summary

Problems solved by technology

[0005] In high-speed data communication networks, data center aggregation and cluster systems, ultra-large-capacity data storage and data hard disks, and cloud computing terminal systems, symmetrical twisted pair technology is limited by the structure of the product itself and transmission technology. It is difficult to meet the technical requirements of high-speed data transmission and information exchange in terms of transmission synchronization and stability.

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