High-speed high-performance communication cable and its manufacturing process

A data communication, high-performance technology, applied in the direction of cable/conductor manufacturing, insulated cables, twisted/quad-stranded cables, etc., can solve problems such as difficulty, return loss, signal loss, etc. Achieve the effect of consistent arrangement sequence, high concentricity and excellent performance

Inactive Publication Date: 2006-09-13
李明斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During manufacturing, it is difficult to ensure the concentricity between the conductor and the first and second insulating layers; and the eccentricity caused by insufficient concentricity makes the impedance of the cable fluctuate greatly
The mismatch of impedance causes a part of the signal to be reflected to the transmission source at a specific frequency, so that the signal is lost, and return loss occurs.
The concentricity of the cable and the cylindricity of the cable core are poor, which causes the signal to radiate outward on the one hand, and on the other hand, there is no way to offset all external interference, so far-end crosstalk occurs
[0005] In addition, in the above-mentioned technical solution, there is no twisted wire pitch for every two twisted wires to form a pair of twisted wires, that is, the distance between adjacent twisted crests of the same cable in a single pair of twisted wires (referred to as "twisted wire"). distance") description
Since the intersecting points of the lay lengths of each pair of twisted wires are not staggered, each pair of twisted wires interferes with each other; it is easy to generate near-end crosstalk

Method used

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  • High-speed high-performance communication cable and its manufacturing process
  • High-speed high-performance communication cable and its manufacturing process
  • High-speed high-performance communication cable and its manufacturing process

Examples

Experimental program
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Effect test

Embodiment approach 1

[0033] like figure 1 As shown, the data communication cable consists of four pairs of white-green, white-orange, white-blue, and white-brown wires twisted together to form a pair of cables wrapped with an insulating sheath. The lay length of each pair of signal wires is 13.4 in turn. ±0.5mm, 15.7±0.5mm, 18.4±0.5mm, 20.7±0.5mm. The four pairs are twisted together in the order of white-blue, white-green, white-brown and white-orange. The core 1 is made of a stretched steel core 11 coated with a copper coating layer 12 and then plated with a silver layer 13. The insulating sheath 2 with an outer diameter of 0.95±0.05mm and the insulating sheath 3 with an outer diameter of 5.3mm are made of Teflon (Teflon) production.

[0034] Its specific processing technology is as follows:

[0035] 1. The production process of silver-plated copper-clad steel cable core:

[0036] 1. Stretch the φ6.0mm steel bar to φ2.2mm;

[0037] 2. Stretch the steel bar of φ2.2mm and simultaneously anneal...

Embodiment approach 2

[0050] Embodiment 2: Except that the cable core is replaced by silver-plated copper, other structures and materials are the same.

Embodiment approach 3

[0051] Embodiment 3: Except that the cable core is replaced by bare copper, other structures and materials are the same.

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PUM

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Abstract

A high speed data communication cable used on network is prepared as forming cable by four pairs of cable lines as each cable line pair being prepared by twisting two pieces of cable lines and being covered with insulation protective sheath then twisting four pairs together in certain sequence, forming each signal line by conductor cable core and insulation cover using copper covered steel as conductor cable core, applying CMP Teflon as material to prepare insulation protective sheath and insulation cover.

Description

technical field [0001] The invention relates to a signal transmission cable, in particular to a high-speed and high-performance data communication cable for a network with bidirectional simultaneous input and output of digital signals and a manufacturing process thereof. Background technique [0002] In the utility model whose announcement number is CN2266183, the announcement date is October 29, 1997, and the name is a high-speed high-performance data communication cable for computer network, it is disclosed that it is composed of eight cables with the same structure, and every two cables are twisted together. Become a pair, and set an outer sheath on the outside of the four pairs. Each cable is composed of a conductor, a first insulating layer, a second insulating layer, and a color ring. The transmission performance of the utility model is greatly improved, the transmission rate reaches 100 Mbps, and the distributed capacitance is small, the attenuation is reduced, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/02H01B7/295H01B13/02H01B13/00
Inventor 李明斌
Owner 李明斌
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