Method and product for improving broadband local cable structure stability

A technology for structural stability and local telephone cables, applied in the direction of insulated cables, communication cables, cables, etc., can solve the problems of reduced crosstalk defense and crosstalk, and achieve the effect of stable product structure, increased service life, and guaranteed stability.

Inactive Publication Date: 2009-04-08
浙江正导光电股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This structure is easy to cause crosstalk because the relative position between the wire pairs is not fixed. At this time, only when the pitches of the wire pairs in the unit are different and the adjacent pitches have a large pitch difference Crosstalk defense, and the twisted pitch range of broadband local telephone cables is small (9-25mm), if you want to design all the line-pair pitches to different values ​​in the same basic unit, it will inevitably cause the pitch difference between the line pairs to be too large Small, so that crosstalk defense is reduced

Method used

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  • Method and product for improving broadband local cable structure stability

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Embodiment Construction

[0013] Embodiment of the present invention: a broadband local telephone cable, which adopts the following method to improve stability: arrange six sub-units evenly surrounding one sub-unit to form a basic unit; then arrange six basic units evenly surrounding one basic unit, Make up the cable. Its structure is as figure 1 As shown, it includes the cable core 1 and the overall sheath that wraps the cable core 1. The cable core 1 is composed of seven basic units 7, and the basic units 7 are arranged in a manner that six basic units 7 evenly surround one basic unit 7; each basic unit 7 includes seven subunits 3, and the subunits 3 are arranged in such a way that six subunits 3 evenly surround one subunit 3. Each sub-unit 3 consists of a group, including four pairs of wires, each pair of wires is twisted by a pair of insulated core wires; each insulated core wire 2 has a layer of polyethylene (PE) or polypropylene (PP) The covering layer is wrapped outside each copper wire; the c...

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Abstract

The invention discloses a method used for improving the stability of broadband telephone cable and a product gained by applying the method; the method comprises the steps as follows: six sub-units are uniformly arranged by surrounding a sub-unit to form a basic unit; subsequently, six basic units uniformly surround a basic unit to form a cable; the cable comprises a cable core (1) and a total protection sleeve which wraps the cable core (1); the cable core consists of seven basic units (7) which are arranged in a way that six basic units (7) uniformly surround a basic unit (7); each basic unit (7) comprises seven sub-units (3) which are arranged in a way that six sub-units(3) uniformly surround a sub-unit (3). The method adopts reasonable arrangement type for the sub-unit and the basic units, and leads the formed cable to have stable structure and fixed relative position between line pairs and to have excellent anti-crosstalk effect.

Description

technical field [0001] The invention relates to a method for improving the structural stability of a broadband local telephone cable and a broadband local telephone cable obtained by using the method. The cable is an outdoor type used as a lead-in line between a remote optical switching unit and a user and for inter-building wiring. A data cable belongs to the technical field of broadband data cables. Background technique [0002] With the advent of the knowledge economy and the information age, fundamental changes have taken place in the communications industry. Modern communications are developing in the direction of digitization, integration, broadband, and intelligence. Computer communications, TV image transmission, high-speed data communications, and e-commerce The communication business is increasing day by day, and the telecommunication communication network is being gradually transformed from the original local telephone network into a data communication network pro...

Claims

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Application Information

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IPC IPC(8): H01B11/00H01B7/02H01B7/17H01B3/44
Inventor 罗英宝
Owner 浙江正导光电股份有限公司
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