CN101404192A - Method and product for improving broadband local cable structure stability - Google Patents
Method and product for improving broadband local cable structure stability Download PDFInfo
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- CN101404192A CN101404192A CNA2007102019360A CN200710201936A CN101404192A CN 101404192 A CN101404192 A CN 101404192A CN A2007102019360 A CNA2007102019360 A CN A2007102019360A CN 200710201936 A CN200710201936 A CN 200710201936A CN 101404192 A CN101404192 A CN 101404192A
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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
The present invention relates to a kind of structural stability raising method of technique of broadband local communications cables and use the resulting technique of broadband local communications cables of this method, this cable is a kind ofly to be used for long-range smooth crosspoint to the outdoor type data cable of making between lead-in and building wiring usefulness between the user, belongs to wideband data cable technology field.
Background technology
Arrival along with kownledge economy, information age, fundamental change has taken place in communication industry, the digitlization of modern communications forward, synthesization, broadband, intelligent direction development, broadband communication traffics such as computer communication, television image propagation, high-speed data communications, ecommerce are growing, the telecommunication communication network just progressively is transformed into the data communication network that numeral access and broadband access are provided by original local network.But traditional HYA local cable is as the main body of existing Access Network, and frequency band is narrow, speed is low, loss is high, can not adapt to the requirement of data communication, and becomes " bottleneck " that Access Network transmits along with the develop rapidly of data communication technology.Technique of broadband local communications cables is by the improvement of production technology etc., improved the transmission performance such as decay, characteristic impedance, cross-talk, propagation delay time of cable, make the cable operating frequency bring up to 30MHz even higher from 1MHz, product has the characteristics of suitable digital data transmission, is a kind ofly to be used for long-range smooth crosspoint to the outdoor type data cable of making (building wiring system) between lead-in and building wiring usefulness between the user.Therefore technique of broadband local communications cables can improve user's access bandwidth, adapts to the needs of Communication Development, increases substantially line to taking up rate, and personal computer online, TV and telephone channel are provided simultaneously.This cable is compared with optical cable HFC, FTTC, can make full use of the original infrastructure resources of telecommunication bureau, has good economic benefit and social benefit.But present existing broadband cable generally adopts the stranded formation base unit of concentric type (25 pairs), and the line that base unit is had nothing in common with each other by pitch is to forming.This structure because of its line to relative position fixing, cause cross-talk easily, at this moment have only line in the unit that pitch is had nothing in common with each other and adjacent segments just can have higher crosstalk ratio when again bigger pitch difference being arranged, and technique of broadband local communications cables pair twist pitch range is little by (9～25mm), want same base unit with wired words that pitch design become different value, will certainly cause line too small, and crosstalk ratio is reduced a pitch difference.
Summary of the invention
The objective of the invention is to, a kind of method that improves the structural stability of technique of broadband local communications cables is provided, and adopt the resulting a kind of Wideband local cable of this method, this method is simple and easy to realize, this construction of cable is stable, the serviceability excellence is a kind ofly to be used for long-range smooth crosspoint to the outdoor type data cable of making between lead-in and building wiring usefulness between the user.
Technical scheme of the present invention: a kind of method that improves the technique of broadband local communications cables structural stability, this method are six subunits evenly to be surrounded a subunit arrange, and form a base unit; Again six base units are evenly surrounded a base unit and arrange, form cable.
The local telephone network broadband cable that above-mentioned method obtains, this cable comprise total sheath of cable core 1 and parcel cable core 1, and this cable core 1 is made up of seven base units 7, and base unit 7 evenly surrounds a base unit 7 by six base units 7 and arranges; Each base unit 7 comprises seven subunits 3, and subunit 3 evenly surrounds a subunit 3 by six subunits 3 and arranges.
Aforesaid technique of broadband local communications cables, to forming, every pair of line is to being formed by a pair of insulation heart yearn 2 pair twists by one group of line for each subunit 3.
Aforesaid technique of broadband local communications cables, to forming, every pair of line is to being formed by a pair of insulation heart yearn 2 pair twists by four pairs of lines for each subunit 3.
Aforesaid technique of broadband local communications cables, every eradication edge heart yearn 2, each subunit 3 and each base unit 7 also comprise parcel one deck coating layer separately; Between cable core 1 and total sheath, also has one deck stranding integument 4, in order to the fixing structure of cable core 1.
Aforesaid technique of broadband local communications cables, the coating layer of described insulation heart yearn 2 is polyolefin insulation layer; Described stranding integument 4 material therefors are polyester belts; Described total sheath has two layers, and internal layer is an aluminium-plastic tape 5, and skin is a pe sheath 6.
Aforesaid technique of broadband local communications cables, the coating layer of described insulation heart yearn 2 are polyethylene or polypropylene.
Subunit of the present invention adopts six subunits evenly to surround the arrangement mode of a subunit, and base unit adopts six base units evenly to surround the arrangement mode of a base unit, this arrangement mode has effectively guaranteed the stability of cable, therefore, the present invention is simple and easy to realize, the product structure of gained is highly stable, effectively guaranteed line to relative position fixing, thereby have a good anti-cross-talk effect.Serviceability is very excellent, is a kind ofly can be widely used in long-range smooth crosspoint to the outdoor type data cable of making wiring usefulness between lead-in and building between the user.One deck coating layer that each base unit wraps up separately and total sheath adopt the comprehensive bonding sheath structure of moisture-proof layer aluminium-plastic tape, selecting for use of these coating layers and sheath material, the insulation property of cable have been guaranteed, further guarantee every serviceability of this technique of broadband local communications cables, increased useful life.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Embodiment
Embodiments of the invention: a kind of technique of broadband local communications cables, adopted following method to improve stability: six subunits evenly to be surrounded a subunit arrange, form a base unit; Again six base units are evenly surrounded a base unit and arrange, form cable.Its structure comprises total sheath of cable core 1 and parcel cable core 1 as shown in Figure 1, and this cable core 1 is made up of seven base units 7, and base unit 7 evenly surrounds a base unit 7 by six base units 7 and arranges; Each base unit 7 comprises seven subunits 3, and subunit 3 evenly surrounds a subunit 3 by six subunits 3 and arranges.Each subunit 3 comprises four pairs of lines to forming by one group, and every pair of line is to being formed by a pair of insulation heart yearn 2 pair twists; Every eradication edge heart yearn 2 has layer of polyethylene (PE) or polypropylene (PP) coating layer, is wrapped in every copper conductor outside; The coating layer of each base unit 7 parcel is selected PETG (PET) or polyvinyl chloride (PVC) or polyethylene (PE) for use; All the other coating layers are all by the national standard selection; Between cable core 1 and total sheath, also has one deck polyester belt stranding integument 4, in order to the fixing structure of cable core 1.Total sheath has two layers, and internal layer is an aluminium-plastic tape 5, the characteristics that have anti-electromagnetism interference and prevent to make moist, and skin is a resisting environmental stress and cracking, the black polyethylene of weatherability (PE) sheath 6, total sheath forms by comprehensive bonding.
The arrangement mode of base unit 7 of the present invention and subunit 3 can abbreviate the arrangement mode of 1+6 as, and this mode is regular stranded owing to adopting, consolidation rounding behind the stranding, so structure is highly stable.Cable core 1 adds a subunit cable core 8 more in addition, has 200 couples of technique of broadband local communications cables HSYA 200 * 2 * 0.5 that line is right with seven base units, 7 common formation.
Claims (7)
1. method that improves the technique of broadband local communications cables structural stability is characterized in that: this method is six subunits evenly to be surrounded a subunit arrange, and forms a base unit; Again six base units are evenly surrounded a base unit and arrange, form cable.
2. the technique of broadband local communications cables that method according to claim 1 obtains, this cable comprises total sheath of cable core (1) and parcel cable core (1), it is characterized in that: this cable core (1) is made up of seven base units (7), and base unit (7) evenly surrounds a base unit (7) by six base units (7) and arranges; Each base unit (7) comprises seven subunits (3), and subunit (3) evenly surrounds a subunit (3) by six subunits (3) and arranges.
3. technique of broadband local communications cables according to claim 2 is characterized in that: to forming, every pair of line is to being formed by a pair of insulation heart yearn (2) pair twist by one group of line for each subunit (3).
4. technique of broadband local communications cables according to claim 3 is characterized in that: to forming, every pair of line is to being formed by a pair of insulation heart yearn (2) pair twist by four pairs of lines for each subunit (3).
5. according to claim 3 or 4 described technique of broadband local communications cables, it is characterized in that: every eradication edge heart yearn (2), each subunit (3) and each base unit (7) also comprise parcel one deck coating layer separately; Between cable core (1) and total sheath, also has one deck stranding integument (4).
6. technique of broadband local communications cables according to claim 5 is characterized in that: the coating layer of described insulation heart yearn (2) is a polyolefin insulation layer; Described stranding integument (4) material therefor is a polyester belt; Described total sheath has two layers, and internal layer is aluminium-plastic tape (5), and skin is pe sheath (6).
7. technique of broadband local communications cables according to claim 6 is characterized in that: the coating layer of described insulation heart yearn (2) is polyethylene or polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102019360A CN101404192A (en) | 2007-09-30 | 2007-09-30 | Method and product for improving broadband local cable structure stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102019360A CN101404192A (en) | 2007-09-30 | 2007-09-30 | Method and product for improving broadband local cable structure stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101404192A true CN101404192A (en) | 2009-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102019360A Pending CN101404192A (en) | 2007-09-30 | 2007-09-30 | Method and product for improving broadband local cable structure stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101404192A (en) |
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2007
- 2007-09-30 CN CNA2007102019360A patent/CN101404192A/en active Pending
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Open date: 20090408 |