CN202584911U - Data cable of broadband and high capacity for local area network - Google Patents
Data cable of broadband and high capacity for local area network Download PDFInfo
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- CN202584911U CN202584911U CN 201220108002 CN201220108002U CN202584911U CN 202584911 U CN202584911 U CN 202584911U CN 201220108002 CN201220108002 CN 201220108002 CN 201220108002 U CN201220108002 U CN 201220108002U CN 202584911 U CN202584911 U CN 202584911U
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Abstract
Disclosed is a data cable of broadband and high capacity for local area network, comprising four wire-twisting units formed by four wire-twisting pairs, Wherein the pitch of a first wire-twisting unit and a third wire-twisting unit is 100mm; the pitch of a second wire-twisting unit and a fourth wire-twisting unit is 120mm; the wire-twisting unit is formed by twisting the first wire-twisting pair, the second wire-twisting pair, the third wire-twisting unit, and the fourth wire-twisting unit which are arranged in an anticlockwise order; the pitch of the first wire-twisting pair and the third wire-twisting pair is smaller than that of the second wire-twisting pair and the fourth wire-twisting pair; the first wire-twisting pair and the third wire-twisting pair as well as the second wire-twisting pair and the fourth wire-twisting pair are arranged in alternate; the pitch of the first wire-twisting pair is greater than that of the third wire-twisting pair while the pitch of the second wire-twisting pair is smaller than that of the fourth wire-twisting pair; and the external surfaces of the four wire-twisting units are coated via a mica composite belt. While improving the flame retardation and flame resistance of a cable, the data cable of the utility model reduces the near-end overhearing interference of the cable and raises the far end crosstalk ratio of the cable, thereby improving the signal transmission quality of the cable.
Description
Technical field
The utility model office of relating to uses symmetrical cable, relates in particular to the data cable of a kind of local area network (LAN) with the broadband high power capacity.
Background technology
Along with economic development and urban construction and development, fire damage is in rising trend, therefore all the control of fire is very paid attention to both at home and abroad.Cable is as one of the important generation source of fire and propagating source; Because producing in a large number, toxic and harmful causes the personnel death during its cable fire; Equipment is undermined the harm that personnel can not in time be withdrawn owing to smog, has more and more seriously influenced the generation of disaster.
Be applied to the fire-retardant broadband type programme-controlled exchange telecommunication cable of programmed communication system at present, be in the starting stage at home, domestic have part enterprise also developing portioned product; Generally be to be coated on uniformly on single core copper conductor with high speed insulated type polyethylene; Carry out pair twist through pair twist equipment, use insulation PE polyester belt to coat many pair twists then, use polyvinylchloride to carry out sheath at last and extrude line; This kind structure is unfavorable for the generation source of fire and the control of propagating source, and transmission bandwidth is very narrow.
Fast development along with contemporary program controlled switch technology; Require that the programmed communication circuit is transmitting digitized, high power capacity and broadband; And between programme-controlled exchange district or exchange along with the optimization of system equipment increases, the also corresponding aggravation of electromagnetic interference that circuit is caused, and then require this type of cable product to have the characteristic of electromagnetic compatibility; And, require this type of cable to have high flame resistance according to the regulation of phase security protection technical specification.Therefore, to above requirement and characteristics, our emphasis has carried out optimal design to the structural design and the selection of cable.
Summary of the invention
The utility model provides the data cable of a kind of local area network (LAN) with the broadband high power capacity; This data cable improves the fire-retardant fireproof property while of cable; Also reduce the interference of cable near-end crosstalk and improve the cable far-end crosstalk ratio; Improve the cable transmission signal quality, thereby adapted to broadband in the programme-controlled exchange communication system, digitized transmission requirement.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of local area network (LAN) is with the data cable of broadband high power capacity; Comprise: four by the twisted wire unit of four twisted wires to forming, and these four twisted wire unit are respectively the first twisted wire unit, the second twisted wire unit, the 3rd twisted wire unit and the 4th twisted wire unit, wherein; The first, the pitch of the 3rd twisted wire unit is 100mm, and the pitch of the second, the 4th twisted wire unit is 120mm; Said twisted wire unit by first twisted wire of counterclockwise arrangement to, second twisted wire to, the 3rd twisted wire twisted wire unit to forming with the 4th twisted wire strand; First twisted wire to the right pitch of the 3rd twisted wire less than second twisted wire to the pitch right with the 4th twisted wire; First twisted wire to the 3rd twisted wire pair and second twisted wire to the 4th twisted wire to alternately; The right pitch of said first twisted wire is greater than the right pitch of the 3rd twisted wire, and the right pitch of said second twisted wire is less than the right pitch of the 4th twisted wire;
One mica composite band is wrapped in these four twisted wire unit outer surfaces; One copper wire braid is coated on said mica composite band outer surface; One low smoke and zero halogen restrictive coating is coated on said copper wire braid outer surface, one as the copper cash of drain wire between said mica composite band and copper wire braid.
It is following that technique scheme is further improved technical scheme:
1. in the such scheme, the right pitch of said first twisted wire is 15.5mm, and the right pitch of said second twisted wire is 19.0mm, and the right pitch of said the 3rd twisted wire is 13.5mm, and the right pitch of said the 4th twisted wire is 22.5mm.
2. in the such scheme, said twisted wire forms the copper conductor that the tin layer is arranged by two plating is stranded.
3. in the such scheme, said copper cash outer surface is coated with the tin layer.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
The utility model local area network (LAN) is with the data cable of broadband high power capacity; Its four twisted wire unit adopt specific strand that pitch is made up; And four twisted wires make up pitch also adopting specific strand in each twisted wire unit; Thereby symmetrical cable reduces the interference of cable near-end crosstalk and improves the cable far-end crosstalk ratio, has improved the cable transmission signal quality, thereby has adapted to broadband in the programme-controlled exchange communication system, digitized transmission requirement; Secondly, improved signal transmission quality, improved the fire-retardant fireproof property of cable and alleviate purposes such as outside electromagnetic interference and Digital Transmission with the tropism to the full extent, the circuit effective propagation path also obtains certain expansion; Once more, the tinned conductor wire sheathing also helps further reducing the interference of cable near-end crosstalk and improves the cable far-end crosstalk ratio, has improved the cable transmission quality of signals.
Description of drawings
Accompanying drawing 1 is the data cable structural representation of the utility model local area network (LAN) with the broadband high power capacity.
In the above accompanying drawing: 1, tin layer; 2, twisted wire unit; 21, the first twisted wire unit; 22, the second twisted wire unit; 23, the 3rd twisted wire unit; 24, the 4th twisted wire unit; 31, first twisted wire is right; 32, second twisted wire is right; 33, the 3rd twisted wire is right; 34, the 4th twisted wire is right; 4, mica composite band; 5, copper wire braid; 6, low smoke and zero halogen restrictive coating; 7, copper cash; 8, copper conductor.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of local area network (LAN) is with the data cable of broadband high power capacity; Comprise: four by the twisted wire unit 2 of four twisted wires to forming; These four twisted wire unit 2 are respectively the first twisted wire unit 21, the second twisted wire unit 22, the 3rd twisted wire unit 23 and the 4th twisted wire unit 24; Wherein, the pitch of the first, the 3rd twisted wire unit 21,23 is 100mm, and the pitch of the second, the 4th twisted wire unit 22,24 is 120mm; Said twisted wire unit 2 by first twisted wire of counterclockwise arrangement to 31, second twisted wire to the 32, the 3rd twisted wire to the 33 and the 4th twisted wire to the 34 stranded twisted wire unit 2 that form; First twisted wire to the 31 and the 3rd twisted wire to 33 pitch less than second twisted wire to the 32 and the 4th twisted wire to 34 pitch; First twisted wire to the 31 and the 3rd twisted wire to 33 and second twisted wire to the 32 and the 4th twisted wire to 34 alternately; Said first twisted wire to 31 pitch greater than the 3rd twisted wire to 33 pitch, said second twisted wire to 32 pitch less than the 4th twisted wire to 34 pitch;
One mica composite band 4 is wrapped in these four twisted wire unit 2 outer surfaces; One copper wire braid 5 is coated on said mica composite band 4 outer surfaces; One low smoke and zero halogen restrictive coating 6 is coated on said copper wire braid 5 outer surfaces, one as the copper cash 7 of drain wire between said mica composite band 4 and copper wire braid 5.
Above-mentioned first twisted wire is 15.5mm to 31 pitch, and said second twisted wire is 19.0mm to 32 pitch, and said the 3rd twisted wire is 13.5mm to 33 pitch, and said the 4th twisted wire is 22.5mm to 34 pitch.
Above-mentioned twisted wire has copper conductor 8 stranded formation of tin layer to 31,32,33,34 by two plating.
Above-mentioned copper cash 7 outer surfaces are coated with tin layer 1.
Above-mentioned mica composite band technical indicator:
Be suitable for fire-resistant scope: 800～1000 ℃;
Tensile strength: >=75N/cm;
Dielectric strength: >=9.5Kv/mm;
In the cable production process, material, equipment, frock etc. are carried out science, reasonably design and control, coat becoming core to carry out mica aluminium foil composite band, and use the zinc-plated braided wires of multiply to weave.
It is that 38% low smoke and zero halogen protective cover material carries out sheath that total braid cable core is used oxygen index, and the insulation shrinkage test :≤5% (treatment temperature: 232 ± 2 ℃, handled 1 hour), the detection of product: the electric property to product detects evaluation.Product is monitored in the application system running status.
When adopting above-mentioned local area network (LAN) with the data cable of broadband high power capacity; Its four twisted wire unit adopt specific strand that pitch is made up; And four twisted wires make up pitch also adopting specific strand in each twisted wire unit; Thereby symmetrical cable reduces the interference of cable near-end crosstalk and improves the cable far-end crosstalk ratio, has improved the cable transmission signal quality, thereby has adapted to broadband in the programme-controlled exchange communication system, digitized transmission requirement; Secondly, improved signal transmission quality, improved the fire-retardant fireproof property of cable and alleviate purposes such as outside electromagnetic interference and Digital Transmission with the tropism to the full extent, the circuit effective propagation path also obtains certain expansion; Once more, the tinned conductor wire sheathing also helps further reducing the interference of cable near-end crosstalk and improves the cable far-end crosstalk ratio, has improved the cable transmission quality of signals.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (4)
1. a local area network (LAN) is with the data cable of broadband high power capacity; It is characterized in that: comprising: four by the twisted wire unit (2) of four twisted wires to forming; These four twisted wire unit (2) are respectively the first twisted wire unit (21), the second twisted wire unit (22), the 3rd twisted wire unit (23) and the 4th twisted wire unit (24); Wherein, the pitch of the first, the 3rd twisted wire unit (21,23) is 100mm, and the pitch of the second, the 4th twisted wire unit (22,24) is 120mm; Said twisted wire unit (2) by first twisted wire of counterclockwise arrangement to (31), second twisted wire to (32), the 3rd twisted wire to (33) and the 4th twisted wire to (34) the stranded twisted wire unit (2) that forms; First twisted wire to (31) and the 3rd twisted wire to the pitch of (33) less than second twisted wire to (32) and the 4th twisted wire pitch to (34); First twisted wire to (31) and the 3rd twisted wire to (33) and second twisted wire to (32) and the 4th twisted wire to (34) alternately; Said first twisted wire to the pitch of (31) greater than the pitch of the 3rd twisted wire to (33), said second twisted wire to the pitch of (32) less than the pitch of the 4th twisted wire to (34);
One mica composite band (4) is wrapped in this four twisted wire unit (2) outer surface; One copper wire braid (5) is coated on said mica composite band (4) outer surface; One low smoke and zero halogen restrictive coating (6) is coated on said copper wire braid (5) outer surface, and a copper cash as drain wire (7) is positioned between said mica composite band (4) and the copper wire braid (5).
2. data cable according to claim 1; It is characterized in that: said first twisted wire is 15.5mm to the pitch of (31); Said second twisted wire is 19.0mm to the pitch of (32); Said the 3rd twisted wire is 13.5mm to the pitch of (33), and said the 4th twisted wire is 22.5mm to the pitch of (34).
3. data cable according to claim 1 is characterized in that: said twisted wire is had stranded formation of copper conductor (8) of tin layer by two plating to (31,32,33,34).
4. data cable according to claim 1 is characterized in that: said copper cash (7) outer surface is coated with tin layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108002 CN202584911U (en) | 2012-03-21 | 2012-03-21 | Data cable of broadband and high capacity for local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108002 CN202584911U (en) | 2012-03-21 | 2012-03-21 | Data cable of broadband and high capacity for local area network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584911U true CN202584911U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220108002 Expired - Fee Related CN202584911U (en) | 2012-03-21 | 2012-03-21 | Data cable of broadband and high capacity for local area network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646707A (en) * | 2013-12-02 | 2014-03-19 | 内蒙古仁达特种电缆有限公司 | A mining moisture-proof tensile communication cable |
| CN106165225A (en) * | 2014-04-16 | 2016-11-23 | 罗森伯格高频技术有限及两合公司 | Cable configurations |
-
2012
- 2012-03-21 CN CN 201220108002 patent/CN202584911U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646707A (en) * | 2013-12-02 | 2014-03-19 | 内蒙古仁达特种电缆有限公司 | A mining moisture-proof tensile communication cable |
| CN106165225A (en) * | 2014-04-16 | 2016-11-23 | 罗森伯格高频技术有限及两合公司 | Cable configurations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |