CN202025541U - 25-pair super 5-class non-shielded data cable - Google Patents
25-pair super 5-class non-shielded data cable Download PDFInfo
- Publication number
- CN202025541U CN202025541U CN2011200953112U CN201120095311U CN202025541U CN 202025541 U CN202025541 U CN 202025541U CN 2011200953112 U CN2011200953112 U CN 2011200953112U CN 201120095311 U CN201120095311 U CN 201120095311U CN 202025541 U CN202025541 U CN 202025541U
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- twisted pair
- pairs
- pair wire
- pair wires
- data cable
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- Expired - Lifetime
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Abstract
The utility model discloses a 25-pair super 5-class non-shielded data cable comprising twisted pair wires (103) and sheaths (105) outside the twisted pair wires (103). The center of the cable is provided with a filling rope (106), the twisted pair wires (103) are arranged outside the filling rope (106), and polyester belts (104) are arranged between the twisted pair wires (103) and the sheaths (105). According to the structure of the 25-pair super 5-class non-shielded data cable, the position trip of wire pairs is prevented, the positions of the wire pairs are effectively controlled, the pitches of the twisted pair wires (103) are designed in a grouping way, and the product quality is enhanced.
Description
Technical field
The utility model relates to a kind of data cable, and particularly a kind of 25 pairs surpass 5 type unshielded data cables.
Background technology
25 couple in the market surpasses 5 class data cables, basically all can not satisfy the electric property requirement of the world or domestic standard regulation fully, especially near-end cross (hereinafter to be referred as: NEXT) and return loss (hereinafter to be referred as: RL), can not reach the requirement of regulation and stipulation.The electric property instability, construction of cable design is unreasonable, causes having in the processing procedure trickle variation all may the electric property of product line to be impacted, and the technology pitch can't design, and performance is extremely unstable.
Cause the failure of NEXT and RL and the instability of electric property, the reasonability of main and technological design, moulds of industrial equipment selected direct relation for use.The qualified technology of one cover can remedy equipment, frock, some the defective above the raw material, and the unsettled technology of an opposite cover will worsen the performance of product.
The primary structure master that 25 couple in the market surpasses 5 type unshielded data cables is that 25 pairs of twisted pair wires are once stranded, does not have and fills, and stranding perhaps divides into groups.
Because a stranding, perhaps irrational grouping stranding makes line can not fix (the bad control of processing procedure) to the position, line is to easy jumping position, the pair twist pitch be difficult to be set, and behind the close line dislocation position of pitch, collides or just before the decline significantly that causes electric property together.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly can prevent principal vertical line to jumping the position in the stranding operation, effectively 25 couple of control pair position surpasses 5 type unshielded data cables.
In order to solve above-mentioned technical problem, the technical solution of the utility model is: a kind of 25 pairs surpass 5 type unshielded data cables, comprise the sheath that twisted pair wire and twisted pair wire are outer, center at cable is provided with gasket for packing, described twisted pair wire is arranged in outside the gasket for packing, is provided with polyester belt between twisted pair wire and sheath.
This newspaper utility model free-throw line to NEXT can be by international, domestic standard, can disposable test by 325 times in twos line to the NEXT index, 25 pairs surpass 5 type unshielded data cables on the market, mostly can only by partial line to crosstalk, can not disposablely pass through 325 free-throw lines to test.
The utility model does not need the secondary stranding, and the RL performance is also very stable.25 pairs of data cables of this structure have improved the qualification rate and the production efficiency of product greatly.
Stranding of the utility model and do not add any filling makes line to fixed-site, and line just large batch of scrapping can not occur to being difficult for dislocation, and production efficiency has improved half.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in drawings, a kind of 25 pairs surpass 5 type unshielded data cables, comprise the sheath 105 outside twisted pair wire 103 and the twisted pair wire 103, are provided with gasket for packing 106 at the center of cable, described twisted pair wire 103 is arranged in outside the gasket for packing 106, is provided with polyester belt 104 between twisted pair wire 103 and sheath 105.
Twisted pair wire is made of copper core 101 and copper core 101 outer insulating barriers 102.Copper core 101 is the copper bar of 2.6mm by diameter, wire drawing, annealing, preheating procedure by cascade machine, make 2.6 copper bar become copper core 101 softening, that meet technological requirement, pass through the extruder head of cascade machine then after 101 preheatings of copper core again on copper core 101, extrude HDPE insulating barrier 102, finish the single line operation, when copper core 101 is extruded HDPE insulating barrier 102, in extruder, add the master batch of different colours, produce the copper single line of different colours, totally 30 kinds of colors are so that the distinguishing and producing of subsequent handling.
Wherein, 25 pairs of twisted pair wires 103, the copper single line by 30 kinds of different colours according to process stipulation, matches in twos, on to winch, produces the different twisted pair wire of pitch 103.Wherein 10 pairs of twisted pair wires 103 of internal layer are divided into two groups, one group of 5 pairs of twisted pair wire 103.These two groups respectively have 5 pairs of twisted pair wires, design 5 pitches according to the ability of equipment self and the requirement of technology.Outer 15 pairs of twisted pair wires 103 are divided into three groups, one group of 5 pairs of twisted pair wire 103.These three groups each 5 pairs of twisted pair wires are designed 5 pitches different with internal layer again according to the ability of equipment self and the requirement of technology.25 couple 103 of this utility model cable has 10 pitches that vary in size like this.
Center gasket for packing 106, by the network structure polypropylene of buying back, by after stranded once more, the conglobate center of row gasket for packing 106, this center gasket for packing 106 is placed on the center of cable.Arranging 10 twisted pair wires 103 around the gasket for packing 106 by cabler, just complete cover gasket for packing 106 around.Outer field 15 pairs of twisted pair wires 103 cover on 10 pairs of twisted pair wires 103 of internal layer again.
Twisted pair wire 103 is after around the center that the is distributed in gasket for packing 106 of process stipulation, again in the outermost of twisted pair wire 103, by wrapped machine initiatively around last polyester band 104, be used for fixing the position of twisted pair wire 103, make twisted pair wire 103 not loosening, keep the rounding of cable.
At last, sheath 105 is coated on the periphery of polyester band 104, is used to prevent the damage of inner twisted pair wire 103.
The foregoing description limits the utility model never in any form, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in the protection range of the present utility model.
Claims (1)
1. one kind 25 pairs surpass 5 type unshielded data cables, comprise the sheath (105) that twisted pair wire (103) and twisted pair wire (103) are outer, it is characterized in that: be provided with gasket for packing (106) at the center of cable, described twisted pair wire (103) is arranged in outside the gasket for packing (106), is provided with polyester belt (104) between twisted pair wire (103) and sheath (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200953112U CN202025541U (en) | 2011-04-02 | 2011-04-02 | 25-pair super 5-class non-shielded data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200953112U CN202025541U (en) | 2011-04-02 | 2011-04-02 | 25-pair super 5-class non-shielded data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025541U true CN202025541U (en) | 2011-11-02 |
Family
ID=44850485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200953112U Expired - Lifetime CN202025541U (en) | 2011-04-02 | 2011-04-02 | 25-pair super 5-class non-shielded data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025541U (en) |
-
2011
- 2011-04-02 CN CN2011200953112U patent/CN202025541U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |