CN201489901U - Shielded and unshielded symmetric data cable used in Ethernet - Google Patents
Shielded and unshielded symmetric data cable used in Ethernet Download PDFInfo
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- CN201489901U CN201489901U CN2009202093151U CN200920209315U CN201489901U CN 201489901 U CN201489901 U CN 201489901U CN 2009202093151 U CN2009202093151 U CN 2009202093151U CN 200920209315 U CN200920209315 U CN 200920209315U CN 201489901 U CN201489901 U CN 201489901U
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Abstract
The utility model discloses a shielded and unshielded symmetric data cable used in Ethernet, which comprises a cable inner core and an inner coating and an outer coating sequentially coated outside the cable inner core. The cable inner core further comprises four groups of twisted wires and a filling strip, wherein each group of twisted wires comprises two twisted core wires; each core wire comprises a conductor and an insulation layer coated outside the conductor; the filling strip comprises four separated areas; and the four groups of twisted wires are respectively arranged in the separated areas of the filling strip. Another shielded and unshielded symmetric data cable used in Ethernet provided by the utility model comprises a cable inner core and an outer coating sequentially coated outside the cable inner core. The cable inner core further comprises four groups of twisted wires and a filling strip, wherein each group of twisted wires comprises two twisted core wires; each core wire is formed by a conductor and an insulation layer coated outside the conductor; the filling strip comprises three separated areas; the first and second groups of twisted wires are separately arranged in the first and second separated areas; and the third and forth groups of twisted wires are arranged in the third separated area. The utility model effectively restraints the crosstalk of adjacent groups of wires during wiring.
Description
Technical field
The utility model relates to six type shieldings and unshielded cable, relates in particular to shielding that the 10G Ethernet the uses symmetrical cable of communicating by letter with non-shadow data.
Background technology
The high speed development of information technology needs speed faster. and the network that capacity is bigger carries, and the transmission rate that the existing Class 6 cable that is widely used in wiring market can't satisfy every pair of line on four pairs of cables all reaches the 100m Distance Transmission of 2.5Gb/s, and bandwidth also has only 250MHz; Use the bandwidth minimum requirements of 10G technology to be 500MHz, and under such high frequency, noise jamming problem during wiring between the line group is difficult to solve by the simple numerical signal processing technology, so the Class 6 cable of a kind of enhancement mode of needs design solves the performance under AXT and the assurance high frequency.
Summary of the invention
At the problems referred to above, the utility model is broken through on structure, on traditional high-speed data communications cables basis, improved the structure that traditional cross is filled, the adjacent lines group crosstalks when having suppressed wiring effectively, can non-shielding multiple twin on configuration 10G Ethernet, and can make transmission range reach the 100m that requires in the structured wiring.
In order to realize the foregoing invention purpose, the utility model discloses a kind of Ethernet with shielding and non-shielding symmetric data cable, comprise cable inner core and the outside inside and outside quilt that coats successively thereof, it is characterized in that, described cable inner core further comprises: 4 groups of twisted pair wires, every group of twisted pair wire comprises 2 stranded cores, and every heart yearn is made up of conductor and the outside insulating barrier that coats; Packing comprises 4 marker spaces; Wherein, described every group of twisted pair wire is separately positioned in the marker space of described packing.
Reasonable is that described packing is two E shape words shape back-to-back.
Reasonable is that described packing is two F shape words shape back-to-back.
The invention also discloses a kind of Ethernet with shielding and non-shielding symmetric data cable, comprise cable inner core and the inside and outside quilt that coats thereof, it is characterized in that, described cable inner core further comprises: 4 groups of twisted pair wires, every group of twisted pair wire comprises the heart yearn of 2 stranded settings, and every heart yearn is made up of conductor and the outside insulating barrier that coats; Packing comprises 3 marker spaces; Wherein, described first and second group twisted pair wire separation is arranged on first, second marker space, and described the 3rd, the 4th group of twisted pair wire is arranged on the 3rd marker space.
Reasonablely be, described packing is the mountain font, and first and second group twisted pair wire is arranged in first and second marker space that the mountain font encloses, and the 3rd, the 4th group of twisted pair wire is arranged on mountain font dual-side and extends in the 3rd marker space that encloses downwards.
Reasonablely be, described packing is the mountain font, and first and second group twisted pair wire is arranged in first and second marker space that the mountain font encloses, and the 3rd, the 4th group of twisted pair wire is arranged on mountain font one side and extends in the 3rd marker space that encloses downwards.
Reasonablely be, described conductor adopts the hypoxemia soft copper, and described insulating barrier adopts the material of low-k, low dielectric loss, and described packing is low dielectric material.
Reasonablely be, through wire drawing and stranded the making of annealing, the conductor specification is the solid or stranded conductor of 20～28AWG to the conductor of described heart yearn by hypoxemia copper or oxygenless copper material, and the insulating barrier of described heart yearn is made by high-density polyethylene (HDPE) material.
Reasonable is that two heart yearns of described twisted pair wire are the twisting shape, and 4 pairs of lines all adopt 20～60% back twist technology.
The utility model of said structure is lower than shielding twisted pair wire and the easier installation of optical cable wiring system and cost, is a Eco-power cable.Both satisfied EIA/telecommunications industry association EIA/TIA-568B.2-10 draft mechanical performance and the requirement of electric property, also satisfy the desired fire protecting performance in American insurance merchant laboratory (UL), have advantage easy to use, that be convenient to lay.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 is the schematic cross-section of analysing and observe of the utility model cable;
Fig. 2～5th contains several combining structures of packing and cable among Fig. 1.
Embodiment
See also shown in Figure 1, the structure of cable of the present utility model is as follows: the cable inner core comprises the packing 11 of some groups of twisted pair wires (being illustrated as 4 groups of twisted pair wires) and definite shape, every heart yearn is made up of conductor 13 and the outside insulating barrier 12 that coats, and heart yearn is formed one group of twisted pair wire in twos.In this inner core outside coats successively by 30 and outside by 20.
Fig. 2～5 have provided the structure type of packing 11 and conductor 13 in several inner cores, Fig. 2 wherein, and the packing 11 in 3 presents the combined shape of positive and negative E, F, with every group 21～24 twisted wires is filled bar 11 thus and separates in twos, crosstalks in the reduction group thus.
Fig. 4, the agent structure of the packing 11 in 5 presents the shape of falling E, guarantee that like this two groups of twisted pair wires 21 and 22 are arranged in the space that the shape of falling E encloses, make it pass through abnormity and fill isolation mutually, other two groups of twisted pair wires 23 and 24 then are arranged on the outside of the shape of falling E packing 11, for example Fig. 4 is that the dual-side of the shape of falling E extends the relative side enclose, and Fig. 5 is the side that a side color of the shape of falling E encloses.
The special-shaped packing 11 of said structure, crosstalking between the adjacent lines group when cable pencil is tied up in the time of can effectively suppressing to connect up.
Aspect the material selection, conductor 13 of the present utility model all adopts the hypoxemia soft copper, has improved the soft degree of wire rod.
The packing 11 of aforementioned 4 kinds of excitability performance technologies types is made by the low tangent consumable material of polyethylene (PE) or other low-k, and minimal thickness: the 0.25mm of width: 7.0mm ± 2mm height 4.0mm ± 2mm is the thickest: 1.5mm.
Above-mentioned 4 types filling can be used for shielding and non-shielding CAT6, CAT6A data communication symmetrical cable.
High-speed data communication paired cable of the present utility model has 5 important unit for electrical property parameters: impedance, decay, return loss. cross-talk (group in). and cross-talk etc. between group has taken into full account five equilibrium when design.
Impedance is a parameter the most basic in the electric property, and it is by conductor lines footpath, two conductor centre-to-centre spacing, these three the parameter decisions of insulative dielectric constant, and not matching of any impedance all can cause the error of final acknowledge(ment) signal.We the time have taken into full account the influence of these three factors in design, and the conductor lines footpath is big, and low cut can be got well, but cost raises, and finish line footpath is bigger than normal; The conductor lines little decay meeting in footpath is influenced.Considering when producing the different and tension force of pitch, inconsistent can to produce each line different and influence impedance to two conductor centre-to-centre spacing, go out different insulated wire footpaths according to different multiple twin pitch design, the right resistance value of every line is controlled at about 100 ± 15Ohm behind the assurance finished product.
Decay is divided into conductor decay and diectric attenuation two parts, and the conductor decay is relevant with resistance, so we adopt oxygen-free copper or hypoxemia copper product, makes resistance reach minimum; Insulating material is selected high density polyethylene (HDPE) (HDPE) material for use, all is the smaller material of dielectric constant and dielectric loss angle.
Return loss is subjected to the influence of input impedance, because and load impedance do not match or make in the inhomogeneous point in cycle, and the reflection that produces signal, input impedance is fluctuateed up and down at characteristic impedance value, the energy of reflection aggravates along with the increase of frequency, even can produce the sudden change significantly of return loss.Adopted the pre-back twist technology of pair twist in the design, eliminated the influence of periodic inconsistent generation, improved the stability of input impedance, thereby optimized return loss input impedance.
The design of cross-talk is to be based upon on the pitch of original six class lines in the group, the pitch design of original six class lines is supported the frequency of 250MHz only, and existing 10G wire rod requires to possess crosstalking above 500MHz, so suitably reduced the pair twist pitch during design, 4 types of packings with uniqueness are separated, and used the statistical method of Six Sigma experimental design to select best pitch, thereby satisfied the requirement of crosstalking in the group, real system can satisfy the qualified index of crosstalking of 1000MHz.
One of performance that high-speed data communication paired cable of the present utility model is superior is embodied on the anti-external world crosstalks.When traditional non-shielding six class data communication paired cable designs can't solve frequency and extend to high frequency, the interference of adjacent lines group same pitch line centering transmission signals, so the many employings of more in the world renowned company change the structure of skeletons such as cable cross filling into or the method for the interior more filling of line group solves this puzzlement, the former has stronger convincingness in theory, difficulty is bigger during actual production. and the latter has increased the control point because of having dosed too many filling when actual production, performance also is difficult to guarantee stable.The structure of the filling of 4 kinds of excitability performance technologies types of our company's employing and the oversheath of on-circular cross-section, but crosstalk between solution group effectively, the more and more littler characteristics of particularly crosstalking between increase group with frequency. and handling ease, save material, be a getting twice the result with half the effort. Eco-power new product.
More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (9)
1. an Ethernet comprises cable inner core and the outside inside and outside quilt that coats successively thereof with shielding and non-shielding symmetric data cable, it is characterized in that described cable inner core further comprises:
4 groups of twisted pair wires, every group of twisted pair wire comprises 2 stranded cores, every heart yearn is made up of conductor and the outside insulating barrier that coats;
Packing comprises 4 marker spaces;
Wherein, described every group of twisted pair wire is separately positioned in the marker space of described packing.
2. Ethernet according to claim 1 is characterized in that with shielding and non-shielding symmetric data cable described packing is two E shape words shape back-to-back.
3. Ethernet according to claim 1 is characterized in that with shielding and non-shielding symmetric data cable described packing is two F shape words shape back-to-back.
4. an Ethernet comprises cable inner core and the inside and outside quilt that coats thereof with shielding and non-shielding symmetric data cable, it is characterized in that described cable inner core further comprises:
4 groups of twisted pair wires, every group of twisted pair wire comprises the heart yearn of 2 stranded settings, every heart yearn is made up of conductor and the outside insulating barrier that coats;
Packing comprises 3 marker spaces;
Wherein, described first and second group twisted pair wire separation is arranged on first, second marker space, and described the 3rd, the 4th group of twisted pair wire is arranged on the 3rd marker space.
5. Ethernet according to claim 4 shielding and non-shielding symmetric data cable is characterized in that,
Described packing is the mountain font, and first and second group twisted pair wire is arranged in first and second marker space that the mountain font encloses, and the 3rd, the 4th group of twisted pair wire is arranged on mountain font dual-side and extends in the 3rd marker space that encloses downwards.
6. Ethernet according to claim 4 shielding and non-shielding symmetric data cable is characterized in that,
Described packing is the mountain font, and first and second group twisted pair wire is arranged in first and second marker space that the mountain font encloses, and the 3rd, the 4th group of twisted pair wire is arranged on mountain font one side and extends in the 3rd marker space that encloses downwards.
7. according to claim 2 or 3 or 5 or 6 described Ethernets shielding and non-shielding symmetric data cables, it is characterized in that,
Described conductor adopts the hypoxemia soft copper, and described insulating barrier adopts the material of low-k, low dielectric loss, and described packing is low dielectric material.
8. Ethernet according to claim 7 shielding and non-shielding symmetric data cable is characterized in that,
Through wire drawing and stranded the making of annealing, the conductor specification is the solid or stranded conductor of 20～28AWG to the conductor of described heart yearn by hypoxemia copper or oxygenless copper material, and the insulating barrier of described heart yearn is made by high-density polyethylene (HDPE) material.
According to Claim 8 described in communication cable, it is characterized in that two heart yearns of described twisted pair wire are the twisting shape, and 4 pairs of lines all adopt 20～60% back twist technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202093151U CN201489901U (en) | 2009-09-07 | 2009-09-07 | Shielded and unshielded symmetric data cable used in Ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202093151U CN201489901U (en) | 2009-09-07 | 2009-09-07 | Shielded and unshielded symmetric data cable used in Ethernet |
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| Publication Number | Publication Date |
|---|---|
| CN201489901U true CN201489901U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202093151U Expired - Lifetime CN201489901U (en) | 2009-09-07 | 2009-09-07 | Shielded and unshielded symmetric data cable used in Ethernet |
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| Country | Link |
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| CN (1) | CN201489901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958728A (en) * | 2017-10-17 | 2018-04-24 | 安徽庆华电缆有限公司 | Intrinsic safety type polyethylene insulation pair twist pvc sheath shields flame retardant computer cable |
| CN114879327A (en) * | 2022-05-26 | 2022-08-09 | 南京华信藤仓光通信有限公司 | Novel skeleton type optical cable |
-
2009
- 2009-09-07 CN CN2009202093151U patent/CN201489901U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958728A (en) * | 2017-10-17 | 2018-04-24 | 安徽庆华电缆有限公司 | Intrinsic safety type polyethylene insulation pair twist pvc sheath shields flame retardant computer cable |
| CN114879327A (en) * | 2022-05-26 | 2022-08-09 | 南京华信藤仓光通信有限公司 | Novel skeleton type optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fast industry (Suzhou) Co., Ltd of China Assignor: Lingxun Electric Wire Industry (Shanghai) Co., Ltd. Contract record no.: 2012320010021 Denomination of utility model: Shielded and unshielded symmetric data cable used in Ethernet Granted publication date: 20100526 License type: Exclusive License Record date: 20120227 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |