CN202839041U - 7-category data cable with high shielding performance - Google Patents
7-category data cable with high shielding performance Download PDFInfo
- Publication number
- CN202839041U CN202839041U CN 201220324089 CN201220324089U CN202839041U CN 202839041 U CN202839041 U CN 202839041U CN 201220324089 CN201220324089 CN 201220324089 CN 201220324089 U CN201220324089 U CN 201220324089U CN 202839041 U CN202839041 U CN 202839041U
- Authority
- CN
- China
- Prior art keywords
- cable
- data
- layer
- protective layer
- data cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a multilayer shielding 7-category data cable, which is composed of a PVC protective layer, a main shielding layer and four groups of line pairs, wherein the PVC protective layer is arranged at the outer layer of the data cable, the main shielding layer is arranged inside the PVC protective layer, a tearing rope is arranged between the main shielding layer and the PVC protective layer, the four groups of line pairs are arranged in the main shielding layer, each group of line pairs comprises two conducting wires and a sub shielding layer wrapping the two conducting wires, and each conducting wire comprises a copper conductor, a first solid PE (Poly Ethylene) insulation layer, a high physical foaming layer and a second solid PE insulation layer sequentially from inside to outside. The data cable provided by the utility model can be used to effectively reduce loss of signals transmitted in the conductors, and integral anti-electromagnetic interference and signal crosstalk performance of the data cable are improved.
Description
Technical field
The utility model relates to the data cable of electronic information technical field, relates in particular to the multiple shield high-performance data cable of the high-speed transfer of the data-signals such as audio frequency for vast capacity, video, image.
Background technology
Along with the development of information network, information communication is more and more frequent, and the information exchange capacity is also increasing.Data cable is the important transmission medium of the network information, is faced with new technological change and innovation, will improve transmission rate on the one hand, satisfies transmission and the exchange of large capacity information, will improve transmission stability on the other hand, guarantees the quality of communication.
Ethernet came out over more than 30 year, network transmission speed has improved nearly thousand times, FDX Ethernet (10Mbps), 100 m ethernet (100Mbps), 802.3u Fast Ethernet (1000Mbps) have been experienced, ten thousand mbit ethernets (10Gbps) till now, also will develop to 100,000 mbit ethernets (100Gbps) future.From present information transmission technology development, ten thousand mbit ethernets will be direction and the trend of the networking coming years, and the demand that is fit to the high-speed data transmission cable of ten thousand mbit ethernets in the coming five years increases fast.
The development of the research and development of data cable and manufacturing and Ethernet synchronously, manufacturer releases 3 classes (10Mbps), 5 classes (100Mbps) surpass five classes and 6 classes (1000Mbps), for Construction of Information Network and upgrading play an important role.For adapting to the application of ten thousand mbit ethernets, converge and group system such as high-speed data communication network, data center, vast capacity data storage networking, financial transaction system, the supercomputing Study system of government, medical health field and university, and have higher requirement to the shielding properties of data cable in the field such as the very high military affairs of shielding requirements, Aeronautics and Astronautics.
And existing 6 its transmission frequencies of class data cable of widely applying are relatively low, and therefore in product structure design, heart yearn is generally the solid plastic insulation, outside non-shielding or the single-layer metal paper tinsel shielding construction of adopting.Such structural design when transmission bandwidth surpasses into 250MHz, is difficult to guarantee that product has the performances such as good electric and transmission performance and anti-electromagnetic interference.
The utility model content
For the existing deficiency of prior art, technical problem to be solved in the utility model provides the cable for seven kinds of data of high shielding properties, this data cable has reduced the loss of signal in the conductor transmission effectively, has improved whole anti-electromagnetic interference capability and the antinoise signal crosstalk performance of product.
In order to solve the problems of the technologies described above; multilayer screen cable for seven kinds of data of the present utility model; comprise protective layer; total screen and four groups of lines pair; protective layer is positioned at the skin of data cable; total screen is arranged in the protective layer; between total screen and protective layer, be provided with and tear rope; described four groups of lines are to being arranged in total screen; four groups of lines are to being made of two wires and sub-shield respectively; sub-shield with two wrapped in wire together; described wire is followed successively by copper conductor from inside to outside; the first solid PE insulating barrier; high physical foaming froth bed and the second solid PE insulating barrier, the area coverage of total screen is at least 40%.
It is 40% to 60% wire braid that total screen is selected area coverage.
It is 50% wire braid that total screen is selected area coverage.
Sub-shield is selected the super thin metal paper tinsel.
The high physical foaming froth bed is the froth bed of gas foam degrees 50%～70%.
The high physical foaming froth bed is the froth bed of gas foam degrees 60%.
The utility model has following characteristics owing to having adopted technique scheme:
1, the purpose of design physical high foaming insulation structure, changed the insulation system of conductor, changing three layers of (solid PE layer+froth bed+solid PE layer) insulating barrier into by the solid PE insulation of individual layer forms, reduced the dielectric constant of dielectric, thereby the insulation property of conductor have been improved, effectively reduce the loss during signal transmits in conductor, reduced the delay distortion of transfer of data, thereby satisfied the application requirements of the large capacity of 7 class data cables, two-forty.
2, adopt the total points double layer screen, the sub-shield of internal layer can solve the line of cable inside to a crosstalk problem, add the double layer screen that outer field total screen consists of, solve the electromagnetic interference problem of the inside and outside section of cable, Effective Raise whole anti-electromagnetic interference capability and the antinoise signal crosstalk performance of product, reduce the phenomenons such as error code in the transfer of data.
The utility model product the key technical indexes:
(1) decay (ATT) :≤50dB/100m (600MHz)
(2) near-end crosstalk power and (PSNEXT) :≤58dB/100m (600MHz)
(3) characteristic impedance (NEXT): 100 ± 15 Ω (4～100MHz)
100±22Ω(100～200MHz)
100±25Ω(200～600MHz)
(4) return loss (RL): 〉=17.3dB/100m (600MHz)
The technical program has satisfied the application requirements of the large capacity of data cable, two-forty, and solves the electromagnetic interference problem of the inside and outside of cable, makes the cable have better antinoise signal string around performance, reduces the phenomenons such as error code in the transfer of data.
Description of drawings
Fig. 1 is the structural representation of the cable for seven kinds of data of the high shielding properties of the utility model
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done a detailed description.
The cable for seven kinds of data of high shielding properties as shown in Figure 1; this data cable is comprised of 3 protective layer 1, total screen 2 and four groups of lines; protective layer 1 is positioned at the skin of data cable; total screen 2 is arranged in the protective layer 1; select the wire braid of area coverage 45%, between total screen 2 and protective layer 1, be provided with one and tear rope 10.Described four groups of lines are arranged in total screen 23, four groups of lines are made of two wires 5 and sub-shield 4 respectively 3, sub-shield 4 is selected the super thin metal paper tinsel, sub-shield 4 is bundled together two wires 5, described wire 5 is followed successively by copper conductor 6, the first solid PE insulating barrier 7, high physical foaming froth bed 8 and the second solid PE insulating barrier 9 from inside to outside, and high physical foaming froth bed 8 is the froth bed of gas foam degrees 60%.
Claims (6)
1. the cable for seven kinds of data of high shielding properties; comprise protective layer (1); total screen (2) and four groups of lines are to (3); protective layer (1) is positioned at the skin of data cable; total screen (2) is arranged in the protective layer (1); between total screen (2) and protective layer (1), be provided with and tear rope (10); described four groups of lines are arranged in total screen (2) (3); four groups of lines are made of two wires (5) and sub-shield (4) respectively (3); it is characterized in that: sub-shield (4) is bundled together two wires (5); described wire (5) is followed successively by copper conductor (6) from inside to outside; the first solid PE insulating barrier (7); high physical foaming froth bed (8) and the second solid PE insulating barrier (9), the area coverage of total screen (2) is at least 40%.
2. the cable for seven kinds of data of high shielding properties according to claim 1 is characterized in that: it is 40% to 60% wire braid that total screen (2) is selected area coverage.
3. the cable for seven kinds of data of high shielding properties according to claim 1 is characterized in that: it is 50% wire braid that total screen (2) is selected area coverage.
4. the cable for seven kinds of data of high shielding properties according to claim 1, it is characterized in that: sub-shield (4) is used the super thin metal paper tinsel.
5. the cable for seven kinds of data of high shielding properties according to claim 1, it is characterized in that: high physical foaming froth bed (8) is the froth bed of gas foam degrees 50%～70%.
6. the cable for seven kinds of data of high shielding properties according to claim 1, it is characterized in that: high physical foaming froth bed (8) is the froth bed of gas foam degrees 60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324089 CN202839041U (en) | 2012-07-02 | 2012-07-02 | 7-category data cable with high shielding performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324089 CN202839041U (en) | 2012-07-02 | 2012-07-02 | 7-category data cable with high shielding performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839041U true CN202839041U (en) | 2013-03-27 |
Family
ID=47950686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324089 Expired - Lifetime CN202839041U (en) | 2012-07-02 | 2012-07-02 | 7-category data cable with high shielding performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839041U (en) |
-
2012
- 2012-07-02 CN CN 201220324089 patent/CN202839041U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201359878Y (en) | Symmetric paralleled network cable | |
| WO2008043228A1 (en) | Communication cable, processing method thereof, communication apparatus and system thereof | |
| CN102254608A (en) | Single-paired dual-spindle parallel high-speed transmission cable and manufacturing method thereof | |
| CN103268788A (en) | Cable with multiple pairs of parallel symmetrical axes | |
| CN101719398B (en) | Super-six type unshielded data cable | |
| CN105185465A (en) | Avionic full-duplex Ethernet communication cable and manufacture method thereof | |
| CN201984899U (en) | Multilayer shielding 7-category data cable | |
| CN205177494U (en) | Coaxial data transmission cable of four -core for aviation | |
| CN201638604U (en) | High-physical foam double-shield category-7 data cable | |
| CN202549480U (en) | High-speed parallel and symmetrical data cable with improved structure | |
| CN202584804U (en) | Data network cable | |
| CN203242432U (en) | Multi-pair parallel symmetric-axis cable | |
| CN202839041U (en) | 7-category data cable with high shielding performance | |
| CN102682913A (en) | High-speed parallel symmetrical data cable with improved structure | |
| CN216353560U (en) | Coaxial cable and high-speed direct connection cable | |
| CN202816421U (en) | Minitype soft super-light data transmission cable | |
| CN104867610A (en) | Anti-interference high-definition network communication data transmission cable | |
| CN202159507U (en) | Insulation foaming ten-thousand MHz data cable | |
| CN101714424A (en) | High physical foaming double-layer shielding cable for seven kinds of data | |
| CN102956291A (en) | Insulating foam ten-gigabit data cable | |
| CN2922074Y (en) | Horizontal paired cable with new shielding structure for super seven class data communication | |
| CN103515014A (en) | Seven-category data cable with high shielding property | |
| CN202003732U (en) | Signal-pair double-shaft parallel high-speed transmission cable | |
| CN203325532U (en) | Indoor multimedia communication data cable | |
| CN104795175A (en) | Weather-proof data cable for access network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |