CN207425397U - Yi Zhong Swastika font stranding skeleton structures - Google Patents
Yi Zhong Swastika font stranding skeleton structures Download PDFInfo
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- CN207425397U CN207425397U CN201721037741.2U CN201721037741U CN207425397U CN 207425397 U CN207425397 U CN 207425397U CN 201721037741 U CN201721037741 U CN 201721037741U CN 207425397 U CN207425397 U CN 207425397U
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Abstract
The utility model discloses Yi Zhong Swastika font stranding skeleton structure , Bao Kuo Swastika font strandings skeleton, core and crust；The core includes four pairs of twisted-pair feeders pair；Stated Swastika fonts stranding skeleton is arranged in crust, and Swastika font stranding skeletons will be separated to form four accommodating cavitys inside crust, four pairs of twisted-pair feeders are to being respectively arranged in each accommodating cavity.The Swastika font strandings skeleton structure designs reasonable ten thousand font stranding skeletons of Tong Guo Swastika by fixation of the twisted-pair feeder to progress certain distance, it can be with fixing line to pitch, so that the stationarity of cable is more preferable, the near-end cross generated so as to reduce signal during transmission divides near-end cross and far-end cross talk, cable is made more to stablize when signal transmission, high efficiency makes effectiveness fast, increases intensity and durability.
Description
Technical field
The utility model is related to twisted-pair feeder technical fields, are specifically Yi Zhong Swastika font stranding skeleton structures.
Background technology
The basic principle of twisted-pair feeder：Twisted-pair feeder is exactly the grid line of computerese, is to have insulating protective layer by two
Copper conductor composition.The copper conductor that edge is thoroughly done away with two is twisted together mutually by certain density, and each conducting wire radiates in the transmission
The electric wave that electric wave out can be sent on another single line is offset, and effectively reduces the degree of signal interference.If a pair of or more
Twisted-pair feeder is placed in an insulating sleeve and has become twisted-pair cable, but it is generally that " twisted-pair cable " is direct in daily life
Referred to as " twisted-pair feeder ".Compared with other transmission mediums, twisted-pair feeder is in transmission range, channel width and data transmission bauds etc.
It is subject to certain restrictions, but price is more cheap.
Twisted-pair feeder can be divided into Shielded Twisted Pair and unshielded twisted pair.Shielded Twisted Pair is in twisted-pair feeder and outer layer insulation big envelope
Between there are one metal screen layer.Shielded Twisted Pair is divided into STP and FTP, and STP, which refers to every line, a respective shielded layer, and FTP
Only have a screening arrangement in entire cable, and both ends all proper grounding when just work.It requires whole system is shielding device
Part, including cable, information point, crystal head and distributing frame etc., while building needs good earthed system.Shielded layer can subtract
Few radiation, prevents information to be ravesdropping, can also prevent the entrance of external electromagnetic interference, makes Shielded Twisted Pair more double than similar unmasked
Twisted wire has higher transmission rate.Unshielded twisted pair is a kind of data line, by the transmission line institute of four pairs of different colours
Composition, is widely used in Etherloop and telephone wire.Utp cable was most used for Bell invented early in 1881
In telephone system.The telephone line network in the U.S. in 1900 is also mainly made of UTP, is possessed by telephone operator.
Twisted-pair feeder is twisted by the plain conductor of a pair of of mutually insulated.In this way, one can not only be resisted
Part can also reduce interfering with each other between multipair twisted wire from extraneous Electromagnetic Interference.The conducting wire that edge is thoroughly done away with two is mutual
Mutually twist together, interference signal act on this two conducting wires mutually kinked together be it is consistent (this interference signal
Do common-mode signal), common-mode signal can be eliminated in the difference channel for receiving signal, so as to extract useful signal (differential mode
Signal).The effect of twisted-pair feeder is the noise that external disturbance is made to be generated on two conducting wires (in professional domain, useless letter
Howl and do noise) it is identical, so that subsequent difference channel extracts useful signal, difference channel is a subtraction circuit, two
Input terminal is cancelled out each other (m-n) with the signal (common-mode signal) of phase, and the signal of reverse phase is equivalent to x- (- y), is enhanced.It is theoretical
On, m=n, x=y in twisted-pair feeder and difference channel are equivalent to interference signal and are completely eliminated, and useful signal doubles, but in reality
There is different in the operation of border.It is not collinear to different lay lengths in a cable sleeve, usually
It says, lay length is in 38.1mm~140mm, and twisting counterclockwise, the lay length of adjacent line pair is within 12.7mm.
The length of one twist cycle of twisted-pair feeder is called pitch, and pitch is smaller (it is closeer to turn round line), and antijamming capability is stronger.
The classification of twisted-pair feeder：Twisted-pair feeder common are three classes line, category-5 cable and CAT5E UTP cable and six class lines, the former line
Footpath is thin and the latter's line footpath is thick, and concrete model is as follows：1) a kind of line (CAT1)：Cable highest frequency bandwidth is 750kHZ, for reporting
Alert system is only applicable to voice transfer (class standard is mainly used for the Telephone Cable before early eighties), is not used in number
According to transmission.2) two class line (CAT2)：Cable highest frequency bandwidth is 1MHZ, for voice transfer and maximum transmission rate 4Mbps
Data transmission, be common in the old Token Ring using 4MBPS specification alternative space agreements.3) three classes line (CAT3)：Refer to
The cable specified in ANSI and EIA/TIA568 standards, the transmission frequency 16MHz of the cable, maximum transmission rate 10Mbps
(10Mbit/s) is mainly used in voice, 10Mbit/s Ethernets (10base-T) and 4Mbit/s token rings, maximum web segment length
It spends for 100m, using the connector of RJ forms, market of having faded out.4) four class line (CAT4)：The transmission frequency of such cable is
20MHz, it is main to use for voice transfer and the data transmission of maximum transmission rate 16Mbps (referring to 16Mbit/s token rings)
In the LAN based on token and 10base-T/100BASE-T.Maximum web segment length is 100m, using the connector of RJ forms, not
It is widely adopted.5) category-5 cable (CAT5)：Such cable is added around line density, a kind of insulating materials of high quality of housing, line
Cable highest frequency bandwidth is 100MHz, and highest transmission rate is 100Mbps, is for voice transfer and maximum transmission rate
The data transmission of 100Mbps is mainly used for 100BASE-T and 1000BASE-T networks, and maximum web segment length is 100m, using RJ shapes
The connector of formula.This is most common Ethernet cable.It is not collinear to different lay lengths in twisted-pair cable.
In general, 4 pairs of twisted-pair feeder stranding distance cycles, in 38.1mm length, twisting counterclockwise, the lay length of a pair of of line pair exists
Within 12.7mm.6) CAT5E UTP cable (CAT5e)：It is small with decaying to surpass 5 classes, crosstalk is few, and with higher attenuation and crosstalk
Ratio (ACR) and signal-to-noise ratio (SNR), smaller time delay error, performance be greatly improved.Surpass 5 class lines and be mainly used for gigabit
Position Ethernet (1000Mbps).7) six class line (CAT6)：The transmission frequency of such cable be 1MHz~250MHz, six type routing system
System overall attenuation crosstalk ratio (PS-ACR) in 200MHz should have larger surplus, it provides 2 times of bandwidth for surpassing five classes.Six
The transmission performance of class wiring significantly larger than surpasses five class standards, is best suited for the application that transmission rate is higher than 1Gbps.Six classes are with surpassing five
One important difference of class is：The performance in terms of crosstalk and return loss is improved, for full duplex of new generation
Highspeed network applications for, excellent return loss performance is epochmaking.Basic link model is eliminated in six class standard,
Line standard use star-shaped topological structure, it is desirable that wiring distance be：For the length of permanent link no more than 90m, channel is long
Degree is no more than 100m.8) six classes or 6A (CAT6A) are surpassed：Such product transmission belt is wide between six classes and seven classes, transmitting pin
Rate is 500MHz, transmission speed 10Gbps, nominal outer diameter 6mm.9) seven class line (CAT7)：Transmission frequency is 600MHz, transmission
Speed is 10Gbps, one wire standard outer diameter 8mm, split conductor nominal outer diameter 6mm.Either any line is decayed all with frequency
It raises and increases.In designing wiring, to consider that attenuated signal should also have sufficiently large amplitude, to make an uproar
It can be correctly detected in receiving terminal under conditions of acoustic jamming.Twisted-pair feeder can be transmitted the data of more high-speeds (Mb/s)
Also there is very big relation with the coding method of digital signal.
Twisted-pair feeder can be used to transmit digital (Digital) and simulation (Analog) signal, and due to cheap, installation is held
Easily, so being widely used.The use of twisted-pair feeder is long-standing, and what phone transmission used is exactly twisted-pair feeder, very much
It in industrial control system and disturbs larger place and all employs twisted-pair feeder in transmitting at a distance, we widely use today
LAN be also using twisted-pair feeder pair.Why twisted-pair feeder uses so extensively, is because it has strong antijamming capability, biography
Many advantages, such as defeated distance is remote, wiring is easy, cheap.Due to twisted-pair feeder to signal there is also larger attenuation, so
During long transmission distance, the frequency of signal cannot be too high, and high speed signal such as Ethernet can only be then limited within 100m.For
For vision signal, bandwidth reaches 6MHz, if directly transmitted in twisted-pair feeder, can also decay quickly.Therefore, vision signal exists
Remote transmission is realized on twisted-pair feeder, it is necessary to be amplified and compensate, twisted-pair cable video transmission equipment is exactly to complete this work(
Energy.In addition after a pair of of twisted-pair visual frequency transceiver, if using trunking scheme, can may be used also by picture transmission to 1 to 2km
With the transmission range that is multiplied, moreover, the quality of transmission image can match in excellence or beauty with optical transmitter and receiver.Twisted-pair feeder and twisted-pair cable video transmission
Equipment price is all very cheap, not only without increasing system cost, under when distance increases, its cost is compared with coaxial cable instead
Many has dropped.So it is transmitted in monitoring system with twisted-pair feeder with apparent advantage：
First, defeated distance is remote, transmission quality is high.It is fabulous due to employing advanced treatment technology in multiple twin line transceiver
It is poor the attenuation the attenuation of video amplitude and different frequency that ground compensates for twisted-pair feeder, maintains the brightness of original picture
With color and real-time, when transmission range reaches 1km or farther, picture intelligence is substantially undistorted.If use relaying side
Formula, transmission range can be farther.
2nd, wiring is convenient, cable utilization rate is high.A pair of of ordinary telephone line can be used for transmitting vision signal.In addition, building
Appointing in 5 class unshielded twisted pairs being laid with extensively in space mansion takes a pair that can transmit vision signal all the way, without other cloth
Line, even rewiring, 5 class cables are also easier than coaxial cable.In addition, there are 4 pairs of twisted-pair feeders in a 5 class cables, if using one
Vision signal is transmitted to line, in addition several can also be used to line to transmit audio signal, control signal, power supply or other letters
Number, cable utilization rate is improved, while the trouble that various signal independent wirings are brought is avoided, reduce project cost.
3rd, strong antijamming capability.Twisted-pair feeder can effectively suppression common mode disturb, even if under strong interference environment, twisted-pair feeder
Fabulous picture intelligence can be transmitted.Moreover, different signals is respectively transmitted to twisted-pair feeder using several in a cable, between each other
It will not disturb.
4th, reliability is high, easy to use.Using twisted-pair line transmission video signal, dedicated transmitter is accessed in front end,
Control centre will access special receiver.This Double-strand transmission equipment price is cheap, uses also very simply, without specialty
Knowledge, also without too many operation, once mounting, long-term stable operation.
5th, it is cheap, convenient material drawing.Due to the use of be now widely used common 5 class unshielded cable or general
It takes on the telephone line, purchase is easy, and price is also very cheap, and great convenience is brought to engineer application.
But existing twisted-pair feeder disadvantage is that insulation performance is bad, distributed capacitance parameter is larger, and signal attenuation is compared
Severity, so, in general, transmission rate is not high, and transmission range is also very limited.Since line is to the inhomogeneities of construction, signal
The transmitting of ripple can be generated in transmission process, back wave is in the mutual superposition of some Frequency points, when reflex amplitude is very big, cable
Transmission performance can drastically deteriorate in the range of even entire bandwidth on these Frequency points.Since the transmission frequency of twisted-pair feeder is more next
Higher, line resists interference requirement with regard to higher and higher, and the twisted of general common line pair cannot meet requiring for frequency, and
And the reason for bigger, is to cause variation of the line to pitch and stranding stranding distance when installing twisted-pair cable, so as to more influence
The performance of cable.
Utility model content
The purpose of this utility model is to provide Yi Zhong Swastika font stranding skeleton structures, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical solution：
Yi Zhong Swastika font stranding skeleton structure , Bao Kuo Swastika font strandings skeleton, core and crust；The core includes four pairs
Twisted-pair feeder pair；Stated Swastika fonts stranding skeleton is arranged in crust, and Swastika font stranding skeletons will be separated to form four appearances inside crust
Chamber is emptied, four pairs of twisted-pair feeders are to being respectively arranged in each accommodating cavity.
As further program of the utility model：Each pair twisted-pair feeder to include two conducting wires, be wrapped in it is exhausted on conducting wire
Edge layer and the external protection being wrapped on conducting wire and insulating layer.
As further program of the utility model：The crust, which is adopted, to be made from an insulative material.
Compared with prior art, the beneficial effects of the utility model are：
Swastika font strandings skeleton structure design is reasonable, simple in structure, and ten thousand font stranding skeletons of Tong Guo Swastika are by twisted-pair feeder pair
The fixation of certain distance is carried out, it can be with fixing line to pitch so that the stationarity of cable is more preferable, so as to reduce signal in transmission
The near-end cross generated in the process divides near-end cross and far-end cross talk (FEXT), makes cable more steady when signal transmission
Fixed, high efficiency makes effectiveness fast, increases intensity and durability；Crushing resistance is strong, and good insulating, and anti-tampering property is good, passes
It leads functional, it is possible to reduce the electrical Interference of nearby lines, performance is good, cheap.
Description of the drawings
The structure diagram of 1 Wei Swastika font stranding skeleton structures of figure.
Wherein：1- Swastika font stranding skeletons；2- conducting wires；3- cores；4- twisted-pair feeders pair；5- crusts.
Specific embodiment
The technical solution of this patent is described in more detail With reference to embodiment.
Referring to Fig. 1, Yi Zhong Swastika font stranding skeleton structure , Bao Kuo Swastika font strandings skeleton 1, core 3 and crust 5；Institute
Stating core 3 includes four pairs of twisted-pair feeders to 4, each pair twisted-pair feeder include to 4 two conducting wires 2, the insulating layer being wrapped on conducting wire 2 and
The external protection being wrapped on conducting wire 2 and insulating layer；Suo Shu Swastika font strandings skeleton 1 is arranged on 5 Zhong , Swastika font stranding skeletons of crust
1 will be separated to form four accommodating cavitys inside crust 5, four pairs of twisted-pair feeders are respectively arranged on to 4 in each accommodating cavity, lead to ten thousand words of Swastika
The fixation that twisted-pair feeder is carried out certain distance by type stranding skeleton 1 to 4, so as to reduce the near-end that signal generates during transmission
Crosstalk divides near-end cross and far-end cross talk (FEXT), cable is made more to stablize when signal transmission, high efficiency passes signal
Defeated efficiency is fast.
Swastika font strandings skeleton structure design is reasonable, simple in structure, and ten thousand font stranding skeletons 1 of Tong Guo Swastika are by twisted-pair feeder pair
4 carry out the fixation of certain distance, can be with fixing line to pitch so that the stationarity of cable is more preferable, is being transmitted so as to reduce signal
During the near-end cross that generates divide near-end cross and far-end cross talk (FEXT), make cable more steady when signal transmission
Fixed, high efficiency makes effectiveness fast, increases intensity and durability；Crushing resistance is strong, and good insulating, and anti-tampering property is good, passes
It leads functional, it is possible to reduce the electrical Interference of nearby lines, performance is good, cheap.
, it is necessary to illustrate in the description of this Swastika font stranding skeleton structures, unless otherwise clearly defined and limited,
Term " setting ", " connected " and " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；It can be directly connected, can also be indirectly connected by intermediary, can be the company inside two elements
It is logical.For the ordinary skill in the art, it can understand that above-mentioned term is specific in the utility model with concrete condition
Meaning.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (1)
1. Yi Zhong Swastika font stranding skeleton structures , is characterized in that , Bao Kuo Swastika font stranding skeletons (1), core (3) and crust
(5)；The core (3) includes four pairs of twisted-pair feeders to (4)；Suo Shu Swastika font stranding skeletons (1) are arranged on crust (5) Zhong , Swastika fonts
Stranding skeleton (1) will be separated to form four accommodating cavitys inside crust (5), and four pairs of twisted-pair feeders are respectively arranged on (4) in each accommodating sky
In chamber；The crust (5), which is adopted, to be made from an insulative material；Each pair twisted-pair feeder includes (4) two conducting wires (2), is wrapped in conducting wire (2)
On insulating layer and the external protection that is wrapped on conducting wire (2) and insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037741.2U CN207425397U (en) | 2017-08-18 | 2017-08-18 | Yi Zhong Swastika font stranding skeleton structures |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721037741.2U CN207425397U (en) | 2017-08-18 | 2017-08-18 | Yi Zhong Swastika font stranding skeleton structures |
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| CN207425397U true CN207425397U (en) | 2018-05-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637736A (en) * | 2018-12-05 | 2019-04-16 | 东莞市云联电线科技有限公司 | Communication Set twisted wire and its manufacturing method |
| CN109637749A (en) * | 2018-12-05 | 2019-04-16 | 东莞市云联电线科技有限公司 | Collect twisted wire manufacturing equipment and its operation method |
-
2017
- 2017-08-18 CN CN201721037741.2U patent/CN207425397U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637736A (en) * | 2018-12-05 | 2019-04-16 | 东莞市云联电线科技有限公司 | Communication Set twisted wire and its manufacturing method |
| CN109637749A (en) * | 2018-12-05 | 2019-04-16 | 东莞市云联电线科技有限公司 | Collect twisted wire manufacturing equipment and its operation method |
| CN109637749B (en) * | 2018-12-05 | 2024-04-12 | 东莞市云联电线科技有限公司 | Stranded wire manufacturing equipment and operation method thereof |
| CN109637736B (en) * | 2018-12-05 | 2024-04-16 | 东莞市云联电线科技有限公司 | Communication stranded wire and manufacturing method thereof |
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Address after: 510000 Room 303, No. 46, Qixin Road, nanyong village, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangdong Yichu Technology Co.,Ltd. Address before: 510000 Room 303, No. 46, Qixin Road, nanyong village, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province Patentee before: YICHU WIRE & CABLE (GUANGDONG) TECHNOLOGY Co.,Ltd. |