CN101458979A - Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable - Google Patents
Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable Download PDFInfo
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- CN101458979A CN101458979A CNA2007101953688A CN200710195368A CN101458979A CN 101458979 A CN101458979 A CN 101458979A CN A2007101953688 A CNA2007101953688 A CN A2007101953688A CN 200710195368 A CN200710195368 A CN 200710195368A CN 101458979 A CN101458979 A CN 101458979A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
Abstract
The invention discloses a communication cable formed by a plurality of twisted pairs, wherein the absolute difference value of the pitch of two adjacent twisted pairs is not lower than 2.0+-0.1mm; the absolute tolerance value of the pitch of each twisted pair is not higher than 0.30mm; and the pitch of each twisted pair is not higher than 75.0mm. The invention provides a matching method for the twisted pairs of the communication cable, comprising: matching a plurality of twisted pairs while the absolute difference value of the pitch of two adjacent twisted pairs is not lower than 2.0+-0.1mm; setting the absolute tolerance value of the pitch of each twisted pair is not higher than 0.30mm; and setting the pitch of each twisted pair is not higher than 75.0mm. The invention provides a communication system and a communication cabinet. The technical scheme can improve the index parameters of the communication cable, to satisfy wideband VDSL2 access technique of communication field.
Description
Technical field
The present invention relates to communication technical field, be specifically related to the right fitting method of twisted-pair feeder in a kind of telecommunication cable, communication system, communication cabinet and the telecommunication cable.
Background technology
At communication technical field, often to use twisted-pair feeder to transmitting the various signals of telecommunication, as clock signal, repeating signal, control signal etc., and often use a plurality of twisted-pair feeders right simultaneously, to adapt to different demands.In use, usually with many to twisted-pair feeder to forming the telecommunication cable of different pairs.Transmit in the process of the various signals of telecommunication, along with the increase of transmission frequency, twisted-pair feeder between cross-talk be a key factor that influences the transmission signals quality.
XDSL (Digital Subscriber Line, Digital Subscriber Line) is the communications field transmission technology of a class based on cable system, the xDSL technology that is most widely used at present comprises ADSL (Asymmetric digitalsubscriber line, ADSL (Asymmetric Digital Subscriber Line)), ADSL2+ (Enhanced 2nd asymmetric digitalsubscriber line, enhancement mode second generation ADSL (Asymmetric Digital Subscriber Line)), VDSL (Very-high-speeddigital subscriber line, very high speediness rate Digital Subscriber Line), VDSL2 (2nd Very-high-speeddigital subscriber line, second generation very high speediness rate Digital Subscriber Line) etc., transmission frequency progressively expands to the 30MHz of VDSL2 business from the 1.1MHz of ADSL business, and, in the transmission line cross-talk is required also along with raising along with the raising of transmission frequency.
In the prior art by the 64 core telecommunication cables of a kind of 32 pairs of twisted-pair feeders to forming, this telecommunication cable conductor diameter is 0.40 millimeter, characteristic impedance is generally 100 ohm, what adopt is sub-thread solid copper conductor and solid polyethylene insulation, its cable core is made up of 4 subunits, and each subunit is made up of 8 pairs of twisted-pair feeder strands.The right sequence number of twisted-pair feeder be followed successively by P01, P02 ..., P32.The right pitch of each twisted-pair feeder is selected referring to table 1 in this telecommunication cable, and the right arrangement architecture of each twisted-pair feeder is referring to Fig. 1.
The right pitch of 32 pairs of twisted-pair feeders of table 1 prior art is selected
For making things convenient for intuitivism apprehension, see also Fig. 2, be the right pitch schematic diagram of prior art twisted-pair feeder.Pair a represents that twisted-pair feeder is to a among the figure.Pair b represents that twisted-pair feeder is to b.Wire a1, Wire a2 represent to form twisted-pair feeder respectively two of a are thoroughly done away with the edge heart yearn.Wire b1, Wire b2 represent to form twisted-pair feeder respectively two of b are thoroughly done away with the edge heart yearn.La, La ' expression twisted-pair feeder is to the pitch value of a.Because use the right pitch of device fabrication twisted-pair feeder that fluctuation is all arranged, that is to say that pitch all has tolerance, La and La ' they are two pitches in the pitch margin of tolerance, all be to represent the pitch of twisted-pair feeder to a, they may equate that also possibility is unequal, but all in the pitch margin of tolerance.Lb, Lb ' expression twisted-pair feeder is to the pitch value of b.
Select the telecommunication cable made according to the right pitch of prior art twisted-pair feeder, it is carried out professional transmission limit test, its high-transmission frequency is 16MHz; Its near-end crosstalk attenuation (NEXT) index satisfies formula NEXT 〉=59-15 * log (f) (dB) in transmission frequency, f is a frequency, and unit is MHz, and the near-end crosstalk attenuation minimum value when f is 1MHz is 59dB; Its far-end crosstalk attentuation such as level such as grade (ELFEXT) index satisfies formula ELFEXT 〉=53-20 * Log (f) (dB) in transmission frequency, the minimum value such as level far-end crosstalk attentuation such as grade when f is 1MHz is 53dB.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
Select the telecommunication cable of manufacturing according to the right pitch of prior art twisted-pair feeder, its index parameter can not satisfy the application of broadband, communications field VDSL2 access technology, and for example its high-transmission frequency is 16MHz, is lower than the needed transmission frequency of VDSL2 access technology; Its near-end crosstalk attenuation (NEXT) index and index such as level far-end crosstalk attentuation (ELFEXT) such as grade also remain to be improved.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides the right fitting method of twisted-pair feeder in a kind of telecommunication cable, communication system, communication cabinet and the telecommunication cable, can improve the index parameter of telecommunication cable, satisfy the application of broadband, communications field VDSL2 access technology.
For solving the problems of the technologies described above, embodiment provided by the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of telecommunication cable, described telecommunication cable by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
The embodiment of the invention provides the right fitting method of twisted-pair feeder in a kind of telecommunication cable: will choose many to twisted-pair feeder when forming telecommunication cable, described many to twisted-pair feeder to millimeter cooperating more than or equal to (2.0 ± 0.1) by the absolute value of the difference of the right pitch of all adjacent twisted-pair feeders; The absolute value of described many tolerances to the right pitch of each right twisted-pair feeder of twisted-pair feeder of choosing is smaller or equal to 0.30 millimeter; Described choose many to the right pitch of each right twisted-pair feeder of twisted-pair feeder smaller or equal to 75.0 millimeters.
The embodiment of the invention provides a kind of communication system, comprises distributing frame and communication equipment: described distributing frame is connected by telecommunication cable with described communication equipment, wherein, described telecommunication cable by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
The embodiment of the invention provides a kind of communication cabinet, is equiped with at least two veneers in the described communication cabinet: described two veneers connect by telecommunication cable, form business interconnection, wherein, described telecommunication cable by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
The telecommunication cable that the embodiment of the invention provides, select to further consider on the basis that in the right pitch of twisted-pair feeder the right pitch of adjacent twisted-pair feeder cooperates, select different twisted-pair feeders right according to this thinking, carry out professional transmission limit test then, the absolute value of final many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs of finding to form cable is more than or equal to (2.0 ± 0.1) millimeter, the absolute value of the tolerance of the pitch that each twisted-pair feeder is right is smaller or equal to 0.30 millimeter, the right pitch of each twisted-pair feeder is during smaller or equal to 75.0 millimeters, the index parameter of telecommunication cable improves greatly, its high-transmission frequency is 30MHz, satisfies the application of broadband, communications field VDSL2 access technology; Its near-end crosstalk attenuation (NEXT) index minimum value is 62dB, and is better than prior art attenuating; Its far-end crosstalk attentuation such as level such as grade (ELFEXT) index minimum value is 59dB, and is also good than prior art attenuating.
Description of drawings
Fig. 1 is the right arrangement schematic diagram of each twisted-pair feeder of prior art telecommunication cable;
Fig. 2 is the right pitch schematic diagram of prior art twisted-pair feeder;
Fig. 3 is the right arrangement schematic diagram of each twisted-pair feeder of the embodiment of the invention one telecommunication cable;
Fig. 4 is the right arrangement schematic diagram of each twisted-pair feeder of the embodiment of the invention two telecommunication cables;
Fig. 5 is the right arrangement schematic diagram of each twisted-pair feeder of the embodiment of the invention three telecommunication cables;
Fig. 6 is an embodiment of the invention communication system architecture schematic diagram;
Fig. 7 is an embodiment of the invention communication cabinet structural representation.
Embodiment
The embodiment of the invention provides the right fitting method of twisted-pair feeder in a kind of telecommunication cable and the telecommunication cable, is used to improve the index parameter of telecommunication cable, makes it satisfy the application of broadband, communications field VDSL2 access technology.
The broadband connections cable that the embodiment of the invention provides, 0.40 millimeter ± 0.01 millimeter or 0.50 millimeter ± 0.01 millimeter of conductor diameter, by a plurality of twisted-pair feeders to forming, characteristic impedance is generally 100 ohm ± 15 ohm, can adopt solid bare copper conductor of sub-thread or tin-coated copper conductor or silver-plated copper conductor, can adopt solid or the polyethylene foamed insulation.When if prior art wishes to improve the index parameter of telecommunication cable, will consider the right pitch of twisted-pair feeder is selected to adjust, test then, judge according to test result whether the telecommunication cable of described adjustment meets the demands; And the broadband connections cable that the embodiment of the invention provides is to select to further consider on the basis that in the right pitch of twisted-pair feeder the right pitch of adjacent twisted-pair feeder cooperates.Wherein, following requirement (establish pitch and adopt letter representation shown in Figure 2) is satisfied in right pitch selection and the cooperation of twisted-pair feeder of forming this telecommunication cable:
(1) the right pitch of any one twisted-pair feeder in the broadband connections cable that provides of the embodiment of the invention is not more than 75.0 millimeters, that is: La≤75 millimeter, La '≤75 millimeter, Lb≤75 millimeter, Lb '≤75 millimeter.
(2) in the broadband connections cable that provides of the embodiment of the invention the absolute value of tolerance of the right pitch of each twisted-pair feeder be not more than 0.30 millimeter, that is: | La-La ' |≤0.30 millimeter, | Lb-Lb ' |≤0.30 millimeter.
(3) minimum value of the absolute value of the difference of the right pitch of the adjacent twisted-pair feeder in the broadband connections cable that provides of the embodiment of the invention is not less than (2.0 ± 0.1) millimeter, that is: | and La-Lb|
Min〉=(2.0 ± 0.1) millimeter, | La '-Lb ' |
Min〉=(2.0 ± 0.1) millimeter.
The embodiment technical scheme is described in further detail the specific embodiment of the invention below in conjunction with accompanying drawing and form for a better understanding of the present invention.
The embodiment of the invention one:
The telecommunication cable that the embodiment of the invention one provides is 0.40 millimeter ± 0.01 millimeter of a kind of conductor diameter, and by the 16 core telecommunication cables of 8 pairs of twisted-pair feeders to forming, characteristic impedance is generally 100 ohm ± 15 ohm, adopts sub-thread solid copper conductor, solid polyethylene insulation.
The right sequence number of twisted-pair feeder represents with P01, P02, P03, P04, P05, P06, P07, P08 successively, and the right arrangement architecture of each twisted-pair feeder is referring to Fig. 3.As shown in Figure 3, P01 is in the centre, adjacent on every side P02, P03, P04, P05, P06, P07, the P08 of being respectively.
The chromatogram of the insulation heart yearn that each twisted-pair feeder is right can be by following selection but is not limited to this, specifically referring to table 2.
| Line is to sequence number | Twisted-pair feeder is to insulation heart yearn chromatogram |
| P01 | Indigo plant in vain, |
| P02 | Orange in vain, |
| P03 | In vain, green |
| P04 | Palm fibre in vain, |
| P05 | Ash in vain, |
| P06 | Red, blue |
| P07 | Red, orange |
| P08 | Red, green |
The insulation heart yearn chromatogram that table 2 embodiment of the invention one each twisted-pair feeder is right
The right pitch of the embodiment of the invention one each twisted-pair feeder is selected and is cooperated by following requirement setting:
(1) the right pitch allowed band of each twisted-pair feeder is not more than 75 millimeters, promptly smaller or equal to 75 millimeters.
(2) in the pitch allowed band, choose 8 pitches, and arbitrary twisted-pair feeder is controlled in 0.30 millimeter to the pitch tolerance, promptly smaller or equal to 0.30 millimeter.
(3) each twisted-pair feeder cooperates carry out pitch by the requirement of " minimum value of the absolute value of the difference of the pitch that adjacent twisted-pair feeder is right is not less than (2.0 ± 0.1) millimeter " when arrangement lays.
Each twisted-pair feeder lays referring to Fig. 3 arrangement, and P01 is in the centre, adjacent on every side P02, P03, P04, P05, P06, P07, the P08 of being respectively.Pitch cooperates referring to table 3, and two kinds of schemes are provided in the table 3.
The right pitch of table 3 embodiment of the invention one each twisted-pair feeder is selected and is cooperated
It should be noted that the selection of the concrete data of pitch and cooperation are an example in the above-mentioned table, concrete data are not limited to this.
The embodiment of the invention two:
The telecommunication cable that the embodiment of the invention two provides is 0.40 millimeter ± 0.01 millimeter of a kind of conductor diameter, and by the 32 core telecommunication cables of 16 pairs of twisted-pair feeders to forming, characteristic impedance is generally 100 ohm ± 15 ohm, adopts sub-thread solid copper conductor, solid polyethylene insulation.
The right sequence number of twisted-pair feeder is represented with P01, P02, P03, P04, P05, P06, P07, P08, P09, P10, P11, P12, P13, P14, P15, P16 successively.The right arrangement architecture of each twisted-pair feeder is referring to Fig. 4.As shown in Figure 4, P01 forms a circle in the centre to P05, and P06 forms a circle in the periphery to P16.
The chromatogram of the insulation heart yearn that each twisted-pair feeder is right can be by following selection but is not limited to this, specifically referring to table 4.
| Line is to sequence number | Twisted-pair feeder is to insulation heart yearn chromatogram |
| P01 | Indigo plant in vain, |
| P02 | Orange in vain, |
| P03 | In vain, green |
| P04 | Palm fibre in vain, |
| P05 | Ash in vain, |
| P06 | Red, blue |
| P07 | Red, orange |
| P08 | Red, green |
| P09 | Red, brown |
| P10 | Red, grey |
| P11 | Black, blue |
| P12 | Black, orange |
| P13 | Black, green |
| P14 | Black, brown |
| P15 | Black, grey |
| P16 | Yellow, blue |
The insulation heart yearn chromatogram that table 4 embodiment of the invention two each twisted-pair feeders are right
The right pitch of the embodiment of the invention two each twisted-pair feeders is selected and is cooperated by following requirement setting:
(1) the right pitch allowed band of each twisted-pair feeder is not more than 75 millimeters, promptly smaller or equal to 75 millimeters.
(2) in the pitch allowed band, choose 16 pitches, and arbitrary twisted-pair feeder is controlled in 0.30 millimeter to the pitch tolerance, promptly smaller or equal to 0.30 millimeter.
(3) each twisted-pair feeder cooperates carry out pitch by the requirement of " minimum value of the absolute value of the difference of the pitch that adjacent twisted-pair feeder is right is not less than (2.0 ± 0.1) millimeter " when arrangement lays.
Each twisted-pair feeder lays referring to Fig. 4 arrangement, and P01 forms a circle in the centre to P05, and P06 forms a circle in the periphery to P16.Pitch cooperates referring to table 5.
| Line is to sequence number | Pitch (millimeter) |
| P01 | 9.15 |
| P02 | 21.50 |
| P03 | 11.40 |
| P04 | 15.32 |
| P05 | 19.83 |
| P06 | 23.32 |
| P07 | 13.82 |
| P08 | 16.87 |
| P09 | 18.36 |
| P10 | 25.91 |
| P11 | 14.53 |
| P12 | 16.19 |
| P13 | 20.36 |
| P14 | 22.30 |
| P15 | 12.62 |
| P16 | 9.96 |
The right pitch of table 5 embodiment of the invention two each twisted-pair feeders is selected and is cooperated
It should be noted that the selection of the concrete data of pitch and cooperation are an example in the above-mentioned table, concrete data are not limited to this.
The embodiment of the invention three:
The telecommunication cable that the embodiment of the invention three provides is 0.40 millimeter ± 0.01 millimeter of a kind of conductor diameter, by the 64 core telecommunication cables of 32 pairs of twisted-pair feeders to forming, characteristic impedance is generally 100 ohm ± 15 ohm, adopt sub-thread solid copper conductor, solid polyethylene insulation, cable core is made up of four subunits, and each subunit is made up of 8 pairs of twisted-pair feeder strands.
The right sequence number of each twisted-pair feeder of subunit one is expressed as P01, P02, P03, P04, P05, P06, P07, P08 successively, the right sequence number of each twisted-pair feeder of subunit two is expressed as P09, P10, P11, P12, P13, P14, P15, P16 successively, the right sequence number of each twisted-pair feeder of subunit three is expressed as P17, P18, P19, P20, P21, P22, P23, P24 successively, and the right sequence number of each twisted-pair feeder of subunit four is expressed as P25, P26, P27, P28, P29, P30, P31, P32 successively.The right arrangement architecture of each twisted-pair feeder is referring to Fig. 5.For subunit one, P01 is in the centre, adjacent on every side P02, P03, P04, P05, P06, P07, the P08 of being respectively, and laying that other subunit twisted-pair feeders are right is similar.
The chromatogram of the insulation heart yearn that each twisted-pair feeder is right can be by following selection but is not limited to this, specifically referring to table 6.
The insulation heart yearn chromatogram that table 6 embodiment of the invention three each twisted-pair feeders are right
The right pitch of the embodiment of the invention three each twisted-pair feeders is selected and is cooperated by following requirement setting:
(1) the right pitch allowed band of each twisted-pair feeder is not more than 75 millimeters, promptly smaller or equal to 75 millimeters.
(2) in the pitch allowed band, choose 16 pitches, and arbitrary twisted-pair feeder is controlled in 0.30 millimeter to the pitch tolerance, promptly smaller or equal to 0.30 millimeter.
(3) each twisted-pair feeder cooperates carry out pitch by the requirement of " minimum value of the absolute value of the difference of the pitch that adjacent twisted-pair feeder is right is not less than (2.0 ± 0.1) millimeter " when arrangement lays.
Each twisted-pair feeder lays referring to Fig. 5 arrangement, and for subunit one, P01 is in the centre, adjacent on every side P02, P03, P04, P05, P06, P07, the P08 of being respectively, and laying that other subunit twisted-pair feeders are right is similar.Pitch cooperates referring to table 7.
The right pitch of table 7 embodiment of the invention three each twisted-pair feeders is selected and is cooperated
It should be noted that the selection of the concrete data of pitch and cooperation are an example in the above-mentioned table, concrete data are not limited to this.
Accordingly, the embodiment of the invention also provides a kind of communication system.Seeing also Fig. 6, is embodiment of the invention communication system architecture schematic diagram.
As shown in Figure 6, communication system comprises distributing frame 601 and communication equipment 602, and described distributing frame 601 is connected by telecommunication cable 603 with described communication equipment 602.
The conductor that adopts in the described telecommunication cable 603 is the solid bare copper conductor of sub-thread, or the tin-coated copper conductor, or the silver-plated copper conductor; The insulating material that adopts is solid or polyethylene foamed.
Described telecommunication cable 603 by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable 603 is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable 603 is smaller or equal to 75.0 millimeters.
The twisted-pair feeder of described composition telecommunication cable 603 is when being at least more than 8 pairs, and the right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.It should be noted that the selection of the concrete data of these pitches and cooperation be an example just, concrete data are not limited to this.
The embodiment of the invention also provides a kind of communication cabinet.Seeing also Fig. 7, is embodiment of the invention communication cabinet structural representation.
As shown in Figure 7, be equiped with at least two veneers 701 and 702 in the communication cabinet, described two veneers 701 are connected by telecommunication cable 703 with 702, form business interconnection.
The conductor that adopts in the described telecommunication cable 703 is the solid bare copper conductor of sub-thread, or the tin-coated copper conductor, or the silver-plated copper conductor; The insulating material that adopts is solid or polyethylene foamed.
Described telecommunication cable 703 by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable 703 is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable 703 is smaller or equal to 75.0 millimeters.
The twisted-pair feeder of described composition telecommunication cable 703 is when being at least more than 8 pairs, and the right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.It should be noted that the selection of the concrete data of these pitches and cooperation be an example just, concrete data are not limited to this.
In sum, the telecommunication cable that the embodiment of the invention provides, be to select to further consider on the basis that in the right pitch of twisted-pair feeder the right pitch of adjacent twisted-pair feeder cooperates, select different twisted-pair feeders right according to this thinking, carry out professional transmission limit test then, the absolute value of final many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs of finding to form cable is more than or equal to (2.0 ± 0.1) millimeter, the absolute value of the tolerance of the pitch that each twisted-pair feeder is right is smaller or equal to 0.30 millimeter, the right pitch of each twisted-pair feeder is during smaller or equal to 75.0 millimeters, the index parameter of telecommunication cable improves greatly, its high-transmission frequency is 30MHz, satisfies the application of broadband, communications field VDSL2 access technology; Its near-end crosstalk attenuation (NEXT) index minimum value is 62dB, and is better than prior art attenuating; Its far-end crosstalk attentuation such as level such as grade (ELFEXT) index minimum value is 59dB, and is also good than prior art attenuating.
More than the right fitting method of twisted-pair feeder in a kind of telecommunication cable, communication system, communication cabinet and the telecommunication cable that the embodiment of the invention provided is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1, a kind of telecommunication cable is characterized in that:
Described telecommunication cable by many to twisted-pair feeder to forming;
The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
2, telecommunication cable according to claim 1 is characterized in that:
The twisted-pair feeder of described composition telecommunication cable when being at least more than 8 pairs,
The right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps
Value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.
3, telecommunication cable according to claim 1 and 2 is characterized in that:
The conductor that adopts in the described telecommunication cable is the solid bare copper conductor of sub-thread, or the tin-coated copper conductor, or the silver-plated copper conductor;
The insulating material that adopts is solid or polyethylene foamed.
4, the right fitting method of twisted-pair feeder in a kind of telecommunication cable is characterized in that:
With choose many to twisted-pair feeder when forming telecommunication cable, described many to twisted-pair feeder to millimeter cooperating more than or equal to (2.0 ± 0.1) by the absolute value of the difference of the right pitch of all adjacent twisted-pair feeders;
The absolute value of described many tolerances to the right pitch of each right twisted-pair feeder of twisted-pair feeder of choosing is smaller or equal to 0.30 millimeter;
Described choose many to the right pitch of each right twisted-pair feeder of twisted-pair feeder smaller or equal to 75.0 millimeters.
5, the right fitting method of twisted-pair feeder in the telecommunication cable according to claim 4 is characterized in that:
Described choose many to twisted-pair feeder when being at least more than 8 pairs,
The right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps
Value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.
6, a kind of communication system comprises distributing frame and communication equipment, it is characterized in that:
Described distributing frame is connected by telecommunication cable with described communication equipment, wherein,
Described telecommunication cable by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
7, communication system according to claim 6 is characterized in that:
The twisted-pair feeder of described composition telecommunication cable when being at least more than 8 pairs,
The right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps
Value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.
8, according to claim 6 or 7 described communication systems, it is characterized in that:
The conductor that adopts in the described telecommunication cable is the solid bare copper conductor of sub-thread, or the tin-coated copper conductor, or the silver-plated copper conductor;
The insulating material that adopts is solid or polyethylene foamed.
9, a kind of communication cabinet is equiped with at least two veneers in the described communication cabinet, it is characterized in that:
Described two veneers connect by telecommunication cable, form business interconnection, wherein,
Described telecommunication cable by many to twisted-pair feeder to forming; The absolute value of described many differences to the right pitch of the adjacent twisted-pair feeder of twisted pairs is more than or equal to (2.0 ± 0.1) millimeter; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the described telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the described telecommunication cable is smaller or equal to 75.0 millimeters.
10, communication cabinet according to claim 9 is characterized in that:
The twisted-pair feeder of described composition telecommunication cable when being at least more than 8 pairs,
The right pitch value of per 8 pairs of twisted-pair feeders is: 9.15 millimeters, 21.50 millimeters, 11.40 millimeters, 15.32 millimeters, 19.83 millimeters, 23.32 millimeters, 13.82 millimeters, 16.87 millimeters; Perhaps
Value is: 9.96 millimeters, 22.30 millimeters, 12.62 millimeters, 16.19 millimeters, 20.36 millimeters, 25.91 millimeters, 14.53 millimeters, 18.36 millimeters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101953688A CN101458979B (en) | 2007-12-13 | 2007-12-13 | Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable |
| PCT/CN2008/073330 WO2009074102A1 (en) | 2007-12-13 | 2008-12-04 | Communication cable, system, cabinet and combining method for twisted pairs in communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101953688A CN101458979B (en) | 2007-12-13 | 2007-12-13 | Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101458979A true CN101458979A (en) | 2009-06-17 |
| CN101458979B CN101458979B (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101953688A Expired - Fee Related CN101458979B (en) | 2007-12-13 | 2007-12-13 | Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101458979B (en) |
| WO (1) | WO2009074102A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263348A (en) * | 2011-07-01 | 2011-11-30 | 武汉电信器件有限公司 | Intensive multi-channel electrical interconnection component |
| CN113302706A (en) * | 2019-02-19 | 2021-08-24 | Ls电线有限公司 | Ethernet cable |
| US11694823B2 (en) | 2019-02-19 | 2023-07-04 | Ls Cable & System Ltd. | Ethernet cable |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3102160A (en) * | 1961-12-22 | 1963-08-27 | Whitney Blake Co | Telephone cable construction |
| CN2091020U (en) * | 1991-04-18 | 1991-12-18 | 西安市凯达西科技有限公司 | Data transmission cable for earthquake acquiring system |
| US6222129B1 (en) * | 1993-03-17 | 2001-04-24 | Belden Wire & Cable Company | Twisted pair cable |
| US5606151A (en) * | 1993-03-17 | 1997-02-25 | Belden Wire & Cable Company | Twisted parallel cable |
| KR100603087B1 (en) * | 2004-07-22 | 2006-07-20 | 엘에스전선 주식회사 | Utp cable assembly having means for preventing cross talk |
| CN101004958B (en) * | 2006-09-30 | 2010-09-08 | 华为技术有限公司 | Communication cable |
-
2007
- 2007-12-13 CN CN2007101953688A patent/CN101458979B/en not_active Expired - Fee Related
-
2008
- 2008-12-04 WO PCT/CN2008/073330 patent/WO2009074102A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263348A (en) * | 2011-07-01 | 2011-11-30 | 武汉电信器件有限公司 | Intensive multi-channel electrical interconnection component |
| CN113302706A (en) * | 2019-02-19 | 2021-08-24 | Ls电线有限公司 | Ethernet cable |
| CN113302706B (en) * | 2019-02-19 | 2022-07-22 | Ls电线有限公司 | Ethernet cable |
| US11694823B2 (en) | 2019-02-19 | 2023-07-04 | Ls Cable & System Ltd. | Ethernet cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101458979B (en) | 2012-06-27 |
| WO2009074102A1 (en) | 2009-06-18 |
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