CN101458979B - 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 PDF

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Publication number
CN101458979B
CN101458979B CN2007101953688A CN200710195368A CN101458979B CN 101458979 B CN101458979 B CN 101458979B CN 2007101953688 A CN2007101953688 A CN 2007101953688A CN 200710195368 A CN200710195368 A CN 200710195368A CN 101458979 B CN101458979 B CN 101458979B
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millimeters
twisted
pair feeder
telecommunication cable
pitch
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CN101458979A (en
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邓庆龙
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Zhao Aifeng
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Huawei Technologies Co Ltd
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Priority to CN2007101953688A priority Critical patent/CN101458979B/en
Priority to PCT/CN2008/073330 priority patent/WO2009074102A1/en
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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

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  • Electromagnetism (AREA)
  • Communication Cables (AREA)

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

The right fitting method of twisted-pair feeder in telecommunication cable, system, rack and the telecommunication cable
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, like 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 one type of communications field transmission technology based on cable system; Using the most at present, the xDSL technology comprises ADSL (Asymmetric digitalsubscriber line; The ADSL), ADSL2+ (Enhanced 2nd asymmetric digitalsubscriber line; Enhancement mode second generation ADSL), 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 professional 30MHz of VDSL2 from the professional 1.1MHz of ADSL; 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, and 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.
Twisted-pair feeder is to sequence number Pitch (millimeter)
P01 P09 P17 P25 14.6
P02 P10 P18 P26 16.3
P03 P11 P19 P27 18.9
P04 P12 P20 P28 20.7
P05 P13 P21 P29 22.7
P06 P14 P22 P30 24.7
P07 P15 P23 P31 26.9
P08 P16 P24 P32 29.2
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 sketch map of prior art twisted-pair feeder.Pair a representes that twisted-pair feeder is to a among the figure.Pair b representes that twisted-pair feeder is to b.Wire a1, Wire a2 represent to form the two insulated heart yearns of twisted-pair feeder to a respectively.Wire b1, Wire b2 represent to form the two insulated heart yearns of twisted-pair feeder to b respectively.La, La ' represent the pitch value of twisted-pair feeder to 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 possibly equate that also possibility is unequal, but all in the pitch margin of tolerance.Lb, Lb ' represent the pitch value of twisted-pair feeder to 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 also remains to be improved with index such as level far-end crosstalk attentuation (ELFEXT) such as grade.
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 realizes through following technical scheme:
The embodiment of the invention provides a kind of telecommunication cable, said telecommunication cable by many to twisted-pair feeder to forming; The absolute value of said 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 said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said 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, said 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 said 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; Said 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: said distributing frame is connected through telecommunication cable with said communication equipment, wherein, said telecommunication cable by many to twisted-pair feeder to forming; The absolute value of said 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 said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said 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 said communication cabinet: said two veneers connect through telecommunication cable, form business interconnection, wherein, said telecommunication cable by many to twisted-pair feeder to forming; The absolute value of said 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 said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said 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, carry out professional transmission limit test then according to this thinking; 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, and the right pitch of each twisted-pair feeder is during smaller or equal to 75.0 millimeters, and 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 sketch map of each twisted-pair feeder of prior art telecommunication cable;
Fig. 2 is the right pitch sketch map of prior art twisted-pair feeder;
Fig. 3 is the right arrangement sketch map of each twisted-pair feeder of the embodiment of the invention one telecommunication cable;
Fig. 4 is the right arrangement sketch map of each twisted-pair feeder of the embodiment of the invention two telecommunication cables;
Fig. 5 is the right arrangement sketch map 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 sketch map;
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 hopes 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 said 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, the right pitch of twisted-pair feeder of forming this telecommunication cable is selected and cooperates to satisfy following requirement the (establish pitch and adopt letter representation shown in Figure 2):
(1) any right pitch of 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.
For better understanding embodiment of the invention technical scheme, further introduce the specific embodiment of the invention in detail below in conjunction with accompanying drawing and form.
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 representes 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 when arrangement lays, carrying 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 ".
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.
Line is to sequence number Pitch (millimeter)
Scheme one Scheme two
P01 9.15 9.96
P02 21.50 22.30
P03 11.40 12.62
P04 15.32 16.19
P05 19.83 20.36
P06 23.32 25.91
P07 13.82 14.53
P08 16.87 18.36
The right pitch of table 3 embodiment of the invention one each twisted-pair feeder is selected and is cooperated
What need explanation is, the selection of the concrete data of pitch and cooperate just example in the above-mentioned table, and 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 when arrangement lays, carrying 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 ".
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
What need explanation is, the selection of the concrete data of pitch and cooperate just example in the above-mentioned table, and 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, adopts 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.
Line is to sequence number Twisted-pair feeder is to insulation heart yearn chromatogram
Subunit 1 P01 Subunit 3 P17 Indigo plant in vain,
P02 P18 Orange in vain,
P03 P19 In vain, green
P04 P20 Palm fibre in vain,
P05 P21 Ash in vain,
P06 P22 Red, blue
P07 P23 Red, orange
P08 P24 Red, green
Subunit 2 P09 Subunit 4 P25 Red, brown
P10 P26 Red, grey
P11 P27 Black, blue
P12 P28 Black, orange
P13 P29 Black, green
P14 P30 Black, brown
P15 P31 Black, grey
P16 P32 Yellow, blue
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 when arrangement lays, carrying 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 ".
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.
Line is to sequence number Pitch (millimeter)
Subunit 1 P01 Subunit 3 P17 9.15
P02 P18 21.50
P03 P19 11.40
P04 P20 15.32
P05 P21 19.83
P06 P22 23.32
P07 P23 13.82
P08 P24 16.87
Subunit 2 P09 Subunit 4 P25 9.96
P10 P26 22.30
P11 P27 12.62
P12 P28 16.19
P13 P29 20.36
P14 P30 25.91
P15 P31 14.53
P16 P32 18.36
The right pitch of table 7 embodiment of the invention three each twisted-pair feeders is selected and is cooperated
What need explanation is, the selection of the concrete data of pitch and cooperate just example in the above-mentioned table, and 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 sketch map.
As shown in Figure 6, communication system comprises distributing frame 601 and communication equipment 602, and said distributing frame 601 is connected through telecommunication cable 603 with said communication equipment 602.
The conductor that adopts in the said 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.
Said telecommunication cable 603 by many to twisted-pair feeder to forming; The absolute value of said 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 said telecommunication cable 603 is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said telecommunication cable 603 is smaller or equal to 75.0 millimeters.
The twisted-pair feeder of said 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.What need explanation is, the selection of the concrete data of these pitches and cooperate just example, and 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, said two veneers 701 are connected through telecommunication cable 703 with 702, form business interconnection.
The conductor that adopts in the said 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.
Said telecommunication cable 703 by many to twisted-pair feeder to forming; The absolute value of said 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 said telecommunication cable 703 is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said telecommunication cable 703 is smaller or equal to 75.0 millimeters.
The twisted-pair feeder of said 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.What need explanation is, the selection of the concrete data of these pitches and cooperate just example, and 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, carry out professional transmission limit test then according to this thinking; 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, and the right pitch of each twisted-pair feeder is during smaller or equal to 75.0 millimeters, and 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 has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.

Claims (6)

1. telecommunication cable is characterized in that:
Said telecommunication cable by many to twisted-pair feeder to forming;
The absolute value of said 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 millimeters; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said telecommunication cable is smaller or equal to 75.0 millimeters; The twisted-pair feeder of said composition telecommunication cable is to being 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.
2. telecommunication cable according to claim 1 is characterized in that:
The conductor that adopts in the said 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.
3. the right fitting method of twisted-pair feeder in the telecommunication cable is characterized in that:
With choose many to twisted-pair feeder when forming telecommunication cable, said many twisted-pair feeder is cooperated more than or equal to 2.0 ± 0.1 millimeters the absolute value by the difference of the right pitch of all adjacent twisted-pair feeders;
The absolute value of said 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;
Said choose many to the right pitch of each right twisted-pair feeder of twisted-pair feeder smaller or equal to 75.0 millimeters; The twisted-pair feeder of said composition telecommunication cable is to being 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.
4. a communication system comprises distributing frame and communication equipment, it is characterized in that:
Said distributing frame is connected through telecommunication cable with said communication equipment, wherein,
Said telecommunication cable by many to twisted-pair feeder to forming; The absolute value of said 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 millimeters; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said telecommunication cable is smaller or equal to 75.0 millimeters; The twisted-pair feeder of said composition telecommunication cable is to being 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.
5. communication system according to claim 4 is characterized in that:
The conductor that adopts in the said 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.
6. a communication cabinet is equiped with at least two veneers in the said communication cabinet, it is characterized in that:
Said two veneers connect through telecommunication cable, form business interconnection, wherein,
Said telecommunication cable by many to twisted-pair feeder to forming; The absolute value of said 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 millimeters; The absolute value of the tolerance of the pitch that each twisted-pair feeder in the said telecommunication cable is right is smaller or equal to 0.30 millimeter; The right pitch of each twisted-pair feeder in the said telecommunication cable is smaller or equal to 75.0 millimeters; The twisted-pair feeder of said composition telecommunication cable is to being 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.
CN2007101953688A 2007-12-13 2007-12-13 Communication electric cable, system, cabinet and twisted pair matching method in communication electric cable Expired - Fee Related CN101458979B (en)

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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

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JP7439100B2 (en) 2019-02-19 2024-02-27 エルエス ケーブル アンド システム リミテッド． ethernet cable
KR102181049B1 (en) * 2019-02-19 2020-11-19 엘에스전선 주식회사 Ethernet cable

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