CN102364585B - Low-voltage remote power supply cable for high-speed Ethernet switch - Google Patents
Low-voltage remote power supply cable for high-speed Ethernet switch Download PDFInfo
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- CN102364585B CN102364585B CN 201110326233 CN201110326233A CN102364585B CN 102364585 B CN102364585 B CN 102364585B CN 201110326233 CN201110326233 CN 201110326233 CN 201110326233 A CN201110326233 A CN 201110326233A CN 102364585 B CN102364585 B CN 102364585B
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Abstract
The invention discloses a low-voltage remote power supply cable for a high-speed Ethernet switch. The low-voltage remote power supply cable comprises four single-wire copper conductors for transmitting electric energy, wherein the four single-wire copper conductors are stranded into an electroconductive cable core in a star-quad manner; four pairs of stranded wires are uniformly and sequentially arrayed on the periphery of the electroconductive cable core in an anticlockwise manner; the pitches of the first stranded wire pair and the third stranded wire pair are larger than the pitches of the second stranded pair and the fourth stranded wire pair; the first stranded wire pair and the third stranded wire pair are arrayed by being alternated with the second stranded pair and the fourth stranded wire pair; the pitch of the first stranded wire pair is more than the pitch of the third stranded wire pair; and the pitch of the second stranded wire pair is larger than the pitch of the fourth stranded wire pair. According to the low-voltage remote power supply cable disclosed by the invention, on the basis of transmission characteristics of communication cables and the characteristics of power transmission cables, the communication cables and the power transmission cables are guaranteed to be composited and are prevented from mutual interferences at the same time, and communication signals and a DC-48V power supply needed by a building switch are simultaneously transmitted to a broadband box in each building.
Description
Technical field
The present invention relates to a kind of too cable of network switch that is used for, relate in particular to a kind of high speed Ethernet exchange machine and use the low-voltage remote service cable.
Background technology
What most existing building switch adopted is the supply power mode of power taking on the spot.Along with being growing more intense of the professional competition of telecommunications fortune, what each telecom operators stressed is the service and the lean operation of brand.The supply power mode of the building switch of the overwhelming majority has no longer adapted to the competitive landscape of current telecommunication service, has influenced the professional service quality of Netcom.
Specifically, there is following drawback in power taking on the spot:
1. supply power the installation difficult coordination from this locality with electric unit or individual.
Internet resources can not make full use of, and power supply can not automatic control, passive being limited by, poor reliability.
3. the voltage ripple of power network scope is big and unstable, influences the equipment operate as normal.
4. power taking is constructed and the operation cost height usually on the spot.
5. national most of province, city's electric power are in short supply, cause power devices undesired.
6. summer, thunderbolt caused a large amount of exchange faults, and maintenance increases severely.
Therefore; How to design a kind of high speed Ethernet exchange machine and use the low-voltage remote service cable; Can be on the basis that has guaranteed telecommunication cable transmission characteristic and power transmission cable characteristic, composite communication cable and power transmission cable are also avoided its mutual interference, become the direction that those of ordinary skills make great efforts.
Summary of the invention
The present invention provides a kind of high speed Ethernet exchange machine to use the low-voltage remote service cable; This low-voltage remote service cable is on the basis that has guaranteed telecommunication cable transmission characteristic and power transmission cable characteristic; Compound telecommunication cable and power transmission cable; Simultaneously can avoid its mutual interference, realize simultaneously signal of communication and the required DC-48V power delivery of building switch being arrived in the broadband case of each building.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of high speed Ethernet exchange machine is used the low-voltage remote service cable, comprising: four single line copper conductors as electric energy transmitting, and these four single line copper conductors are with the stranded formation conduction of star quad stranding formula cable core; Be evenly distributed with eight around this conduction cable core and be coated with polyethylene layer
Copper conductor, four pairs of twisted wires as information communication of the stranded in twos formation of these eight copper conductors are right;
Said four twisted pair wire centerings, first twisted wire to, second twisted wire to, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise in the periphery of said conduction cable core; First twisted wire to the right pitch of the 3rd twisted wire greater than second twisted wire to the pitch right with the 4th twisted wire; First twisted wire to the 3rd twisted wire pair and second twisted wire to the 4th twisted wire to alternately; The right pitch of said first twisted wire is greater than the right pitch of the 3rd twisted wire, and the right pitch of said second twisted wire is greater than the right pitch of the 4th twisted wire;
Said four twisted pair wire outer surface all are coated with a foil shielding layer;
One polyester belt wrapped in said four twisted pair wires to the surface;
One polyethylene layer as oversheath is coated on said polyester belt laminar surface.
It is following further to improve technical scheme in the technique scheme:
1, in the such scheme, the right pitch of said first twisted wire is 17.7mm, and the right pitch of said second twisted wire is 11.7, and the right pitch of said the 3rd twisted wire is 14.4mm, and the right pitch of said the 4th twisted wire is 10.5mm.
2, in the such scheme, said conduction cable core and four twisted pair wires between and be positioned at the cable wicking surface and be coated with aluminium foil layer or copper wire braid.
3, in the such scheme, be provided with between said polyester belt and the polyethylene layer and tear rope.
4, in the such scheme, being 0.57 mm as the said copper conductor diameter of information communication, is 0.5mm as the said single line copper conductor diameter of electric energy transmitting.
5, in the such scheme, all annealed PROCESS FOR TREATMENT of said copper conductor and single line copper conductor.
Because the technique scheme utilization, the present invention compared with prior art has advantage:
1, switch of the present invention is used the low-voltage remote service cable; On the basis that guarantees the telecommunication cable transmission characteristic; Through adopting communication, can simultaneously signal of communication and the required DC-48V power delivery of building switch be arrived in the broadband case of each building with copper cable and power delivery copper cash.Adopt direct current suspension isolation technology from the local side power supply unit that is positioned at machine room; Be equipped with the automatic monitoring and protecting measure of global function safety; Output meets the adjustable direct current of 90V-140V of international safety standard requirement, directly supplies power to many Ethernet switches through the remote equipment of native system again.
2, switch of the present invention with the low-voltage remote service cable broken through traditional strand to line after the structure of stranding; Twisting having increased the power transmission line of star-quad construction in the middle of the line; Not only improve communication cable cross-talk (NEXT, FEXT) index effectively; Even also improved the surplus of loss (INSERTION LOSS), increase the stability of characteristic impedance (IMPEDANCE), simultaneously when guaranteeing the stable transmission performance of cable; Increase the performance of the transmission electricity of copper cable, avoided the drawback of power taking on the spot.
3, switch of the present invention is used the low-voltage remote service cable.
4, switch of the present invention is used the low-voltage remote service cable; High speed Ethernet exchange machine low-voltage remote service cable had both had the ability of transmission signals, had the advantage of transmission power supply again, with respect to power taking on the spot; This technology makes the power supply of building switch can be under unified technological service platform; Improve the power supply technique level effectively, simultaneously, enough practice thrift great amount of manpower and material resources, financial resources.Have tangible economic benefit and promotional value.
Description of drawings
Accompanying drawing 1 is that high speed Ethernet exchange machine of the present invention is with low-voltage remote service cable structural representation.
In the above accompanying drawing: 1, single line copper conductor; 2, conduction cable core; 3, copper conductor; 4, first twisted wire is right; 5, second twisted wire is right; 6, the 3rd twisted wire is right; 7, the 4th twisted wire is right; 8, polyester belt; 9, polyethylene layer; 10, foil shielding layer; 11, tear rope.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment: a kind of high speed Ethernet exchange machine is used the low-voltage remote service cable, comprising: four single line copper conductors 1 as electric energy transmitting, and these four single line copper conductors 1 are with the stranded formation conduction of star quad stranding formula cable core 2; Be evenly distributed with eight copper conductors 3 that are coated with polyethylene layer around this conduction cable core 2, four pairs of twisted wires as information communication of the stranded in twos formation of these eight copper conductors 3 are right;
Said four twisted pair wire centerings, first twisted wire is arranged in order in the periphery of said conduction cable core 27 the 6 and the 4th twisted wire the 5, the 3rd twisted wire 4, second twisted wire counterclockwise; First twisted wire to the 4 and the 3rd twisted wire to 6 pitch greater than second twisted wire to the 5 and the 4th twisted wire to 7 pitch; First twisted wire to the 4 and the 3rd twisted wire to 6 and second twisted wire to the 5 and the 4th twisted wire to 7 alternately; Said first twisted wire to 4 pitch greater than the 3rd twisted wire to 6 pitch, said second twisted wire to 5 pitch greater than the 4th twisted wire to 7 pitch; Said first twisted wire is 17.7mm to 4 pitch, and said second twisted wire is 11.7 to 5 pitch, and said the 3rd twisted wire is 14.4mm to 6 pitch, and said the 4th twisted wire is 10.5mm to 7 pitch;
Said four twisted pair wire outer surface all are coated with a foil shielding layer 10;
One polyester belt 8 wrapped in said four twisted pair wires to the surface;
One polyethylene layer 9 as oversheath is coated on said polyester belt 8 surfaces.
Be provided with between said polyester belt 8 and the polyethylene layer 9 and tear rope 11;
Above-mentioned conduction cable core 2 and four twisted pair wires between and be positioned at conduction cable core 2 surfaces and be coated with aluminium foil layer or copper wire braid.
Said copper conductor 3 diameters as information communication are 0.57 mm, are 0.5mm as said single line copper conductor 1 diameter of electric energy transmitting.
Above-mentioned copper conductor 3 and all annealed PROCESS FOR TREATMENT of single line copper conductor 1.
Theing contents are as follows of the present invention's exploitation.
(1) according to telecommunication cable standard and requirement, design conductor material and requirement:
Conductor: annealing bare copper conductor;
Conductor structure is used in communication: 0.57 mm;
Conductor structure: 0.5mm is used in transmission of electricity;
The mechanical and physical performance of the major-minor material of cable should be able to satisfy the performance of products index request;
The major-minor material of cable has the favorable manufacturability ability;
In the production process, each major-minor material is pollution-free to production environment, and unharmful substance generates and discharging;
(2) overcoat of cable: outside cable core, extrude PE as outer jacket, the PE outer jacket has the stretch-proof bending resistance, guarantees that cable does not have elongation strain, guarantees that its transmission characteristic is steady in a long-term.
(3) main performance index of finished cable:
Conductor DC resistance (20 ℃) :≤95 Ω/km;
The mutual capacitance of cable :≤56 nF/km;
The insulation resistance of cable: >=10000 M Ω km.
When adopting above-mentioned high speed Ethernet exchange machine with the low-voltage remote service cable.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. a high speed Ethernet exchange machine is used the low-voltage remote service cable, it is characterized in that: comprising: four single line copper conductors (1) as electric energy transmitting, and these four single line copper conductors (1) are with the stranded formation conduction of star quad stranding formula cable core (2); This conduction cable core (2) is evenly distributed with eight copper conductors (3) that are coated with polyethylene layer all around, and four pairs of twisted wires as information communication of the stranded in twos formation of these eight copper conductors (3) are right;
Said four twisted pair wire centerings, first twisted wire is arranged in order in the periphery of said conduction cable core (2) (7) (6) and the 4th twisted wire (5), the 3rd twisted wire (4), second twisted wire counterclockwise; First twisted wire to (4) and the 3rd twisted wire to the pitch of (6) greater than second twisted wire to (5) and the 4th twisted wire pitch to (7); First twisted wire to (4) and the 3rd twisted wire to (6) and second twisted wire to (5) and the 4th twisted wire to (7) alternately; Said first twisted wire to the pitch of (4) greater than the pitch of the 3rd twisted wire to (6), said second twisted wire to the pitch of (5) greater than the pitch of the 4th twisted wire to (7);
Said four twisted pair wire outer surface all are coated with a foil shielding layer (10)
One polyester belt (8) wrapped in said four twisted pair wires to the surface;
One polyethylene layer as oversheath (9) is coated on said polyester belt (8) surface.
2. low-voltage remote service cable according to claim 1; It is characterized in that: said first twisted wire is 17.7mm to the pitch of (4); Said second twisted wire is 11.7 mm to the pitch of (5); Said the 3rd twisted wire is 14.4mm to the pitch of (6), and said the 4th twisted wire is 10.5mm to the pitch of (7).
3. according to each described low-voltage remote service cable among the claim 1-2, it is characterized in that: said conduction cable core (2) and four twisted pair wires between and be positioned at conduction cable core (2) surface and be coated with aluminium foil layer or copper wire braid.
4. according to each described low-voltage remote service cable among the claim 1-2, it is characterized in that: be provided with between said polyester belt (8) and the polyethylene layer (9) and tear rope (11).
5. according to each described low-voltage remote service cable among the claim 1-2, it is characterized in that: said copper conductor (3) diameter as information communication is 0.57 mm, is 0.5mm as said single line copper conductor (1) diameter of electric energy transmitting.
6. according to each described low-voltage remote service cable among the claim 1-2, it is characterized in that: said copper conductor (3) and all annealed PROCESS FOR TREATMENT of single line copper conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110326233 CN102364585B (en) | 2011-10-25 | 2011-10-25 | Low-voltage remote power supply cable for high-speed Ethernet switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110326233 CN102364585B (en) | 2011-10-25 | 2011-10-25 | Low-voltage remote power supply cable for high-speed Ethernet switch |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210398481.7A Division CN102915804B (en) | 2011-10-25 | 2011-10-25 | Low-voltage remote power supply cable for Ethernet switches |
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| Publication Number | Publication Date |
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| CN102364585A CN102364585A (en) | 2012-02-29 |
| CN102364585B true CN102364585B (en) | 2012-11-28 |
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| CN 201110326233 Active CN102364585B (en) | 2011-10-25 | 2011-10-25 | Low-voltage remote power supply cable for high-speed Ethernet switch |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104064276B (en) * | 2013-03-19 | 2017-06-06 | 江苏亨通线缆科技有限公司 | The stretch-proof type communications cable |
| CN103165244B (en) * | 2013-03-19 | 2016-01-13 | 江苏亨通线缆科技有限公司 | There is the telecommunication cable of waterproof, anti-interference function |
| CN103137265B (en) * | 2013-03-19 | 2016-06-01 | 江苏亨通线缆科技有限公司 | Have that tension is stretched, the mixed type telecommunication cable of anti-interference function |
| CN103236317B (en) * | 2013-04-03 | 2016-05-18 | 江苏亨通线缆科技有限公司 | There is the compound data cable of low-loss of interference free performance |
| CN106531345A (en) * | 2013-04-03 | 2017-03-22 | 江苏亨通线缆科技有限公司 | Multipurpose four-core twinning communication cable |
| CN105405530A (en) * | 2013-04-03 | 2016-03-16 | 江苏亨通线缆科技有限公司 | Coaxial data compound cable |
| CN103258586B (en) * | 2013-05-16 | 2016-07-20 | 江苏亨通线缆科技有限公司 | The photoelectric composite data cable of hub-and-spoke configuration |
| CN104051073B (en) * | 2014-05-22 | 2017-02-15 | 江苏亨通线缆科技有限公司 | Shielding type data cable for mechanical arm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2735605B1 (en) * | 1995-06-15 | 1997-07-11 | Filotex Sa | HIGH FREQUENCY SIGNAL TRANSMISSION ELECTRIC CABLE AND METHOD FOR MANUFACTURING THE CABLE |
| FR2848719B1 (en) * | 2002-12-13 | 2005-03-04 | Nexans | MULTIFUNCTIONAL HYBRID CABLE FOR POWERING THE RESOURCES OF A USER STATION |
| CN201489861U (en) * | 2009-06-26 | 2010-05-26 | 淮南新光神光纤线缆有限公司 | Multicore low-smoke zero-halogen inflaming retarding ship-use control cable |
| CN201549247U (en) * | 2009-09-16 | 2010-08-11 | 北京福斯汽车电线有限公司 | Audio transmission and control cable used for automobile sound |
| CN202285176U (en) * | 2011-10-25 | 2012-06-27 | 江苏亨通线缆科技有限公司 | Low-voltage remote power supply cable for high-speed Ethernet switch |
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