CA2373503A1 - Low delay skew multi-pair cable and method of manufacture - Google Patents
Low delay skew multi-pair cable and method of manufacture Download PDFInfo
- Publication number
- CA2373503A1 CA2373503A1 CA002373503A CA2373503A CA2373503A1 CA 2373503 A1 CA2373503 A1 CA 2373503A1 CA 002373503 A CA002373503 A CA 002373503A CA 2373503 A CA2373503 A CA 2373503A CA 2373503 A1 CA2373503 A1 CA 2373503A1
- Authority
- CA
- Canada
- Prior art keywords
- twisted wire
- cable
- length
- strand twist
- lay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention is directed to a multi-pair cable (10) having an outer jacket (12) and at least two pairs of twisted wire cables (16) having different lay lengths and being disposed within the jacket (12). The wires (14) of each twisted wire pair (16) have a conductor (16) surrounded by an insulating material (20), wherein the conductors (18) of the respective twisted wire pairs (16) have different strand twist lengths. The lay lengths of the twist ed wire pairs (16) are correlated with the strand twist length of the conductor s (18) of the individual twisted wire pairs (16) so that the phase delay of th e twisted wire pairs (16) of the cable (10) is matched to within an acceptable range for data transmission. Conversely, where the lay lengths of the twiste d wire pairs (16) is specified, the strand twist lengths of the respective conductors (18) of the individual twisted wire pairs (16) can be correlated with the lay lengths of the twisted wire pairs (16) so that the phase delay of the twisted wire pairs (16) of the cable (10) is brought to within an acceptable range for the intended application.
Claims (25)
1. A low delay skew twisted wire pair cable suitable for high-speed data transmission, comprising:
a first twisted wire pair having a first lay length, wherein the conductor is comprised of a plurality of first wire strands having a first strand twist length; and a second twisted wire pair having a second lay length, wherein the conductor is comprised of a plurality of second wire strands having a second strand twist length that is different than the strand twist length of the first twisted wire pair;
wherein the lay length of the first and second wire strands are correlated with the strand twist lengths of the first and second twisted wire pairs so that the phase delay of said first and second twisted wire pairs is matched to within an acceptable range for data transmission.
a first twisted wire pair having a first lay length, wherein the conductor is comprised of a plurality of first wire strands having a first strand twist length; and a second twisted wire pair having a second lay length, wherein the conductor is comprised of a plurality of second wire strands having a second strand twist length that is different than the strand twist length of the first twisted wire pair;
wherein the lay length of the first and second wire strands are correlated with the strand twist lengths of the first and second twisted wire pairs so that the phase delay of said first and second twisted wire pairs is matched to within an acceptable range for data transmission.
2. The low delay skew cable of claim 1, wherein said strand twist lengths are inversely proportional to said lay lengths.
3. The low delay skew cable of claim 2, wherein said strand twist lengths are between about 0.5 and 1.5 inches.
4. The low delay skew cable of claim 2, wherein said first and second strand twist lengths are about 0.5 to 1.5 times said first and second lay lengths, respectively.
5. The low delay skew cable of claim 1, wherein the cable includes at least one additional twisted wire pair having a lay length, wherein the conductor is comprised of a plurality of wire strands having a strand twist length, and further wherein, the lay length and strand twist length of the additional twisted wire pair is correlated with the lay length and strand twist length of at least one other twisted wire pair so that the phase delay of the additional twisted wire pair is matched to within an acceptable range for data transmission.
6. The cable of claim l, wherein the cable wherein each conductor includes an insulating outer layer.
7. The cable of claim 1, wherein the cable includes an outer jacket comprised of a plastic material.
8. The cable of claim 7, wherein said plastic material is selected from the group consisting of fluoropolymers, polyvinyl chloride, and polyvinyl chloride alloys.
9. The cable of claim 7, wherein the outer jacket is molded over said first and second twisted wire pairs.
10. The cable of claim 1, wherein said conductor is comprised of a material selected from the group consisting of copper, aluminum, copper-clad steel, and plated copper.
11. The cable of claim 1, wherein the insulating material is comprised of a polymer.
12. The cable of claim 11, wherein the polymer comprised of a material selected from the group consisting of a polyolefin and a fluorinated polymer.
13. A low delay skew twisted wire pair cable suitable for high-speed data transmission, comprising:
a first plurality of twisted wire pairs each having a predetermined lay length, each wire having a conductor surrounded by an insulating material, wherein the conductor is comprised of a second plurality of wire strands each having a predetermined strand twist length;
wherein each strand twist length of the each wire pair is correlated with said lay lengths of each said twisted wire pairs so that the phase delay of each twisted wire pairs is matched to within an acceptable range for data transmission.
a first plurality of twisted wire pairs each having a predetermined lay length, each wire having a conductor surrounded by an insulating material, wherein the conductor is comprised of a second plurality of wire strands each having a predetermined strand twist length;
wherein each strand twist length of the each wire pair is correlated with said lay lengths of each said twisted wire pairs so that the phase delay of each twisted wire pairs is matched to within an acceptable range for data transmission.
14. The low delay skew cable of claim 13, wherein each said strand twist length is inversely proportional to at least one of said lay lengths.
15. The low delay skew cable of claim 13, wherein the capacitance of each twisted wire pairs is 12.5 ~ 0.5 pF/ft.
16. The low delay skew cable of claim 13, wherein said strand twist lengths are between about 0.5 and 1.5 inches.
17. The low delay skew cable of claim 16, wherein said first and second strand twist lengths are about 0.5 to 1.5 times said first and second lay lengths, respectively.
18. The low delay skew cable of claim 17, wherein said first plurality is four, and wherein wires of a first twisted wire pair have a lay length of 0.87 inches and a strand twist length of 0.33 inches, wires of a second twisted wire pair have a lay length of 0.74 inches and a strand twist length of 0.36 inches, wires of a third twisted wire pair have a lay length of 0.58 inches and a strand twist length of 0.40 inches, and wires of a fourth twisted wire pair have a lay length of 0.49 inches and a strand twist length of 0.50 inches.
19. A method for making a low delay skew twisted wire pair cable suitable for high-speed data transmission, comprising:
providing a first twisted wire pair having a first lay length, and, wherein the conductor is comprised of a plurality of first wire strands having a first strand twist length;
providing a second pair of wires, wherein the conductor is comprised of a plurality of second wire strands having a second strand twist length which is different than the first strand twist length; and twisting the second pair of wires to provide a second lay length wherein the phase delay of the first and second twisted wire pairs is matched to within an acceptable range for data transmission.
providing a first twisted wire pair having a first lay length, and, wherein the conductor is comprised of a plurality of first wire strands having a first strand twist length;
providing a second pair of wires, wherein the conductor is comprised of a plurality of second wire strands having a second strand twist length which is different than the first strand twist length; and twisting the second pair of wires to provide a second lay length wherein the phase delay of the first and second twisted wire pairs is matched to within an acceptable range for data transmission.
20. The method of claim 19, further including the step of applying an insulating material around each conductor.
21. The method of claim 19, wherein the method includes the step of calculating the lay length for the second twisted wire pair based upon a correlation between the first strand twist length, the second strand twist length, and the first lay length.
22. The method of claim 19, wherein the method includes the step of providing an outer jacket.
23. The method of claim 19, wherein at least one additional twisted wire pair is provided.
24. The method of claim 20, wherein the lay lengths of the twisted wire pairs and the strand twist lengths are matched so that the capacitance of at least two of the twisted wire pairs of the cable is within 12.5 ~ 0.5 pF/ft.
25. The method of claim 22, wherein the lay lengths of the twisted wire pairs and the strand twist lengths are matched so that the maximum phase delay between any two of the twisted wire pairs of the cable is within an acceptable transmission range.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13667499P | 1999-05-28 | 1999-05-28 | |
| US60/136,674 | 1999-05-28 | ||
| US09/578,982 US6323427B1 (en) | 1999-05-28 | 2000-05-25 | Low delay skew multi-pair cable and method of manufacture |
| US09/578,982 | 2000-05-25 | ||
| PCT/US2000/014443 WO2000074078A1 (en) | 1999-05-28 | 2000-05-25 | Low delay skew multi-pair cable and method of manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2373503A1 true CA2373503A1 (en) | 2000-12-07 |
| CA2373503C CA2373503C (en) | 2009-12-01 |
Family
ID=22473869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002373503A Expired - Fee Related CA2373503C (en) | 1999-05-28 | 2000-05-25 | Low delay skew multi-pair cable and method of manufacture |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6323427B1 (en) |
| EP (1) | EP1198800A4 (en) |
| KR (1) | KR100708407B1 (en) |
| CN (1) | CN1206665C (en) |
| AU (1) | AU775768B2 (en) |
| BR (1) | BR0011561B1 (en) |
| CA (1) | CA2373503C (en) |
| HK (1) | HK1047818A1 (en) |
| MX (1) | MXPA01012337A (en) |
| WO (1) | WO2000074078A1 (en) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6300687B1 (en) * | 1998-06-26 | 2001-10-09 | International Business Machines Corporation | Micro-flex technology in semiconductor packages |
| FR2830156B1 (en) * | 2001-09-25 | 2004-11-26 | Henri Lee | TV DISTRIBUTION SYSTEM AND PROCESSING UNIT USED IN THIS DISTRIBUTION SYSTEM |
| AU2003228748A1 (en) * | 2002-05-02 | 2003-11-17 | Belden Technologies, Inc. | Surfaced cable filler |
| US6825410B2 (en) * | 2002-08-26 | 2004-11-30 | Hon Hai Precision Ind. Co., Ltd. | Bundle twisted-pair cable |
| US7009105B2 (en) * | 2002-08-26 | 2006-03-07 | Hon Hai Precision Ind. Co., Ltd. | Bundle twisted-pair cable |
| US7511225B2 (en) | 2002-09-24 | 2009-03-31 | Adc Incorporated | Communication wire |
| US20040074668A1 (en) * | 2002-10-16 | 2004-04-22 | Steve Somers | Cable for minimizing skew delay and crosstalk |
| US7078626B2 (en) * | 2004-03-12 | 2006-07-18 | Rgb Systems, Inc. | Cable apparatus for minimizing skew delay of analog signals and cross-talk from digital signals and method of making same |
| US7109424B2 (en) | 2003-07-11 | 2006-09-19 | Panduit Corp. | Alien crosstalk suppression with enhanced patch cord |
| US7030321B2 (en) * | 2003-07-28 | 2006-04-18 | Belden Cdt Networking, Inc. | Skew adjusted data cable |
| US7115815B2 (en) | 2003-10-31 | 2006-10-03 | Adc Telecommunications, Inc. | Cable utilizing varying lay length mechanisms to minimize alien crosstalk |
| US7214884B2 (en) | 2003-10-31 | 2007-05-08 | Adc Incorporated | Cable with offset filler |
| JP4423168B2 (en) * | 2004-11-02 | 2010-03-03 | 株式会社ミツトヨ | Surface texture measuring device |
| US7259993B2 (en) * | 2005-06-03 | 2007-08-21 | Infineon Technologies Ag | Reference scheme for a non-volatile semiconductor memory device |
| KR100725287B1 (en) * | 2005-07-28 | 2007-06-07 | 엘에스전선 주식회사 | UTP cable for transmitting high frequency signal |
| KR100759629B1 (en) * | 2005-12-16 | 2007-09-17 | 엘에스전선 주식회사 | Data cable for telecommunication having spacer formed on inner surface of jacket |
| US20070151747A1 (en) * | 2005-12-29 | 2007-07-05 | Jed Hacker | Electrical cable |
| US7329814B2 (en) | 2005-12-29 | 2008-02-12 | Capricorn Audio Technologies Ltd | Electrical cable |
| US7375284B2 (en) | 2006-06-21 | 2008-05-20 | Adc Telecommunications, Inc. | Multi-pair cable with varying lay length |
| US7413466B2 (en) * | 2006-08-29 | 2008-08-19 | Adc Telecommunications, Inc. | Threaded connector and patch cord having a threaded connector |
| US7816606B2 (en) * | 2007-07-12 | 2010-10-19 | Adc Telecommunications, Inc. | Telecommunication wire with low dielectric constant insulator |
| CN101483361B (en) * | 2008-01-11 | 2011-12-07 | 德昌电机(深圳)有限公司 | Stator winding construction and winding method for slotless motor stator winding, and stator construction with the winding construction |
| US8704094B1 (en) * | 2011-03-08 | 2014-04-22 | Superior Essex International LP | Twisted pair data cable |
| WO2012177486A2 (en) | 2011-06-21 | 2012-12-27 | Adc Telecommunications, Inc. | Connector with cable retention feature and patch cord having the same |
| US8684763B2 (en) | 2011-06-21 | 2014-04-01 | Adc Telecommunications, Inc. | Connector with slideable retention feature and patch cord having the same |
| DE102014000897A1 (en) * | 2014-01-23 | 2015-07-23 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | cable assembly |
| WO2017168842A1 (en) * | 2016-03-31 | 2017-10-05 | 株式会社オートネットワーク技術研究所 | Electric wire for communication |
| JP6075490B1 (en) | 2016-03-31 | 2017-02-08 | 株式会社オートネットワーク技術研究所 | Shield wire for communication |
| JP6760392B2 (en) * | 2016-11-28 | 2020-09-23 | 株式会社オートネットワーク技術研究所 | Shielded cable for communication |
| JP2019102268A (en) * | 2017-12-01 | 2019-06-24 | 住友電気工業株式会社 | Multicore cable |
| CN108152631B (en) * | 2017-12-26 | 2020-06-30 | 常熟市景弘盛通信科技股份有限公司 | High-frequency signal line quality detection system |
| GB2608708A (en) * | 2018-05-25 | 2023-01-11 | Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Truck Trailer Interface |
| JP7361053B2 (en) * | 2018-06-07 | 2023-10-13 | エネルテクノス リミテッド | capacitive power transmission cable |
| US11682501B2 (en) * | 2020-09-22 | 2023-06-20 | Belden Inc. | Hybrid high frequency separator with parametric control ratios of conductive components |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227600B (en) * | 1989-01-23 | 1993-05-26 | Secr Defence | Matched lay stranding of transmission wires |
| US5493071A (en) | 1994-11-10 | 1996-02-20 | Berk-Tek, Inc. | Communication cable for use in a plenum |
| US5619016A (en) | 1995-01-31 | 1997-04-08 | Alcatel Na Cable Systems, Inc. | Communication cable for use in a plenum |
| US5767441A (en) | 1996-01-04 | 1998-06-16 | General Cable Industries | Paired electrical cable having improved transmission properties and method for making same |
| US5763823A (en) * | 1996-01-12 | 1998-06-09 | Belden Wire & Cable Company | Patch cable for high-speed LAN applications |
| SE506476C2 (en) | 1996-04-18 | 1997-12-22 | Interconnect Ab | Procedures for the manufacture of shielded cables, as well as cables made according to the procedures |
| CA2206022C (en) * | 1996-06-03 | 2001-07-03 | Commscope, Inc. | Twisted pairs communications cable |
| US5814768A (en) * | 1996-06-03 | 1998-09-29 | Commscope, Inc. | Twisted pairs communications cable |
| US5834697A (en) * | 1996-08-01 | 1998-11-10 | Cable Design Technologies, Inc. | Signal phase delay controlled data cables having dissimilar insulation materials |
| CA2295078A1 (en) | 1997-06-26 | 1999-01-07 | Interconnect Ab | A patch cable and connector assembly, and a method for manufacturing the same |
| US6096977A (en) * | 1998-09-04 | 2000-08-01 | Lucent Technologies Inc. | High speed transmission patch cord cable |
-
2000
- 2000-05-25 US US09/578,982 patent/US6323427B1/en not_active Expired - Lifetime
- 2000-05-25 KR KR1020017015108A patent/KR100708407B1/en not_active IP Right Cessation
- 2000-05-25 AU AU52903/00A patent/AU775768B2/en not_active Ceased
- 2000-05-25 BR BRPI0011561-4A patent/BR0011561B1/en not_active IP Right Cessation
- 2000-05-25 CA CA002373503A patent/CA2373503C/en not_active Expired - Fee Related
- 2000-05-25 EP EP00937777A patent/EP1198800A4/en not_active Withdrawn
- 2000-05-25 MX MXPA01012337A patent/MXPA01012337A/en active IP Right Grant
- 2000-05-25 CN CNB008092052A patent/CN1206665C/en not_active Expired - Fee Related
- 2000-05-25 WO PCT/US2000/014443 patent/WO2000074078A1/en active Search and Examination
-
2002
- 2002-12-20 HK HK02109251A patent/HK1047818A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR0011561B1 (en) | 2010-06-15 |
| KR20020036781A (en) | 2002-05-16 |
| CN1206665C (en) | 2005-06-15 |
| BR0011561A (en) | 2002-02-26 |
| AU5290300A (en) | 2000-12-18 |
| HK1047818A1 (en) | 2003-03-07 |
| US6323427B1 (en) | 2001-11-27 |
| KR100708407B1 (en) | 2007-04-18 |
| EP1198800A1 (en) | 2002-04-24 |
| CN1357146A (en) | 2002-07-03 |
| MXPA01012337A (en) | 2003-06-24 |
| CA2373503C (en) | 2009-12-01 |
| EP1198800A4 (en) | 2006-06-07 |
| WO2000074078A1 (en) | 2000-12-07 |
| AU775768B2 (en) | 2004-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130527 |