| HAI LALA MO MATUTUT | EL MAMA HATI
`
`US009991030B2
`
`( 12 ) United States Patent
`Wehrli et al .
`
`( 54 ) HIGH PERFORMANCE DATA
`COMMUNICATIONS CABLE
`( 71 ) Applicant : Belden Inc . , St . Louis , MO ( US )
`( 72 ) Inventors : Andrew John Wehrli , Monticello , KY
`( US ) ; William Thomas Clark ,
`Richmond , IN ( US ) ; Galen Mark
`Gareis , Oxford , OH ( US ) ; Douglas
`David Brenneke , Oxford , OH ( US )
`( 73 ) Assignee : Belden Inc . , St . Louis , MO ( US )
`Subject to any disclaimer , the term of this
`( * ) Notice :
`patent is extended or adjusted under 35
`U . S . C . 154 ( b ) by 0 days . days .
`This patent is subject to a terminal dis
`claimer .
`( 21 ) Appl . No . : 15 / 610 , 504
`May 31 , 2017
`( 22 )
`Filed :
`Prior Publication Data
`( 65 )
`US 2017 / 0271049 A1 Sep . 21 , 2017
`
`( 63 )
`
`( 51 )
`
`Related U . S . Application Data
`Continuation of application No . 14 / 520 , 125 , filed on
`Oct . 21 , 2014 , now Pat . No . 9 , 697 , 929 .
`( 60 ) Provisional application No . 61 / 894 , 728 , filed on Oct .
`23 , 2013 .
`Int . Ci .
`HOIB 7700
`HOIB 11 / 06
`HOIB 11 / 10
`HOIB 11 / 18
`HOIB 11 / 00
`
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`( 2006 . 01 )
`
`US 9 , 991 , 030 B2
`* Jun . 5 , 2018
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`( 58 )
`
`( 56 )
`
`( 10 ) Patent No . :
`( 45 ) Date of Patent :
`( 52 ) U . S . CI .
`CPC . . . . . . . . . . HOIB 11 / 06 ( 2013 . 01 ) ; HOIB 11 / 002
`( 2013 . 01 ) ; HOIB 11 / 1008 ( 2013 . 01 ) ; HOIB
`11 / 1847 ( 2013 . 01 ) ; Y1OT 29 / 49201 ( 2015 . 01 )
`Field of Classification Search
`CPC .
`. . . . . . . . . . . . . . . HO1B 3 / 00
`USPC . . . . . . 174 / 110 R , 110 SR , 113 C , 113 R , 115 ,
`174 / 116 , 117 R , 120 R , 120 SR
`See application file for complete search history .
`References Cited
`U . S . PATENT DOCUMENTS
`3 , 622 , 683 A *
`11 / 1971 Roberts . . . . . . . . . . . . . . . . HO1B 11 / 085
`174 / 103
`4 , 085 , 284 A *
`4 / 1978 Olszewski
`HOIB 11 / 085
`szewski . . . . . . . . . .
`174 / 106 R
`8 / 1979 Gabriel
`4 , 165 , 442 A *
`H01B 11 / 085
`174 / 105 B
`4 , 340 , 771 A *
`7 / 1982 Watts
`HOIB 11 / 085
`174 / 106 D
`4 , 453 , 031 A *
`6 / 1984 Justiss
`HOIB 11 / 085
`174 / 105 B
`( Continued )
`Primary Examiner — William H Mayo , III
`( 74 ) Attorney , Agent , or Firm — Daniel Rose ; Foley &
`Lardner LLP
`ABSTRACT
`( 57 )
`Two electromagnetic interference ( EMI ) controlling tape
`application methodologies for unshielded twisted pair
`( UTP ) cable include Fixed Tape Control ( FTC ) and Oscil
`lating Tape Control ( OTC ) . In FTC , tape application angle
`and edge placement are controlled to maintain position of
`the tape edges over a base of nonconductive filler in the
`cable . In OTC , the tape application angle is continuously
`varied , resulting in crossing of the tape edges over all of the
`pairs of conductors with varying periodicity . In both imple
`mentations , the filler allows a cylindrical shape .
`20 Claims , 25 Drawing Sheets
`( 10 of 25 Drawing Sheet ( s ) Filed in Color )
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`130212
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`L
`0 mm2 - 108
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`- 304
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`US 9 , 991 , 030 B2
`Page 2
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`( 56 )
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`References Cited
`U . S . PATENT DOCUMENTS
`6 , 365 , 836 B1 *
`4 / 2002 Blouin . . . . . . . . . . . . . . . . HO1B 11 / 04
`174 / 113 C
`6 , 812 , 408 B2 * 11 / 2004 Clark
`HO1B 11 / 04
`174 / 113 C
`8 , 729 , 394 B2 *
`5 / 2014 Clark
`H01B 11 / 06
`174 / 113 C
`2006 / 0169478 A1 *
`8 / 2006 Clark
`H01B 11 / 04
`. . . . . . . . . . . . . .
`174 / 113 C
`2007 / 0037419 A1 *
`2 / 2007 Sparrowhawk . . . . H01B 11 / 1008
`439 / 98
`2012 / 0222883 A1 *
`9 / 2012 Nordin . . . . . . . . . . . . . . . . H01B 11 / 08
`174 / 113 C
`2012 / 0227998 A1 *
`9 / 2012 Lindstrom . . . . . . . . . HO1B 11 / 1025
`174 / 103
`
`. . . . . . . . . . . . . .
`
`* cited by examiner
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`

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`U . S . Patent
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`Jun . 5 , 2018
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`U . S . Patent
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`U.S. Patent
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`Jun. 5, 2018
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`Jun . 5 , 2018
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`Jun. 5, 2018
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`U . S . Patent
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`Jun . 5 , 2018
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`Jun . 5 , 2018
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`U . S . Patent
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`Jun . 5 , 2018
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`U . S . Patent
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`Jun . 5 , 2018
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`Sheet 14 of 25
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`US 9 , 991 , 030 B2
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`U . S . Patent
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`Jun 5 , 2018
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`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 16 of 25
`
`US 9 , 991 , 030 B2
`
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`

`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 17 of 25
`
`US 9 , 991 , 030 B2
`
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`

`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 18 of 25
`
`US 9 , 991 , 030 B2
`
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`

`

`U . S . Patent
`
`Jun 5 , 2018
`
`Sheet 19 of 25
`
`US 9 , 991 , 030 B2
`
`
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`

`

`U . S . Patent
`
`Jun 5 , 2018
`
`Sheet 20 of 25
`
`US 9 , 991 , 030 B2
`
`Fixed Tape . . . Incorrect tape edge location
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`

`

`U . S . Patent
`
`Jun 5 , 2018
`
`Sheet 21 of 25
`
`US 9 , 991 , 030 B2
`
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`

`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 22 of 25
`
`US 9 , 991 , 030 B2
`
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`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 23 of 25
`
`US 9 , 991 , 030 B2
`
`Count Mean
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`

`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 24 of 25
`
`US 9 , 991 , 030 B2
`
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`

`U . S . Patent
`
`Jun . 5 , 2018
`
`Sheet 25 of 25
`
`US 9 , 991 , 030 B2
`
`Oscillating Tape - - Return Loss
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`

`US 9 , 991 , 030 B2
`
`moisture within or around the cable , will cause part of a
`HIGH PERFORMANCE DATA
`COMMUNICATIONS CABLE
`transmitted signal to be reflected back to the source .
`Typical methods for addressing alien and internal cross
`RELATED APPLICATIONS
`talk have tradeoffs . For example , alien crosstalk may be
`5 reduced by increasing the size of the cable , adding weight
`and volume and reducing the number of cables that may be
`The present application claims the benefit of and priority
`placed in a cable tray . Other cables have implemented
`as a continuation to U . S . Nonprovisional application Ser .
`complex discontinuous EMI barriers and tapes in an attempt
`No . 14 / 520 , 125 , entitled “ Improved High Performance Data
`to control alien crosstalk and ground current disruption , but
`Communications Cable , ” filed Oct . 21 , 2014 ; which claims
`priority to U . S . Provisional Application No . 61 / 894 , 728 , 10 add significant expense and may actually increase alien
`entitled “ Improved High Performance Data Communica
`crosstalk in some implementations . Fully shielded cables ,
`tions Cable , ” filed Oct . 23 , 2013 , the entirety of each of
`such as foil over unshielded twisted pair ( F / UTP ) designs
`include drain wires for grounding a conductive foil shield ,
`which are hereby incorporated by reference .
`but are significantly more expensive in total installed cost
`FIELD
`15 with the use of shielded connectors and other related hard
`ware . Fully shielded cables are also more difficult to termi
`The present application relates to data cables . In particu
`nate and may induce ground loop currents and noise if
`lar , the present application relates to a filler for controlled
`improperly terminated .
`placement of pairs of conductors within a data cable and
`controlled application angle of an electromagnetic interfer - 20
`SUMMARY
`ence ( EMI ) reducing tape .
`The present disclosure describes methods of manufacture
`BACKGROUND
`and implementations of unshielded twisted pair ( UTP )
`cables with a barrier tape , which may be conductive or
`High - bandwidth data cable standards established by 25 partially conductive , with reduced alien crosstalk and return
`industry standards organizations including the Telecommu -
`loss without increased material expense , via control of
`nications Industry Association ( TIA ) , International Organi -
`application angle of the barrier tape around helically
`zation for Standardization ( ISO ) , and the American National
`arranged twisted pairs of conductors . A filler is included
`Standards Institute ( ANSI ) such as ANSI / TIA - 568 - C . 2 ,
`within the cable to separate the twisted pairs and provide a
`include performance requirements for cables commonly 30 support base for the barrier tape , allowing a cylindrical
`referred to as Category 6A type . These high performance
`shape for the cable for optimized ground plane uniformity
`Category 6A cables have strict specifications for maximum
`and stability for improved impedance and return loss per
`return loss and crosstalk , amongst other electrical perfor -
`formance . The filler also provides an air insulating layer
`mance parameters . Failure to meet these requirements
`above the pairs and under the barrier tape as needed without
`means that the cable may not be usable for high data rate 35 requiring an inner jacket between the pairs and tape , poten
`communications such as 1000BASE - T ( Gigabit Ethernet ) ,
`tially removing a costly manufacturing step .
`10GBASE - T ( 10 - Gigabit Ethernet ) , or other future emerg -
`In a first imple