GB2510572A - Plug with cross-talk compensation - Google Patents

Plug with cross-talk compensation Download PDF

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Publication number
GB2510572A
GB2510572A GB201302139A GB201302139A GB2510572A GB 2510572 A GB2510572 A GB 2510572A GB 201302139 A GB201302139 A GB 201302139A GB 201302139 A GB201302139 A GB 201302139A GB 2510572 A GB2510572 A GB 2510572A
Authority
GB
United Kingdom
Prior art keywords
plug
cross
terminal module
telecommunications
talk
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.)
Withdrawn
Application number
GB201302139A
Other versions
GB201302139D0 (en
Inventor
Xavier Fasce
Guy Metral
David Dautricourt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to GB201302139A priority Critical patent/GB2510572A/en
Publication of GB201302139D0 publication Critical patent/GB201302139D0/en
Publication of GB2510572A publication Critical patent/GB2510572A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6464—Means for preventing cross-talk by adding capacitive elements
    • H01R13/6466—Means for preventing cross-talk by adding capacitive elements on substrates, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6464—Means for preventing cross-talk by adding capacitive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6625—Structural association with built-in electrical component with built-in single component with capacitive component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames
    • H04Q1/146—Distribution frames with line protection means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits

Abstract

A cross-talk compensation plug 1 for a telecommunications terminal module for high transmission rates comprises a housing 2, contact elements 8 and a coupling element. The housing 2 accommodates elements of the cross-talk compensation plug 1 and provides an interface 3 for establishing mechanical connection with the terminal module. The contact elements 8 establish electrical connection with contacts of the terminal module. The coupling element electrically couples at least two contacts 8 with each other to reduce cross-talk. The coupling element may be an electronic component (e.g. capacitor) or a combination of copper tracks on a printed circuit board 9. The plug 1 may be a single pair plug (as in figure 1) or a double pair plug (as in figure 2). The plug 1 may also comprise an overvoltage protection element (e.g. gas discharge tube 11), an overcurrent protection element, a display and/or a test module.

Description

I
Cross-talk Compensation Module The invention relates to a cross-talk compensation module according to claim 1.
The invention further relates to a telecommunications module with a cross-talk compensation module according to claim 10.
In the field of telecommunications, numerous customers or subscribers are connected with the switch of a telecommunications company via telecommunications lines or wires. The switch is also called an exchange.
Between the subscriber and the switch, sections of telecommunications lines are connected with telecommunications modules. The telecommunications modules establish an electrical connection between a wire which is attached to the telecommunications module at a first side, and another wire which is attached to the telecommunications module at a second side. Plural telecommunications modules can be put together at a distribution point, such as a main distribution frame, an intermediate distribution frame, an outside cabinet or a distribution point located, for example, in an office building or on a particular floor of an office building. To allow flexible wiring, some telecommunications lines are connected with first telecommunications modules in a manner to constitute a permanent connection. Flexibility is realized by so-called jumpers, which flexibly connect contacts of the first telecommunications module with contacts of a second telecommunications module. These jumpers can be changed when a person moves e.g. within an office building to provide a different telephone (i.e. a different telephone line) with a certain telephone number, which the relocated person intends to keep.
Recently, ADSL-technology has spread widely in the field of telecommunications.
This technology allows at least two different signals to be transmitted on a single line. This is achieved by transmitting the different signals at different frequencies along the same line. The signals are combined at a particular point in the telecommunications line and split at another point. In particular, at the subscriber side, voice and data signals, which are separate, are combined and sent to a central office of the telecommunications company via the same line. In the central office the combined signal is split. For the transmission of voice and data signals to the subscriber, separate voice and data signals are combined at the central office, sent to the subscriber and split at the subscriber side. After splitting the signal, the so-called POTS (plain old telephone service) signal can be used to transmit voice signals. The remaining part of the split signal can be used to transmit data. So-called splitters, which are used to split or combine the signal, can generally be arranged at any distribution point.
The transmission rates of such telecommunication modules are rising all the time.
Due to this tact, there is the risk ot cross-talk occurring within the telecommunications module. The reduction of cross-talk within one telecommunications module has been discussed in the prior art.
EP 637 097 discloses a telecommunications module with a housing and contacts for making mechanical and electrical connection to a telecommunications wire.
The contacts of this telecommunications module are shaped such that they provide a base comprising a IDC section and a contact finger extending from the base. To reduce cross-talk the width of the contact finger is as much reduced as possible.
EP 1 255 322 discloses a telecommunications module with a housing and contacts for making mechanical and electrical connection to a telecommunications wire.
The module further comprises a printed circuit board which utilizes the positional relationship of a plurality of conducts in communication with telecommunications a cables to form a capacitance, such that cross-talk effects are reduced. The printed circuit board is integrated into the housing of the telecommunications module.
US 2010/0317221 Al discloses telecommunications module with a housing and contacts for making mechanical and electrical connection to telecommunication wires. To reduce cross-talk that might occur between the contacts in the telecommunications module, additional coupling pins are arranged in the housing, such that they generate a coupling effect between certain contacts within the housing.
The problem solved by the invention is to reduce the crosstalk generated in a telecommunications terminal module by maintaining the performance of the terminal module. Another object of the invention is to improve the performance of the terminal module and reduce the crosstalk generated. Both problems should be solved without chaning the terminal module itself.
The present invention provides a cross-talk compensation module according to claim 1. According to the invention the cross-talk compensation module is integrated into a plug for a telecommunications terminal module for high transmission rates. The plug according to the invention comprises: -a housing for accommodating elements of the cross-talk compensation plug, wherein the housing provides an interface for establishing a mechanical connection with the telecommunications terminal module; -contact elements for establishing an electrical connection with contacts of the telecommunications terminal module; and -a coupling element for electrically couple at least two contacts with each other in order to reduce cross-talk.
Integrating the cross-talk compensation module into a plug for a telecommunications terminal module, wherein the plug is an external component that may be attached and detached from the telecommunications terminal module, provides the advantage, that the design, layout etc. of the telecommunications terminal module itself does not need to be changed, when a transmission rate gets adapted, e.g. increased. The only thing that needs to be changed or optimized is the plug. Adapting a plug is much easier as adapting a telecommunications terminal module, since the terminal module is part of a complete system (rack, wires etc.).
According to the invention, the cross-talk compensation plug comprises a housing for accommodating any elements that are necessary to let the cross-talk compensation plug function. In addition, the housing provides an interface for establishing a mechanical connection with the telecommunications terminal module. The cross-talk compensation module also comprises contact elements for establishing an electrical connection with contacts of the telecommunications terminal module. The interface may provide an opening, through which the contact elements of the plug extend. The interface may also provide a mechanical solution for guiding the plug, when being connected to the telecommunications terminal module as well as a mechanical solution for fixing the cross-talk compensation plug relative or at the telecommunications terminal module. The housing may be made out of electrically non conductive material such as plastic. The use of plastic for such a housing provides the advantage of having the possibility to manufacture the housing of the cross-talk compensation plug by injection molding, which is a comparatively cost and time effective way of producing parts.
Finally the cross-talk compensation plug for a telecommunications terminal module for high transmission rates provides coupling elements for electrically couple at least two contact elements with each other in order to reduce cross-talk. Coupling is a well known method for reducing cross-talk. Integrating coupling elements into a plug for a telecommunications terminal module is the concept of the invention and provides the above mentioned advantage of being able to keep the terminal module as it is and adapt the coupling in the plug such that the needed cross-talk reduction is achieved.
According to one embodiment of the invention, the coupling element may be an electronic component such as for example a capacitor.
According to another embodiment of the invention, the coupling element may comprise at least two electrically conductive elements.
It is possible that the cross-talk compensation plug is designed as a single pair plug, which means, that the contact elements of the plug are arranged such and that the housing with its interface is shaped such to mechanically electrically contact two contact elements of one pair of the telecommunications terminal module. Such a single pair plug may be designed such that it electronically interacts with a second single pair plug to reduce crosstalk that is generated in two pairs of contact elements.
It is also possible that the cross-talk compensation plug is designed as a double pair plug, which means, that the contact elements of the plug are arranged such and that the housing with its interface is shaped such to mechanically and electrically contact two contact elements of two pairs of the telecommunications terminal module. The double pair plug may be designed such that the coupling between contacts of two pairs is arranged within this one double pair plug.
The cross-talk compensation module according to the invention may comprise a printed circuit board. The printed circuit board may serve any possible function such as for example: overvoltage protection, overcurrent protection, splitter, or other functions like test functions, display functions.The printed circuit board may be arranged in the housing of the cross-talk compensation plug. The coupling elements and/or the electrically conductive elements mentioned above may be integrated onto the printed circuit board. It is also possible that the coupling elements and/or the electrically conductive elements are arranged separately within the housing of the plug.
According to another embodiment of the invention, the cross-talk compensation plug may comprise an overvoltage protection element. This embodiment has the advantage, that the plug serves two functions: overvoltage protection and cross-talk reduction and therewith provides a space saving solution of the invention. The overvoltage protection element may be a gas discharge tube, or any other known element being able provide an overvoltage protection, such as for example a solid component arrestor.
It is also possible to integrate other functional elements into the cross-talk compensation module, such as for example overvoltage protection, overcurrent protection, splitter, or other functions like test functions, display functions.
According to another aspect the invention provides a telecommunications terminal module for high transmission rates with a cross-talk compensation plug as described above, wherein the terminal module comprises a housing and contacts for connection telecommunication wires therewith.
The invention will now be described in more detail with reference to the following Figures exemplifying particular embodiments of the invention: Fig. 1 a cross-sectional view of cross-talk compensation plug according to one embodiment of the invention; Fig. 2 a three-dimensional view of a cross-talk compensation plug according to another embodiment of the invention without a housing; and Fig. 3 a schematic view of a part of a telecommunications terminal module with two cross-talk compensation plugs shown in Fig. 1.
Herein below various embodiments of the present invention are described and shown in the drawings wherein like elements are provided with the same reference numbers.
In Fig. 1 is shown a cross-sectional view of one embodiment of a cross-talk compensation plug according to the invention. The embodiment shown in Fig.1 is a single pair plug 1 with a housing 2. A single pair plug is a plug which makes electrical connection to contacts of one pair. The housing 2 is generally rectangular or squared shape in the shown cross section. On one side it comprises a interface side 3 and on the other side it comprises a handle 10 to remove the plug. The interface side 3 provides a guiding pin 4 which extends outside of the housing and serves as a means for guiding the plug, when it is brought in connection with the telecommunications termination module (not shown in Fig. 1). The guiding pin 4 comprises a recess 5, which interacts with a protrusion or the like in the telecommunications termination module and functions as a means for fixing the cross-talk compensation plug 1 to the telecommunications termination module. The interface side further provides an opening 6 which is surrounded by two parallel pins 7. The pins 7 also serve as guiding means for the plug, when it is brought in connection with the telecommunications termination module.
The cross-talk compensation plug 1 further comprises at least two elongated contact elements 8 extending out of the opening 6 between the two parallel pins 7 for making electrical connection with contact elements of a telecommunications terminal module (not shown in Fig. 1). The contact elements 8 of the plug 1 are arranged in close position to the guiding pin 4, each contact element 8 is located on one side of the guiding pin 4. The opposite side of the elongated contact elements 8 of the plug 1 are mechanically and electrically connected with a printed circuit board 9 which is arranged inside the housing 2 of the plug 1. On top of the PCB is arranged a spacer 14 which has no additional functionality.
The plug further comprises a spring like element 12 which helps to mechanically connect the plug to the telecommunications terminal module.
The printed circuit board 9 extends through the entire housing 2 of the plug 1.
Besides the contact elements 8 a gas discharge tube 11 is mechanically and electrically connected to the printed circuit board 9. The layout of the printed circuit board 9 is such, that the gas discharge tube 11 is electrically connected to the contact elements 8 and therewith provides an overvoltage protection to the pair of contacts of the telecommunications module, the contact elements 8 of the cross-talk compensation plug 1 are connected to.
Besides the functional element of the gas discharge tube 11, the cross-talk compensation plug provides a coupling cage 13. The coupling cage 13 is a u-shaped bend metal part, which is designed and dimensioned such to make electrical connection between a second coupling cage in a parallel plug (not shown).
In Fig. 2 a three-dimensional view of another embodiment of a cross-talk compensation plug 1 without its housing is shown. The plug is a double pair plug 1, which means, that it may be connected to two pairs of contacts in a telecommunications terminal module (not shown in Fig. 2). The plug 1 comprises a printed circuit board 9, which is provided with for elongated contact elements 8.
One side of the elongated contact elements 8 extend out of the not shown housing as can be seen in the embodiment shown in Fig. 1. The opposite side is electrically and mechanically connected to the printed circuit board. It comprises a spring like element 12 like the embodiment shown in Fig. 1.
The printed circuit board 9 provides two gas discharge tubes 11, which function as over voltage protection modules for each of the pairs, the elongated contact elements 8 of the plug 1 are connected to. In addition to the over voltage protection modules the printed circuit board 9 provides a coupling element, which is schematically indicated by the element 12. The coupling element is arranged may be a discrete element like for example a capacitor or it may be integrated into the PCB.
The plug according to the invention may also provide a combination of the plugs shown in Fig. 1 and Fig. 2, which means they may also be designed as a single pair plug and comprise a capacitor or electronic element integrated on the PCB as shown in Fig. 2 or they may be designed as a double pair plug with a coupling element 13 as shown in Fig. 1.
Fig. 3 is a schematic view of a part of a telecommunications terminal module 15 with two single pair cross-talk compensation plugs shown in Fig. 1. The telecommunications terminal module 15 comprises two pair of contacts 16 and 17.
Within each pair 16 and 17 the upper contact is electrically connected with the coupling cage 13 of the plug. The coupling cages 13 are arranged such that they electrically interfere with each other to generate a compensation effect to reduce cross-talk that is generated between the two pairs of contacts.

Claims (9)

  1. CLAIMS1. Cross-talk compensation plug for a telecommunications terminal module for high transmission rates comprising -a housing for accommodating elements of the cross-talk compensation plug, wherein the housing provides an interface for establishing a mechanical connection with the telecommunications terminal module; -contact elements for establishing an electrical connection with contacts of the telecommunications terminal module; and -a coupling element for electrically couple at least one contacts with each other in order to reduce cross-talk.
  2. 2. Plug according to claim 1, wherein the coupling element is an electronic component or combination of copper tracks on the pcb.
  3. 3. Plug according to claim 1, wherein the coupling element comprises at least one electrically conductive elements.
    Interaction between two plugs!!!!
  4. 4. Plug according to any of the preceding claims, wherein the plug is a single pair plug.
  5. 5. Plug according to any of the claims 1 to 3, wherein the plug is double pair plug.
  6. 6. Plug according to any of the preceding claims, wherein the plug comprises a printed circuit board.
  7. 7. Plug according to any of the preceding claims, wherein the plug comprises an overvoltage protection element, overcurrent protection element, a splitter, a display and/or a test module
  8. 8. Plug according to claim 7, wherein the overvoltage protection element is a gas discharge tube.
  9. 9. A telecommunications terminal module for high transmission rates with a cross-talk compensation plug according to any of the preceding claims, wherein the terminal module comprises: -a housing and -contacts for connecting telecommunications wires therewith.
GB201302139A 2013-02-07 2013-02-07 Plug with cross-talk compensation Withdrawn GB2510572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201302139A GB2510572A (en) 2013-02-07 2013-02-07 Plug with cross-talk compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201302139A GB2510572A (en) 2013-02-07 2013-02-07 Plug with cross-talk compensation

Publications (2)

Publication Number Publication Date
GB201302139D0 GB201302139D0 (en) 2013-03-20
GB2510572A true GB2510572A (en) 2014-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB201302139A Withdrawn GB2510572A (en) 2013-02-07 2013-02-07 Plug with cross-talk compensation

Country Status (1)

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GB (1) GB2510572A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331873A (en) * 1997-11-26 1999-06-02 Whitaker Corp Modular plug having compensating insert
EP0826253B1 (en) * 1995-05-16 1999-07-07 The Whitaker Corporation Modular plug for high speed data transmission
EP0971444A1 (en) * 1998-06-30 2000-01-12 The Whitaker Corporation Modular plug having a circuit board
AU762700B2 (en) * 1999-06-02 2003-07-03 Quante Ag Protection connector for a telecommunications equipment item
EP1455543A1 (en) * 2003-03-03 2004-09-08 3M Innovative Properties Company Assembly of a telecommunications module and at least one protection plug
WO2006081423A1 (en) * 2005-01-28 2006-08-03 Commscope Inc. Of North Carolina Controlled mode conversion connector for reduced alien crosstalk
WO2007084277A1 (en) * 2006-01-23 2007-07-26 Commscope, Inc. Of North Carolina Communications connectors with parasitic and/or inductive coupling elements for reducing crosstalk and related methods
WO2008106377A1 (en) * 2007-02-28 2008-09-04 Adc Telecommunications, Inc. Overvoltage protection plug
WO2010144694A1 (en) * 2009-06-11 2010-12-16 Commscope Inc. Of North Carolina Communications plugs having capacitors that inject offending crosstalk after a plug-jack mating point and related connectors and methods
EP2315316A2 (en) * 2009-10-26 2011-04-27 Leviton Manufacturing Co., Inc. High Speed Data Communications Connector with Reduced Modal Conversion

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826253B1 (en) * 1995-05-16 1999-07-07 The Whitaker Corporation Modular plug for high speed data transmission
GB2331873A (en) * 1997-11-26 1999-06-02 Whitaker Corp Modular plug having compensating insert
EP0971444A1 (en) * 1998-06-30 2000-01-12 The Whitaker Corporation Modular plug having a circuit board
AU762700B2 (en) * 1999-06-02 2003-07-03 Quante Ag Protection connector for a telecommunications equipment item
EP1455543A1 (en) * 2003-03-03 2004-09-08 3M Innovative Properties Company Assembly of a telecommunications module and at least one protection plug
WO2006081423A1 (en) * 2005-01-28 2006-08-03 Commscope Inc. Of North Carolina Controlled mode conversion connector for reduced alien crosstalk
WO2007084277A1 (en) * 2006-01-23 2007-07-26 Commscope, Inc. Of North Carolina Communications connectors with parasitic and/or inductive coupling elements for reducing crosstalk and related methods
WO2008106377A1 (en) * 2007-02-28 2008-09-04 Adc Telecommunications, Inc. Overvoltage protection plug
WO2010144694A1 (en) * 2009-06-11 2010-12-16 Commscope Inc. Of North Carolina Communications plugs having capacitors that inject offending crosstalk after a plug-jack mating point and related connectors and methods
EP2315316A2 (en) * 2009-10-26 2011-04-27 Leviton Manufacturing Co., Inc. High Speed Data Communications Connector with Reduced Modal Conversion

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Publication number Publication date
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