Communications connector with crimped contacts

• US 7,357,683 B2
• Filed: 07/13/2006
• Issued: 04/15/2008
• Est. Priority Date: 07/15/2005
• Status: Active Grant

• Current Assignee: Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: Lesniak, Scott M., Caveney, Jack E.
• Primary Examiner(s): NGUYEN, TRUC T
• Application Number:
  US11/457,171
• Publication Number:
  US 20070015417A1
• Time in Patent Office: 642 Days
• Field of Search: 439/941, 439/76.1, 439/676
• US Class Current: 439/894
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H05K 1/0228 Compensation of cross-talk by a mutually correlated lay-out of printed circuit traces, e.g. for compensation of cross-talk in mounted connectors balanced signal pairs H05K1/0245
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence
• CPC Class Codes: H05K 2201/10189 Non-printed connector
• CPC Class Codes: Y10S 439/941 Crosstalk suppression

Abstract

A communications connector with a flexible printed circuit board is provided. The flexible printed circuit board is electronically and mechanically connected to the plug interface contacts of the jack near the plug/jack interface, in order to provide effective crosstalk compensation. The flexible printed circuit board has fingers at one end allowing it to flex as individual plug interface contacts are depressed when a plug is installed into the jack. The flexible printed circuit board, or a flexible portion of a printed circuit board, is provided with elongated extensions for certain conductors to accommodate the connection of six-contact or eight-contact plugs to the connector.

Claims

1. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts, the flexible printed circuit mechanically and electrically connected at a second end to network cable connectors and having circuit traces to compensate for near-end crosstalk (NEXT), the flexible printed circuit having a variable compensation zone that reduces NEXT compensation as a communication frequency increases.

2. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having first through eighth plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts via first through eighth flexible connection extensions of the flexible printed circuit, wherein first and eighth flexible connection extensions of said flexible printed circuit are longer than second through seventh connection extensions.

3. The crosstalk compensation apparatus of claim 2 wherein said first and eighth flexible connection extensions of said flexible printed circuit are respectively connected to first and eighth plug interface contacts with an S-shaped bend.

4. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts by clamping the flexible printed circuit between an end portion and an intermediate portion of each plug interface contact at a clamping area of each plug interface contact.

5. The crosstalk compensation apparatus of claim 4 wherein portions of each plug interface contact adjacent to the clamping area are welded together.

6. The crosstalk compensation apparatus of claim 4 wherein each of said clamping areas comprises at least one irregular surface which contacts gripped portions of the flexible printed circuit.

7. The crosstalk compensation apparatus of claim 4 wherein said plug interface contacts provide a clamping force on said flexible printed circuit at said clamping areas, said clamping force resulting from a separation of said end portion and said intermediate portion of said plug interface contacts which are spring loaded together by the configuration of each contact.

8. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts adjacent to and on the opposite side of the plug/jack interface, the flexible printed circuit mechanically and electrically connected at a second end to network cable connectors and having circuit traces to compensate for near-end crosstalk (NEXT), the flexible printed circuit having a variable compensation zone that reduces NEXT compensation as a communication frequency increases.

9. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having first through eighth plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts adjacent to and on the opposite side of the plug/jack interface via first through eighth flexible connection extensions of the flexible printed circuit, wherein first and eighth flexible connection extensions of said flexible printed circuit are longer than second through seventh connection extensions.

10. The crosstalk compensation apparatus of claim 9 wherein said first and eighth flexible connection extensions of said flexible printed circuit are respectively connected to first and eighth plug interface contacts with an S-shaped bend.

11. A crosstalk compensation apparatus for a modular communication connector comprising a jack and a plug, the jack having plug interface contacts, the apparatus comprising a flexible printed circuit mechanically and electrically connected at a first end to the plug interface contacts adjacent to and on the opposite side of the plug/jack interface by clamping the flexible printed circuit between an end portion and an intermediate portion of each plug interface contact at a clamping area of each plug interface contact.

12. The crosstalk compensation apparatus of claim 11 wherein portions of each plug interface contact adjacent to the clamping area are welded together.

13. The crosstalk compensation apparatus of claim 11 wherein each of said clamping areas comprises at least one irregular surface which contacts gripped portions of the flexible printed circuit.

14. The crosstalk compensation apparatus of claim 11 wherein said plug interface contacts provide a clamping force on said flexible printed circuit at said clamping areas, said clamping force resulting from a separation of said end portion and said intermediate portion of said plug interface contacts which are spring loaded together by the configuration of each contact.