Communications jacks having low crosstalk and/or solder-less wire connection assemblies
First Claim
Patent Images
1. An RJ-45 communications jack, comprising:
- a housing having a plug aperture;
first through eighth jackwire contacts, each of which has a plug contact region, the plug contact regions of the first through eighth jackwire contacts being aligned in numerical order across the plug aperture;
a printed circuit board;
first through eighth output contacts that intercept the printed circuit board at a first through eighth intercepts respectively;
wherein the printed circuit board has a front edge that extends toward an opening in the plug aperture, a rear edge opposite the front edge, and first and second side edges that extend between the front and rear edges, the printed circuit board including first and second conductive paths that are arranged as a second differential pair of conductive paths that electrically connect the first and second jackwire contacts to the respective first and second output contacts, seventh and eighth conductive paths that are arranged as a fourth differential pair of conductive paths that electrically connect the seventh and eighth jackwire contacts to the respective seventh and eighth output contacts, fourth and fifth conductive paths that are arranged as a first differential pair of conductive paths that electrically connect the fourth and fifth jackwire contacts to the respective fourth and fifth output contacts, and third and six conductive paths that are arranged as a third differential pair of conductive paths that electrically connect the third and sixth jackwire contacts to the respective third and sixth output contacts;
wherein the second differential pair of output contacts are positioned along the first side edge and the fourth differential pair of output contacts are positioned along the second side edge, generally opposite the second differential pair of output contacts,wherein the first differential pair of output contacts are positioned forward of the second and fourth differential pairs of output contacts, and the third differential pair of output contacts are positioned generally opposite the first differential pair of output contacts forward of the second and fourth differential pairs of output contacts, andwherein the first differential pair of output contacts is closer to the third differential pair of output contacts than the second differential pair of output contacts is to the fourth differential pair of output contacts.
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Abstract
Communications jacks include a housing having a plug aperture, a plurality of input contacts, a plurality of output contacts, and a flexible printed circuit board that includes a plurality of conductive pads and a plurality of conductive paths that each electrically connect a respective one of the input contacts to a respective one of the conductive pads. The conductive paths are arranged as a plurality of differential pairs of conductive paths, and each output contact includes a spring-biased base and an insulation displacement portion.
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Citations
21 Claims
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1. An RJ-45 communications jack, comprising:
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a housing having a plug aperture; first through eighth jackwire contacts, each of which has a plug contact region, the plug contact regions of the first through eighth jackwire contacts being aligned in numerical order across the plug aperture; a printed circuit board; first through eighth output contacts that intercept the printed circuit board at a first through eighth intercepts respectively; wherein the printed circuit board has a front edge that extends toward an opening in the plug aperture, a rear edge opposite the front edge, and first and second side edges that extend between the front and rear edges, the printed circuit board including first and second conductive paths that are arranged as a second differential pair of conductive paths that electrically connect the first and second jackwire contacts to the respective first and second output contacts, seventh and eighth conductive paths that are arranged as a fourth differential pair of conductive paths that electrically connect the seventh and eighth jackwire contacts to the respective seventh and eighth output contacts, fourth and fifth conductive paths that are arranged as a first differential pair of conductive paths that electrically connect the fourth and fifth jackwire contacts to the respective fourth and fifth output contacts, and third and six conductive paths that are arranged as a third differential pair of conductive paths that electrically connect the third and sixth jackwire contacts to the respective third and sixth output contacts; wherein the second differential pair of output contacts are positioned along the first side edge and the fourth differential pair of output contacts are positioned along the second side edge, generally opposite the second differential pair of output contacts, wherein the first differential pair of output contacts are positioned forward of the second and fourth differential pairs of output contacts, and the third differential pair of output contacts are positioned generally opposite the first differential pair of output contacts forward of the second and fourth differential pairs of output contacts, and wherein the first differential pair of output contacts is closer to the third differential pair of output contacts than the second differential pair of output contacts is to the fourth differential pair of output contacts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21)
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16. A communications jack, comprising:
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a plurality of input contacts; a plurality of output contacts, the output contacts being arranged as a plurality of differential pairs of output contacts; a flexible printed circuit board that includes a plurality of conductive paths that each electrically connect a respective one of the input contacts to a respective one of the output contacts, the conductive paths being arranged as a plurality of differential pairs of conductive paths; wherein the flexible printed circuit board includes a fold of at least about 30 degrees, and wherein two of the differential pairs of output contacts are on a first side of the fold and two other of the differential pairs of output contacts are on the second side of the fold. - View Dependent Claims (17, 18)
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19. An RJ-45 communications jack, comprising:
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a housing having a plug aperture; first through eighth jackwire contacts, each of which has a plug contact region, the plug contact regions of the first through eighth jackwire contacts being aligned in numerical order across the plug aperture; first through eighth output contacts; a printed circuit board that has a front edge that extends toward an opening in the plug aperture, a rear edge opposite the front edge, and first and second side edges that extend between the front and rear edges, the printed circuit board including first and second conductive paths that are arranged as a second differential pair of conductive paths that electrically connect the first and second jackwire contacts to the respective first and second output contacts, seventh and eighth conductive paths that are arranged as a fourth differential pair of conductive paths that electrically connect the seventh and eighth jackwire contacts to the respective seventh and eighth output contacts, fourth and fifth conductive paths that are arranged as a first differential pair of conductive paths that electrically connect the fourth and fifth jackwire contacts to the respective fourth and fifth output contacts, and third and six conductive paths that are arranged as a third differential pair of conductive paths that electrically connect the third and sixth jackwire contacts to the respective third and sixth output contacts; wherein the second differential pair of output contacts are positioned along the first side edge and the fourth differential pair of output contacts are positioned along the second side edge, generally opposite the second differential pair of output contacts, wherein the first differential pair of output contacts are positioned forward of the second and fourth differential pairs of output contacts, and wherein the first and third differential pairs of output contacts are arranged so that the first differential pair of output contacts imparts substantially no crosstalk on the third differential pair of output contacts.
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Specification