Communications Jacks with Compensation For Differential to Differential and Differential to Common Mode Crosstalk

A communications jack, comprising:

• a housing having a plug aperture;
• a wiring board;
• a first contact wire and a second contact wire that form a first differential pair of contact wires, the first and second contact wires each comprising a wire segment that includes a fixed end mounted in the wiring board and a free end;
• and
• a third contact wire and a fourth contact wire that form a second differential pair of contact wires, the third and fourth contact wires each comprising a wire segment that includes a fixed end mounted in the wiring board and a free end, and a support finger that branches off of the wire segment between the fixed end and the free end.

A communications jack, comprising:

• a housing having a plug aperture;
• a wiring board;
• a first contact wire and a second contact wire that form a first differential pair of contact wires, the first and second contact wires each having a fixed end portion that is mounted in the wiring board and a free end portion;
• a third contact wire and a fourth contact wire that form a second differential pair of contact wires, the third and fourth contact wires each having a fixed end portion that is mounted in the wiring board, a free end portion, an intermediate segment connecting the fixed end portion and the free end portion and a support finger branching off of the intermediate segment, the support finger including a base end that connects to the intermediate segment and a distal end opposite the base end;
• wherein the support finger and the free end portion of the third contact wire are substantially aligned in a longitudinal direction and are not aligned with the fixed end portion of the third contact wire.

A communications jack, comprising:

• a housing having a plug aperture;
• a first contact wire and a second contact wire that form a first differential pair of contact wires, the first and second contact wires each including a first end, a second end and an intermediate portion connecting the first end and the second end;
• a third contact wire and a fourth contact wire that form a second differential pair of contact wires, wherein at least a portion of the second differential pair of contact wires is sandwiched between the first differential pair of contact wires;
• a first conductive element branching off of the intermediate portion of the first contact wire, wherein the first conductive element crosses over the third contact wire and the fourth contact wire;
• and
• a second conductive element branching off of the intermediate portion of the second contact wire, wherein the second conductive element crosses under the third contact wire and the fourth contact wire.

A communications jack, comprising:

• a housing;
• a wiring board positioned at least partially within the housing;
• a first contact wire, a second contact wire, a third contact wire and a fourth contact wire mounted in the wiring board;
• a first output terminal, a second output terminal, a third output terminal and a fourth output terminal mounted in the wiring board;
• wherein the first contact wire and the second contact wire form a first differential pair of contact wires and the third contact wire and the fourth contact wire form a second differential pair of contact wires;
• wherein at least a portion of the first contact wire is sandwiched in between the second and third contact wires, and at least a portion of the second contact wire is sandwiched in between the first and fourth contact wires;
• wherein the wiring board includes a first conductive path that electrically connects the first contact wire to the first output terminal, a second conductive path that electrically connects the second contact wire to the second output terminal, a third conductive path that electrically connects the third contact wire to the third output terminal, a fourth conductive path that electrically connects the fourth contact wire to the fourth output terminal,
• wherein the third conductive path and the fourth conductive path form a crossover.