Communications patching and connector systems having multi-stage near-end alien crosstalk compensation circuits
First Claim
1. A communications connector system, comprising:
- a first communications connector that includes a first output terminal and a second output terminal, the first and second output terminals being connected to respective first and second conductive paths through the first communications connector, the first and second conductive paths forming a first differential pair of conductive paths through the first communications connector;
a second communications connector that includes a third output terminal and a fourth output terminal, the third and fourth output terminals being connected to respective third and fourth conductive paths through the second communications connector, the third and fourth conductive paths forming a second differential pair of conductive paths through the second communications connector, the second communications connector being immediately adjacent to the first communications connector and arranged such that a first signal coupling level from the first output terminal to the third output terminal in response to a first communication signal that is transmitted through the first differential pair of conductive paths exceeds a second signal coupling level from the first output terminal to the fourth output terminal in response to the first communication signal; and
a multi-stage near-end alien crosstalk compensation circuit having at least a first stage and a second stage that is configured to compensate for near-end alien crosstalk between the first and second differential pairs of conductive paths,wherein the polarity of the near-end alien crosstalk introduced in the first stage is generally opposite the polarity of the near-end alien crosstalk introduced in the second stage and is also generally opposite the polarity of the near-end alien crosstalk introduced in the first through fourth output terminals.
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Accused Products
Abstract
Communications patching devices include first and second connectors mounted immediately adjacent to each other. The first connector includes a first output terminal and a second output terminal that are connected to respective first and second conductive paths, and the second connector includes a third output terminal and a fourth output terminal that are connected to respective third and fourth conductive paths. The first and second conductive paths form a first differential pair of conductive paths and the first and second output terminals form a first differential pair of output terminals. The third and fourth conductive paths form a second differential pair of conductive paths, and the third and fourth output terminals form a second differential pair of output terminals. The output terminals are arranged such that a first signal coupling level from the first output terminal to the third output terminal in response to a communication signal that is transmitted through the first differential pair of output terminals exceeds a second signal coupling level from the first output terminal to the fourth output terminal in response to the communication signal. A first capacitor is provided between the first conductive path and the fourth conductive path and a second capacitor is provided between at least one of the first conductive path and the third conductive path or between the second conductive path and the fourth conductive path.
34 Citations
16 Claims
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1. A communications connector system, comprising:
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a first communications connector that includes a first output terminal and a second output terminal, the first and second output terminals being connected to respective first and second conductive paths through the first communications connector, the first and second conductive paths forming a first differential pair of conductive paths through the first communications connector; a second communications connector that includes a third output terminal and a fourth output terminal, the third and fourth output terminals being connected to respective third and fourth conductive paths through the second communications connector, the third and fourth conductive paths forming a second differential pair of conductive paths through the second communications connector, the second communications connector being immediately adjacent to the first communications connector and arranged such that a first signal coupling level from the first output terminal to the third output terminal in response to a first communication signal that is transmitted through the first differential pair of conductive paths exceeds a second signal coupling level from the first output terminal to the fourth output terminal in response to the first communication signal; and a multi-stage near-end alien crosstalk compensation circuit having at least a first stage and a second stage that is configured to compensate for near-end alien crosstalk between the first and second differential pairs of conductive paths, wherein the polarity of the near-end alien crosstalk introduced in the first stage is generally opposite the polarity of the near-end alien crosstalk introduced in the second stage and is also generally opposite the polarity of the near-end alien crosstalk introduced in the first through fourth output terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification