Communications patching devices having capacitor-based multi-stage near-end alien crosstalk compensation circuits between adjacent connector ports

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.