Telecommunications device

A telecommunication jack comprising:

• a housing defining a port for receiving a plug;
• a plurality of contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;
• a plurality of wire termination contacts for terminating wires to the jack, the wire termination contacts being electrically connected to the contact springs;
• a circuit board to which at least the contact springs are mounted, the circuit board including:
• a first conductive layer, a second conductive layer and a third conductive layer, the first conductive layer being adjacent a major side of the circuit board;
• a first dielectric layer that separates the first conductive layer and the second conductive layer, the first dielectric layer having a first thickness which provides a spacing between the first conductive layer and the second conductive layer that is less than 0.01 inches;
• a second dielectric layer that separates the second conductive layer and the third conductive layer, the second dielectric layer having a second thickness that is at least 2.5 times thicker than the first thickness;
• and
• the first conductive layer and the second conductive layer each including at least one capacitive plate, wherein the capacitive plate of the first conductive layer opposes the capacitive plate of the second conductive layer to provide a capacitive coupling between the first conductive layer and the second conductive layer to compensate for crosstalk.

A telecommunication jack adapted to receive a plug, the telecommunication jack having a compensation arrangement that compensates for crosstalk generated at the plug, the telecommunication jack comprising:

• a housing defining a port for receiving the plug;
• first, second, third, fourth, fifth, sixth, seventh and eighth consecutively arranged contact springs adapted to make electrical contact with the plug when the plug is inserted into the port of the housing;
• first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts for terminating wires to the jack;
• the telecommunication jack including first, second, third, fourth, fifth, sixth, seventh and eighth electrical pathways that respectively electrically connect the first, second, third, fourth, fifth, sixth, seventh and eighth contact springs to the first, second, third, fourth, fifth, sixth, seventh and eighth wire termination contacts, the first, second, third, fourth, fifth, sixth, seventh and eighth electrical pathways respectively including first, second, third, fourth, fifth, sixth, seventh and eighth tracings of a circuit board, the circuit board including first and second conductive layers separated by a first dielectric layer having a thickness which provides a spacing between the first and second conductive layers that is in the range of 0.001 to 0.005 inches;
• and
• a crosstalk compensation arrangement including a first capacitive coupling between the third and fourth tracings, a second capacitive coupling between the fifth and sixth tracings, a third capacitive coupling between the first and third tracings and a fourth capacitive coupling between the fifth and eighth tracings, wherein the first, second, third and fourth capacitive couplings each include a capacitive plate at the first conductive layer and an opposing capacitive plate at the second conductive layer.