| 摘要 |
A circuit board (1) for use in a connector between cables of a data transmission system has at least one array of input terminals (T1-T8) for incoming signals, at least one array of output terminals (t1-t8) for outgoing signals, and a respective conductive track (5) connecting each input terminal to a respective output terminal. Closed loops (6, 7, 8) of conductive material are connected to at least some of the terminals or conductive tracks, the loops being positioned on the circuit board to reduce crosstalk from the levels which would exist within the connector in the absence of such closed loops. The loops associated with one terminal will be positioned on the board opposite loops associated with another terminal or terminals to produce coupling therebetween. The invention is particularly applicable to RJ45 plug and jack systems.
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