Method for producing connection of data transmission lines, and plug connector

The method and the plug connector are employed in the transmission of data at high frequencies to reduce propagation delay differences in data transmission lines, where a data transmission line (20) is connected to a plug connector (1) having a conductive structure (6, 26) located between a conductor connection contact (4, 4') and an associated plug transfer contact (8, 8'), where during production, the propagation delay difference between the signals on the two conductors (22, 24) is measured and compensated for by removing conductor sections (10) form the conductive structure (6, 26) for which the shorter propagation delay is measured in order to extend the length of the signal path.