ARRANGEMENT AND METHOD RELATING TO DIGITAL SUBSCRIBE LINES

摘要

The present invention relates to an arrangement (10) for monitoring noise on a twisted pair cable adapted to transfer data comprising DSL signals with a given data symbol rate. It comprises or is adapted to communicate with spectrum detection means (1) adapted to perform and register a number of power spectral density measurements of a background or substantially pure noise signal. It further comprises means adapted to establish if a background, pure noise signal comprises repetitive impulse noise and processing means (3) adapted to calculate the pulse width of the respective impulse noise using an established relationship between the given data symbol rate and the frequency of the respective impulse noise given by the spectral power density measurements.