A method and an arrangement in a subscriber line interface...

Details A method and an arrangement in a subscriber line interface... A method and an arrangement in a subscriber line interface...

H - Electricity

04

M

H04M 15/00 (2006.01) H04M 3/00 (2006.01)

Patent

CA 2324471

In a subscriber line interface circuit having an amplifier (16) for generating private metering signals to be transmitted through the subscriber line interface circuit to a subscriber station via a subscriber line (2, 3), the amplitude of the private metering signals is adapted to the length of the subscriber line (2, 3) in that the amplitude is adapted and latched in discrete steps to the DC line voltage once the subscriber station goes off- hook and unlatched when the state of the subscriber line interface circuit changes to stand-by mode.

Soit un circuit d'interface de ligne d'abonné doté d'un amplificateur (16) qui génère des signaux de mesure privés. Ces signaux doivent être transmis par le circuit d'interface de la ligne d'abonné à un poste d'abonné via une ligne d'abonné (2, 3). L'amplitude des signaux de mesure privés est adaptée à la longueur de la ligne d'abonné (2, 3) dans la mesure où cette amplitude est adaptée et verrouillée par opérations discrètes sur la tension de ligne en courant continu dès que le poste de l'abonné est décroché, et déverrouillée lorsque le circuit d'interface de la ligne d'abonné passe en mode d'attente.

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