ADSL filter MB-4090

Maxxtro Ltd; Rishon LeZion

  • Année
  • 2000 ??
  • Catégorie
  • Téléphonie, filaire et mobile
  • Radiomuseum.org ID
  • 305317

Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

 Spécifications techniques

  • Gammes d'ondes
  • Bandes en notes
  • Tension / type courant
  • Pas d'alimentation nécessaire
  • Haut-parleur
  • - - Pas de sortie basse fréquence
  • Matière
  • Plastique moderne (pas de bakélite, ni de catalin)
  • De Radiomuseum.org
  • Modèle: ADSL filter MB-4090 - Maxxtro Ltd; Rishon LeZion
  • Forme
  • Portable, appareil de poche. Taille < 20cm
  • Dimensions (LHP)
  • 51 x 32 x 50 mm / 2 x 1.3 x 2 inch
  • Remarques
  • Before analogue telephone services were replaced by IP telephony, many domestic subscribers obtained internet access via ADSL modems operating on frequencies well above the voice band of 300 - 3400 Hz. For an analogue home installation, ADSL devices can be connected directly to each telephone socket provided a low-pass filter is inserted between each telephone and the telephone socket to avoid mutual interference with the high-frequency ADSL signals (which are typically above 25 kHz).
            
    The MB-4090 adapter with integrated filter is designed to plug directly into a TT83 telephone socket, allowing analogue telephones and ADSL devices to be operated from the socket simultaneously. In modern installations, TT83 sockets are replaced by RJ45 ones.

    Wall socket connector: TT83.
    Telephone socket: 1 x A6.
    ADSL jack: 1 x RJ11.

    Passive design. (No transistors)
    6 toroidal ferrite-cored inductors, 3 in series in each line. The three different chokes ensure that the impedance remains high over a broad band of frequencies, in spite of self resonances in any one of them.
    1 22 nF bypass capacitor.
    2 22 ohm series resistors.
    DC continuity to telephone socket for local loop current.
    Continuity for low-frequency ring signal.
    Internal 2A 250v fuse.

    Made in Taiwan.

  • Poids net
  • 0.330 kg / 0 lb 11.6 oz (0.727 lb)
  • Auteur
  • Modèle crée par Bruce Taylor. Voir les propositions de modification pour les contributeurs supplémentaires.

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Le modèle ADSL filter fait partie des collections des membres suivants.

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