ADSL filter MB-4090

Maxxtro Ltd; Rishon LeZion

  • Jahr
  • 2000 ??
  • Kategorie
  • Telefonie, drahtgebunden und mobil
  • Radiomuseum.org ID
  • 305317

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 Technische Daten

  • Wellenbereiche
  • Wellen in den Bemerkungen.
  • Betriebsart / Volt
  • Keine Stromversorgung
  • Lautsprecher
  • - - Kein Ausgang für Schallwiedergabe.
  • Material
  • Plastikgehäuse (nicht Bakelit), Thermoplast
  • von Radiomuseum.org
  • Modell: ADSL filter MB-4090 - Maxxtro Ltd; Rishon LeZion
  • Form
  • Kleines Reisegerät oder «Taschengerät» < 20 cm.
  • Abmessungen (BHT)
  • 51 x 32 x 50 mm / 2 x 1.3 x 2 inch
  • Bemerkung
  • 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.

  • Nettogewicht
  • 0.330 kg / 0 lb 11.6 oz (0.727 lb)
  • Autor
  • Modellseite von Bruce Taylor angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.

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