UAM-4 – Band-Pass Unit

Line-Matching Unit for PLC systems over HV lines

Band-pass filter configuration. Good operation in underground cables.

Key features 

  • Designed according to IEC 60481 standard (composite loss ≤ 2 dB and return loss ≥ 12 dB in the selected bandwidth).
  • Nominal power (P.E.P): 400 W for two tones.
  • Distortion and intermodulation: 80 dB below the level corresponding to the nominal P.E.P.
  • Band-pass filter configuration.
  • Power frequency insulation: >5 kVrms.
  • Frequency range: 40÷500 kHz.
  • Coupling capacitor: 2 to 10 nF.
  • Equipment-side impedance: 75, 125, 150 and 250 Ω. Others on request.
  • Line-side impedance: 25 to 750 Ω.
  • Protection elements: Line side: drain coil, earthing switch, air-gap surge arrester and an optional solid-state surge arrester. Equipment side: gas surge arrester.
  • Box and cover: Die-cast aluminium with outdoor polyester powder paint, metallic grey (BJC Ref. B-8515).

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