CIAV-1 – Attenuator

Symmetrical and adaptable attenuator for PLC systems over HV lines


For use when impedance mismatching occurs between the PLC terminal and the Line-Matching Unit, as is the case of the underground cables
 and tie lines.

Key features: 


  • Application: allows an additional attenuation to be added in the link.
  • Selectable attenuation: 1 dB, 2 dB and 3 dB.
  • Nominal power (P.E.P): 400 W.
  • Frequency range: 40÷500 kHz.
  • Nominal impedance: 75 Ω, symmetrical.
  • Return loss: ≥ 20 dB in the selected band.
  • Protection elements: gas surge arrester (PLC equipment and LMU side).
  • Box and cover: Die-cast aluminium with outdoor polyester powder paint,
 metallic grey (BJC Ref. B-8515).

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