10 Gigabit Ethernet Definitions

  • A

    attenuation

    Attenuation is a general term that refers to any reduction in the strength of a signal.

  • attenuation-to-crosstalk ratio (ACR) or headroom

    Attenuation-to-crosstalk ratio (ACR), also called headroom, is the difference, expressed as a figure in decibels (dB), between the signal attenuation produced by a wire or cable transmission medium and the near-end crosstalk (NEXT).

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