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Receive attenuation system for trainline communication networks

  • US 9,270,335 B2
  • Filed: 08/23/2013
  • Issued: 02/23/2016
  • Est. Priority Date: 08/23/2013
  • Status: Active Grant
First Claim
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1. A receive attenuation system for a trainline communication system utilizing an intra-consist electrical cable, the system comprising:

  • an analog front end amplifier;

    a trainline communication processor configured to generate a receive gain control signal configured to control receive gain of the analog front end amplifier;

    an adjustable attenuator capable of being coupled to the intra-consist electrical cable and configured to variably attenuate signals received from the intra-consist electrical cable before transmitting the signals to the analog front end amplifier; and

    ,a gain controller coupled to the adjustable attenuator and configured to;

    detect the receive gain control signal generated by the trainline communication processor,determine a supplemental attenuation control value based on the detected receive gain control signal, andcontrol the adjustable attenuator according to the supplemental attenuation control signal.

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