Bi-Directional Communication Configuration

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Bi-Directional Communication Configuration is an optional feature, where CV 28 configures Bi-Direction Communications when CV29's Bit Three is set.


  • Bit 0: Enable or Disable the Unsolicited Decoder Initiated Transmission
  • Bit 1: Initiated Broadcast Transmission using Asymmetrical DCC Signal
  • Bit 2: Initiated Broadcast Transmission using Signal Controlled Influence Signal
  • Bits 3 to 5: Reserved for future usage
  • Bits 6 and 7: Flag Bits, currently not used but reserved for future use.

If the bit is set to 1, the feature is Enabled.

If the decoder does not support a feature shown, it shall not allow that bit to be set improperly (i.e. it must contain the default value.)