Call Procs cont..

• Handshake format frame:

  • preamble 1 sec of flags,
  • then codes MSB first,
  • DIS,DTC,DCS digital id, transmit cmd, cmd signal
  • CFR,FTT - confirm receive, fail to train
  • EOM,MPS,EOP - end of msg
  • MCF,RTP,RTN - msg confirm
  • DCN-disconnect

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