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A CAN bus at 500 kbit/s carrying frames of about 110 bits can pass at most about

  • A.5500 frames per second
  • B.4500 frames per second
  • C.500 frames per second
  • D.45 000 frames per second

Answer: B

Five hundred thousand bits a second divided by a hundred and ten is roughly 4500. Bit stuffing makes the frame length depend on the data, so a worst-case figure some ten per cent lower is what a loading calculation should use.

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