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What is a frame in a time division multiplexed system?

  • A.The total number of channels the equipment is able to carry
  • B.One sample from every channel in turn
  • C.The interval between two synchronising pulses of the same polarity
  • D.A group of pulses belonging to a single channel of the multiplex

Answer: B

A frame is one complete cycle through every channel, so it contains one sample from each and repeats at the sampling rate. The synchronising interval usually coincides with the frame but does not define it. A group belonging to one channel is not a frame. And the channel capacity is a specification rather than a time interval. Frame structure is what turns a pulse train into an addressable set of channels.

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