In a synchronous TDM, there are four inputs and data rate of each input connection is 3 kbps. If 1 bit at a time is multiplexed, what is the duration of each frame?

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ESE Electronics 2016 Paper II: Official Paper
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  1. 0.02 ms
  2. 0.03 ms
  3. 0.33 ms
  4. 0.22 ms

Answer (Detailed Solution Below)

Option 3 : 0.33 ms
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Detailed Solution

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Concept:

In Synchronous TDM, frame duration is equal to bit duration

Calculation:

Data rate = 3 kbps.

Frame duration = 0.33 msec.

Time-division multiplexing (TDM)

  • Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches
  • At each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern
  • It is used when the bit rate of the transmission medium exceeds that of the signal to be transmitted
  • TDM is used for digital signals

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