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LUKA
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Correct definition of transition in line coding

Hello I have following question and it says: enter image description here

I basically cannot understand this solution.

My questions:

  1. isn't it a sequence of 4 0s followed by 4 1s? (answer says 4 1s followed by 4 0s) since retangle below the middle line represent 0 in NRZ?

  2. if you see the middle of those rectangle block, I think there is one transition (from what I learned, definition of transition is something that happens when there exists 0->1 or 1->0) at circled area shown in following picture: enter image description here

But why is answer saying that there are no transitions?

  1. Also above figure looks like polar NRZ but not NRZ. is that really correct drawing?

Thank you very much.

LUKA
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