Show nonreturn to zero encoding, Computer Networking

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Q. Show Nonreturn to Zero encoding?

- Value of signal is for all time positive or negative

- NRZ-L

Signal level depends on bit represented; positive typically means 0 negative usually means 1
Difficulty synchronization of long streams of 0s or 1s

- NRZ-I (NRZ-Invert)

Inversion of a voltage represents a 1 bit
0 bit represented by no change
Permits for synchronization

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