written 2.4 years ago by
binitamayekar
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modified 2.4 years ago
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$$ Binary \ Data \ Sequence - 1111101111$$
Bipolar AMI
- It stands for Bipolar Alternate Mark Inversion (AMI).
- In this type of encoding, BIT – 0 is represented by 0 Voltage line, and BIT – 1 is represented by alternate Positive and Negative Voltages.
Waveform for the Binary Data Sequence 1111101111 using the Bipolar-AMI:
![Bipolar AMI 1111101111](https://i.imgur.com/Jd6Cxae.png)
Bipolar RZ
- Bipolar RZ stands for Bipolar Return to Zero.
- In this type of encoding, transition always occurs in the middle of the bit interval.
- BIT – 0 is represented by a 0 Voltage line.
- BIT – 1 is represented by alternate Positive and Negative Voltages.
- But, transition always occurs in the middle of the bit interval.
- If the transition is at the POSITIVE Voltage Side, then it starts at the POSITIVE side, makes the transition, and returns to the 0 Voltage side. (Z - Shape Pattern)
- If the transition is at the NEGATIVE Voltage Side, then it starts at the NEGATIVE side, makes the transition, and returns to the 0 Voltage side. (Inverted Z - Shape Pattern)
Waveform for the Binary Data Sequence 1111101111 using the Bipolar RZ:
![Bipolar RZ 1111101111](https://i.imgur.com/XWEnY5u.png)
Manchester
- Manchester combines the logic of RZ and NRZ-L encoding techniques.
- It is used by IEEE 802.5
- BIT - 0 represents the transition that starts at the POSITIVE side, makes the transition, and returns to the NEGATIVE side. (Z - Shape Pattern)
- BIT - 1 represents the transition that starts at the NEGATIVE side, makes the transition, and returns to the POSITIVE side. (Inverted Z - Shape Pattern)
Waveform for the Binary Data Sequence 1111101111 using the Manchester:
![Manchester 1111101111](https://i.imgur.com/r0dK01t.png)