Networks: Data Encoding
Differential Manchester encoding
mid-bit transition is ONLY for clocking.
Differential Manchester is both differential and bi-phase.
Note – the coding is the opposite convention from NRZI.
Used in 802.5 (token ring) with twisted pair.
* Modulation rate for Manchester and Differential Manchester is twice the data rate inefficient encoding for long-distance applications.
1 absence of transition at the beginning of the bit interval
0 presence of transition at the beginning of the bit interval