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bipolar violation (BPV)

In various channel codings

, several consecutive zeros are interrupted by a bit combination. In this context, one speaks of code violations or code violations.

B8ZS coding

B8ZS coding

For example, with B3ZS, B6ZS and B8ZS

. The reason for this lies in the generation of the synchronous signal. These forcibly inserted bit combinations are called Bipolar Violation (BPV), they consist of two consecutive levels, one positive (+1) and one negative (-1), or vice versa. Which level state is used first depends on the level used for the last 1. If a positive level was used for the last 1, then the bipolar violation also starts with a positive level. In the other case with a negative level.

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Englisch: bipolar violation - BPV
Updated at: 24.04.2009
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