How does the NRZ-L differ from NRZ-1?

Answer 1

NRZ-L (Non-Return-to-Zero Level) and NRZ-1 (Non-Return-to-Zero Inverted) are both encoding schemes used in digital communication. NRZ-L represents binary data by using two distinct voltage levels, where one level signifies a binary '1' and the other a binary '0', without returning to a zero level between bits. In contrast, NRZ-1 uses a transition to indicate a binary '1' and no transition for a binary '0', effectively inverting the signal on each '1'. This means NRZ-1 can provide better synchronization and error detection capabilities compared to NRZ-L.