Non-return-to-zero
the New Year festival often associated with Zoroastrianism and Parsiism. The festival is celebrated in many countries, including Iran, Iraq, India, ... [5 related articles]
No Return to Zero. A digital code in which the signal level is low for 0 and high for 1 but does not return to zero between successive bits. Important in fibre optic data transmission because the 0 level at the receiver end of a link can be substantially higher than the dark current level.
Non-return to zero. Modulation scheme in which a phase deviation is held for a period of time in order to represent a data symbol. See Chapter 10. Not Return to Zero
nonreturn to zero. NRZ signals maintain constant voltage levels with no signal transitions (no return to a zero-voltage level) during a bit interval.