Non Return to Zero Inverted

Non Return to Zero Inverted

(storage)
(NRZI) A recording method used for 9-track magnetic tapes (200 and 800 BPI) where a zero is represented by a change in the signal and a one by no change.

NRZI is also used extensively in SDLC communications. VTAM has a parameter NRZI=YES|NO.

Compare Phase Encoded, GCR.
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Non Return to Zero Inverted (NRZI) encoding and decoding is also available depending upon the selected mode.