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Explain the difference between NRZ-L and NRZI?

0 votes

October 11th, 2012 15:45
in Data Communication and Computer Networks by arjaa (State University of New York System (NY), Physics)

Explain the difference between NRZ-L and NRZI?

What is the major difference between NRZ-L and NRZI?

8 Answers
0 votes

October 12th, 2012 14:28
janet (The University of Edinburgh, Sociology of groups)
"Non return-to-zero-level (NRZ-L) is a data encoding scheme in which a negative voltage is used to represent binary one and a positive voltage is used to represent binary zero. As with NRZ-L, NRZI maintains a constant voltage pulse for the duration of a bit time. The data themselves are encoded as the presence or absence of a signal transition at the beginning of the bit time. A transition (low to high or high to low) at the beginning of a bit time denotes a binary 1 for that bit time; no transition indicates a binary 0."

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November 9th, 2012 05:42
electraxx (Yale University (CT), General law)
"This cross over occurs on the innovative in the time clock to the provided little bit. This distinguishes NRZI via NRZ-Level. "

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November 9th, 2012 07:02
mcboon (Stanford University (CA), Masters in management)
"Besides, NRZI normally takes the contrary meeting, just as General Sequential Coach (Universal serial bus) signalling, much more Mode a single, where a change occurs while signaling absolutely no, and a stable degree any time signal a one. "

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November 9th, 2012 08:11
hugger (Stanford University (CA), Eletronica)
Low come back to absolutely nothing, inside-out (NRZI) is a method connected with applying any binary signaling into a physical transmission intended for transmittal more than many indication advertising. The two levels NRZI indicate incorporates a cross over at the wall clock border when the little bit currently being familial is often a logical i, as well as doesn't have a transition when the little bit staying transported is often a rational nought.

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November 9th, 2012 09:14
princesspeach (Tufts University (MA), General medicine)
it is helpful to see NRZ transitions as happening on the trailing (falling) clock edge in order to compare NRZ-Level to other encoding methods, such as the mentioned Manchester code, which requires clock edge information (is the XOR of the clock and NRZ, actually) and to see the difference between NRZ-Mark and NRZ-Inverted.

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November 9th, 2012 11:20
larryp (Stanford University (CA), Computer science)
Inwards telecom, some sort of not-come back-to-absolutely nothing (NRZ) occupation value is a binary computer code where 1's ar delineated aside one important situation (usually a plus potential) and 0s are delineated by another major problem (commonly a bad potential drop), without any various other simple or relax situation.

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November 9th, 2012 12:00
butterflymadam (Stanford University (CA), Operating systems)
NRZ-Level itself is not a synchronous system but rather an encoding that can be used in either a synchronous or asynchronous transmission environment, that is, with or without an explicit clock signal involved. Because of this, it is not strictly necessary to discuss how the NRZ-Level encoding acts "on a clock edge" or "during a clock cycle" since all transitions happen in the given amount of time representing the actual or implied integral clock cycle.

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November 9th, 2012 12:09
lumidee (Yale University (CT), Chemistry)
NRZI [Non-Return-to-Zero-Inverted Encoding]: A '0' is encoded as no change in the level. However a '1' is encoded depending on the current state of the line. If the current state is '0' [low] the '1' will be encoded as a high, if the current state is '1' [high] the '1' will be encoded as a low.

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