non-return-to-zero


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non-return-to-zero

[′nän ri‚tərn tə ′zir·ō]
(computer science)
A mode of recording and readout in which it is not necessary for the signal to return to zero after each item of recorded data. Abbreviated NRZ.
References in periodicals archive ?
Each transmitter consisted of an optical source with 9 dBm output power, the phase of the output radiation of which was modulated using a DPSK modulator, which in its turn was driven by a flow of non-return-to-zero (NRZ) coded electrical pulses.
Altera is demonstrating today the FPGA industrys first dual-mode 56-Gbps pulse-amplitude modulation with 4-levels (PAM-4) and 30-Gbps non-return-to-zero (NRZ) transceivers.
Current applications require non-return-to-zero (NRZ) data transport in long-haul (LH) SONET fiber optics for as much as hundreds of kilometers.