Optical Network Design and Implementation

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jitter.

Timing jitter is the short-term variation of a digital signal's significant instant from its ideal position in time, where short-term implies phase oscillations of frequency greater than or equal to 10 Hz. Significant instants include, for instance, optimum sampling instants. Long-term variations, where the variations are of frequency less than 10 Hz, are called wander.

jitter generation.

The process whereby jitter appears at the output port of an individual piece of digital equipment in the absence of applied jitter at the input. When looped back at the high-speed rate, whether or not a standard interface exists at the higher rate, Category I equipment must produce less than 0.3 unit intervals (UIs) of route mean square (RMS) jitter ...