Isochronous

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Isochronous means having an equal time difference or occurring simultaneously. For example, a pendulum's oscilliation is isochronous, regardless of amplitude. If a diagram is drawn, 'contour' lines connecting periods of equal time difference are called isochrones.

In telecommunication, the term isochronous has the following meanings:

Of a periodic signal, pertaining to transmission in which the time interval separating any two corresponding transitions is equal to the unit interval or to a multiple of the unit interval.
Pertaining to data transmission in which corresponding significant instants of two or more sequential signals have a constant phase relationship.

In power generation the term Isochronous has the following meanings:

  3. Isochronous as related to power generation is to be considered "Flat Frequency or 0% Generator droop.

Note: "Synchronous" and "asynchronous" are relationships, while "isochronous" and "anisochronous" are characteristics.

This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.