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More specialist and precise definitions |
{{telecom-stub}} -- In telecommunications and data communication systems, |
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In [[telecommunications]] and [[data communication]] systems, an '''errored second''' is an interval of a [[second]] during which any error whatsoever has occurred, regardless of whether that error was a single bit error, or a complete loss of communication for that entire second, is not important for the purpose of counting errored seconds.
In communication systems with very low uncorrected [[bit error rate]]s, such as modern fiber optic systems, errored seconds are often a better measure of effective error rate than simple bit error rate. For many modern communication systems, even a single uncorrected bit error is enough to cause the loss of a [[data packet]] by causing its [[CRC]] to fail; whether that packet loss was caused by a single bit error or a burst of a hundred-bit-long [[error burst]] is irrelevant.
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