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Testing criteria for the Bit Error Rate Test (BERT) test

2014-02-25

The pass/fail limits are set by the ITU-T standard G.821. The following are what the standard calls for:

  • Errored Seconds ratio must be less than 1.2%
  • The Severely Errored Seconds ratio must be less than 0.015%
  • There must be no unavailable seconds
  • The Bit Error Rate should not exceed 1.1 E-003
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