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EN 61280-2-8:2003
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Fibre optic communication subsystem test procedures - Digital systems - Part 2-8: Determination of low BER using Q-factor measurements
26-04-2021
04-04-2003
1 Scope
2 Definitions and abbreviated terms
2.1 Definitions
2.2 Abbreviations
3 Measurement of low bit-error ratios
3.1 General considerations
3.2 Background to Q-factor
4 Variable decision threshold method
4.1 Overview
4.2 Apparatus
4.3 Sampling and specimens
4.4 Procedure
4.5 Calculations and interpretation of results
4.6 Test documentation
4.7 Specification information
5 Variable optical threshold method
5.1 Overview
5.2 Apparatus
5.3 Items under test
5.4 Procedure for basic optical link
5.5 Procedure for self-contained system
5.6 Evaluation of results
Annex A (normative) Calculation of error bound in the value of Q
Annex B (informative) Sinusoidal interference method
Bibliography
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