IEC 61280-2-8 Ed. 1.0 en:2003, Fibre optic communication subsystem test procedures - Digital systems - Part 2-8: Determination of low BER using Q-factor measurements

Provides two main methods for the determination of low BER values by making accelerated measurements. The two main methods are the variable decision threshold method (clause 4) and the variable optical method (clause 5). In addition a third method, the sinusodial interference method, is described in Annex B.