The tmnxOtuIfFineGrBerEntry contains fine granularity pre-FEC BER SD and SF threshold information for an individual OTU encapsulated physical interface. For the coefficient MIB attributes, 10 represents 1.0 and 99 represents 9.9. The combination of the SF/SD threshold coefficient and exponent form a number: coefficient x 10^-exponent; therefore, by example, a tmnxOtuIfFineGrBerSfThresh value of 4 and a tmnxOtuIfFineGrBerSfThrCoef value of 32 forms 3.2 x 10^-4 or 3.2E-04 in scientific notation. For a set request, the combination of the coefficient and exponent for an SD raise threshold must be a lower value than for the SF raise threshold; otherwise, the set request will fail with error code inconsistentValue. For a set request, the combination of the coefficient and exponent for a clear threshold must be a lower value than for the raise threshold; otherwise, the set request will fail with error code inconsistentValue. The row exists only if the associated tmnxOtuIfEntry is active.