SMF Connector Grade definition:
>97% of samples
return loss for APC connectors <-60dB (mated)
IL measured by Random Mating Exceed IEC Random Mating Grade B, from Senko "RANDOM MATING IL VS. IL BY MASTER JUMPER".
G.657A1, 10 mm bending radius
G.657A2 & B2, 7.5 mm bending radius
G.657B3, 5 mm bending radius
all compliant with ITU-T G.652.D fibres
