The Fibre Attenuators are used in the fibre optic links to reduce the optical power at a certain fixed rate. SC fiber optic attenuators work in 125 -1625nm range with optional attenuation value from 1dB to 3 dB.SC UPC fiber optic attenuator return loss is more than 55dB.ALOGIC SC attenuators are manufactured and tested according to the industrial standards and they are 1 % compatible to use with equipment and components from other suppliers.