We have experience in implementing the single-mode telecommunications cables [SM] with a core diameter of 9/125. Furthermore we install the multi-mode wires [MM] with a core diameter of 62,5/125 or 50/125. Wires of the first, single-mode type are used in case of long distance transmissions. 

Currently multi-mode [MM] cables with a diameter of 62,5/125 are usually used in telecommunications, whilst  these with 50/125 are rather implemented in case of data transmissions and LAN networks. Fibre optic system is characterized by an high speed of the data transmission as well as a resistance to the electromagnetic interference CE.