Step index singlemode optical fibres. These fibres provide optimum performance at 1310 and 1550 nm. They can be used on long haul, metropolitan, access, CATV and premises applications in telecom.

These fibres comply with IEC 60793-2-50, UIT G.652.B, G.652.C, G.652.D,G.655, Telcordia GR-20-CORE, ANSI/IECA S-87-640.