Fibre-types Fri, Jul 21, 2017 fibre, fiber, optic, cable, drop lead, sfp, OM1, OM2, OM3, OM4, LC, singlemode, multimode 0 2263 4/5 (1 Vote) SX uses multimode (grey connector jacks) LX typically uses singlemode (blue connector jacks) for <5km , or multimode (grey connector jacks) <550m There are two basic fibre families Singlemode (Blue connector jacks ) (SM, OS1.OS2) ... Read More