... loss 3, Easy to operate 4, Good in exchange ST optical patch cord ST fiber optic jumper ... faster polishing, and low back reflection and optical loss, while ensuring maximum repeatability ST fiber ... faster polishing, and low back reflection and optical loss, while ensuring maximum repeatabilityST optic fiber ... ), Multimode (MM: 50/125um or 62.5/125um)4, Cable Quantity: “2C” means two cores5, Cable ...