DS EN 50377-4-4:2011 Connector Sets And Interconnect Components To Be Used In Optical Fibre Communication Systems - Product Specifications - Part 4-4: Type Sc-Pc Simplex Terminated On Iec 60793-2-50 Category B1.1 And B1.3 Singlemode Fibre, With Full Zirconia Ferrule Category U Covers the initial, start of life dimensional, optical, mechanical and environmental performance requirements which a connector terminated with cylindrical zirconia PC ferrule and assembled singlemode