DS EN 50377-5-1:2003 Connector Sets And Interconnect Components To Be Used In Optical Fibre Communication Systems - Product Specifications - Part 5-1: Type Ec Terminated On Iec 60793-2 Category B1.1 Singlemode Fibre Describes the initial, start of life dimensional, optical, mechanical and environmental performance requirements which a terminated and assembled singlemode EC connector set (plug adapter plug) must m