DS EN 50378-3-1:2007 Passive Components To Be Used In Optical Fibre Communication Systems - Product Specifications - Part 3-1: Type: 100/200 Ghz Dwdm Module Terminated On Iec 60793-2-50 Category B1.1 And B1.3 Single Mode Fibre Describes the initial, start of life dimensional, optical, mechanical and environmental requirements a unconnectorised or connectorised 100 & 200 GHz DWDM module has to fulfill in order to be characte