DIN EN 61280-4-2:2015-05

This part of IEC 61280 is applicable to the measurement of attenuation and optical return loss of installed optical fibre cable plant using single-mode fibre. This cable plant can include single-mode optical fibres, connectors, adapters, splices and other passive devices. The cabling may be installed in a variety of environments including residential, commercial, industrial and data centre premises, as well as outside plant environments. This standard may be applied to all single-mode fibre types including those designated by IEC 60793-2-50 as Class B fibres. The principles of this standard may be applied to cable plants containing branching devices (splitters) and at specific wavelength ranges in situations where passive wavelength selective components are deployed, such as WDMs, CWDM and DWDM devices. This standard is not intended to apply to cable plant that includes active devices such as fibre amplifiers or dynamic channel equalizers. The standard concerns planning offices and craftsmen tendering attenuation measurements by means of power meters or ODTR instruments, carry out measurements or check measurement protocols for the purpose of acceptance documentation. It provides them with security during the execution of the measurement and the normalization of the measurement set-up. The responsible committee is Subcommittee DKE/UK 412.2 "Komponenten für Kommunikationskabelanlagen" ("Components for communications cabling systems") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.