DIN EN 61280-4-1 VDE 0888-410:2017-02

This part of IEC 61280-4 is applicable to the measurement of attenuation of installed optical fibre cabling plant using multimode optical fibre. This cable plant can include multimode 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. In this standard, the optical fibres that are addressed include sub-categories A1a (50/125 µm) and A1b (62,5/125 µm) multimode optical fibres, as specified in IEC 60793-2-10. The attenuation measurements of the other multimode categories can be made, using the approaches of this standard, but the source conditions for the other categories have not been defined.