This part of IEC 61280-4 is applicable to the measurement of attenuation of installed fibreoptic cabling using multimode fibre@ typically in lengths of up to 2 000 m. This cabling can include multimode fibres@ connectors@ adapters and splices. Cabling design standards such as ISO/IEC 11801@ ISO/IEC 24702 and ISO/IEC 24764 contain specifications for this type of cabling. ISO/IEC 14763-3@ which supports these design standards@ makes reference to the test methods of this standard. In this standard@ the fibre types that are addressed include category A1a (50/125 ??) and A1b (62@5/125 ??) multimode 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.
IEC 61280-4-1:2009 history
2022IEC 61280-4-1:2019/COR2:2022 Corrigendum 2 - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement
2021IEC 61280-4-1:2019/AMD1:2021 Amendment 1 - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement
2021IEC 61280-4-1:2021 Amendment 1 - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement
2020IEC 61280-4-1:2019/COR1:2020 Corrigendum 1 - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement
2019IEC 61280-4-1:2019 Amendment 1 - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement
2009IEC 61280-4-1:2009 Fibre-optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement
2003IEC 61280-4-1:2003 Fibre-optic communication subsystem test procedures - Part 4-1: Cable plant and links; Multimode fibre-optic cable plant attenuation measurement