|Reference||IEC 61280-4-1 ed2.0 withdrawn corrigendum||
|Title||Fibre-optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement|
|Abstract||IEC 61280-4-1:2009 is applicable to the measurement of attenuation of installed fibre-optic cabling using multimode fibre, typically in lengths of up to 2 000 m. This cabling can include multimode fibres, connectors, adapters and splices. In this standard, the fibre types that are addressed include category A1a (50/125 µm) and A1b (62,5/125 µm) 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. The main changes with respect to the previous edition are:
- An additional measurement method based on optical time domain reflectometry (OTDR) is documented, with guidance on best practice in using the OTDR and interpreting OTDR traces.
- The requirement for the sources used to measure multimode fibres is changed from one based on coupled power ratio (CPR) and mandrel requirement to one based on measurements of the near field at the output of the launching test cord.
- Highlighting the importance of, and giving guidance on, good measurement practices including cleaning and inspection of connector end faces.
|Technical Committee||86C - Fibre optic systems and active devices|
|Work in progress||
Quick access by ref. number
|Your basket is empty|
|Accepted credit cards:|
|Prices in CHF (Swiss francs)|
|Request a pro forma to pay by bank transfer or cheque|
|Learn how to share your publications with your colleagues, using networking options|
- IEC 60730-1 Ed. 5.0
- IEC 60947-1-am2 Ed. 5.0
- IEC 60793-1-50 Ed. 2.0
- IEC 60794-3 Ed. 4.0
- IEC/TR 61641 Ed. 3.0
- IEC 61076-2-104 Ed. 2.0
- IEC 60297-3-108 Ed. 1.0