EXFO has added multimode test capabilities to its fibre characterisation tool, the iOLM, making it a powerful troubleshooting tool for fibre-to-the-antenna (FTTA) and data centre networks in both multimode and single-mode applications.
Essentially, this means that the FTB-720 LAN/WAN Access test module now supports full iOLM functionalities on both single-mode and multimode fibres. Launched in 2011 for single-mode, the iOLM was designed to simplify OTDR (optical time domain reflectometer) testing by removing the need to set parameters as well as analyse and interpret multiple complex OTDR traces.
By combining multiple pulse widths on multiple wavelengths with advanced algorithms, the iOLM correlates all OTDR results to locate and identify faults with maximum resolution, all at the push of a single button. It enables fibre technicians of all skill levels to characterise end-to-end fibre links the same way an experienced OTDR technician would.
To cope with multimode networks’ increasing requirements, EXFO also announced that its solution now fulfils encircled flux compliance. The encircled flux standard (EF), as recommended by the Telecommunications Industry Association (TIA-526-14-B) and the International Electrotechnical Commission (IEC 61280-4-1), is a method of controlling light source launch conditions to eliminate variations in test results that tend to occur when using different sources in multimode environments.
EXFO developed a compact and lightweight external launch mode conditioner, the SPSB-EF, which can be paired with an FLS-600 light source or any EXFO multimode OTDR to create a precise, repeatable and cost-effective EF-compliant test solution.
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