An electronic circuit for converting power from a floating source of DC power to a dual direct current output is disclosed. By delivering a number of wavelengths to the PON and using various dynamically reconfigurable groupings of the wavelengths to support differing subsets of users, the maximum capabilities of a static PON architecture are greatly exceeded. A filter element is provided in the filter housing. The method also includes extracting, from each of the extracted items, multiple curation-specific features.