Housed in the FTB-400 portable platform, the FTB-5503 Polarization Mode Dispersion Analyzer uses a patented approach to measuring PMD of installed links -- amplified or not -- as specified by the TIA's new FOTP-124A standard and according to the generalized interferometric approach (GINTY). It is the only PMD unit in the world to test through EDFAs, which is made possible thanks to the mathematical subtraction of the autocorrelation peak in the interferogram. This also enables the use of any source shape. For the first time, a PMD of zero can be measured as such. PMD is now measured precisely, no more mere assumptions.