... /16Center Wavelength, nmCh 21~60 or ITU Standard (customer specify)Channel Spacing, nm0.8Channel Spacing, GHz100Passband @0.5dB, nmITU ± 0.1Insertion ... Loss, dB for 8 channel≤3.5Insertion Loss, dB for 16 channel≤4.5Adjacent Channel Isolation, dBN / A ≥25Non-adjacent Channel Isolation, dBN / A ≥35Uniformity ...