... /16Center Wavelength, nmCh 21~60 or ITU Standard (customer specify)Channel Spacing, nm0.8Channel Spacing, GHz100Passband @0.5dB, nmITU ± ... dB for 4 channel≤2.5Insertion Loss, dB for 8 channel≤3.5Insertion Loss, dB for 16 channel≤4.5Adjacent Channel Isolation, dBN / ... A ≥25Non-adjacent Channel Isolation, dBN / ...