O le module e faʻaliliuina 4 inputs channels (ch) o 10Gb / s faʻamatalaga eletise i le 4 CWDM faailoilo mataʻutia, ma faʻateleina i latou i se tasi alalaupapa mo le 40Gb / s faʻasalalauga faʻapitoa.I le isi itu, i luga o le itu e taliaina, o le module optically de-multiplexes se 40Gb / s input i 4 CWDM alavai faailoilo, ma faaliliuina i latou 4 alalaupapa faʻamatalaga eletise.

O galu tutotonu o le 4 CWDM alalaupapa o 1271nm, 1291nm, 1311nm ma 1331nm o sui o le CWDM wavelength grid faʻamatalaina i le ITU-T G694.2.O loʻo i ai se fesoʻotaʻiga LC faʻalua mo le faʻaogaina o mata ma se fesoʻotaʻiga 38-pin mo le faʻaogaina eletise.Ina ia faʻaitiitia le faʻasalalau faʻapitoa i totonu o le faiga umi, e tatau ona faʻaogaina le fiber-mode fiber (SMF) i lenei module.