DWDM Optical Add/Drop Multiplexer (OADM) yog ib qho khoom siv kho qhov muag tsis pom kev siv hauv WDM tes hauj lwm ntxiv thiab xa rov qab ib qho / ntau 100 GHz DWDM raws hauv C-band rau hauv ib lossis ob lub fibers, thaum cia tus so ntawm lub wavelengths hla mus rau qhov chaw xav tau. DWDM OADM modules muaj nyob rau hauv ib sab (East lossis West) thiab ob sab (East thiab West) kev teeb tsa. Nrog rau qhov sib piv MUX / DEMUX units muab tso rau ntawm txhua qhov kawg ntawm qhov kev sib txuas kho qhov muag, ntau cov ntaub ntawv sib txuas tuaj yeem ua ke thiab xa mus rau ib leeg-hom fiber ntau lub cev. Lub passiveOADMmodules tuaj yeem ntxiv lossis poob 2, 4, 8 cov ntaub ntawv raws ntawm txhua qhov chaw ntawm lub cev.
