Gịnị bụ pasive CWDM

CWDM passive wavelength division multiplexing akụrụngwa nwere ike ịchekwa akụ fiber na ọnụ ahịa ịkparịta ụka n'ụzọ dị irè, dozie nsogbu ụkọ eriri, nnyefe transperent ọtụtụ ọrụ yana belata oge owuwu.Redio na TV 1310/1550CATV akara ngosi TV na-ebufe n'ụzọ doro anya, na-achọpụta nnyefe nnwere onwe nke ọrụ CATV na ọrụ data n'otu eriri ngwa anya na-etinyeghị aka na ibe ha, ma nwee ike wulite netwọkụ ma na-azụ ahịa n'ime obere oge.
N'ihi na CWDM nwere ọtụtụ uru dị ka ọnụ ala dị ala, obere ike oriri, obere nha, wdg, ọ bụ ọnụ ala, ngwọta nnyefe dị elu.
Ugbu a CWDM ejirila ọtụtụ ebe na mgbasa ozi netwọk mpaghara mepere emepe.Ụlọ ọrụ anyị emepụtala ngwá ọrụ CWDM maka G652, G.653, na G.655 eriri anya nke dabeere na ahịa ahịa, nke bụ nhọrọ dị mma maka netwọk mpaghara na-eto eto.