Onlineattenuator fiber opticwaa aalad dadban oo loo isticmaalo in lagu dhimo baaxadda calaamada iftiinka iyada oo aan si weyn loo beddelin qaabka hirarka laftiisa.Tani inta badan waa shuruudo ku jira Codsiyada Cufnaanta Wave Division Multiplexing (DWDM) iyo Erbium Doped Fiber Amplifier (EDFA) ee codsiyada halka soo-qaaduhu aanu aqbali karin calaamada ka dhalata isha iftiinka awoodda sare leh.