FTTH 1,patchcord,pigtail,connector,attenuator 2,splitter,sfp,converter 3,odf,patch panel 4,splice closure,terminal box etc ... , Connector,3, Adapter,4, Optical coupler,5, Attenuator,6, Optic media converter,7, Optic splice closure,8, Optic terminal box,9, ODF ...