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