略語大辞典 [Opt] 21 FTTS fiber-to-the-subscriber (telecommunications system) 加入者光ファイバー(通信システム). fiber-to-the-subscriber (telecommunications system); e.g. FTTS local-loop; a local fiber optic communications system; [Opt:L:C]. 丸善「略語大辞典」JLogosID : 11875466