略語大辞典 [C] 22 OC optical carrier (level) (通信での)光信号(水準).optical carrier (level); signal levels of theSonet optical transmission standard; e.g. OC-1, which is the basic 51.840 Mb/s signal level; [C:Opt:E]. 丸善「略語大辞典」JLogosID : 11863612