略語大辞典 [C] 22 PHY physical (layer) (光ファイバー情報ネットワーク インタフェースFDDI規格の)物理(層).physical (layer); of a network of FDDI(fiber distributed data interface) standard by ANSI; ref. PMD(physical layer medium), DLL(data link layer), MAC(media access control), SMT(station management); [C]. 丸善「略語大辞典」JLogosID : 11855722