A.數(shù)據(jù)通信網(wǎng)DCN B.網(wǎng)元功能(NEF) C.中介裝置MD D.SMK
A.光線路終端(OLT) B.ODN/ODT C.光網(wǎng)絡(luò)單元(ONU) D.適配設(shè)施(AF) E.TMN
A.業(yè)務(wù)節(jié)點接口(SNI) B.UNI C.V5 D.VB5