網(wǎng)絡(luò)一般性術(shù)語-O

OAM Operation , Administration 　 操作、管理與維護(hù)
     　and Maintenance
    ODI 　Outgoing Defect Indication 　 輸出缺陷指示
    OEI 　Outgoing Error Indication 輸出誤碼指示
    OFS 　Out-of-Flame Second 　 幀失步秒
    OHA 　OverHead Access 開銷接入
    OOF 　Out Of Frame 幀失步
    OS Optical Section 　光段
    OSn 　Optical Section layer， STM-N光段層，n = l,4, 16
     　level n (n = l,4, 16)
    OW Order Wire 　公務(wù)