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PrivateOptical Network Passive Optical Network Private Optical Node Protected Optical Node
OLT(Optical Line Terminal)-光线路终端 ONU(Optical NetworkUnit)-光网络单元 ONT(Optical Network Terminal)-光网络终端 ODN(Optical Distribution Network)-光分配网
a new way of highway speed control a new pattern for painting highways a new way of training drivers a new type of optical illusion
GPON系统采用WDM技术,实现双纤双向传输 . 下行数据流采用广播技术 上行数据流采用TDMA技术 PON由光线路终端OLT (Optical Line Terminal )、光网络单元ONU (Optical Network Unit )和无源分光器POS(Passive Optical Splitter )组成