OA：Optical Amplifier，光放大器。關(guān)聯(lián)詞：EDFA、OFA、OSΑ

OADM：Optical Add-Drop Multiplexer，光分插復(fù)用設(shè)備

OBS：Optical Burst Switching，光突發(fā)交換。關(guān)聯(lián)詞：OPS、OWS  

OCC：Cross Connecting Cabinet for Communication Optical Cable，通信光纜交接箱 

ODB：Optical Fiber Cable Distribution Box，光纜分纖箱

ODF：Optical fibres Distribution Frame，光纖配線架。關(guān)聯(lián)詞：MDF、DDF

OF：Optical fibres，光導(dǎo)纖維

OFA：Optical Fiber Amplifier，光纖放大器

OI：Optical Internet，光互聯(lián)網(wǎng)

OMAN：Optical Metropolitan Area Network，光城域網(wǎng) 

OMDF：Optical Main Distribution Frame，光纖總配線架。關(guān)聯(lián)詞：MDF、ODF、DDF

OPGW：Optical Ground Wire，光纖復(fù)合地線。關(guān)聯(lián)詞：OPPC

OPPC：Optical Phase Conductor，光纖復(fù)合相線。關(guān)聯(lián)詞：OPGW

OPS：Optical Packet Switching，光分組交換。關(guān)聯(lián)詞：OBS、OWS

OSΑ：Optical Semiconductor Amplifier，半導(dǎo)體光放大器

OTDM：Optical Time Division Multiplex，光時(shí)分復(fù)用 

OTDR：Optical Time Domain Reflectometer，光時(shí)域反射儀

OTN：Optical Transport Network，光傳送網(wǎng)絡(luò)

OTU：Optical Transponder Unit，光轉(zhuǎn)換器單元

OVPN：Optical Virtual Private Network，光虛擬專用網(wǎng)

OWS：Optical Wavelength Switching，光波長交換。關(guān)聯(lián)詞：OBS、OPS

OXC：Optical Cross-Connect，光交叉連接