| ONT |
Optical Network Termination
|
| ONTAS |
Optical Network Test Access System
|
| ONU |
Optical Network Unit
|
| OOK |
On/Off Keying
|
| OP |
Optical Path
|
| OPE |
Operating Expense
|
| OpEx |
Operational Expenditure
|
| OpEx |
Operating Expenses
|
| OPS |
Operator Provisioning Station
|
| OPSK |
Quadrature Phase Shift Keying
|
| OPTIS |
Overlapped PAM Transmission with Interlocking Spectra
|
| OPXC |
Optical Path Cross-Connect
|
| ORAN |
Open Radio Access Network
|
| ORB |
Object Request Broker
|
| ORT |
Operational Readiness Test
|
| OS |
Operating System
|
| OSA |
Open Service Architecture
|
| OSC |
Optical Supervisory Panel
|
| OSD |
On-Screen Display
|
| OSGI |
Open Services Gateway Initiative
|
| OSI |
Open Systems Interconnection
|
| OSMINE |
Operations Systems Modification of Intelligent Network Elements
|
| OSN |
Optical-Service Network
|
| OSNR |
Optical Signal-To-Noise Ratio
|
| OSP |
Outside Plant
|
| OSPF |
Open Shortest Path First
|
| OSS/J |
OSS through Java
|
| OSU |
Optical Subscriber Unit
|
| OTA |
Over the Air
|
| OTM |
Optical Terminal Multiplexer
|
| OTN |
Optical Transport Network
|
| OTOI |
Output 3rd Order Intercept point
|
| OUI |
Optical User Interface
|
| OUSP |
Optical Utility Services Platform
|
| OVPN |
Optical Virtual Petabits Network OR Optical Virtual Private Network
|
| OWSR |
Optical Wavelength Switching Router
|
| OXC |
Optical Cross-Connect
|