Glossary

Term	Main definition
OA	Office Automation Hits - 895
OAA	Over Air Addressing Hits - 852
OC	Optical Carrier Hits - 876
OC-12	655 Mb/s Hits - 855
OC-3	150 Mb/s Hits - 835
OC-48	2.4 Gb/s Hits - 825
OC-N	Optical Carrier - N Hits - 820
OCC	Other Common Carrier Hits - 885
OCU	Office Channel Unit Hits - 897
OCU-DP	Office Channel Unit - Data Port Hits - 943
ODI	Open Data-link Interface Hits - 867
OEM	Original Equipment Manufacture Hits - 864
OFDM	Orthogonal Frequency Division Multiplexing Hits - 888
OFDMA	Orthogonal Frequency Division Multiple Access Hits - 788
OFS	Operational Fixed Station Hits - 846
OIRT	Organisation International de Radiodiffusion et Television Hits - 879
OMT	Orthognal Mode Transducer Hits - 901
OMUX	Output Multiplexer Hits - 818
ONA	Open Network Architecture Hits - 857
ONU	Optical Network Units Hits - 826
OOF	Out Of Frame Hits - 809
OOK	On Off Keying Hits - 863
OOP	Object Oriented Programming Hits - 846
OOS	Out Of Service Hits - 848
OPGW	overhead Optical Ground Wave Hits - 833
OPX	Off Premises Extension Hits - 829
OQPSK	Offset Quadrature Phase Shift Keying Hits - 864
ORL	Optical Return Loss Hits - 811
OSC	Oscillator Hits - 851
OSD	On Screen Display Hits - 856
OSI	Open Systems Interconnect Hits - 879
OSPF	Open Shortest Path First Hits - 831
OSS	Operations Support System Hits - 810
OTDR	Optical Time Domain Reflectometer Hits - 840
OTG	On Time Guarantee Hits - 871
OTN	Optical Transmission Nodes Hits - 832
OTP	One Time Programmable Hits - 854
OTS	Orbital Test Satellite Hits - 840
OWF	Optimum Working Frequency Hits - 873