Glossary

Term	Main definition
OA	Office Automation Hits - 870
OAA	Over Air Addressing Hits - 826
OC	Optical Carrier Hits - 852
OC-12	655 Mb/s Hits - 831
OC-3	150 Mb/s Hits - 812
OC-48	2.4 Gb/s Hits - 800
OC-N	Optical Carrier - N Hits - 790
OCC	Other Common Carrier Hits - 857
OCU	Office Channel Unit Hits - 874
OCU-DP	Office Channel Unit - Data Port Hits - 916
ODI	Open Data-link Interface Hits - 841
OEM	Original Equipment Manufacture Hits - 840
OFDM	Orthogonal Frequency Division Multiplexing Hits - 864
OFDMA	Orthogonal Frequency Division Multiple Access Hits - 765
OFS	Operational Fixed Station Hits - 823
OIRT	Organisation International de Radiodiffusion et Television Hits - 855
OMT	Orthognal Mode Transducer Hits - 880
OMUX	Output Multiplexer Hits - 790
ONA	Open Network Architecture Hits - 834
ONU	Optical Network Units Hits - 805
OOF	Out Of Frame Hits - 790
OOK	On Off Keying Hits - 838
OOP	Object Oriented Programming Hits - 824
OOS	Out Of Service Hits - 827
OPGW	overhead Optical Ground Wave Hits - 811
OPX	Off Premises Extension Hits - 806
OQPSK	Offset Quadrature Phase Shift Keying Hits - 840
ORL	Optical Return Loss Hits - 785
OSC	Oscillator Hits - 830
OSD	On Screen Display Hits - 830
OSI	Open Systems Interconnect Hits - 857
OSPF	Open Shortest Path First Hits - 804
OSS	Operations Support System Hits - 786
OTDR	Optical Time Domain Reflectometer Hits - 818
OTG	On Time Guarantee Hits - 848
OTN	Optical Transmission Nodes Hits - 808
OTP	One Time Programmable Hits - 827
OTS	Orbital Test Satellite Hits - 819
OWF	Optimum Working Frequency Hits - 848