orthogonal frequency division multiplexing (OFDM)

Synonymous with discrete multitone

(DMT). See DMT.

• offset quadrature phase shift keying (OQPSK)
• offshoring
• OFN (Optical Fiber, Nonconductive)
• OFNP (Optical Fiber, Nonconductive, Plenum)
• OFNR (Optical Fiber, Nonconductive, Riser)
• OH
• Ohm, Georg Simon (1787–1854)
• Ohm’s Law
• Ohm’s Law
• OLT (Optical Line Terminal)
• OLT (Optical Line Terminal)
• Omnibus Budget Reconciliation Act of 1993 (OBRA 93)
• OMR (Optical Mark Recognition)
• ones density
• on-hook
• ONT (Optical Network Terminal)
• ONU (Optical Network Unit)
• OOO (Optical-Optical-Optical)
• opaque OXC (opaque Optical CROSS-Connect)
• open circuit
• open-loop algorithm
• Open Shortest Path First (OSPF)
• open source
• open source software (OSS)
• open standard