"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Previous set of "O" Abbreviations and Acronyms
| ONA | - | open network architecture |
| OP iLink | - | FireWire, Sony [Firewire Bus] |
| opm | - | operations per minute |
| OPMODEL | - | operations model |
| OPSEC | - | operations security |
| OPU | - | Optical channel Payload Unit |
| OPX | - | off-premises extension |
| OS | - | Operating System [OS Vendors] |
| OS2 | - | Operating System/2 |
| OSD | - | On Screen Display |
| OSHA | - | Occupational Safety and Health Administration |
| OSI | - | open switching interval |
| OSI | - | Open Systems Interconnection [OSI Definition] |
| OSI-RM | - | Open Systems Interconnection—Reference Model |
| OSP | - | Organic Solderability Preservation |
| OSRI | - | originating stations routing indicator |
| OSSN | - | originating stations serial number |
| OTAM | - | over-the-air management [automated HF network nodes] |
| OTAR | - | over-the-air re-keying |
| OTDR | - | optical time domain reflectometer [OTDR Gear] |
| OTN | - | Optical Transport Network [OTN] |
| OTP | - | One Time Programmable [Integrated Circuit] |
| OTS | - | Off-The-Shelf [COTS Definition] |
| OUM | - | Ovonics Unified Memory [Manufacturers of OUM IC's] |
| OUT | - | Optical channel Transport Unit |
| OW | - | orderwire [circuit] |
Next page of "P" Abbreviations and Acronyms
