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Aerospace Acronym <strong>Guide</strong> •••<br />

OCC occasionally connected computing<br />

OCC operations control center<br />

OCD oceanic clearance delivery<br />

OCIG Oceanic Communications Improvement Group<br />

OCO overseas contingency operations<br />

OCP oceanic clearance processor<br />

OCTAS obstacle cable and terrain avoidance system<br />

ODA open document architecture<br />

ODA Organization Designation Authorization<br />

ODAPS oceanic display and planning system<br />

ODIAC operational requirements for ATM air/ground<br />

data communications (Eurocontrol)<br />

ODID operational display and input development<br />

ODIN observe, detect, identify, neutralize<br />

ODL oceanic data link<br />

ODL optical data link<br />

OEI one engine inoperative<br />

OEM original equipment manufacturer<br />

OEP Operational Evolution Partnership (FAA)<br />

OES Office of Emergency Services<br />

OEU overhead electronics unit<br />

OFDM orthogonal frequency division multiplexing<br />

OFDPS oceanic flight data processing system<br />

OFP operational flight program<br />

OGE operational ground equipment<br />

OHA operational hazard assessment<br />

OHSC overhead stowage compartments<br />

OHU overhead unit (HUD)<br />

OI operational improvement<br />

OID object identifier<br />

OIG Office of Inspector General (U.S.)<br />

OIS operational information systems<br />

OIT onboard information terminal<br />

OJT on-the-job training<br />

OLAN onboard local area network<br />

OLDI on-line data interchange<br />

OLED organic LED<br />

OM outer marker<br />

OMB Office of Management and Budget (U.S.)<br />

OMS onboard maintenance system<br />

OMT object modeling technique<br />

OMT onboard maintenance terminal<br />

ONR Office of Naval Research (U.S.)<br />

OOA object-oriented analysis<br />

OOD object-oriented design<br />

OODA observe, orient, decide and act<br />

OOOI out/off/on/in<br />

OPA operational performance assessment<br />

OPAS overhead panel ARINC 629 system<br />

OPBC overhead panel bus controller<br />

OPD Optimized Profile Descent<br />

OPS operations<br />

OPS OPS per second<br />

OPSPECS OPS specifications<br />

OPU overspeed protection unit<br />

OPV optionally piloted vehicle<br />

OR operational requirements<br />

ORB object request broker<br />

ORD operational requirements document<br />

ORD operations readiness demonstration<br />

OS<br />

OS<br />

OSA<br />

open service<br />

operating system<br />

operational safety assessment<br />

OSCAR Orbiting Satellite Carrying Amateur Radio<br />

OSD<br />

OSDS<br />

OSE<br />

OSED<br />

OSEIC<br />

OSGCS<br />

OSI<br />

OSIE<br />

Office of the Secretary of Defense (U.S.)<br />

oceanic systems development support<br />

open systems environment<br />

operational service and environment definition<br />

operational service and environment information<br />

capture<br />

one system ground control station<br />

open systems interface/interconnection<br />

OSI environment<br />

OSI-RM OSI-reference model<br />

OSJTF<br />

OSPF<br />

Open Systems Joint Task Force (U.S.)<br />

open shortest path first<br />

OSPGCS one system portable ground control station<br />

OSR<br />

OSRVT<br />

OTA<br />

OTA<br />

OT&E<br />

OTFP<br />

OTH<br />

(U.S. Army)<br />

order status report<br />

One System Remote Video Terminal<br />

Office of Technology Assessment (U.S.)<br />

other transaction agreement<br />

operational test and evaluation<br />

operational traffic flow planning<br />

over the horizon<br />

OTM-4D Oceanic Trajectory Management-4D<br />

OTP<br />

OTS<br />

OVHT<br />

P2FEP<br />

P3I<br />

Office of Telecommunications Policy (U.S.)<br />

off the shelf<br />

overheat<br />

P<br />

Preliminary Eurocontrol test of air/ground<br />

datalink (PETAL)-II front-end processor<br />

preplanned product improvements<br />

P-Code GPS precision code<br />

P-DME<br />

precision DME<br />

P-RNAV precision area navigation<br />

P/F<br />

P/RST<br />

PA<br />

PA<br />

PA<br />

PABX<br />

PAC<br />

PACIS<br />

PAD<br />

PAL<br />

PAM<br />

PAMRI<br />

poll/final<br />

press to reset<br />

passenger address<br />

power amplifier<br />

precision approach<br />

private automatic branch exchange<br />

path attenuation compensation<br />

passenger address and commu nication<br />

interphone system<br />

packet assembler-disassembler<br />

programmable array logic<br />

pulse amplitude modulation<br />

peripheral adapter module replacement item<br />

PANS-OPS procedures for air navigation services-aircraft<br />

operations<br />

PANYNJ Port Authority of New York and New Jersey<br />

PAPD<br />

PAPI<br />

PAR<br />

precise and accurate positioning device<br />

precision approach path indicator<br />

precision approach radar<br />

PARTNER Partnership for Air Transportation Noise and<br />

Emissions Reduction<br />

PAT process action team<br />

PATS portable avionics test solution<br />

PAU passenger address unit<br />

PAVES programmable audio video enter tainment<br />

system<br />

PAWES performance assessment and workload<br />

evaluation<br />

PAX passenger<br />

PBD place bearing/distance (waypoint)<br />

PBID post burn-in data<br />

PBN performance-based navigation<br />

PBL performance-based logistics<br />

PBX public/private branch exchange<br />

PC personal computer<br />

PC printed circuit<br />

PCA physical configuration audit<br />

PCB printed circuit board<br />

PCC pilot controller communication<br />

PCD panoramic cockpit display<br />

PCI peripheral component interface<br />

(32-bit local bus)<br />

PCI protocol control information<br />

PCM pulse code modulation<br />

PCMIA Personal Computer Memory Card<br />

Interface Association<br />

PCO protocol converter unit<br />

PCU passenger control unit<br />

PCU personal control unit<br />

PCU power control unit<br />

PCU program coordination office<br />

PD profile descent<br />

PDB performance data base<br />

PDC pre-departure clearance<br />

PDCU panel data concentrator unit<br />

PDD package design document<br />

PDDI product definition data interface<br />

PDF primary display function<br />

PDL program design language<br />

PDM predefined controller text message<br />

PDM project development manager<br />

PDN public data network<br />

PDOP position dilution of precision<br />

PDR preliminary design review<br />

PDS persistent data storage<br />

PDS primary display system<br />

PDU protocol data unit<br />

PE precision engagement<br />

PECT peer entity contact table<br />

PED portable electronic device<br />

PEO C3T Army Program Executive Office Command,<br />

Control and Commu nications Tactical<br />

PER packed encoding rule<br />

PERT program evaluation and review technique<br />

PETAL preliminary Eurcontrol test of air/ground<br />

data link<br />

PF pilot flying<br />

PF power factor<br />

pFAST passive final approach spacing tool<br />

PFC passenger facility charge<br />

PFC primary flight computer<br />

PFCS primary flight control system<br />

PFD primary flight display<br />

28 Avionics Magazine December 2010 www.avtoday.com/av

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