Electrical Engineering Abbreviations
"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"

'Pa' to 'Pl', 'Pm' to 'Pq', 'Pr' to 'Pz'

PR - pulse rate
PRBS - Pseudo Random Binary Sequence [PRBS Definition]
PRF - pulse-repetition frequency
PRI - primary rate interface
PRM - pulse-rate modulation
PRN - Pseudo Random Noise
PROM - programmable read-only memory [PROM IC Manufacturers]
PRR - pulse repetition rate
PRSL - primary area switch locator
PS - permanent signal
PSB - Packet Switching Backplane, Parallel System Bus
PSCB - Programmable Skew Clock Buffer
PSE - Power Sourcing Equipment [PoE]
psi - pounds [force] per square inch
PSK - phase-shift keying
PSM - Phase Shift Modulation
PSN - public switched network
PSoC - Programmable System-on-Chip
PSOP - Plastic Small-Outline Package [PSOP description]
PSRR - Power Supply Rejection Ratio
p-static - precipitation static
PSTN - public switched telephone network
PTF - patch and test facility
PTFE - PolyTetraFluoroEthylene
PTH - plated through hole
PTM - pulse-time modulation
PTMC - PCI Telcom Mezzanine Card [PTMC Description]
PTT - postal, telephone, and telegraph
PTT - push-to-talk [Voice communication operation]
PTTC - paper tape transmission code
PTTI - precise time and time interval
PTZ - pan, tilt, zoom
PU - power unit
PUT - Programmable Unijunction Transistor [Manufacturers]
PVC - polyvinyl chloride [insulation], permanent virtual circuit
pW - picowatt
PW - Pulse Width [PW definitions]
PWB - Printer Wiring Board [Printed Circuit Card] [PWB Terms]
PWC - Pulse Width Coded
PWM - pulse-width modulation
pWp - picowatt, psophometrically weighted
pWp0 - picowatts, relative to a 0TLP
PWTN - Paper White Twisted Nematic [Display Manufacturers]
pX - peak envelope power [in dB]
PX - peak envelope power, private exchange
PXI - PCI eXtensions for Instrumentation [PXI Description]
pY - mean power [in dB]
PY - mean power [in watts]
pZ - carrier power [in dB]
PZ - carrier power [in watts]
PC motherboard

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