Path Information Unit Power Interrupt Unit Payload Interface Unit Project Implementation Unit PCM Interface Unit PENTIUS Peripheral Interface Unit Power Interface Unit Process Interface Unit Passenger Information Unit Percent Interstate Usage Percent of Interstate Usage Programmable Interface Unit Propeller Interface Unit Pyrotechnic Initiator Unit IATA code for Piura Airport, Piura, Pe… Package Interface Unit Particle Instrumentation Unit Patient Isolation Unit Percentage of Interstate Usage Performance and Innovation Unit Personnel identification unit Photographic Intelligence Unit Pi-bus Interface Unit Plasma Interface Unit Plug In Unit plug-in unit polymerase-inducing unit programmed instruction unit Protocol Interface Unit
Path Information Unit
Power Interrupt Unit