The Multi Protocol carrier board series was developed to meet the needs of avionic testers for multi-protocol integrated, digital bus testing. Modules may be selected out of a growing list which currently includes MIL-STD-1553/1760, MMSI, H009, ARINC-429, ARINC-708/453, Serial (232/422/485), Discrete and CAN bus. Additionally, an IRIG B decoder implements a global time stamp relative to the IRIG B pulses. The need for higher density, different protocols, and multi-channel on one integrated test card has made the EXC-2000, EXC-4000 & EXC-8000 series very successful.