The MBCT-553 is a MIL-STD-1553 Bus Controller (BC) Module for use in Curtiss-Wright’s MEDAU-2000 or MCDAU-2000 series products. As a BC, the MBCT-553 initiates all commands on the bus based on a preloaded schedule. Messages are temporarily buffered and are available for transmission in the PCM output format as “Class I PCM” (standard fixed-position), or can be monitored through the host stack’s RS-232 programming port. The module performs word/message validation and extensive Built In Test (BIT), the results of which are available over the 1553 bus by the bus controller, through the host stack’s PCM output format, or via the host stack’s RS-232 programming port.