The BIM-553A-8 is a dual-redundant MIL-STD-1553 bus monitor module for use in Curtiss-Wright’s EDAU/CDAU-2000 data acquisition system products. The module supports either direct or transformer coupling under user program control. High time, low time, and micro timestamping are provided on a per-message basis. All incoming 1553 messages are temporarily buffered on the module and can be selected by the user for transmission in the PCM output format as “Class I PCM” (standard fixed-position), and as “Class II PCM”, and for transmission through a CMP-112 module as high-speed composite data (per IRIG 106, Chapter 8).