This Application Note is intended for users that are familiar with the SBS 1553 products that need to move to the Abaco Systems 1553 products. This document will describe the significant differences between these product families and explain how these differences apply to 1553 applications. This provides a top-level overview of the differences – detailed information can be found in the Abaco user’s manuals and example programs. This Application Note assumes a basic knowledge of 1553. For information on the MIL-STD-1553 protocol refer to the “MIL-STD-1553 Tutorial” document available from Abaco Systems. Additional information can also be found in MIL-HDBK-1553A.