The ABB Bailey BRC-100 (P-HC-BRC-10000000) is a high-performance, rack-mounted Harmony Bridge Controller designed for the Symphony Harmony Infi 90 distributed control system. It bridges Harmony I/O blocks and rack I/O, featuring a 32-bit/32-MHz processor to manage process control. It is commonly used in industrial automation, such as in power plants, pulp/paper, and petrochemical industrie.