The Bently Nevada 3500/20 Rack Interface Module (RIM) serves as the primary gateway for the 3500 Machinery Protection System, facilitating critical communication between the rack backplane and external software tools like System 1® and 3500 Rack Configuration Software. Engineered for high-integrity turbomachinery monitoring, the 3500/20 module supports both RS232/RS422 serial and Ethernet (10/100Base-T) protocols via the associated I/O modules. It performs essential system-level functions, including rack identification, configuration storage, and the distribution of the system clock for event sequencing. For high-availability architectures, the 3500/20 can be deployed in a TMR (Triple Modular Redundant) configuration or paired with redundant power supplies to ensure continuous data acquisition. Whether you are sourcing a standard 3500/20-01 or the enhanced 3500/22M (TDI) version, our inventory provides genuine, tested modules to maintain the diagnostic link of your critical rotating assets.