Multibus Loop Module, Communication Highway to Communication Processor I/F for all OIS 6638230A1.
The Bailey Controls IIMLM01 (often listed as IIMLM-01) is an Infi 90 Multibus Loop Module originally manufactured by Bailey Controls (now part of ABB). It is a legacy interface circuit board used in older distributed control systems (DCS) to facilitate high-speed communication between field devices, operator workstations (OIS), and the processor.