Input/output module – IOA REL 230V DO/BFI/NC/3.0A/EX – 2910422; VIP field termination assemblies (FTA) with input/output accessories (IOA) provide universal channel configuration for applications seeking to evolve from a traditional fixed I/O approach. Digital relay output, fused with blown fuse indication, NC contact, 230 V AC, 3 A rating.