EXP8DIAI Expansion Card
The four expansion slots of the RDU501 main unit support hot-swap connection of EXP8COM card, EXP8DIAI card, EXP8DOAO card and EXP2DI6DO card. EXP8COM card (optional).
The EXP8DIAI card provides eight digital or analog input interfaces (digital and analog adaptive) and supports digital/analog inputs.