Siemens FDCIO222 Input/Output Module (4 Inputs and 4 Outputs / 250 VAC)

The Siemens FDCIO222 is an addressable multi-channel input/output module featuring 4 monitored inputs and 4 mains-rated relay outputs for high-voltage fire system switching. Operating on FDnet/C-NET loops, this high-performance module allows fire panels to monitor external status contacts while directly controlling 250 VAC mains equipment such as ventilation fans, smoke dampers, door holders, and elevator controls. Each of its 4 independent inputs is continuously supervised for open and short-circuit faults, while the 4 potential-free relay outputs support high switching capacities up to 250 VAC / 5A. Built with an integral line separator to maintain loop integrity, automatic soft-addressing, and onboard status LEDs, the FDCIO222 delivers complete monitoring and heavy-duty control capabilities in a single unit.