The configurable I/O modules provide universal inputs that support temperature, analog, resistance and binary in a single module. For applications not requiring universal inputs there are modules with discrete inputs that support contact closure and retentive pulse counting at 100Hz. Additional modules supply a mix of universal inputs and/or discrete with relay outputs and analog outputs. A single module supports BACnet MS/TP or Modbus RTU/ASCII with a simple dip switch selection. The modules are housed in a compact UL approved self-extinguishing plastic enclosure, rated for operation in -10 deg C to +50 deg C [14 deg F to 122 deg F] environments and DIN rail or panel mounted typically in a control enclosure. All modules use half-wave rectified low voltage power supply that allows for sharing of power with other 24 VAC/VDC devices.