SmartMod Remote IO is a Modbus-RTU based system designed to fill-out the IO complement for applications utilizing XLe, LX, or any other OCS/RCS family Controller. As many as 31 SmartMod I/O modules may be daisy chained on a single RS-485 link. SmartMod I/O is DIN-rail mounted, (+/-10VDC), and features 2000vac optical isolation. 4 channel RTD Inputs (Pt-100, Ni-100, Pt-1000, Ni-1000) or Resistance Inputs (0-2000ohm). 0.1 degree Celsius resolution, 2000vac isolation (ch-RS485 & ch-power).