The 30001212 from EKS is a Shielded Fiber Optic Converter with Fiber Length 1 m, Fiber Optic Range 200 m, Input Voltage 0 to 10 V (Analog), 12 to 24 V (Digital), Output Voltage Level 0 to 10 V (Analog), 12 to 24 V (Digital), Supply Voltage 12 to 30 V. More details for 30001212 can be seen below.