ETHIO4I4O-2I is a multifunctional module with 4-channel analog inputs, 4 analog outputs-channel, 4-channel digital inputs. It provides various programmable analog inputs (+/- 500 mV, +/- 1 V, +/- 5V, +/- 10V, +/- 20 mA, 0 ~ 20 ~ 4 mA and 20 mA) and analog outputs (+/- 5V, +/- 10 V, 0 ~ 20 ~ 4 mA and 20 mA). Each analog input has allowed to set up a proper range of 240 Vrms with high voltage protection. Each analog input / output can be programmed to accept the current or voltage as an input / output depending on the location of the corresponding jumper.