The EPI2339-0022 IO-Link box has 16 digital channels, each of which can optionally be operated as an input or as an output. A filter constant of 3.0?ms is available for the inputs. The outputs are short-circuit proof and protected against inverse polarity. They handle load currents of up to 0.5?A each, although the total current is limited to 4?A. The state of each signal is indicated by means of light emitting diodes. The signals are connected via M12 screw type connectors.