In-line Data Converter, 18-30VDC, Analog Voltage to Io-link, 4PIN Qd - Compatible with Banner Part Number: S15C-U-KQ. ThIS device takes a standard analog current input (e.g., (4) mA to (20) mA) and converts it into digital data that can be read by an IO-Link master. It allows older, analog-based sensors to be incorporated into a digital IO-Link process without needing to replace the entire sensor.