The PIB24L165 is a scalable driver board which, for an input of 0 to 10V (or 0 to 20mA), generates a proportional output current of 0 to 165mA. By shorting out jumper JP1 (shorting header not supplied), the control will be changed from 10V operation to 20mA operation, i.e. an input of 0 – 20mA will cause the output to correspondingly change from 0 to 165mA.