Three Control Input 1, 2 and 3 can be used either to switch between several pre-set XRII fields or to control linearly the G1, G2 and G3 electrode voltages of the XRII.

• 三个控制输入端1,2和3能在一些预先设定的X线影像增强器视野之间转换并且线性地控制X线影像增强器G1，G2和G3极的电压。