Mechanical Dimensions and mechanical guidelines for the HIL4 and HIL6 Calibration Cards. The HIL4 and HIL6 Calibration Cards are designed to be directly plugged into a single row of DIN41612 connectors of a HIL4 and HIL6 series HIL emulator, respectively. Dimensions are given in Figure 1 and Figure 2. Figure 1. HIL4 Calibration Card dimensions [mm] Figure 2. HIL6 Calibration Card dimensions [mm]