Note Low energy transients can appear at the output terminals of your PXIe-4143 during certain situations, such as power-up, power-down, device driver loading, and self-calibration. Additionally in these situations, the output is pulled to ground through a 10 kΩ resistor.

The energy of the transients is typically less than 1 µJ, which is not enough to cause damage to most loads. However, some extremely sensitive devices could be affected. Additionally, the presence of the 10 kΩ pulldown to ground could pose a problem for some loads. If you suspect your load could be affected, NI recommends that you disconnect all power supplies and SMU connections while performing any of the above operations. To avoid transients caused by a power failure, consider employing an uninterruptible power supply system.