Abstract: Mitigating a user interface display function of a modular energy system includes receiving formatted video data at a video data converter circuit, providing differential video signaling data to the display from the video data converter circuit, providing a copy of the differential video signaling data to a processor, and determining that the differential video signaling data is changing over time. Mitigating erroneous outputs from an isolated interface includes receiving a state of a first switch of a first footswitch coupled to a first comparator and a reference voltage coupled to the first comparator, receiving the state of the first switch coupled to the first duplicate comparator and the reference voltage coupled to the first duplicate comparator, comparing the output of the first comparator with the output of the first duplicate comparator, and determining activation or deactivation of a surgical instrument coupled to the controller based on the comparison.

Abstract: A truck cap lifting assembly includes a first elongated member and a second elongated member each having a first end, a second end, a top side, a bottom side, and a pair of lateral side edges. A lifting assembly is attached to each of the first and second elongated members such that the first and second elongated members may be selectively lifted or lowered. The lifting assembly supports the first and second elongated members such that the elongated members are spaced from each other and are orientated parallel to each other. Wherein a truck cap may be positioned on the elongated members and selectively raised or lowered by the lifting assembly.