In an embodiment, a medium voltage drive system includes a transformer, multiple power cubes each coupled to the transformer, and a manifold assembly. The photodetectors may have a needle-like, a column-like, or a ridge-like structure. During a second time period after the first time period, a first portion of a second communication may be transmitted in a second communication mode in the serial wireless transmission stream. A messenger process transmits the new scripts to the appropriate remote nodes where respective agent processes respond to automatically access the appropriate data and to automatically execute the specified program. The logic device also locks the gun when the gun user is intoxicated or acting in an irrational manner. The method of the invention includes following step of selectively performing a one-dimensional median algorithm at least twice and a slope algorithm at least once.