A shielded connector assembly having an electrical connector and a recharging connector portion. The controller is configured to identify, in real-time, the occurrence of a fall in progress of an individual from at least one of a standing state, a standing-to-seated transition, and a seated-to-standing transition. The illumination is optimized by determining an appropriate illumination mode based on diffraction orders of the reticle, and the autocorrelation of the projection optic. At least one client is connected to the network and in communication with the application controller. Also, the invention comprises a method of assembly and overhaul of a disk brake stack, utilizing disks having available wear portion of a first thickness, a second thickness, and a third thickness.