Extreme emergency braking systems for brake-by-wire brake systems

An extreme emergency braking system including at least two brake modules, a pedal feel emulator in communication with at least one of the brake modules by way of a first communication line, an electric park brake switch assembly in communication with the brake modules by at least a second communication line, and an electric circuit adapted to supply at least a first voltage to a first one of the brake modules and a second voltage to a second one of the brake modules, the supplied voltages being indicative of a state of the switch assembly, wherein the first communication line is independent of the second communication line.