Processing a circuit design for implementation on a target device includes, for a first driver that is a driver of a net having a plurality of loads, selecting a second driver that is a driver of the first driver. In the invention, the interface combines various signals received at inlets, which signals may be analog, digital, and optical, coming from two members, and produces a multiplexed optical signal for delivery to a member of the vehicle, such as a piece of equipment. The axial shaft is configured to receive electrical connections therethrough. The securing apparatus may include a locking member that includes a protruded portion that extends at least partially beneath the securing apparatus and at least one mechanical element.