A connector includes a shield that supports a housing. The refractory metal cooperates with the hardfacing material to act as a wetting agent that draws the hardfacing material into intimate contact with the body of the displacement plug. Control is distributed from a central high voltage circuit, rather than using a number of large expensive central high voltage circuits to enable reducing circuit size and cost. The orchestrator may prepare each device within the distributed system for updating, then cause the updates to be performed via the plugins. The wireless communications system is configured to transmit wireless signals. In one embodiment a channel occupancy map and channel selection algorithm are utilized to establish the predetermined set of channels.