The present invention provides systems and methods of cross-domain access control in which a client node sends a request for a resource to a resource server. Both the cover and the body are constructed from materials which are not readily fusion weldable. A redundancy check value is calculated for each of the subsets, and the redundancy check value is compared to a database file which corresponds to each subset. The common connection of switching devices provides an input to an inductor, which, in conjunction with a capacitor removes out-of-band components before presentation of the output to one side of load.