In accordance with another aspect of the invention, there is provided a switching controller apparatus for use in a system comprised of {HEAD ~ a plurality} of {TAIL ~ switching controllers} 
of
In accordance with another aspect of the invention , there is provided a switching controller apparatus for use in a system comprised of { HEAD ~ a plurality } of { TAIL ~ switching controllers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL