In a distributed system comprising a document server and a plurality of clients which are connected to the document server via a network, each of the plurality of clients transmits, to the document server, an original transaction with information indicative of at least one client which uses a document. A codeblock of a multiplexed datastream is decoded. A plurality of VAR dispatch devices are connected to the network and to the power grid. The first mating connector may be capable of being coupled to a first complementary mating connector to form a mechanical connection and an electrical connection.