A distributed operating system for controlling network elements in a data or telecommunication network in which the operating system controls a data and communication network consisting of various underlying physical base networks. A hot runner plate is mounted on the fixed platen and water manifolds are mounted on each carriage assembly. The foam panels and facing panels are attached together with a plurality of coilies or rigid spacers, held together with simple screws to create a complete wall system. Connecting a filter network with an inductor and a capacitor to the output of the comparator and deriving the feedback signal from the filter network, results in an output of the comparator which is a DC output with a superimposed ripple.