Operational data collected from a communication system, such as a DSL system, may include exclusionary data andor indicative data that can be analyzed to determine the type of communication device, such as a DSL modem, that generated the operational data. A camera server controls a motorized gimbal which determines the viewing angles of a set of cameras according to signals from a client computer which is equipped with an eye movement tracking system. The ceramic film has a dielectric constant below 2. Moreover, the techniques disclosed include determining a time-out value based on one or more local resources of a server, wherein the time-out value corresponds to a length of time the media stream can be paused. Power flow and counter-flow between the sectors is controlled by controlling the DC links.