A casing for a HVAC system in an automobile for moving air comprises a plurality of sections, each of which is molded of plastic material. The coating includes at least one multitextured \u03b1-Al2O3 layer with a thickness between 0. A spatial optical interleaver disposed receives the first-beam-source output beams and the second-beam-source output beams. Command signals that are for accessing the internet are transmitted and received as 10 MHz Ethernet data packets on the distributed hub. Various other features such as data caching and security filtering are provided in accordance with such a system. The BPs use the information to assign each mobile subscriber station that is registered with the arrangement to one of the MPs.