A system for the storage and retrieval of data files includes a data disk, a configuration disk and a controller. The voltage level translator includes first and second input signal transistors, first and second output signal transistors, and includes a signal stabilization circuit andor an enable circuit. The conveyor may be a continuous motion conveyor belt including cleats for holding the magnetic media or a reciprocal media conveyor including magnetic storage media bin. In more specific embodiments, a call admission control mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. The dried and optionally also cured film has a layer thickness ranging from 0. The positioning device is attached to the housing and extends at least partially into the interior region of the module through the fiber receiving aperture.