A positive displacement wellbore servicing pump having a power end and a fluid end is disclosed. The information retrieval and processing component includes search query means for conducting a search of the information network to obtain references to the information relevant to a search query. A reinforcement device is provided in the securing device for preventing removal of the securing device from the vehicle. As a consequence, power that would have been drawn by the power factor correction circuitry is conserved when the power factor correction circuitry is disabled. One objective is to provide devices for multiplexing and demultiplexing optical signals which can be produced economically and that require little space for greater suitability in microelectronics.