Systems and methods for cable deployment of downhole equipment, wherein the conductors of a power cable bear the load of the downhole equipment and jewelry, as well as the cable itself. The wireless router supports user profiles andor device profiles that respectively enable user level andor device level access control. Negative feedback control sections between the power supply sections and the load supply electrical power from the corresponding power supply sections to the load and execute negative feedback control of a value of a voltage applied to the load for matching the voltage value and the target voltage waveform. A liquid crystal layer is disposed between the first and second substrates. In this manner the seal is subjected only to compression and decompression, with the movable rear wall or top lid in each case being free move open or closed without interference with the seals.