The present invention provides a digital circuit comprising an inverter gate delay line and a delay adjustment circuit. A HVAC controller communicates with a battery pack controller to assure that air flow from the passenger cabin through the battery pack, and either out to atmosphere or returned to the passenger cabin, is coordinated to obtain desirable passenger cabin heatingcooling and battery cooling. If a TonePola signal is a signal indicating a power-saving mode, a control circuit of the first downconverter circuit causes both a local oscillator and a frequency converter to be in a non-operating state, controlling a bias circuit such that power is supplied to the first amplifier LNA. As the packets are sent, the sender counter is incremented. Specifically, the present invention is directed toward the use of laser alloying steel or aluminum alloys with a mark that provides protection against wear and corrosion and greater permanency. The conforming interface layer is thermally decomposed, adhering and permanently attaching the conducting polymer plug with the corresponding metal bump.