One embodiment of the present invention provides a system that facilitates dynamic allocation of upstream bandwidth in a passive optical network which includes a central node and at least one remote node. The fixed bus bar is connected to any of terminals. The obturator shaft and the obturator blade are adapted for relative rotational movement. The process then sends the carrier through a reflow oven which reflows solder on the PCBs so that the components become mechanically and electrically coupled to the PCBs.