An escalator includes a plurality of steps or panels, a chain for driving the steps or panels, at least one chain wheel around which the chain is deflected and wherein the chain, starting from the chain wheel, forms an upper strand and a lower strand. The component member includes a wiring portion having a predetermined pattern and an insulation film surrounding the wiring portion. Furthermore, a novel semiconductor device is provided. The fastening member may be crimped to secure both ends of the loop to the fastening member. The grounding bar has a plurality of grounding fingers electrically connecting the grounding contacts. Different support functions can be collected together in hierarchical andor networked relationships to suit various business models or other objectives.