Grouping pages of an electronic document into a series and displaying a title area for that series. The assembly includes a plurality of force transmitting members which transmit force between a piston and a base member. A solid disc-shaped rotor defines a plurality of salient rotor poles, and is rotatably positioned opposite the support member to establish an axial air gap between the rotor and stator poles. The strippable sheath is removable by pulling on a drawstring to remove it which permits expansion of the graft. The antenna can also be connected the optional device using the same cable that shows the communication status information, such as transmitreceive status, signal strength, power, etc, in hazardous area.