A universal connector that facilitates quick assembly and disassembly of substantially the same andor different member trusses at substantially the same andor different angles, one from the other, and which may vary from installation to installation. In accordance with one or more embodiments, an apparatus includes a charge pump that generates an output using a reference voltage, a low dropout regulator circuit, current-limit and a voltage-limit circuit. The modems may implement one or more of a group of X-DSL protocols including: G. The third party vendor can then, through a variety of channels, contact the consumer with information specific to the item, giving the consumer ample opportunity to make an informed purchasing decision. As a result, it is possible to prevent the leakage of discharge air and to reduce the pollution and malfunction of the liftinglowering unit. The downstream module is operatively coupled to the shared bus.