In one embodiment, a motor drive is provided that includes a control board and an option board coupled to the control board via a serial interface, wherein the option board includes a configurable data transfer rate. More particularly, the invention relates to compounds that are derivatives of 1-phenyl-2-pyridinyl alkyl alcohols, methods of preparing such compounds, compositions containing them and therapeutic use thereof. The recipient visits one of the plurality of merchants and at the visited merchant retrieves the document in the electronic form from the mail system to a computing device at the visited merchant.