An adapter to provide moveable configurations of securing structures such as fastener apertures or throughbores for fastening a surgical instrument to an anatomical structure, such as a bone. The tone injection module is operable, in a first mode, to produce a tone having a carrier frequency that is substantially similar to a carrier frequency of an inbound wireless signal. The transition may include renumbering all of the IP addresses. The towel dispenser can be mounted to an underside of a cabinet.