The apparatus includes a first passive signal repeater and a second passive signal repeater, operable to respond to the wireless data signal and to first and second wireless transceivers, respectively. A mounting device is configured to traverse a structure within the building, and to receive the first and second passive signal repeaters. The mounting device has a transfer path, which is operable to transfer the wireless data received at the first passive signal repeater to the second passive signal repeater, and to transfer the wireless data signal at the second passive signal repeater to the first passive signal repeater. When the mounting device traverses the structure, and the first and second signal repeaters are arranged on the mounting device in such a manner that the transfer path is operating, a wireless signal path traversing the structure is created between the first wireless transceiver and the second wireless transceiver.