The metal locking tie includes a tie body and a bi-level head. The coupler is configured to receive communication signals from a transceiver and transmit the signals to a targeted transponder in a transponder operating region. The GDM initializes itself according to a second HTML page and a third HTML page. In various embodiments, a left button, pad, or feature is directly opposite and in line with a right button, pad, or feature. According to the invention, the screw is fixedly mounted on the comb for axial translation therewith and capable of rotation relative to the comb about the axis of the socket, the terminal block including two columns that prevent the rotation of the comb about the axis and in which helical notches are formed that define a portion at least of the nut.