A method for transmitting system configuration information about uplink multiplexing of a 16m mobile station and a 16e MS is disclosed. The workstation generally includes an assembly tray having an assembly board and a frame. When the light beam intercepts inclusions or other defects at least some of it is scattered, and leaves the panel. In certain embodiments, arm links may be coupled to the frame. The wear pad is substantially worn away during the test period, so it does not affect subsequent operation of the drive.