A cover is adapted to form part of a housing of a laser scanning unit. The method may receive pushed information from an associate, including, e. The present invention is applicable to data transmission in a network. The transistors provide additional termination impedance to the differential IO pins. During the remaining time slots: the primary pilot signal is transmitted from the primary antenna, and the secondary pilot signal is transmitted from the secondary antenna, but at different times; and data meant for the legacy mobile stations is not transmitted.