A goods handling’ apparatus for a cargo storage and transport vehicle includes a movable cargo platform continuous with a portion of cargo enclosure floor, when the cargo platform is in an upper position. It is proposed that the data stream is adapted to be sent between the first and second part by means of a wide area network. An optical modulation means selectively outputs lights, in which the lights are incident upon the optical modulation means from the outside, to two output leads, respectively, according to chip bits of the time domain code or the complementary code. Thus the present invention provides simplifies the assembly and enhances the usability of the wall mount as well as provides an easily adjustable tilt angle of the wall mount.