A serial communication port

The utility model discloses a serial communication port, , including lift rack and remote control receiving ware, the bottom of lift rack is equipped with the projecting apparatus tray, the side of projecting apparatus tray is equipped with a plurality of align to grid's elevating platform support column, the top of projecting apparatus tray is equipped with the gallows adsorption column, the remote control receiving ware sets up in the top of elevating platform support column, one side of remote control receiving ware is equipped with working status indicator, working status indicator and remote control receiving ware signal connection, this kind of a serial communication port, have realized the automation that the angle modulation is gone up and down, have alleviateed teaching personnel's intensity of labour, have simplified the using -way of projecting apparatus, possess considerable economic benefits and energy -conserving benefit, and the implementation method are simple, easily promote, possess wide mar