... down 4.For 17-24'' LCD monitor 5.Manual,remote,RS232/485 ctrl Conference System Motorized LCD Lift / LCD Monitor Lift INTRODUCTIONMonitor lift is a ... Monitor lift can lift up/down separately, grouply or entirely to reveal/hide the LCD monitors.4.Five buttons on the panel used ... for controlling to up, down, pause, backward and forward.5.Monitor lift ...