... the monitor by manual, remote or RS232, RS485 control; after use finished, lift down to keep the table tidy, and the ... ;7. RS232, RS485, manual and remote control;8. Lift up and down automatically;Three Control Modes1. Manual switchThe panel of the LCD ... rotation; Vertical rotation, Pause, Lift-up, Lift-down.2. Remote control3. RS232, RS485 controlYou can control the LCD monitor lifts working as ...