GY-50U Barcode Scanner User Manual# System Settings Restore Factory Defaults Custom Defaults Device Feature Settings Aiming Light Illumination Mode Illumination Brightness Buzzer Trigger Settings Scan Mode Same Barcode Read Mode Decode Timeout Sleep Time Presentation Mode Sensitivity Decode Data Verification Interface Settings Output Mode USB HID Keyboard USB Virtual COM Port serial Serial Baud Rate Serial Data Bits Serial Parity Serial Stop Bits Keyboard Settings International Keyboard QR Keyboard Output UTF-8 QR Keyboard Output Letter Case Conversion Caps Lock GS Character Conversion Function Key Mapping Data Editing Output format Barcode Information Prefix Suffix Code ID Terminator Barcode Settings Supported Symbologies General Symbology Switches 1D Symbology Settings 2D and Composite Code Settings Decode Length Settings Appendix Decimal Digits ASCII Code Table Function Keys