There are two buttons, one on each side of the display. The buttons can be programmed to perform specific functions.
The programmable keys have no effect on bar code scanners tethered to the device.
When there is no integrated scanner installed, both buttons default to Enter buttons (with the exception of IBM 5250 terminal emulation devices – in this case, the left button is labeled and functions as Field Exit).
Note: The left programmable Scan key is the Field Exit key when the MX3Plus is an IBM 5250 / TN5250 compatible device.
To edit the button parameters, select Start > Settings > Control Panel > KeyPad. Change the parameter values and tap OK to save the changes.
Field Exit Key Function (IBM 5250/TN5250 Only)
The Field Exit key is used to exit an input field. If the field is an Auto Enter field, the auto transmit function is activated. This key function is present on the IBM 5250/TN5250 specific keypad only.
Scan Buttons and the SCNR LED
The SCNR LED, located above the keypad, illuminates during an integrated bar code scanner function. It is affected by internal scanner algorithms.
•Red – scanning.
•Green – good scan.
•Unlit – laser scanner is inactive.
The Scan buttons have no effect on tethered bar code scanners connected to a serial port. Tethered scanners read bar code scans only when the trigger on the tethered scanner is pressed. Pressing the trigger on the tethered scanner has no effect on the MX3Plus Scan buttons.