YES. The CBL 2 and LabPro interfaces do support digital output and can be used with the Digital Control Unit (DCU-BTD). You can download sample Texas Instruments calculator programs for the DCU from the link below.

See our App and Program Transfer guidebook for step-by-step instructions to load apps and programs onto your supported TI graphing calculator. (Which TI calculators work with the CBL 2 or LabPro?)

In addition to digital output, LabPro has analog output, which is used by connecting the standard voltage probe to CH4. Details of how to use the analog output lines are in the LabPro Technical Reference Manual or from How do I use the function generator and analog output feature of LabPro?.