JogBox
Better photos coming soon.
Use a standard DB9-M to DB9-F extension cable to plug the JogBox in the the BeagleBox.
Selects Axis X, Y, Z, and A. The B and C selections can be used for alternate purposes.
Select axis step rate (programmable dependent):
typically:
1 - 0.1 Inch
2 - 0.01 Inch
3 - 0.001 Inch
4 - 0.0001 Inch

Bottom View for DB9 connector:

Add the following Cable to connect the JogBox with the BeagleBox
10-AUG-22