Most manual optical systems will use Insight Metrology IM-USB or a similar scale interface. This may vary from one region to another. See install guide for Insight Metrology device here:
Insight Metrology - USB Interface.
Download HelpDeskFile and UI Layout for systems with the camera here:
HelpDeskFile_mm400_usb_camera.zip
mm400_usb_camera.xml
Download HelpDeskFile and UI Layout for systems without camera here:
HelpDeskFile_mm400_no_camera.zip
mm400_no_camera.xml