Grass Valley NewsroomSuite v.5.5 - Manual (Page 50)

Chapter 4 Connecting External Controllers to NewsEdit
46 Digital News Production
2. For the Jog/Shuttle Controller, select the correct COM port from the 422
Controller Comm Port drop-down list; for the other controllers, select the
correct COM port from the USB Controller Comm Port drop-down list.
The COM port needs to match the number of the USB port where you
connected the controller.
3. Click OK .
You can now use the controller to control features on NewsEdit.