SinuTrain - SINUMERIK Training Software - Technical Information:

The training keyboards with the machine-identical SinuTrain training keyboard for turning and milling, trainees can learn how to control and program machines on a PC in a learning process which is very close to working under real conditions.
Each key that the user is already familiar with from the control unit is replicated on the training keyboard. This makes it easier to use SinuTrain and ShopMill/ ShopTurn.
Programming can then be carried out on the actual real machine without any follow-up training.
The keyboard is simply connected to the PC via a USB interface. Additional hardware or an external power supply is not necessary.  
The advantages:
Realistic training with a training keyboard identical to the one on the machine
Easy connection to PC via USB interface.