It is the electrohydraulic powerpack that supplies the hydraulic power for lifting the door. Because of the weight of the door, only the FIDELITY system can lift it. It can be a Consolle for one only door with “dead man” semiautomatic, automatic setting. The command also manage the fire retardant logic, it automatically closes the door in case of fire alarm or in case of lack of mains power supply. During the closure the opening is watched by the safety photocells that stop the closing also in case of lack of feeding until the back up battery is loaded.