DC systems are those units that convert alternating current in continuous (rectifiers, chargers) or a direct current to alternating (inverters). DC systems can store energy in a battery. Able to obtain a continuous supply of DC or AC (via an ivnersor) without interruption.
When the rectifiers, chargers and investors are integrated into a single team, they constitute what is called a DC system, allowing both connect to AC power loads such as DC.
Furthermore, these DC systems have a DC control to manage all parameters and communication ports to communicate with the outside world, allowing inclusion within the DC system management software and perform remote management and allowing the state to be informed / alarms / events / actions of the unit.