AAF box controls 4 intake systems connected via data bus, provides alternating current for battery charging, monitors the system and assigns identifications to the peripheral units. On the panel there are signals that indicate the presence of 230V mains, the proper CAN-BUS functioning and the power supply status of the central unit and remote peripheral batteries. Status and alarm warnings are indicated by LED lights and a buzzer. There are also central opening and closing buttons for all the units connected to the network and a reset button.
The reset button is essential for the system initialization after an alarm signal received from an MDE01/MDE04 control panel or from the fire protection system. On the electronic board, inside the case, there is a selector and a button for the peripheral units identification (ID).
The base unit is assigned the 0 number by default, while the other units must be assigned a sequential ID numbers from 1 to 4 during the programming phase.

AAF Advanced box can control up to 9 AIR FLOW PLUS units and has a signalling kit to report alarms.
Moreover, it reports possibly fault status to the fire control panel and activates other NSHEV control devices, both MDE01/MDE04. Finally, it controls active smoke and fire curtains or SMOKE OUT® devices.
It is possible to integrate a temperature sensor into each peripheral unit, thus allowing the opening of an individual device only when set threshold is exceeded. Temperatures may be different from device to device and can be remotely programmed by using MS1 monitoring kit (available upon request). The latter also allows the computer display information on system status: the set temperatures, local temperatures, battery voltages, the number of IDs connected, errors and faults on the central and peripheral units.