The basic module consists of a two-line LCD display and 8 buttons. Each button is assigned a red function indicator (LED). Inside the MFA 10, there is a buzzer installed, and two switching outputs are led out at the central connector. The basic module of the MFA 10 contains the intelligence to process input signals and control the analog modules. The operation of the MFA 10 is configurable via software. The MFA 10 basic module can process 4 dynamic transducers and 7 analog transducers as input signals and control 2 analog modules. The MFA 10 is designed for operation on 12V and 24V electrical systems. The instrument lighting can be switched on via terminal 58 (light switch). When the lights are on, the connected analog modules are automatically illuminated. In addition, the button cap symbols and the display of the basic module are backlit.