Safety Information Module (SIM): Notes

In the network of satellites, the Safety Information Module SIM is the central unit. The SIM has the following functions:

Supply operating power to the satellites and provide an energy reserve in the event of failure of the voltage supply during an accident.
The SIM is the connection master (using the Intelligent Star Coupler) and system master of the byteflight fiber-optic network.
Triggering an automatic emergency call in the event of a collision.

The SIM is located behind the glovebox.

Fig 1: Safety Information Module (SIM) Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

Circuitry overview of the SIM