Power Supply

The SIM is supplied with voltage KL terminals 30 and ground from KL31. If the vehicle voltage is sufficient then a switching controller is supplied first, which supplies voltage to the intelligent Star Coupler and the power supply.

The second switching controller is supplied by KL 30 during operation and is controlled by the microprocessor via the cable SHDN 2. The capacitor is charged as of KL R.

The charging of the capacitor forms the emergency energy reserve. The capacitor voltage is 33V. (Energy Reserve in the E65 is 400v.)