Signal Output For RTI (Road Traffic Information) (Japan Only)
The road and traffic information system, RTI in Japan, uses directly connected input signals from the accessory electronic module (AEM) (4/78) for processing of information.
The accessory electronic module (AEM) sends four signals to the RTI-system. Two of the signals are display lighting and reverse gear signal to the navigation unit, and the third is a speed signal. The fourth signal is a relay control for voltage supply.
The brightness of the display lighting, vehicle speed signal, and the reverse gear signal comes from the central electronic module (CEM) (4/56) via the CAN-net.