![]() ![]() Network diagnostics: Network voltage in passive mode should be: close to Ubat. This resistor for sure is located in Master module if the network contains also Power-up devices (which ensure “awakening” of the car) – also these devices contain such resistors (to ensure normal performance of the network in the moment, when the car “wakes up”). Network power supply, marked with red – terminal resistors, which are placed in current modules. Receiver: simple comparator (input = inverted), output: open-collector transistor. In the picture: simplified schematics of LIN BUS device transmitter/receiver part. After receiving directions, current device replies with network reply message. Network operation: Master unit gives directions for current device to reply. network load: power-up resistors in Master and Power-up modules. ![]() communication via 1 wire (active = low).These are slow (and not very secure – signal lines are not doubled) serial interfaces, that’s why they are used to control peripheral functions and management of mechanisms. ![]()
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