Terminating resistor
A = Master node
B = Slave node
C = Transmitter/receiver
LIN is terminated to the battery voltage on each node via a pull-up resistance
The master node is terminated with 1 kΩ and the slave nodes with 30 kΩ.
The termination resistance forms a parallel circuit and the resistance to the battery voltage depends on the number of connected nodes. The resistance to ground should be infinite or at least extremely large if no communications are in progress.