Network structure: General

Fig 1: Identifying Local Interconnect Network (LIN) Structure

Courtesy of VOLVO CARS OF NORTH AMERICA.

A = Master node

B = Slave node

The network is made up of a number of control modules connected to each other via a communications wire. The control modules are voltage fed and ground individually and exchange information in an optional direction via the communication wiring.

In event of a failure on the communication wiring, the control modules will not be able to communicate with the other control modules located after the failure. However, the control modules located before the failure can still communicate.

On a LIN bus there is always one control module that is the main control module (a.k.a. master node). All other control modules on the same LIN bus are slave nodes.