In sliding side doors frequently used in commercial vehicles, the most important point is to carry electricity to the electronic systems to be used in the door. These systems can be sound system, central locking system and electric window opening-closing etc. (varies according to vehicle equipment).

In addition to carrying electricity to the systems on the door, it is also necessary to obtain status information from these systems and provide control when requested.

As the desired feature from the Sliding Door switch increases, the number of pins used in the switch that provide transmission also increases.