What are the components of the 9 pin J1939 CAN bus cable

In this article, we will delve into the composition and application of the 9 pin J1939 CAN bus cable.

The 9pin J1939 CAN bus cable is mainly used for CAN communication in vehicle networks, meeting the physical layer requirements specified in the J1939 protocol. It is mainly used in vehicle communication systems in industries such as automobiles, ships, and heavy industry machinery to achieve real-time data transmission and control between various components of the vehicle.

The 9pin J1939 CAN bus cable mainly consists of the following parts:

Cable: Adopting a twisted pair structure to reduce electromagnetic interference and improve the stability of data transmission. The wire core is generally made by twisting multiple strands of fine copper wire, which has good conductivity and mechanical strength.

Plug and socket: The plug and socket use a 9-pin D-type interface specified in the J1939 protocol to ensure reliable connection between the cable and the device. Plugs and sockets usually have a foolproof design to prevent incorrect insertion.

Sheath: The outer layer of a cable is covered with a sheath to protect the core from external mechanical damage and corrosion. The sheath material is generally made of plastic materials with excellent wear resistance, cold resistance, oil resistance, flame retardancy, and other properties.