The performance and anti-interference ability of J1939 cable

The performance and anti-interference ability of J1939 cable 

In the complex electromagnetic environment of commercial vehicles and heavy equipment, the anti-interference ability of J1939 cable is an important manifestation of its performance.

The shielded twisted pair structure used in J1939 cable is the key to its anti-interference ability. The shielding layer can effectively block the interference of external electromagnetic fields, shielding interference signals outside the cable and reducing the impact on internal signals. The special twisting method of twisted pair can further reduce electromagnetic coupling interference, cancel out the interference signals on the two wires, and improve the anti-interference ability of the signal.

In addition to the physical structure of the cable itself, a reasonable grounding design can also enhance its anti-interference ability. Good grounding can introduce interference signals into the ground, avoid accumulation in cables and equipment, and reduce interference with communication signals. In the J1939 network, it should be ensured that the shielding layer of the cable is reliably connected to the grounding terminal of the equipment, forming a complete grounding circuit.

In order to improve the anti-interference ability of J1939 cables, it is also necessary to avoid parallel wiring of cables in close proximity to strong electromagnetic sources, such as high-voltage cables, high-power motors, etc. If it cannot be avoided, the distance between the two should be increased or shielding isolation measures should be taken. By comprehensively applying these methods, the anti-interference ability of J1939 cables can be effectively improved, ensuring the stability and reliability of communication.