What is the anti-interference performance of right angle J1939 splitter Y cable

What is the anti-interference performance of right angle J1939 splitter Y cable

The right angle J1939 splitter Y cable has good anti-interference performance, mainly reflected in the following aspects:

Differential signal transmission: J1939 protocol is based on CAN bus and adopts differential signal transmission method. In this way, the two signal lines transmit signals with equal amplitude and opposite polarity. At the receiving end, the original signal is restored by comparing the difference between the signals of two lines. Due to the similar impact of external interference on the two wires, the difference is not affected by interference and can effectively resist electromagnetic interference and noise interference.

Shielding layer design: Generally, the right angle J1939 splitter Y cable will have a shielding layer. The shielding layer is usually made of materials such as metal woven mesh or metal foil, which can isolate the signal lines inside the cable from the external electromagnetic environment, prevent external electromagnetic waves from entering the cable, and also prevent the electromagnetic waves generated by internal signals from leaking to the outside, thereby reducing the impact of electromagnetic interference.

Bus characteristics: The CAN bus adopts bit priority recognition and non-destructive bit timing mechanism. When multiple devices are simultaneously sending data, high priority messages can be prioritized for transmission, ensuring timely and accurate transmission of important data even in the presence of interference, enhancing communication reliability and anti-interference capabilities.

Good grounding design: Proper grounding is crucial for anti-interference. When designing and installing the Y cable of the right angle J1939 splitter, good grounding measures are usually considered. The shielding layer of the cable and related equipment are reliably grounded to form an equipotential distribution, thereby further reducing the impact of electromagnetic interference.