Introduce the technical principle of J1939 splitter Y cable

Introduce the technical principle of J1939 splitter Y cable

The technical implementation of J1939 splitter Y cable originates from the deep optimization of CAN bus protocol. At the physical layer, the product adopts differential signal transmission technology and achieves electromagnetic interference resistance through twisted pair media, meeting the complex electromagnetic environment requirements of heavy vehicles. Its core innovation lies in combining the traditional Y-shaped branch structure with bus arbitration mechanism, which not only maintains the ability of multi node parallel communication, but also ensures real-time transmission of key data through priority message processing mechanism.

From a protocol perspective, this product is perfectly adapted to the parameter group (PG) transmission mechanism of J1939, supporting fine address allocation of 12 bit identifiers, and can simultaneously process multiple types of parameter group data such as engine status and vehicle power. The internally integrated signal amplification module solves the problem of signal attenuation caused by multiple branches, enabling the transmission distance to maintain a range of several hundred meters in complex networks. By collaborating with the J1939 network management protocol, online node diagnosis and fault location can be achieved, providing hardware support for the reliability of the vehicle's electronic system.

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