Working principle and advantages of J1939 splitter Y cable

Working principle and advantages of J1939 splitter Y cable

J1939 splitter Y cable is a special cable used for vehicle network communication. The following is the relevant introduction:

Structural characteristics

Connectors: Usually 9-pin connectors are used, with common types being Type 1 black and Type 2 green. Generally, there is one input port and two output ports in a Y-shaped structure, which realizes the splitting of one signal into two outputs.

Cable: The internal cable adopts a multi-core structure, including signal transmission lines and shielding layers. The transmission line is used to transmit signals specified in the J1939 protocol, and the shielding layer can reduce electromagnetic interference, ensuring the stability and reliability of signal transmission.

working principle

Based on the J1939 protocol, communication signals from one device or node in the vehicle network are distributed to two different devices or nodes without error through the internal circuit and structure of the splitter Y cable, enabling multiple devices to simultaneously access the same network for data exchange without interfering with each other's communication, and working together to complete various control and monitoring functions of the vehicle.

Application advantages

Expansion interface: Add more accessible ports to the vehicle electronic system, making it convenient to simultaneously connect multiple devices that comply with the J1939 protocol, such as engine control units, transmission control units, onboard diagnostic systems, GPS positioning devices, driving recorders, etc., without the need for large-scale modifications to the vehicle network.

Easy to maintain and upgrade: During vehicle maintenance, upkeep, or functional upgrades, the splitter Y cable can be easily connected to detection equipment or new electronic devices for fault diagnosis, software updates, and other operations, improving the maintainability and scalability of the vehicle's electronic system.

Improve reliability: Made with high-quality materials and processes, it has good electrical and mechanical properties, can adapt to complex electromagnetic environments and harsh working conditions inside vehicles, and ensure stable and reliable communication.