Interface characteristics of J1939 to J1708 cable

Interface characteristics of J1939 to J1708 cable

The interface of J1939 to J1708 cable has the following characteristics:

Different pin configurations: J1939 typically uses 9-pin connectors, such as Deutsch 9-pin plugs, whose pin definitions include power, ground, CAN-H, CAN_L, and other signal pins, used to connect devices in the J1939 network, such as vehicle engine control units, transmission control units, etc. J1708 generally uses a 6-pin connector to connect with devices or networks based on the J1708 protocol.

Adaptation to different protocols: J1939 is a communication protocol based on the CAN bus, with a high data transmission rate, suitable for vehicle electronic systems that require large amounts of data transmission and real-time control. J1708 has a relatively low data transmission rate and is mainly used for communication between vehicle electronic devices that do not require high data transmission speed. The interface of J1939 to J1708 cable enables physical connection and signal conversion between devices of these two different protocols, enabling them to communicate with each other.

Equipped with electrical isolation function: In order to prevent electrical interference and fault propagation between different networks, the interface of J1939 to J1708 cable usually adopts electrical isolation technology, such as photoelectric isolation or magneto electric isolation. Through isolation, it can ensure that the J1939 network and J1708 network are electrically independent of each other, improving the stability and reliability of the system.

Good anti-interference performance: Interfaces usually adopt shielding measures, such as wrapping a shielding layer around the outer layer of the cable and setting grounding pins on the connector to reduce the impact of external electromagnetic interference on data transmission. This is crucial for ensuring accurate data transmission in complex electromagnetic environments such as vehicles.

The mechanical structure is sturdy and durable: Considering factors such as vibration, impact, and wear in the vehicle environment, the interface of the J1939 to J1708 cable is designed to be sturdy and durable in terms of mechanical structure. Connectors are usually made of high-quality materials with good wear resistance and corrosion resistance, which can meet the requirements of long-term vehicle operation.