What are the characteristics of J1939 9 Pin Pass Through Male/Female to DB15 male cable
J1939 9 pin Pass Through male/female to DB15 male cable is a special cable used in automotive electronic diagnosis and other fields. The following is its related information:
Structural characteristics
Two end interface: One end is a 9 pin male or female connector that complies with the J1939 standard, and the other end is a DB15 male connector. The J1939 9 pin interface is used to connect devices with the J1939 protocol, such as engine control units and onboard diagnostic systems for heavy-duty trucks; The DB15 male head can be connected to various diagnostic devices, computers, or other related instruments with DB15 female interfaces.
Internal cables: The cable contains multiple wires that are responsible for transmitting signals between J1939 devices and DB15 interface devices, such as power signals, data signals, etc., to achieve communication and data exchange between devices.
function
Protocol conversion: J1939 is a communication protocol used for commercial vehicles and non road mobile machinery, while the DB15 interface is more common in some general diagnostic devices or computers. This cable can achieve the conversion between J1939 protocol and DB15 interface supported protocols, enabling different types of devices to connect and communicate with each other, facilitating diagnosis, monitoring, and debugging of vehicles.
Data transmission: It can transmit data from the vehicle's electronic control unit (ECU) to the DB15 interface device through the J1939 interface, such as fault codes and vehicle operating parameters (such as vehicle speed, RPM, water temperature, etc.), for analysis and judgment by maintenance or technical personnel. At the same time, the commands or configuration information sent by the DB15 interface device can also be transmitted to the J1939 device of the vehicle to achieve control or adjustment of certain functions of the vehicle.
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