Function and purpose of DB15 to 9 pin J1939 and 6 pin J1708 splitter Y cables

Function and purpose of DB15 to 9 pin J1939 and 6 pin J1708 splitter Y cables

DB15 to 9 pin J1939 and 6 pin J1708 splitter Y cables are professional cables designed specifically for vehicle diagnosis and communication systems. The following analysis will be conducted from the perspective of functional use and other aspects:

Splitting function: This Y-shaped cable divides the DB15 interface into two branches, 9-pin J1939 and 6-pin J1708, allowing for the simultaneous connection of two different vehicle communication protocols.

Protocol support:

J1939: CAN bus communication widely used in heavy-duty trucks, construction machinery and other equipment, supporting high-speed data transmission.

J1708: Mainly used for low-speed data communication of old trucks and buses, commonly used for fault diagnosis and ECU programming.

Application scenario: Suitable for vehicle diagnostic equipment that requires simultaneous access to J1939 and J1708 protocols, such as multifunctional diagnostic instruments, data recorders, etc.