What is the compatibility of J1939 to J1708 cable

What is the compatibility of J1939 to J1708 cable

The compatibility of J1939 to J1708 cable is mainly reflected in the following aspects:

At the protocol level: J1939 protocol is based on the CAN bus, while J1708 is an SAE standard based on RS-485. J1939 extends the J1708 and J1587 standards and considers compatibility with existing systems in its design. It can achieve compatibility with J1708 through specific conversion mechanisms, allowing devices based on J1939 to communicate with devices based on J1708.

Equipment level: Suitable for various heavy vehicles and related equipment, including agricultural vehicles, commercial vehicles, heavy machinery, etc. These devices use both J1939 protocol and J1708 protocol. The J1939 to J1708 cable can establish connections between devices of different protocols to achieve communication.

Interface level: It usually has standardized interfaces, such as the 9-pin interface of J1939 and the 6-pin interface of J1708, which can be matched and connected with the interfaces of corresponding devices. The commonly used J1939 to J1708 cables in the market generally provide multiple types of interfaces to meet the connection requirements of different devices and ensure compatibility of physical connections.

However, the compatibility of J1939 to J1708 cables may also be affected by factors such as cable quality, length, signal interference, and equipment compatibility. In practical applications, it is necessary to choose cables with reliable quality and install and use them reasonably according to specific application scenarios and equipment requirements to ensure compatibility and communication stability.