There are several higher-layer protocols and profiles, which use the principles of the SAE J1939 specifications. J1939-based higher-layer protocols are mainly used in diesel power-train applications and in in-vehicle networks for trucks and buses (e. g. J1939-71/81). Other application fields include: agriculture and forestry machines (Isobus/ISO 11783), truck/trailer connection (ISO 11992), military vehicles (MiLCAN A), fleet management system (FMS), re-creational vehicles (CiA 501/502), and marine navigation (NMEA2000).
All these sets of specifications describe the protocols for transferring dedicated parameter groups and segmented data as well as the parameter groups and the parameters. The base mechanisms are described in the J1939 set of specifications developed and maintained by the nonprofit SAE (Society of Automotive Engineers) organization.

CiA’s website provides information on J1939-based solutions dedicated for system designers respectively for device designers.

System Design

Device Design

• J1939 message format
• FMS
• MiLCAN
• NMEA 2000
• ISO 11992 series
• ISO 11783 series
• SAE J1939 set of profiles

J1939 Product Guide