As described in the SAE J1939 document, there is a minimum of seven documents required to fully define an SAE J1939 network. This document, SAE J1939-15, describes a physical layer utilizing Unshielded Twisted Pair (UTP) cable. The SAE J1939 Recommended Practice documents are intended for light- and heavy-duty vehicles on- or off-road as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include but are not limited to: on- and off-highway trucks and their trailers; construction equipment; and agricultural equipment and implements.
The purpose of the J1939 documents is to provide an open interconnect system for electronic systems. It is the intention of these documents to allow electronic devices to communicate with each other by providing a standard architecture.
Rationale: Document is being revised to accommodate new OBD regulations which require a 5-meter stub for scan tool connection.
Included in: Vehicle Electrification Subscription Learn More
Electrical, Electronics, and AvionicsVehicle networkingTrucksBuses
Also known as: SAE J 1939/15
Save money while getting up-to-date access to the standards you need! Subscribe to the SAE J1939 Standards Collection on the Web and get one year of anytime access and automatic updates to the J1939 family of documents, plus all cross-referenced and selected related documents.
Subscribers can view annotate, and download all of SAE's content.
Learn More »