Description / Abstract:
SAE J1939-01 On-Highway Equipment Control and Communication
Network specifies the minimum set of SAE J1939 documents that
define the Truck and Bus Control and Communications Vehicle Network
as it applies to on-highway equipment. Vehicles covered include all
on-highway straight trucks and road trains. A road train consists
of one towing vehicle (tractor) and one or more towed vehicles
(trailers and dollies). Dolly axles within the road train are
considered to be towed vehicles.
Purpose
It is the intention of the SAE J1939 family of recommended
practices to allow electronic devices to communicate with each
other by providing a standard architecture. SAE J1939-01 describes
the particular set of SAE J1939 documents used to implement an open
interconnect system for electronic systems in a heavy-duty
on-highway vehicle.
Vehicles covered include on-highway straight trucks and
combination vehicles. A combination vehicle consists of one towing
vehicle (tractor), and one or more towed vehicle(s) (trailers and
dollies). Dolly axles within the combination vehicle are considered
to be towed vehicles.
Degrees of Openness
A network based upon this document is open to the degree that
any two devices which conform to SAE J1939-01 can be connected via
the network and communicate with each other without functional
interference. Devices that conform to different SAE J1939-0x
documents may not be capable of communicating directly with one
another and in some cases may cause degradation or complete
disruption of the entire network.