J1939/21: Data Link Layer - SAE International
Browse Standards J1939/21_200104
Historical REVISED 2001-04-01

Data Link Layer J1939/21_200104

The SAE J1939 documents are intended for light, medium, and heavy-duty vehicles used 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 these documents is to provide an open interconnect system for electronic systems. It is the intention of these documents to allow Electronic Control Units to communicate with each other by providing a standard architecture.

This particular document, SAE J1939-21, describes the data link layer using the CAN protocol with 29-bit Identifiers. For SAE J1939 no alternative data link layers are permitted.

J1939/21_201603
2016-03-03
Latest
Revised
J1939/21_201504
2015-04-30
Historical
Revised
J1939/21_201012
2010-12-17
Historical
Revised
J1939/21_200612
2006-12-22
Historical
Revised
J1939/21_200104
2001-04-01
Historical
Revised
J1939/21_199807
1998-07-01
Historical
Revised
J1939/21_199407
1994-07-01
Historical
Issued

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