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SAE J1939-21 Data Link Layer
J1939/21 specifies the datalink layer for a J1939 network and is the only datalink layer published and supported for J1939. This specification is responsible for defining the bit encoding of 29-bit CAN identifiers.
Also included in this specification is the encoding for source address (SA), destination address (DA), priority (P), and parameter group number (PGN).
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J1939 Bootloader
J1939 Diagnostic Event Manager
J1939 Simulator
J1939 Adapters
J1939 to USB Adapter
J1939 to RS-232 Adapter
J1939 Adapter FAQ
J1939 Software FAQ
J1939-0 Parent Document
SAE J1939-11 Physical Layer, 250 Kbps
SAE J1939-14 Physical Layer, 500 Kbps
SAE J1939-15 Reduced Physical Layer, 250 Kbps
SAE J1939-21 Data Link Layer
SAE J1939-71 Vehicle Application Layer
SAE J1939-73 Diagnostic Layer
SAE J1939-81 Network Management
SAE J1939-82 Compliance – Truck and Bus
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