SAE J1939/15_201405 PDF | Request Standard
Historical

SAE J1939/15_201405

Physical Layer, 250 Kbps, Un-Shielded Twisted Pair (UTP)

Standard by SAE International, 2014-05-29

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About This Item

This document describes a physical layer utilizing Unshielded Twisted Pair (UTP) cable with extended stub lengths for flexibility in ECU placement and network topology. Also, connectors are not specified. CAN controllers are now available which support the newly introduced CAN Flexible Data Rate Frame format (known as “CAN FD”). These controllers, when used on SAE J1939-15 networks, must be restricted to use only the Classical Frame format compliant to ISO 11989-1 (2003). These SAE Recommended Practices 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. Document is being revised to allow for additional stubs beyond the previous limit of 10 nodes. Scope is revised to exclude the use of flexible data rate messages as described in the CAN FD extension.
SKU: afc9382e2940

  • Publication Date: 2014-05-29
  • Standard Status: historical
  • Publisher: SAE International
  • Document Type: Ground Vehicle Standard
  • Subject: Electronic control units, Electromagnetic compatibility, Construction vehicles and equipment, Vehicle integration, Emissions control, Integrated circuits, Exterior lighting, Data exchange,
  • Official SAE: Doi link

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