CAN-FD Physical Layer, 500 kbps/2 Mbps

Scope:

This document defines a physical layer having a higher bandwidth capacity than the classic physical layers defined for SAE J1939-14 by using flexible data rates. CAN controllers are now available which support the Flexible Data Rate Frame Format as defined in ISO 11898-1:2015. These controllers and compatible high speed transceivers are required for use on SAE J1939-17 networks. This SAE Recommended Practice is 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.

Rationale:

This document is developed to support the use of SAE J1939 networks utilizing a base baud rate of 500K bits per second and a flexible data rate of 2M bits per second. This is done to increase bandwidth for ever increasing needs to have faster data transfer and support for more data (bandwidth).

AKA:
  • SAE J 1939-17
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