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SAE J1850

(R) Class B Data Communications Network Interface

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Organization: SAE
Publication Date: 1 October 2015
Status: active
Page Count: 53
scope:

This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all Onand OffRoad Land-Based Vehicles. It defines a minimum set of data communication requirements such that the resulting network is cost effective for simple applications and flexible enough to use in complex applications. Taken in total, the requirements contained in this document specify a data communications network that satisfies the needs of automotive manufacturers.

This specification describes two specific implementations of the network, based on media/Physical Layer differences. One Physical Layer is optimized for a data rate of 10.4 Kbps while the other Physical Layer is optimized for a data rate of 41.6 Kbps (see Appendix A for a checklist of application-specific features). The Physical Layer parameters are specified as they would be detected on the network media, not within any particular module or integrated circuit implementation.

Although devices may be constructed that can be configured to operate in either of the two primary implementations defined herein, it is expected that most manufacturers will focus specifically on either the 10.4 Kbps implementation or the 41.6 Kbps implementation depending on their specific application and corporate philosophy toward network usage. However, low-volume users of network-interface devices are expected to find it more effective to use a generic interface capable of handling either of the primary implementations specified in this document.

This SAE document is under the control and maintenance of the Vehicle Networks for Multiplexing and Data Communications (Multiplex) Committee. This committee will periodically review and update this document as needs dictate.

Document History

SAE J1850
October 1, 2015
(R) Class B Data Communications Network Interface
This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all Onand OffRoad Land-Based Vehicles. It defines a minimum set of data communication...
May 1, 2001
Class B Data Communications Network Interface
This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all On- and Off-Road Land-Based Vehicles. It defines a minimum set of data...
May 1, 2001
Class B Data Communications Network Interface
This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all On- and Off-Road Land-Based Vehicles. It defines a minimum set of data...
March 1, 1998
Class B Data Communications Network Interface
1. Scope--This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all On- and Off-Road Land-Based Vehicles. It defines a minimum set of data...
November 1, 1996
(R) Class B Data Communications Network Interface
A description is not available for this item.
July 1, 1995
Class B Data Communications Network Interface, Standard
A description is not available for this item.
July 1, 1995
Class B Data Communications Network Interface
A description is not available for this item.
May 2, 1994
CLASS B DATA COMMUNICATIONS NETWORK INTERFACE
This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all On- and Off-Road Land-Based Vehicles. It defines a minimum set of data...
February 16, 1994
(R) CLASS B DATA COMMUNICATIONS NETWORK INTERFACE
This SAE Standard establishes the requirements for a Class B Data Communication Network Interface applicable to all On- and Off-Road Land-Based Vehicles. It defines a minimum set of data...
August 19, 1991
(R) CLASS B DATA COMMUNICATION NETWORK INTERFACE
This SAE Recommended Practice establishes the requirements for a Class B Data Communication Network Interface applicable to all On and Off-Road Land Based Vehicles. It defines a minimum set of data...
July 23, 1990
(R) CLASS B DATA COMMUNICATION NETWORK INTERFACE
This SAE Recommended Practice establishes the requirements for a Class B Data Communications Network interface applicable to all on and off-road land based vehicles. This document defines a minimum...
November 1, 1988
Class B Data Communication Network Interface
The objective of this document is to define a minimum set of physical and data link layer requirements applicable to a vehicle data communication network that is cost effective for simple...

References

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