SAE J1850-1994
CLASS B DATA COMMUNICATIONS NETWORK INTERFACE

Standard No.

SAE J1850-1994

Release Date

1994

Published By

SAE - SAE International

Status

Be replaced 1995-01

Replace By

SAE J1850-1995

Latest

SAE J1850-2022

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 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). 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.

SAE J1850-1994 history

• 2022 SAE J1850-2022 Class B Data Communications Network Interface
• 1970 SAE J1850-2015 Class B Data Communications Network Interface
• 2006 SAE J1850-2006 Class B Data Communication Network Interface
• 2001 SAE J1850-2001 Class B Data Communications Network Interface
• 1998 SAE J1850-1998 Class B Data Communications Network Interface
• 1996 SAE J1850-1996 Class B Data Communications Network Interface
• 1995 SAE J1850-1995 Class B Data Communications Network Interface@ Standard
• 1994 SAE J1850-1994 CLASS B DATA COMMUNICATIONS NETWORK INTERFACE
• 1991 SAE J1850-1991 Class B Data Communications Network Interface
• 1990 SAE J1850-1990 Class B Data Communications Network Interface
• 1988 SAE J1850-1988 Class B Data Communication Network Interface