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This series of SAE Recommended Practices was developed to provide an open architecture system for on-board electronic systems. It is the intention of these documents to allow electronic devices to communicate with each other by providing a standard architecture. This particular document describes the Network Interface and Cabling which defines the requirements needed for communicating between devices that are on different segments of the SAE J2496 Transport Area Network. While these recommended practices may be used in retrofitting older vehicles, the primary intent is for implementation in new bus procurements.

This series of SAE Recommended Practices was developed to provide an open architecture system for on-board electronic systems. It is the intention of these documents to allow electronic devices to communicate with each other by providing a standard architecture. This particular document describes the Network Interface and Cabling which defines the requirements needed for communicating between devices that are on different segments of the SAE J2496 Transport Area Network. While these recommended practices may be used in retrofitting older vehicles, the primary intent is for implementation in new bus procurements.

This series of SAE Recommended Practices was developed to provide an open architecture system for on-board electronic systems. It is the intention of these documents to allow electronic devices to communicate with each other by providing a standard architecture. This particular document describes the Network Interface and Cabling which defines the requirements needed for communicating between devices that are on different segments of the SAE J2496 Transport Area Network. While these recommended practices may be used in retrofitting older vehicles, the primary intent is for implementation in new bus procurements.

This SAE Recommended Practice provides a development or possibly interim production communication protocol between engine, transmission, ABS/traction control, and retarder systems until higher speed communication links are established.

This document defines a recommended practice for the format of messages and data that is of general value to modules on the data communications link. Included are field descriptions, size, scale, internal data representation, and position within a message. The recommended practice also describes guidelines for the frequency of and circumstances in which messages are transmitted. In order to promote compatibility among all aspects of electronic data used in heavy duty applications, it is the intention of the Data Format Subcommittee (in conjunction with other industry groups) to develop recommended message formats for: a) Vehicle and Component Information - This includes all information that pertains to the operation of the vehicle and its components (such as performance, maintenance and diagnostic data). b) Routing and Scheduling Information - Information related to the planned or actual route of the vehicle.