SURFACE J1939-81
VEHICLE
RECOMMENDED
PRACTICE
NETWORK MANAGEMENT
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Copyright 2002 Society of Automotive Engineers, Inc.
All rights reserved. Printed in U.S.A.
Issued 1997-07
Revised 2003-05
Superseding J1939-81 JUL1997
Forward
This series of SAE Recommended Practices has been developed by the Truck and Bus Control and
Communications Network Subcommittee of the Truck and Bus Electrical and Electronics Committee. The
objectives of the subcommittee are to develop information reports, recommended practices, and standards
concerned with the requirements, design, and usage of ECUs that transmit electronic signals and control
information among vehicle components. The usage of these recommended practices is not limited to truck
and bus applications. Other applications may be accommodated with immediate support being provided for
construction and agricultural equipment, and stationary power systems.
These documents are intended as a guide toward standard practice and are subject to change to keep pace
with experience and technical advances.
Network management in the SAE J1939 network is concerned with the management of source addresses
and the association of those addresses with an actual function and with the detection and reporting of
network related errors. Due to the nature of management of source addresses, network management also
specifies initialization processes, requirements for reaction to brief power outages and minimum
requirements for ECUs on the network.
TABLE OF CONTENTS
1. Scope .......................................................................................................................................4
2. References...............................................................................................................................4
2.1 Applicable Publications............................................................................................................4
2.1.1 SAE Publications .........................................................................................................4
3 Definitions ...............................................................................................................................4
3.1 Terminology used in network management ...........................................................................4
3.2 Controller Application (CA).....................................................................................................4
3.3 Address Configuration and Capability.....................................................................................4
3.3.1 Single Address Capable CA ..............................................................................................5
3.3.1.1 Non-Configurable Address CA ............................................................................................5
3.3.1.2 Service Configurable Address CA .......................................................................................5
3.3.1.3 Command Configurable Address CA ...................................................................................5
3.3.1.4 Self-Configurable Address CA ............................................................................................5
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