SAE J 1939-13-2016 Off-Board Diagnostic Connector.pdf

1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref

2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2016 SAE InternationalAll rights reserved. No part of this publi

3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out

4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visitHTTP:/STANDARDS.SAE.ORG/J1939/13_201610SURFACE VEHICLERECOMMENDED PRACTICEJ1939-13 OCT2016Issued 1999-07Revised 2016-10Superseding

5、 J1939-13 OCT2011Off-Board Diagnostic ConnectorRATIONALEThis revision adds reference to SAE J1939-16 baud rate detection when a diagnostic tool is designed to support either 250kbps or 500 kbps vehicle networks. KbKbFOREWORDThe SAE J1939 communications network is defined using a collection of indivi

6、dual SAE J1939 documents based upon the layers of the Open System Interconnect (OSI) model for computer communications architecture. The SAE J1939-13 document defines the diagnostic connectors for off-board connection to the SAE J1939 communications network.The SAE J1939 communications network is a

7、high speed ISO 11898-1 CAN based communications network that supportsreal-time closed loop control functions, simple information exchanges, and diagnostic data exchanges between Electronic Control Units (ECUs) physically distributed throughout the vehicle. The SAE J1939 communications network is dev

8、eloped for use in heavy-duty environments and suitable for horizontallyintegrated vehicle industries. The SAE J1939 communications network is applicable for light-duty, medium-duty, and heavy-duty vehicles used on-road or off-road, and for appropriate stationary applications which use vehicle derive

9、d components (e.g., generator sets). Vehicles of interest include, but are not limited to, on-highway and off-highway trucks and their trailers,construction equipment, and agricultural equipment and implements. The physical layer aspects of SAE J1939 reflect its design goal for use in heavy-duty env

10、ironments. Horizontally integrated vehicles involve the integration of different combinations of loose package components, such as engines and transmissions, that are sourced from many different component suppliers. The SAE J1939 common communication architecture strives to offer an open interconnec

11、t system that allows the ECUs associated with different component manufacturers to communicate with each other.SAE INTERNATIONAL J1939-13 OCT2016 Page 2 of 17TABLE OF CONTENTS1. SCOPE. 22. REFERENCES. 32.1 Applicable Documents . 32.1.1 SAE Publications 32.1.2 ISO Publications. 33. OFF-BOARD DIAGNOST

12、IC CONNECTOR 33.1 General Requirements. 33.1.1 Mounting 33.1.2 Serviceability 53.2 Connector Performance Requirements . 53.2.1 Connect/Disconnect. 53.2.2 Environmental Requirements. 63.3 Physical Requirements 63.4 Connector Color . 63.5 Circuit Assignments and Pin Usage Requirements . 63.5.1 Type 1

13、Connector Circuit Assignments 63.5.2 Type 2 Connector Circuit Assignments 73.5.3 Pin Usage Requirements . 73.6 Connector Mechanical Requirements 94. NOTES. 174.1 Revision Indicator. 17Figure 1 Mated envelope 4Figure 2 Recommended cylindrical access envelope 5Figure 3 Flange mount diagnostic receptac

14、le connector Type 1 (black or grey) . 10Figure 4 Flange mount diagnostic receptacle connector Type 2 (green) 10Figure 5 In-line diagnostic receptacle connector Type 1 (black or grey) . 11Figure 6 In-line diagnostic receptacle connector Type 2 (green). 11Figure 7 Diagnostic plug connector Type 1 (bla

15、ck or grey) . 12Figure 8 Diagnostic plug connector Type 2 (green). 12Figure 9 Friction-locking plug connector Type 1 (black or grey) 13Figure 10 Friction-locking plug connector Type 2 (green) . 13Figure 11 Interface details Type 1 (black or grey) 14Figure 12 Interface details Type 2 (green) . 15Figu

16、re 13 Mating combinations and keying 16Table 1 Circuit assignments for Type 1 connector 6Table 2 Circuit assignments for Type 2 connector 7Table 3 Type 1 and Type 2 vehicle connector - pin usage description 8Table 4 Type 1 and Type 2 tool connector - pin usage description 91. SCOPESAE J1939-13 speci

17、fies the diagnostic connectors used for off-board connection to a vehicles SAE J1939 communication links. The defined diagnostic connectors support connection to the twisted shielded pair media (SAE J1939-11), the unshielded twisted pair (SAE J1939-15), the twisted pair of (SAE J1939-14), as well as

18、 the twisted unshielded quad media (ISO 11783-2). SAE INTERNATIONAL J1939-13 OCT2016 Page 3 of 172. REFERENCESGeneral information regarding this series of documents is found in SAE J1939.2.1 Applicable DocumentsThe following publications form a part of this specification to the extent specified here

19、in. Unless otherwise indicated, the latest issue of SAE publications shall apply.2.1.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.SAE J1708 Serial Data Co

20、mmunications Between Microcomputer Systems in Heavy-Duty Vehicle ApplicationsSAE J1939-11 Physical Layer, 250 kbps, Twisted Shielded PairSAE J1939-14 Physical Layer, 500 kbps SAE J1939-15 Physical Layer, 250 kbps, Un-Shielded Twisted Pair (UTP)SAE J1939-16 Automatic Baud Rate Detection ProcessSAE J2

21、030 Heavy-Duty Electrical Connector Performance StandardSAE J2202 Heavy-Duty Wiring Systems for On-Highway Trucks2.1.2 ISO PublicationsCopies of these documents are available online at http:/webstore.ansi.org/ISO 11783-2 Tractors and machinery for agriculture and forestrySerial control and communica

22、tions data networkPhysical layerISO 11898 Road vehiclesInterchange of digital informationController area network (CAN) for high speed communication3. OFF-BOARD DIAGNOSTIC CONNECTORThis section describes the Off-Board Diagnostic connector used on the vehicle to get access to the vehicle communication

23、 links.3.1 General Requirements3.1.1 MountingThe connector shall be mounted inside the cab in a location that is easily accessible according to the guidelines as follows.However, applications subject to OBD requirements must comply with the applicable regulatory requirements.a. For on road heavy tru

24、cks, the connector should be mounted on the driver side and if possible, accessible from the ground next to the cab.b. For busses, the connector should be located within reach of the operators seat. For rear engine busses, an additional connector may be mounted in the engine compartment that will al

25、low access from the ground next to the bus.SAE INTERNATIONAL J1939-13 OCT2016 Page 4 of 17c. For construction and agricultural equipment, it is recommended that the connector for the tractor bus be located behind the operators seat or under the dash at the operators knees. This connector must be lab

26、eled as the diagnostic connector. A diagnostic connector may be located elsewhere, in addition to a connector at the recommended location.d. The cable stub length for the diagnostic connector is specified in the governing document (e.g., SAE J1939-11, SAE J1939-14, SAE J1939-15, and ISO 11783-2).An

27、envelope of a mated connector (Figure 1) and the recommended cylindrical space for mating a connector (Figure 2) are shown as recommendations to help the truck builders.Figure 1 - Mated envelopeSAE INTERNATIONAL J1939-13 OCT2016 Page 5 of 17Figure 2 - Recommended cylindrical access envelope3.1.2 Ser

28、viceabilityThe connector shall be serviceable allowing field replacements of contacts and seals.3.2 Connector Performance Requirements3.2.1 Connect/Disconnecta. The connector shall comply with SAE J2030 or SAE J2202 or both except:1. The mating force shall be a maximum of 40 lbf 175 N.2. The retenti

29、on force after 1000 mating cycles shall be greater than 15 lbf 65 N.3. The number of connect/disconnect cycles shall be a minimum of 1000. b. The receptacle shall support/provide positive and friction-locking mechanism versions. It shall provide alignment before contact engagement to ensure proper e

30、ngagement of the connector. The connector shall be capable of engagement with one hand.c. The connector shall have easily identified keying arrangement by sight and touch.SAE INTERNATIONAL J1939-13 OCT2016 Page 6 of 173.2.2 Environmental RequirementsThe connector shall be available in both sealed an

31、d unsealed versions. A dust cap shall be available. For Environmental Requirements the connector shall meet the test requirements of SAE J2030 or SAE J2202 or both.3.3 Physical Requirementsa. The pins/sockets shall be sized commensurate with 2.00, 1.00, 0.80, and 0.50 mm conductors (corresponding to

32、 14, 16, 18, and 20 AWG). The size of the mating end of the contact is 16 AWG, regardless of wire size.b. CAUTION: Appropriate conductor seals are necessary to ensure the sealing integrity of the connector.c. The connector shall have nine pins designated as pins A, B, C, D, E, F, G, H, and J.d. For

33、information regarding cable termination, including the shield, reference SAE J1939-11, Appendix B.3.4 Connector ColorThe Type 1 connectors shall be black or grey.The Type 2 connectors shall be green. The color green for Type 2 connectors is recommended to be between the RGBrange of Red = 0 to 32, Gr

34、een = 100 to 255, and Blue = 0 to 323.5 Circuit Assignments and Pin Usage RequirementsThis section identifies the pin locations and assignments. The pin assignment of the individual connectors shall utilize pins C, D and, in some cases, E to satisfy the OBD requirements for the Scan Tool interface w

35、hen On-board Diagnostics (OBD) is a regulatory requirement.3.5.1 Type 1 Connector Circuit AssignmentsThe circuit assignments for the nine pins of the Type 1 connecter are listed in Table 1. The designations of the individual signal wires are CAN_H and CAN_L. For SAE J1939-11, a third connection for

36、the termination of the shield is denoted by CAN_SHLD. For SAE J1939-15 and ISO 11783-2, this same third connection is not connected. In addition to the designations of the CAN media wires, the designations of the SAE J1708 physical media wires, power and ground are: SAE J1708 (+), SAE J1708 (), Batt

37、ery (+) and Battery (). There are two pins designated for proprietary vehicle OEM use.Table 1 - Circuit assignments for Type 1 connectorPin Circuit AssignmentA Battery ()B Battery (+) Unswitched - with Unconditioned 10 A fuseC CAN_H Tractor Bus (250 kbps for both vehicle and tool)D CAN_L Tractor Bus

38、 (250 kbps for both vehicle and tool)E CAN_SHLD (for SAE J1939-11) or No Connection (for ISO 11783-2 or SAE J1939-15)F SAE J1708 (+)G SAE J1708 ()H Proprietary OEM Use or Implement Bus CAN_HJ Proprietary OEM Use or Implement Bus CAN_LSAE INTERNATIONAL J1939-13 OCT2016 Page 7 of 173.5.2 Type 2 Connec

39、tor Circuit AssignmentsThe circuit assignments for the nine pins of the Type 2 connector are listed in Table 2. The designations of the individual signal wires are CAN_H and CAN_L. For SAE J1939-11, a third connection for the termination of the shield is denoted by CAN_SHLD. For SAE J1939-15 and ISO

40、 11783-2, this same third connection is not connected. For SAE J1939-14 this same third connection is optional. In addition to the designations of the CAN media wires, the designations of the power and ground are: Battery (+) and Battery (). The Vehicle side networks on pins F and G are limited to S

41、AE J1708 and CAN 1 Mbps or lower.Tool Manufacturers may multiplex pins F and G, if used by the tool. Multiplexing pins F and G is necessary to allow support of SAE J1708 or CAN protocol functionality on those pins. Table 2 - Circuit assignments for Type 2 connectorPin Circuit AssignmentA Battery ()B

42、 Battery (+) Unswitched - with Unconditioned 10 A fuseC CAN_H Tractor Bus (500 kbps for vehicle, 250 kbps/500 kbps for tool with Type 1 and Type 2 support. See note 1.)D CAN_L Tractor Bus (500 kbps for vehicle, 250 kbps/500 kbps for tool with Type 1 and Type 2 support. See note 1.)E CAN_SHLD (for SA

43、E J1939-11) or No Connection (for ISO 11783-2 or SAE J1939-15)CAN_SHLD is optional with SAE J1939-14F SAE J1708 (+) or CAN_H 1 Mbps or lower See notes 2 and 3G SAE J1708 (-) or CAN_L 1 Mbps or lower See notes 2 and 3H Proprietary OEM Use or Implement Bus CAN_HJ Proprietary OEM Use or Implement Bus C

44、AN_LxNOTE 1: When a diagnostic tool is designed to support either 250 kbps or 500 kbps vehicle networks, then the diagnostic tool or associated communications adapter shall minimize the potential for error frames when connecting to the vehicle. The connection method described by SAE J1939-16 describ

45、es means that intend to minimize error frames in ways consistent with SAE J1939 networks.xNOTE 2: Tool Manufacturers may multiplex pins F and G, if used by the tool. Multiplexing pins F and G is necessary to allow support of SAE J1708 or CAN protocol functionality on those pins. The networks on pins

46、 F and G are limited to SAE J1708 and CAN 1 Mbps or lower.xNOTE 3: The Vehicle side networks on pins F and G are limited to SAE J1708 and CAN 1 Mbps or lower.3.5.3 Pin Usage RequirementsTable 3 and Table 4 identify the circuits that are required for the connector at the tool and the receptacle conne

47、ctor in the vehicle. Table 3 and Table 4 help to understand the required circuits at each point in the circuit from the connector on the tool, through the tool to vehicle harness, and to the connector on the vehicle. See Table 3 and Table 4 for Type 1 and Type 2 Pin Usage Descriptions.The harness fr

48、om the vehicle to the tool may populate all circuits so that Type 1 and Type 2 connector support is possible. SAE INTERNATIONAL J1939-13 OCT2016 Page 8 of 17Table 3 - Type 1 and Type 2 vehicle connector - pin usage descriptionPin Type 1 Connector Type 2 ConnectorPin Function Vehicle Requirements Pin

49、 Function Vehicle RequirementsA Battery () Required Same as Type 1 RequiredB Battery (+) Unswitched - with Unconditioned 10 A fuseRequired Same as Type 1 RequiredC CAN_H Tractor Bus (250 kbps)Only SAE J1939 250 kbps Physical Layer (SAE J1939-11 or SAE J1939-15)CAN_H Tractor Bus(500 kbps)Only SAE J1939 500 kbps Physical Layer (SAE J1939-14)D CAN_L Tractor Bus(250 kbps)Only SAE J1939 250 kbps Physical Layer (SAE J1