進(jìn)口發(fā)動(dòng)機QSX15執行器故障容易導致缸蓋活塞開(kāi)裂

美國康明斯進(jìn)口發(fā)動(dòng)機QSX15為工業(yè)用全電控發(fā)動(dòng)機，性能優(yōu)良，節能效果明顯；但使用中一定要注意保證燃油質(zhì)量，注意觀(guān)察發(fā)動(dòng)機煙色，聽(tīng)發(fā)動(dòng)機異常聲響；應為采取的燃油執行器和正時(shí)執行器是提供燃油的關(guān)鍵部件，出現磨損等故障不易檢查和發(fā)覺(jué)，沒(méi)有直接故障代碼指示，往往是造成惡性故障而容易忽視的環(huán)節。

  

COMMINS-QSX15 QSK23 QSK45 QSK60 QSK78系列發(fā)動(dòng)機ECM技術(shù)使用手冊

cummins 柴油機配件

ecm是柴油機的哪部分

qsx15康明斯發(fā)動(dòng)機的怎樣用電腦軟件查看故障歷史

電噴發(fā)動(dòng)機踩下油門(mén)就熄火  電噴的發(fā)電機是什么 原理

康明斯ISLe維修手冊

康明斯ISE油泵

那個(gè)公司有康明斯發(fā)動(dòng)機上的油壓傳感器

康明斯熱交換器芯及熱交換器總成

康明斯發(fā)動(dòng)機水溫感應塞

康明斯發(fā)動(dòng)機零件號

康明斯 調速器過(guò)熱 執行器發(fā)卡

康明斯發(fā)動(dòng)機水泵講解

康明斯 軌壓傳感器

東風(fēng)汽車(chē)康明斯電噴系統圖

第I節 - Quantum診斷

先進(jìn)的診斷技術(shù)

先進(jìn)的診斷技術(shù)可對Quantum發(fā)動(dòng)機進(jìn)行簡(jiǎn)單的維修和服務(wù)。故障或保養條件的診斷檢驗可通過(guò)機載或非機載系統進(jìn)行。

機載診斷

ECM具有大范圍檢測故障的能力

閃爍故障代碼

位于駕駛室儀表盤(pán)上的故障指示燈可指示警告/停機故障

保養指示燈

機載診斷

故障檢測

在設備自己工作期間，當鑰匙開(kāi)關(guān)處于ON位置時(shí)檢測故障。如果此時(shí)故障變?yōu)楝F行故障（當前檢測到），存儲器中就會(huì )記錄故障，同時(shí)記錄發(fā)動(dòng)機參數速錄數據。另外根據現行故障的嚴重程度，特定的故障可能會(huì )使警告指示燈（黃色）或停機指示燈（紅色）、保養指示燈或燃油含水（WIF）指示燈變亮。

閃爍故障代碼

可通過(guò)診斷開(kāi)關(guān)或油門(mén)踏板進(jìn)入故障代碼閃爍模式。要進(jìn)入故障代碼閃爍模式，鑰匙開(kāi)關(guān)必須處于ON（接通）位置并且發(fā)動(dòng)機停機。使用診斷開(kāi)關(guān)進(jìn)入該模式時(shí)，在診斷開(kāi)關(guān)轉到ON位置后，ECM將自動(dòng)閃爍第一個(gè)故障代碼。診斷增加/減少將向前或向后調整現行故障代碼。要使用油門(mén)踏板進(jìn)入故障代碼閃爍模式，必須循環(huán)踩下和釋放油門(mén)踏板，使油門(mén)開(kāi)度連續3次從0到100%。一旦進(jìn)入診斷模式，循環(huán)踩下和釋放油門(mén)踏板可順序向前達到現行故障代碼。下圖描述了通過(guò)停機指示燈指示的故障代碼閃爍方式的類(lèi)型。

故障指示燈

Quantum系統使用多達5個(gè)指示燈（每個(gè)指示燈具有兩種功能）：停機指示燈、警告指示燈、保養指示燈/發(fā)動(dòng)機保護指示燈（所有發(fā)動(dòng)機系列使用其中一個(gè)，而不是同時(shí)使用兩個(gè)）、等待起動(dòng)指示燈和燃油含水指示燈。如果鑰匙開(kāi)關(guān)轉到ON位置而診斷開(kāi)關(guān)保持斷開(kāi)，這些指示燈將會(huì )亮約2秒鐘然后熄滅，以證實(shí)指示燈正常工作和接線(xiàn)正確。參閱下面的插圖，這些指示燈全部變亮然后每次熄滅一個(gè)。

警告指示燈 – 用于所有Quantum發(fā)動(dòng)機 - 警告指示燈提供重要的操作員信息。要求操作員及時(shí)注意這些信息。  警告指示燈還用于描述診斷故障代碼。

停機指示燈 – 用于所有Quantum發(fā)動(dòng)機 - 停機指示燈提供緊急的操作員信息。這些信息要求操作者快速響應并采取正確措施。停機指示燈還用于閃爍診斷故障代碼。

發(fā)動(dòng)機保護指示燈 – 用于QSK19/45/60, QST30發(fā)動(dòng)機 - 當存在發(fā)動(dòng)機保護故障時(shí)，發(fā)動(dòng)機保護指示燈將變亮?？赏ㄟ^(guò)OEM配線(xiàn)配置系統，以便用紅色/停機指示燈指示發(fā)動(dòng)機保護故障。這是通過(guò)將紅色指示燈連接至ECM的紅色/停機指示燈輸入和發(fā)動(dòng)機保護指示燈輸入來(lái)實(shí)現的。如果發(fā)動(dòng)機保護指示燈信號用于控制其它功能，如車(chē)輛驅動(dòng)電路，該電路中必須接入一個(gè)二極管。

選裝 - 2指示燈布置方案- 用于QSK19/45/60發(fā)動(dòng)機 - 選裝的2-燈布置方案將取消發(fā)動(dòng)機保護（白色）指示燈。因此，操作員儀表盤(pán)上只有一個(gè)警告指示燈（黃色）和一個(gè)停機指示燈（紅色）。所有通過(guò)發(fā)動(dòng)機保護指示燈指示的故障將通過(guò)停機（紅色）指示燈來(lái)指示。這種改進(jìn)只會(huì )影響故障指示燈的線(xiàn)路布置，不會(huì )影響軟件或標定程序。參閱下面的線(xiàn)路圖。

第II節 - ECM串行通信

Quantum串行通信

本文件的目的是提供設備與Quantum控制器串行通信接口應用類(lèi)型有關(guān)的信息。本文件的內容分為兩大類(lèi)。

第一類(lèi)適用于制造設備的OEM，因此對他們來(lái)講，數據通信接口的安裝是關(guān)心的問(wèn)題。此類(lèi)內容提供了電纜、連接器信息以及列出了經(jīng)過(guò)康明斯測試與Quantum控制器兼容的數據通信裝置。第二類(lèi)收集了OEM和設計與Quantum控制器相連的數據通信接口的部件供應商使用的信息。這類(lèi)信息詳細描述了與信息支持、參數特征、網(wǎng)絡(luò )應用和診斷有關(guān)的內容。

導言

數據通信接口使得設備上的電子裝置彼此相互連接。有些典型功能共享傳感器數據，共享計算信息，允許子系統（如發(fā)動(dòng)機、變速箱等）之間的工作相互影響，子系統工作狀態(tài)通信。數據通信接口還可提供機載或非機載診斷工作模式。

Quantum控制器具有兩個(gè)獨立的串行通信端口。一個(gè)端口用于訪(fǎng)問(wèn)SAE J1939并與J1939-11兼容，另一個(gè)端口用于SAE J1587并與J1708兼容。Quantum控制器不支持SAE J1922。

SAE J1939數據通信裝置是一種高速網(wǎng)絡(luò )，用于在250K 波特下工作的設備。它能夠支持控制、信息共享、診斷、多路傳輸和專(zhuān)有通信。J1939（物理層）數據通信采用微分線(xiàn)路驅動(dòng)器電路，允許最長(cháng)的總線(xiàn)長(cháng)度為40米。在給定的時(shí)間內，網(wǎng)絡(luò )最多可提供30個(gè)節點(diǎn)連接。

SAE J1587是在9600波特的速度下工作的J1708基線(xiàn)網(wǎng)絡(luò )。它支持信息共享、診斷和專(zhuān)有通信。在給定的時(shí)間內，網(wǎng)絡(luò )最多可提供20個(gè)節點(diǎn)連接。

當設備鑰匙開(kāi)關(guān)轉到ON（接通）位置時(shí)，Quantum控制器上的J1939/J1587數據通信接口同時(shí)起作用。

適用的SAE文件

本文件與下面列出的SAE技術(shù)規范含有提供Quantum通信接口（J1939和J1587）與設備應用類(lèi)型相連的信息。

SAE 1939		推薦用于串行控制和通信網(wǎng)絡(luò )的常例（1997年4月）。它提供一個(gè)計劃的J1939-xx文件列表，還提供有關(guān)網(wǎng)絡(luò )的全套文件和基本操作的簡(jiǎn)單指導。
SAE J1939-11		物理層（1997年3月）。在250Kb/秒的速度下工作，線(xiàn)性總線(xiàn)帶有屏蔽雙絞線(xiàn)回路。
SAE J1939-12		物理層（工作草案為ISO 11783 中的第2部分，1997年5月）。在250Kb/秒的速度下工作，線(xiàn)性總線(xiàn)帶有四芯絞線(xiàn)。
SAE J1939-13		非機載診斷連接器（1997年1月），指定9-針Deutsch連接器為J1939, J1587和二級CAN網(wǎng)絡(luò )提供工具、無(wú)開(kāi)關(guān)電源和接地連接。
SAE J1939-21		數據通信層（1998年7月），指定CAN 2.0b作為使用的信息協(xié)議，同時(shí)還定義了J1939應用層的接口。
SAE J1939-71		車(chē)輛應用層（1996年5月和97年1月的附錄），定義了傳輸參數值解釋規則，允許接收裝置確定發(fā)送裝置能否提供與參數據組有關(guān)的所有參數，任何參數是否存在錯誤狀態(tài)，或信號是否有效。
SAE J1939-73		診斷應用層（1998年10月）- 診斷。定義在J1939布置方案上執行診斷需要的容量，以確定發(fā)生故障的子系統最少可維修的特性，如何發(fā)生故障，讀取和清除診斷故障代碼，診斷指示燈狀態(tài)的通信，以及提供維修工具監測的多種參數。
SAE J1939-81		網(wǎng)絡(luò )管理 （1996年11月）
SAE J1587		（1996年3月和97年1月的附錄） - 重型設備應用類(lèi)型微機系統之間的連接SAE/TMC電子數據交換。定義信息和數據的格式以及用于傳輸頻率和環(huán)境信息的指導方針。
SAE J1708		物理層（1993年10月）- 重型設備應用類(lèi)型微機系統之間的串行數據通信。

適用的康明斯文件

可在下列康明斯技術(shù)標準和文件中找到數據通信接口的其他信息：

接口技術(shù)規范：1377-9804 - 輸入和輸出的J1939多路傳輸。為通過(guò)J1939數據通信接口而不是通過(guò)分離的導線(xiàn)（巡航控制開(kāi)關(guān)輸入，指示燈輸出等）提供給發(fā)動(dòng)機或由發(fā)動(dòng)機提供的信息提供信號處理要求。

AEB 15.44 Quantum安裝建議文件

J1939安裝信息

本節提供了在設備上安裝J1939數據通信接口需要的信息。請參考AEB 15.44 - Quantum安裝建議中的詳細信息。

用于QSM11和QSX15的強制性EA（數據通信接口）選裝件

不適用于QSK 19

J1939

為在發(fā)動(dòng)機上安裝J1939數據通信接口，理解電纜布線(xiàn)和連接器的要求是很重要的。下一節提供了電纜布線(xiàn)和連接器的詳細信息。還提供了某些供應商的信息，以便采購電纜和連接器。

3.  電纜布線(xiàn)

主干線(xiàn)束 - 一種最大長(cháng)度為40米（約131英尺）的線(xiàn)性總線(xiàn)。在給定的時(shí)間內可連接至主干網(wǎng)的最大節點(diǎn)數（電子控制器）為30。注意，B和B MATE（配合件）（2按鍵型）是主干線(xiàn)束和終端連接器按鍵，B為插座，B MATE為插頭。

為了與J1939-11一致，主干線(xiàn)束為帶加蔽線(xiàn)的屏蔽雙絞線(xiàn)，并在每個(gè)網(wǎng)絡(luò )終端都需要被動(dòng)終端電阻。J1939-11布局典型用于汽車(chē)/公路應用類(lèi)型。請參考圖1。

為了與J1939-12一致，主干線(xiàn)束是帶加蔽線(xiàn)的四芯絞線(xiàn)，并在網(wǎng)絡(luò )的每端都需要主動(dòng)終端和偏置電路。物理層使得J1939-11無(wú)須屏蔽。物理層還采用收發(fā)機電路設計，允許J1939-11節點(diǎn)在同一網(wǎng)絡(luò )中作為J1939-12節點(diǎn)存在。

短線(xiàn) - 主干線(xiàn)束與每個(gè)節點(diǎn)（電子控制器）的連接稱(chēng)為短線(xiàn)，最長(cháng)為1米（約3.3英尺）。請參考圖1。

屏蔽 - 電氣連接的屏蔽是通過(guò)節點(diǎn)（電子控制器）的總線(xiàn)連接點(diǎn)和主總線(xiàn)的內部連線(xiàn)處的加蔽線(xiàn)來(lái)實(shí)現的。還應注意屏蔽只能在蓄電池負極的一處接地。盡管屏蔽不能覆蓋線(xiàn)性總線(xiàn)或短線(xiàn)連接器（閱讀下節中的詳細信息）的連接部位，它仍與下段屏蔽電纜建立電氣連接，并提供充分的覆蓋，以提供必要的電磁兼容性（EMC）。

連接

發(fā)動(dòng)機連接 - Quantum控制器可通過(guò)稱(chēng)為短線(xiàn)連接器的3-針未屏蔽連接器與主干線(xiàn)束相連。這在圖1中ECU1連接到主干線(xiàn)束的方法中表示出來(lái)。圖1中還表示出短線(xiàn)連接器有一個(gè)特殊鍵（1類(lèi)鍵），在圖中表示為A和A MATE，其中A MATE 是另一半配合件。對于圖1中有關(guān)ECU 1所示的連接類(lèi)型，三根觸針中的一根將用來(lái)穿過(guò)短線(xiàn)連接器的配合件（A MATE）與加蔽線(xiàn)相連，以便保持屏蔽的電氣導通性。另外兩個(gè)SAE J1939支持的連接電子控制器與主干線(xiàn)束的觸針在圖X中顯示出來(lái)。應當注意，ECU 2的連接提供最佳的外殼EMC改進(jìn)（例如最短的短線(xiàn)）。

注：制作主干線(xiàn)束時(shí)，OEM必須提供發(fā)動(dòng)機J1939維修接頭。

診斷連接 - 診斷連接器是9針Deutsch連接器，為J1939、二級CAN網(wǎng)絡(luò )提供工具（用于農業(yè)/工程機械應用類(lèi)型）、無(wú)開(kāi)關(guān)電源和接地連接。來(lái)自主干線(xiàn)束的診斷連接器允許的最大距離為2/3米（0.67米）。診斷連接器與連接診斷連接器的工具接口電路之間最大允許的距離為另外的1/3米（0.33米）。

對于汽車(chē)/卡車(chē)工業(yè)，SAE推薦的連接器位置處于駕駛室中的操作員側，并在操作員側接地。對于J1587的6-針連接器安裝，推薦使用Deutsch HD10-6-12P連接器。對于J1939和J1587的9-針連接器安裝，建議使用Deutsch HD10-9-1939P連接器 - 請參考AEB 15.10的4.0節中更為詳細的信息。

穿墻式連接器（Bulkhead Connection） - J1939數據通信接口可穿過(guò)OEM穿墻式連接器。為降低電噪聲對數據通信接口的影響，建議不要把導線(xiàn)置于具有極高電流負荷或開(kāi)關(guān)電流的電路附近。建議安裝者在所有繼電器上設計回程二極管，防止出現系統噪音問(wèn)題。

5. J1939電纜和連接器供應商

J1939兼容連接器和電纜現在由許多本地和本國經(jīng)銷(xiāo)商提供。

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The first section I - Quantum diagnosis

The diagnosis of advanced technology

Advanced diagnostic technology for Quantum engine for simple maintenance and service. The diagnostic test condition of failure or maintenance may be done by airborne or airborne systems.

On-board diagnosis

The ECM has a wide range of detection fault

Scintillation fault code

Located in the cab can be indicates a warning/fault indicator light on the dashboard outage

Maintenance indicator

On-board diagnosis

Fault detection

During his work, when the key switch in the ON position detection fault. If the failure into the current failure detected (current), will record the fault memory, at the same time record the engine parameters SuLu data. Additionally according to the severity of the fault current, a specific failure could cause the warning light (yellow) or stop the indicator light (red), maintenance indicator or fuel oil water cut (WIF) light is brighter.

Scintillation fault code

Through diagnosis into fault code flashing mode switch or the accelerator pedal. To enter the flashing mode, fault code key switch must be in the ON (ON) position and engine stop. Use diagnostic switch into the model, after the diagnostic switch to ON position, the ECM will automatically blink the first failure code. Diagnosis of increase/decrease will forward or backward to adjust the current fault code. To use the accelerator pedal into the flashing mode, fault code must be on the and release the accelerator pedal, the throttle opening for three times from 0 to 100%. Once in the diagnostic mode, cycle on the and release the accelerator pedal can be forward to the current fault code sequence. Below described by flashing way down light indication of error code type.

Malfunction indicator lamp

Led light for Quantum system to use as many as five (each indicator has two functions) : stop lights, warning lights, led light for maintenance/engine protection indicator (all series using one of the engine, rather than using two) at the same time, waiting for starting lights and light fuel oil water cut. If you turn the key switch to the ON position and diagnosis switches are disconnected, the indicator will be ON about 2 seconds and then go out, to confirm the indicator light work normally and connection are correct. Refer to the illustration below, all these lights brighten then out each time.

Warning lights - for all Quantum engine warning light is operator to provide important information. Ask the operator to pay attention to the information in a timely manner. Warning lamp is also used to describe diagnostic fault codes.

Stop - stop lamp lights - for all Quantum engine operator providing emergency information. This information requires the operator to quickly response and take right measures. Stop lights twinkle is also used to diagnose fault code.

Engine protection indicator light - for QSK19/45/60, QST30 engine failure - when there are engine protection, engine protection indicator light will brighten. Through OEM wiring configuration system, in order to use red/downtime fault indicator lamp indicates engine protection. This is done through the red light is connected to the ECM red/stop light is input and the engine protection indicator light input. If engine protection indicator light signal is used to control other functions, such as vehicle driving circuit, the circuit must be connected to a diode.

Options - 2 light layout for QSK19/45/60 engine - 2 - lamp layout options will cancel (white) light engine protection. Therefore, operator dashboard is only one warning light (yellow) and a stop light (red). All through the engine protection indicator light failure will be instructed by outage (red) lights. This improvement will only affect the failure lamp circuit layout, software or calibration procedures would not be affected. Refer to the circuit diagram below.

Section II - the ECM serial communication

Quantum serial communication

The purpose of this document is to provide equipment related to Quantum controller serial communication interface application type information. The contents of this file is divided into two broad categories.

First class is suitable for the manufacturing equipment OEM, so for them, the installation of the data communication interface is the most concern. Such content provides information on cable, connector and lists the after test and Quantum controller compatible with cummins data communication device. The second collection of OEM and connected to a Quantum controller design of data communication interface component suppliers of the use of information. This kind of information are described in detail and information support, parameter characteristics, network diagnosis application and related content.

The introduction

Data communication interface makes the equipment on the electronic devices connected to each other. Calculations for some typical functions share the sensor data, share information, allow subsystem (such as engine, transmission, etc.) between the work influence each other, communication subsystem work state. Data communication interface can also be provided onboard or onboard diagnostic work mode.

Quantum controller has two independent serial communication port. One port is used to access the SAE J1939 and compatible with J1939-11, another port used to SAE J1587 and compatible with J1708. SAE J1922 Quantum controller does not support.

The SAE J1939 data communication device is a kind of high-speed network, devices for work under 250 k potter. It can support control, information sharing, diagnosis, multiplexing and proper communication. J1939 (physical layer) data communication adopts differential line driver circuit, to allow the longest bus length of 40 meters. In a given period of time, the network can provide up to 30 nodes connection.

SAE J1587 is working under 9600 baud speed J1708 baseline network. It supports sharing information, diagnosis, and proper communication. In a given period of time, the network can provide up to 20 node connection.

When the device when the key switch to the ON (ON) position, Quantum J1939 / J1587 data communication interface ON the controller at the same time.

Apply the SAE documents

This document and the SAE specification listed below contains Quantum communication interface (J1939 and J1587) connected to the equipment application type information.

The SAE 1939 recommended for serial control and communications networks now (April 1997). It provides a plan of the J1939 -xx file list, also provide a full set of documents on network and the basic operation of the simple instructions.

The SAE J1939-11 (March 1997). The physical Work under a speed of 250 KB/SEC, a linear bus with shielded twisted-pair cable circuits.

The SAE J1939-12 (the physical working draft for part 2 of ISO 11783, May 1997). Work under a speed of 250 KB/SEC, a linear bus with four core stranded wire.

SAE J1939-13 and onboard diagnostic connector (January 1997), specify the 9 - needle Deutsch connector for J1939, J1587 and secondary CAN provide network tools, a switching power supply and grounding connection.

The SAE J1939-21 data communication layer (July 1998), designated CAN 2.0 b as use information protocol, it also defines the J1939 application layer interface.

SAE J1939 application layer - 71 vehicle (May 1996 and January 97 appendix), defines the transmission parameter values to explain rules and allows the receiving device to determine the sending device can provide all the parameters related to the parameter according to the group, whether there is any parameter error status, or signal is valid.

The SAE J1939 application layer - 73 diagnosis (October 1998) - diagnosis. Defined in J1939 capacity needed to implement diagnosis on arranging scheme, in order to determine subsystems of the failure of a minimum of maintenance features, how to malfunction, read and clear fault code diagnosis, diagnostic indicator status of communication, and provide maintenance tool monitoring a variety of parameters.

The SAE J1939-81 network management (November 1996)

SAE J1587 (March 1996 and in January 97, appendix) - heavy equipment application type microcomputer system, the connection between the SAE/TMC electronic data interchange. Define the format of the information and data as well as guidelines for transmission frequency and environmental information.

The SAE J1708 (October 1993) - heavy equipment to the physical serial data communication between application type microcomputer system.

The applicable cummins files

Can be found in the following cummins technical standards and documents data communication interface of the other information:

Technical interface specification: 1377-9804 - J1939 multiplexing of input and output. By J1939 data communication interface rather than through the separation of the conductor (the cruise control switch input, light output, etc.) provided to the engine or information provided by the engine to provide signal processing requirements.

AEB Quantum 15.44 installation proposal file

J1939 installation information

This section provides the equipment installing J1939 data need communication interface information. Please refer to the AEB 15.44 - Quantum advice details of the installation.

Used for QSM11 QSX15 and mandatory EA (data communication interface) options

Does not apply to QSK 19

J1939

For installing J1939 data communication interface on the engine, the understanding of the requirements of a cable wiring and connector is very important. The next section provides details of cable wiring and connectors. Also provides some supplier information, in order to purchase cable and connector.

3. The cable wiring

Main beam - a maximum length of 40 meters (131 feet) of a linear bus. In a given period of time can be connected to the backbone of the small points (electronic controller) to 30. Note that B and B MATE (cooperate) button (2) is the main beam and terminal connector key, B for socket, B MATE for the plug.

To agree with J1939-11, main beam for the drain wire is shielded twisted-pair cable, and need passive resistor in each network terminal. J1939-11 typical layout for car/highway application type. Please refer to figure 1.

In order to agree with J1939-12, main beam are four core stranded wire with a drain line, and each side need to take the initiative to end of the network and bias circuit. Make the physical J1939-11 without blocking. Also used to send and receive the physical mechanical and road design, allowing the J1939-11 nodes in the same network as J1939-12 nodes.

Short term - main beam connection with each node (electronic controller) referred to as the short term, up to 1 meter (3.3 feet). Please refer to figure 1.

Shield - electrical connection screen through the node (electronic controller) bus connection point and the main bus internal connection of the drain line. Should also pay attention to the block can only be a grounding in the anode of the battery. Although shielding fails to cover a linear bus or short connector (read the details in the section below) connection parts, it is still with the period of shielded cable electrical connections, and provide the fully covered, to provide the necessary electromagnetic compatibility (EMC).

connection

Engine connection - Quantum controller can be called a short 3 - pin connector is not shielded connector connected to the main beam. ECU1 this in figure 1 is connected to the main beam of the method. Figure 1 also said in the short term the connector has A special keys (class 1), in the figure is expressed as A and A MATE, A MATE is the other half of mating parts. For 1 as shown in figure 1 in the ECU of connection types, three contact pin of A will be used to through the short line connector mating parts are connected to the drain line (A MATE), in order to keep the shielding electrical connectivity. Two other SAE J1939 support the connection of the electronic controller and the main beam of the contact pin shown in the figure X. It should be noted that the ECU 2 connection provides the best EMC improvement (such as the shortest short term).

Note: production of main beam, the OEM must provide engine J1939 repair joints.

Diagnostic connection - Deutsch connector, the connector is 9 needle for J1939, secondary CAN network tools (used for agricultural/engineering machinery application type), a switching power supply and grounding connection. From the main beam diagnostic connector allows maximum distance is 2/3 meters (0.67 m). Diagnostic connector and connect the connector of the maximum allowable distance between tool interface circuit for another one-third meters (0.33 m).

For car/truck industry, the SAE recommended connector position operator in the cab side, and on the operator side of the earth. For J1587 6 - pin connector installation, it is recommended to use Deutsch HD10-6-12 p connector. For J1939 and J1587-9 pin connector installed, it is recommended to use Deutsch HD10-9-1939 p connector - please refer to the AEB 15.10 more details in section 4.0.

Wear a wall connector (Bulkhead Connection) - J1939 data communication interface can be worn through the OEM wall type connector. To reduce the electrical noise influence on data communication interface, suggest don't put the conductor is placed in the high current load near or switch electric current of the circuit. Recommended installers design on all relay backhaul diode, prevent system noise problems.

5. J1939 cable and connector suppliers

J1939 compatible connector and cable is provided by many local and domestic dealers now.