Branched end layout分支端头布局
Conductors separate toward different ends, creating individual connection points. Branch lengths and directions can follow the equipment modules.导线向不同端头分出，形成独立接入位置。各支路可围绕设备模块分别安排长度与方向。
J1939 Heavy-Duty HarnessJ1939重卡线束
J1939 9-Pin to DB9 & OBD-II Diagnostic Branch HarnessJ1939 9针转DB9及OBD-II分支诊断线束
J1939 9-Pin to DB9 & OBD-II Diagnostic Branch Harness combines branched end layout, d-sub interface end, obd-form connection end. Interface, circuit and installation data guide dimensions, material selection and sample review.J1939 9针转DB9及OBD-II分支诊断线束的结构重点包括分支端头布局、D-Sub接口端、OBD形式接入端。接口、电路与安装资料将作为尺寸、物料和样品制作的确认依据。
- Branched end layout分支端头布局
- D-Sub interface endD-Sub接口端
- OBD-form connection endOBD形式接入端
CONSTRUCTION结构解析
Connection structure and design details连接结构与设计要点
Use the j1939 9-pin to db9 & obd-ii diagnostic branch harness form as a starting point and confirm these design points against drawings and the actual equipment.以J1939 9针转DB9及OBD-II分支诊断线束的结构形式为起点，结合图纸和实际设备确认以下设计要点。
D-Sub interface endD-Sub接口端
The D-Sub-form end allows equipment connection to be arranged around the mating face, fixing screws and rear cable route.端头采用D-Sub形式，可围绕插合面、固定螺钉和后部线缆走向安排设备连接。
OBD-form connection endOBD形式接入端
The OBD-form end connects at an equipment or vehicle access position. Allow space for insertion, removal and cable turns.端头以OBD接口形式连接到设备或车辆接入位置，布局需保留插入、拔出及线缆转向空间。
End transition layout端头转接与组合
The assembly organizes a transition or combined connection, with end directions, transition sections and fixing arranged around the equipment positions.组件以转接或组合形式组织连接，可围绕两端设备位置安排端头方向、过渡段与固定。
CONFIGURATION结构与选配
Construction & customization options结构与定制配置
The table describes the construction and available configuration choices. Materials, dimensions, circuits and inspection requirements are agreed for each project.以下说明展示结构与可配置内容。具体材料、尺寸、电路和检验要求按项目确认。
| Vehicle/equipment platform and J1939 interface version车辆或设备平台、J1939接口版本 | Identify platform, interface version and target network.先确定平台、接口版本与目标网络。 |
|---|---|
| 9-pin or other interface coding and pin table9针或其他接口颜色编码与针表 | Identify connectors from color, keying and pin maps together.颜色、键位与针图组合识别接头。 |
| CAN trunk, stub lengths and terminationCAN主干、支路长度和终端配置 | Review trunk, stubs and termination within the network topology.主干、支路与终端纳入网络拓扑审核。 |
| Supply voltage, ground and shield grounding电源电压、地与屏蔽接地 | Define device power, signal ground and shielding separately.设备供电、信号地与屏蔽路径分开定义。 |
| Circuit and revision reference电路与版本依据 | Provide the vehicle or equipment maker, model and year; engine and controller identifiers; connector color and mating-face photographs; released pin map; required network channel and speed; tool or device interface; whether the lead is for diagnostics, logging, telematics or permanent installation; cable length and branch datums; sealing, abrasion, temperature and chemical exposure; quantity; labels; and the required electrical and communication checks.请提供车辆或设备制造商、型号与年份；发动机及控制器信息；连接器颜色和对插面照片；已批准针脚表；所需网络通道与速率；工具或设备端接口；诊断、记录、车联网或永久安装用途；线长与分支基准；密封、磨损、温度及化学暴露；数量、标签以及所需电气和通信检查。 |
| Sample and manufacturing configuration样品与制造配置 | We convert approved interface and network information into controlled drawings, connector and terminal BOMs, cable definitions, branch dimensions, molding or backshell requirements, identification and test programs. Production checks can verify construction and pin mapping; live J1939 communication requires the specified vehicle, controller, simulator or approved network fixture and an agreed functional scope.我们把批准的接口和网络资料转化为受控图纸、连接器与端子物料表、线缆定义、分支尺寸、包胶或尾壳要求、标识与测试程序。生产检查可以核实结构和针脚映射；实际 J1939 通信仍需指定车辆、控制器、模拟器或批准的网络工装，并明确功能验证范围。 |
APPLICATIONS连接的应用
Application directions应用方向
These are connection directions for project discussion. Suitability depends on interfaces, circuits, installation conditions and project validation; configuration can be adapted to the equipment.以下为可讨论的连接方向。实际适用性取决于接口、电路、安装环境和项目验证，可按设备需求调整。
Heavy-vehicle diagnostics重型车辆诊断
Confirm interface version together with the tool-side pin map. Identify platform, interface version and target network.接口版本与工具侧针图一起确认。选配时，先确定平台、接口版本与目标网络。
Vehicle network branches车载网络支路
Include stubs, device loading and termination in the topology. Identify connectors from color, keying and pin maps together.分支引出、设备负载与终端配置放入拓扑。选配时，颜色、键位与针图组合识别接头。
Vehicle-network equipment access车辆网络设备接入
Define equipment access from the approved network topology, pins and supply requirements, including installation position and service boundaries. Review trunk, stubs and termination within the network topology.设备接入依据获批网络拓扑、针脚与供电要求定义，确认安装位置和维修时的连接边界。选配时，主干、支路与终端纳入网络拓扑审核。
Bus and specialty-vehicle networks客车及专用车辆网络
Confirm interfaces, stubs and environment for the particular network. Define device power, signal ground and shielding separately.平台接口、支路及环境按具体网络确认。选配时，设备供电、信号地与屏蔽路径分开定义。
Agricultural and construction networks农业与工程设备网络
Review network paths with mud/water, vibration and installation. Identify platform, interface version and target network.网络路径与泥水、振动等安装条件一起审核。选配时，先确定平台、接口版本与目标网络。
Service adapters and replacements维修转接与替换
Preserve keying/network boundaries without copying unknown termination. Identify connectors from color, keying and pin maps together.保留准确接头键位和网络边界，避免复制未知终端。选配时，颜色、键位与针图组合识别接头。
ENGINEERING & PRODUCTION工程与制造
Adapt the connection to your equipment.围绕设备，调整连接细节。
Touched by me, better it’ll beTouched by me, better it’ll be
Custom wire harness manufacturing in China中国工厂 · 定制线束制造
Our China factory supports j1939 heavy-duty harness projects through custom wire harness manufacturing and OEM/ODM development. Interface, circuit and installation data guide material selection, sample builds and manufacturing-document approval before repeat production.Super Smile-Tech 中国工厂围绕J1939重卡线束的项目需求提供定制线束制造与 OEM/ODM 支持。我们从接口、电路与安装资料开始，协同物料选配、样品制作和制造文件确认，再按批准要求组织重复生产。
Vehicle/equipment platform and J1939 interface version车辆或设备平台、J1939接口版本
Identify platform, interface version and target network.先确定平台、接口版本与目标网络。
9-pin or other interface coding and pin table9针或其他接口颜色编码与针表
Identify connectors from color, keying and pin maps together.颜色、键位与针图组合识别接头。
Supply voltage, ground and shield grounding电源电压、地与屏蔽接地
Define device power, signal ground and shielding separately.设备供电、信号地与屏蔽路径分开定义。
PRODUCT QUESTIONS产品问答
Product & customization questions产品与定制常见问题
Does every nine-pin heavy-duty connector provide the same J1939 access?所有九针重型车辆接口都提供相同 J1939 访问吗？
No. Keying, connector generation, populated cavities, power arrangement and available network channels can differ. The exact equipment and released pin definition must be checked.不是。防错、连接器代次、装针、供电安排和可用网络通道都可能不同，必须核对准确设备与放行针脚定义。
What is the difference between black Type 1 and green Type 2 interfaces?黑色 Type 1 与绿色 Type 2 接口有什么区别？
They use different keying associated with different J1939 physical-layer generations. A color observation supports identification but does not replace confirmation of the vehicle network, speed and actual pin population.两者使用与不同 J1939 物理层代次相关的防错结构。颜色观察有助于识别，但不能替代对车辆网络、速率和实际装针的确认。
Can one splitter support a diagnostic tool and telematics unit at the same time?一根分支线可以同时连接诊断仪和车联网设备吗？
Sometimes, but only after reviewing branch length, device loading, termination, traffic, power draw, ground paths and the vehicle's permitted connected state.有时可以，但必须审核支线长度、设备负载、终端、通信流量、取电、接地路径及车辆允许的连接状态。
Start with your interface and installation requirements从您的接口与安装需求开始
Share mating interfaces, a circuit table, target lengths or a sample for the j1939 9-pin to db9 & obd-ii diagnostic branch harness. We can use them to review configuration and sample requirements.提供J1939 9针转DB9及OBD-II分支诊断线束的对插接口、回路表、目标长度或参考样品，我们据此梳理选配与样品确认事项。