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| 图 1 | g03129759 |
Cat® 电子技师 (Cat ET) 维修工具连接 | |
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| 图 2 | g03120737 |
J1939 (CAN) 数据链路连接 | |
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变速箱 ECM 通过机器上的两条数据链路进行通信。 这两条数据链路均用于 ECM 之间的通信，同时也允许与维修工具进行通信。 下面列出了两种类型的数据链路系统。
注: 数据链路是不可见的部件。
Cat 数据链路 - Cat 数据链路用于在控制模块与 Cat® 电子技师 (Cat ET) 维修工具之间发送有关系统状态的信息。 底盘系统的所有诊断代码都由 Cat 数据链路来激活。
SAE J1939 (CAN) 数据链路 - SAE J1939 (CAN) 数据链路是一条高速数据链路。 SAE J1939 数据链路用于在 ECM 和其他机器系统上的控制模块之间进行高速通信。
Cat 数据链路 和 SAE J1939 (CAN) 数据链路均为双向数据链路。 两个数据链路均由内部 ECM 电路、相关线束导线和线束接头组成。
Caterpillar Information System:
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