NUT 8P1653 - Caterpillar

Caterpillar Products All MachinesGenerator Set AllPower Module All Power ModulesIntroduction
The purpose of this Special Instruction is to provide a foundation for understanding, troubleshooting, and repairing various Ethernet layers. This document applies to Ethernet on all Caterpillar Equipment, Power Systems, and Aftermarket/Retrofit Systems. Technicians with various levels of skill should use this document as a single point of reference to provide guidance from start to finish. Other pieces of documentation may be available that are specific to certain Equipment, Power Systems, and Aftermarket/Retrofit Systems. Those documents should be used to reference specific software/hardware/system application knowledge.The scope of this document will include 2 wire Ethernet and 4 wire Ethernet. The Ethernet technologies listed here may be serviced by Caterpillar Electronic Technician (Cat ET) for flashing, troubleshooting, ECM downloads, and configurations. Ethernet may also be used for Technology Enhancements such as retrofit upgrades, cameras, semi-autonomy, autonomy, and off board solutions.This document will not describe how to perform all ET service over Ethernet. The Ethernet physical layer may be serviceable (replacement patch cable) and not serviceable (harness replacement). The document shall be outlined by the following sections:
"Identifying Ethernet Problem (Symptom/Diagnostic)"
"Cable Inspection"
"Identifying Required Replacement Cables"
"Ethernet Patch Cable Replacement"Safety Section
Personal injury or death can result from improper assembly procedures.Do not attempt any assembly until you have read and understand the assembly instructions.
Improper operation of an access platform could result in injury or death. Operators must carry out their duties properly and follow all instructions and guidelines given for the machine and access platform.
Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility.
Do not perform any procedure in this Special Instruction until you have read this Special Instruction and you understand this information. Use only proper tools and observe all precautions that pertain to the use of those tools. Failure to follow these procedures can result in personal injury. The following procedures also should be observed.Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard.Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. Ensure that any tool, procedure, work method, or operating technique you use that is not recommended by Caterpillar is safe.Ensure that the