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Determining the Failing Component Using a Wrap
Test
In the troubleshooting procedures in this chapter, you are sometimes instructed to
perform a wrap test in order to determine the failing component that caused the
problem.
To run a wrap test:
1. Enter the SET PORT slot.port DISABLE command, where slot is the slot number of
the 6412M-25-TP module and port is the number of the port (1 through 12). Then
press Enter.
2. Insert a wrap plug in the port.
3. Enter WRAP slot.port EXTERNAL where slot is the slot number of the module and
port is the number of the port. Then press Enter.
If you receive a return code of KO Test Failed, the port is faulty and the module
motherboard should be replaced. Contact your 3Com Service Representative.
If you receive a return code of OK Test Successful, test the line connected to the
port.
Chapter 4. Troubleshooting 4-9