• Supported Platforms
• T640 Routers

• Related Topics
• T640 Craft Interface Description
• T640 FPC Description
• T640 FPC Components
• Replacing a T640 FPC

Troubleshooting the T640 FPCs

Problem

The following LEDs indicate a problem:

• The red FAIL LED above the FPC on the craft interface is lit.
• The OK for the FPC on the craft interface is off.

During normal operation the OK LED lights steadily.

Solution

• If the red FAIL LED above the FPC is on, look at the display on the craft interface to check the status of the FPC and the PICs that are plugged into it.
• Make sure the FPC is properly seated in the midplane. Verify that each ejector handle has been turned clockwise and is tight. Use a screwdriver to verify that the screws inside the ejector handles are tight.
• To check the status of an FPC, use the following CLI command:
  
  

  user@host> show chassis fpc

  To display more detailed information, use the following option:

  
  

  user@host> show chassis fpc detail