Troubleshooting The T640 Fpcs - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Troubleshooting the T640 FPCs

Problem
Solution
474
To troubleshoot the T640 control boards:
Check the LEDs on the faceplate of each control board.
1.
Check the LEDs on the craft interface.
2.
Use the CLI to check for alarms.
3.
Standalone T640 router—Issue the
alarms.
T640 router in a routing matrix—Issue the
command to view the alarms.
T640 Control Boards Description
T640 LCC-CB Description on page 61
T640 LCC-CB LEDs on page 62
T640 T Series Control Boards (T-CBs) Description on page 64
T640 T Series Control Boards (T-CBs) LEDs on page 66
Replacing a T640 LCC-CB on page 310
Replacing a T640 Standard Control Board or T-CB on page 313
Description:
The following LEDs indicate a problem:
The red LED above the FPC on the craft interface is lit.
FAIL
The OK for the FPC on the craft interface is off.
If the red LED above the FPC is on, look at the display on the craft interface to
FAIL
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
command to view the
show chassis alarms
show chassis alarms lcc lcc-number
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