Cisco uBR10012 Troubleshooting Manual page 61

Chapter 4 Troubleshooting Line Cards
Table 4-5 OC-12 POS Line Card Fault Indications and Recommended Action
Fault
Fail LED is lit indicating that the line card has failed
Carrier LED is off and interface is enabled
Fail LED blinks then lights steadily repeatedly
or
Card seems to be passing traffic (Tx/Rx lights), but
cannot communicate with the PRE
OL-1237-01
Troubleshooting the OC-12 Packet-Over-SONET Line Card
Corrective Action
Reinsert the line card.
1.
Replace the line card.
2.
Insert the line card in another slot.
3.
4. Contact the Cisco TAC.
Check the fiber optic cable, making sure that it is properly
1.
attached at both ends.
Make sure that you are using the proper fiber type.
2.
Check the cable connections on the remote equipment.
3.
Contact the Cisco TAC.
4.
Check for bent pins on the backplane.
1.
2. If there are no bent pins, replace with a new line card.
3. Try inserting the line card in a different slot.
If the card works in a different slot, the Cisco uBR10012
backplane may be defective. Contact the Cisco TAC.
Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
4-13