Specifications

1-20
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
Step 8 If the alarm reappears when the TCC+ in Slot 7 reboots as the active TCC+, the TCC+ card in Slot 7 is
defective and must be replaced.
Note When you replace a card with an identical type of card, you do not need to make any changes
to the database.
1.3.28 CONTBUS-B-X
• Major, Non-service affecting
The TCC+ card in Slot 11 lost communication with the card in Slot X. Cards require frequent
communication with the TCC+ card, because the TCC+ card performs system initialization,
provisioning, alarm reporting, maintenance, diagnostics, IP address detection/resolution, SONET DCC
termination, and system fault detection among other operations for the ONS 15454. The TCC+ card also
ensures that the system maintains Telcordia timing requirements.
This alarm may appear briefly when the ONS 15454 switches over to the protect TCC+ card. In this
instance, the alarm clears after the other cards establish communication with the new primary TCC+
card. In cases where the alarm persists, the problem lies in the physical path of communication from the
TCC+ card to the reporting card. The physical path of communication includes the TCC+ card, the card
in Slot X, and the backplane.
Note If X equals 18, then see CONTBUS-B-18 listed below.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf
assembly.
Procedure: Clear the CONTBUS-B-X Alarm for Slots 1 Through 17
Step 1 Ensure the Slot X card is physically present and that it matches the type of card identified in that slot on
CTC.
Step 2 If this slot is the only one reporting the alarm, perform a software reset of the traffic card:
a. Display the CTC node view.
b. Position the cursor over the slot reporting the alarm (Slot X).
c. Right-click the mouse and choose RESET CARD to do a software reset.
Step 3 If the software reset does not clear the alarm, physically reseat the reporting card.
Step 4 If all cards with the exception of the active TCC+ report this alarm, perform a software reset of the active
TCC+:
a. Display the CTC node view.
b. Position the cursor over the active TCC+ card slot.
c. Choose RESET CARD.