Specifications

1-18
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
b. Position the cursor over the active TCC+ card slot.
c. Right click and choose RESET CARD.
Step 6 If the alarm reappears after you perform the switch, replace the TCC+ card.
a. Open the card ejectors.
b. Slide the card out of the slot.
c. Open the ejectors on the replacement card.
d. Slide the replacement card into the slot along the guide rails.
e. Close the ejectors.
Note When replacing a card with an identical type of card, you do not need to change the CTC
database.
1.3.26 CONTBUS-A-X
• Major, Non-service affecting
The TCC+ card in Slot 7 has lost communication with the card in Slot X. Cards require frequent
communication with the TCC+ card because the TCC+ performs system initialization, provisioning,
alarm reporting, maintenance, diagnostics, IP address detection/resolution, SONET Data
Communications Channel (SDCC) termination, system fault detection, and other operations for the ONS
15454. The TCC+ card also ensures that the system maintains Telcordia timing requirements.
The CONTBUS-A-X alarm can appear briefly when the ONS 15454 switches to the standby TCC+ card.
In this instance, the alarm clears after the 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+ 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, see the “CONTBUS-A-18” section on page 1-19.
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-A-X Alarm for Slots 1 Through 17
Step 1 Ensure the Slot X card is physically present. Record the card type.
Step 2 Click the Inventory tab to reveal the provisioned type.
If the actual card type and the provisioned card type do not match, complete the “Clear the MEA Alarm
on a Cross-Connect or Line Card” procedure on page 1-59.