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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter2 Alarm Troubleshooting
2.7.43 CONTBUS-IO-A

Clear the CONTBUS-DISABLED Alarm

Step1 If the IMPROPRMVL alarm is raised, complete the “Physically Replace a Card” procedure on
page 2-154. (For general information about card installation, refer to the “Install Hardware” chapter in
the Cisco ONS 15310-CL and CiscoONS 15310-MA Procedure Guide.)
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS15310-CL
or ONS 15310-MA.
Step2 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC (1-800-553-2447) in order to report a Service-Affecting(SA)
problem.
2.7.43 CONTBUS-IO-A
Default Severity: Minor(MN), Non-Service-Affecting (NSA)
SONET Logical Object: EQPT
A 15310-CL-CTX A or CTX2500 card to Shelf Slot Communication Failure alarm occurs when the
cross-connecting card (in this platform, the controller card) has lost communication with another card
slot in the shelf. The other card is identified by the Object column in the CTC alarm window.

Clear the CONTBUS-IO-A Alarm

Step1 Ensure that the reporting card is physically present in the shelf. Record the card type. Click the
Inventory tab and view the Eqpt Type column to reveal the provisioned type.
If the actual card type and the provisioned card type do not match, see the “MEA (EQPT)” alarm on
page 2-109 for the reporting card.
Step2 Complete the “Soft- or Hard-Reset an Ethernet or Electrical Card in CTC” procedure on page2-153.
Caution Avoid soft-resetting multiple ONS15310-MA cards at one time; doing so might cause an unexpected
traffic hit.
For LED behavior, see the “2.9.2 Typical Card LED Activity During Reset” section on page 2-147.
Wait ten minutes to verify that the card you reset completely reboots.
Step3 If CONTBUS-IO-A is raised on more than one card at once, complete the “Soft- or Hard-Reset a
Controller Card” procedure on page2-153.
Caution Avoid soft-resetting multiple ONS15310-MA cards at one time; doing so might cause an unexpected
traffic hit.
Step4 Verify that the reset is complete and error-free and that no new related alarms appear in CTC. A green
ACT LED indicates an active card.