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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
2.6.35 COMIOXC
• Critical (CR), Service Affecting (SA)
The Input/Output Slot To XTC Communication Failure (COMIOXC) alarm is caused by a
communication error in the XTC card to a high-speed traffic card slot.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the COMIOXC Alarm
Step 1 Complete the “Reset the Active XTC Card in CTC” procedure on page 2-129 on the reporting XTC card.
Verify that the active card you reset is now standby. The ACT/STBY LED of this card should be amber,
and the newly active XTC card LED should be green.
Step 2 Complete the “Remove and Reinsert (Reseat) a Card” procedure on page 2-130 for the reporting XTC
card.
Step 3 If the alarm does not clear, complete the “Physically Replace a Card” procedure on page 2-130 for the
reporting XTC card.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
Step 4 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC to report
a service-affecting problem (1-800-553-2447).
2.6.36 CONTBUS-A-18
• Major (MJ), Non-Service Affecting (NSA)
A Communication Failure from XTC A Slot to XTC Slot alarm occurs when the main processor on the
XTC card in Slot 5(termed XTC A) loses communication with the coprocessor on the same card.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the CONTBUS-A-18 Alarm
Step 1 Complete the “Reset the Active XTC Card in CTC” procedure on page 2-129 to make the XTC in Slot 6
active.
Verify that the active card you reset is now standby. The ACT/STBY LED of this card should be amber,
and the newly active XTC card LED should be green.