2-38
Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter2 Alarm Troubleshooting
Alarm Procedures
Step 2 Position the cursor over the XTC card in Slot 6 and complete the “Reset the Active XTC Card in CTC”
procedure on page 2-129 to make the standby XTC in Slot 5 active.
Step 3 If the reset card has not rebooted successfully, or the alarm has not cleared, c all TAC (1-800-553-2447).
If the TAC technician tells you to reseat the card, complete the “Remove and Reinsert (Reseat) the
Standby XTC” procedure on page 3-3. If the TAC technician tells you to remove th e c ar d an d reinsta ll a
new one, follow the “Physically Replace a Card” procedure on page 2-130.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
2.6.37 CONTBUS-B-18
•Major (MJ), Non-Service Affecting (NSA)
A Communication Failure from XTC Slot to XTC slot alarm occurs when the main processor on the XTC
card in Slot 6 (termed XTC B) 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-B-18 Alarm

Step 1 Position the cursor over the XTC card in Slot 6 and complete the “Reset the Active XTC Card in CTC”
procedure on page 2-129 to make the XTC in Slot 5 active.
Verify that the active card you reset is now standby. The ACT/STBY LED of this card shou ld be amb er,
and the newly active XTC card LED should be green.
Step 2 Position the cursor over the XTC card in Slot 5 and complete the “Reset the Active XTC Card in CTC”
procedure on page 2-129 to make the standby XTC in Slot 6 active.
Step 3 If the reset card has not rebooted successfully, or the alarm has not cleared, c all TAC (1-800-553-2447).
If the TAC technician tells you to reseat the card, complete the “Remove and Reinsert (Reseat) the
Standby XTC” procedure on page 3-3. If the TAC technician tells you to remove th e c ar d an d reinsta ll a
new one, follow the “Physically Replace a Card” procedure on page 2-130.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
2.6.38 CONTBUS-IO-A
•Major (MJ), Non-Service Affecting (NSA)