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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
Step 7 If all ONS nodes in the ring appear in the CTC network view, verify or not whether there are incomplete
circuits:
a. Click the Circuits tab.
b. Verify that INCOMPLETE is not listed in the State column of any circuits.
Step 8 If you find circuits listed as incomplete, use an optical test set to verify that these circuits are not working
circuits that continue to pass traffic.
For specific procedures to use the test set equipment, consult the manufacturer.
Step 9 If the incomplete circuits are not needed or are not passing traffic, delete the incomplete circuits.
Complete the “Delete a Circuit” procedure on page 2-128.
Step 10 Recreate the circuit with the correct circuit size. Refer to the Cisco ONS 15327 Procedure Guide.
Step 11 Log back in and verify that all circuits terminating in the reporting card are active:
a. Click the Circuits tab.
b. Verify that the State column lists all circuits as active.
Step 12 If the alarm does not clear, clean the far-end optical fiber according to site practice. If no site practice
exists, complete the procedure in the Cisco ONS 15327 Procedure Guide.
Step 13 If the alarm does not clear, complete the “Physically Replace a Card” procedure on page 2-130 for the
OC-N/DS-N cards.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
Step 14 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).
2.6.187 UNEQ-V
• Major (MJ), Service Affecting (SA)
An SLMF UNEQ VT alarm indicates that the node is receiving SONET path overhead with bits 5, 6, and
7 of the V5 overhead byte all set to zeroes. The source of the problem is the node that is transmitting the
VT-level signal into the node reporting the UNEQ-P. The problem node is the next node upstream that
processes the signal at the VT level. The V in UNEQ-V indicates that the failure has occurred at the VT
layer.
Warning
Invisible laser radiation might be emitted from the end of the unterminated fiber cable or connector.
Do not stare into the beam directly with optical instruments. Viewing the laser output with certain
optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100
mm might pose an eye hazard. Use of controls or adjustments or performance of procedures other than
those specified might result in hazardous radiation exposure.
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.