Specifications

1-35
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
c. Highlight either selected group.
d. Click Clear and click YES at the confirmation dialog box.
Step 12 If the alarm persists, replace the protect card.
Note When you replace a card with an identical type of card, you do not need to make any changes
to the database.
Step 13 Log on to http://www.cisco.com/tac for more information or call the Cisco Technical Assistance Center
to report a service-affecting problem (1-877-323-7368).
1.3.45 FAILTOSWR
• Major, Service affecting
This alarm signals an automatic protection switching (APS) ring switch failure. FAILTOSWR clears
when one of the following actions occurs: a higher priority event, such as a user-switch command occurs,
the next ring switch succeeds, or the cause of the APS switch (such as an SF or SD alarm) clears.
Warning On the OC-192 card, the laser is on when the card is booted and the safety key is in the on position
(labeled 1). The port does not have to be in service for the laser to be on. The laser is off when the
safety key is off (labeled 0).
Warning Invisible laser radiation may 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 may pose an eye hazard. Use of controls or adjustments or performance of procedures
other than those specified may result in hazardous radiation exposure.
Procedure: Clear the FAILTOSWR Alarm on a Four-Fiber BLSR Configuration
Step 1 Check to see that every node expected to be part of the ring is listed in the ring map:
a. Click the Provisioning > Ring tabs.
b. Highlight the row of the affected ring.
c. Click Ring Map.
d. Verify that a Node ID appears in the Ring Map for every node expected to be part of the ring.
Step 2 Display the CTC network view.
Step 3 Look for alarms on OC-N cards that make up the ring or span and troubleshoot these alarms.
Step 4 Log into the near-end node and click the Ring > Provisioning tabs.
Step 5 Record the OC-N cards listed under West Line and East Line. Ensure these OC-N cards are active and
in-service.
Step 6 Verify fiber continuity to the ports on the recorded cards.