14-76
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
Warning
Invisible laser radiation may be emitted from the aperture ports of the single-mode, fiber-optic
modules when no cable is connected. Avoid exposure and do not stare into open apertures.
Caution
Always use the supplied ESD wristband when working with a powered ONS 15327. Plug the wristband
cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
Procedure: Clear the SF-P Condition on an OC-N Card
Step 1
Verify that the user-provisionable BER threshold is set at the expected level:
a.
From the CTC node view, double-click the card reporting the alarm to bring up the card view.
b.
Click the
Provisioning
>
Line
tabs.
c.
Under the SF BER column on the Provisioning pane, check that the cell entry is consistent with what
the system was originally provisioned for. The default setting is 1E-4.
d.
If the entry is consistent with what the system was originally provisioned for, continue to step 2.
e.
If the entry is not consistent with what the system was originally provisioned for, click the cell to
reveal the range of choices and click the entry that is consistent with what the system was originally
provisioned for.
f.
Click
Apply
.
Step 2
Using an optical test set, measure the power level of the line and ensure it is within the guidelines.
Step 3
Verify that optical receive levels are within the acceptable range.
Step 4
Verify that single-mode fiber is being used.
Step 5
Verify that a single-mode laser is being used at the far-end node.
Step 6
If the problem persists, the transmitter at the other end of the optical line may be failing and need
replacement.
14.4.108 SFTWDOWN
•
Minor, Non-Service-Affecting
A software download in progress (SFTWDOWN) alarm occurs when the XTC is downloading or
transferring software. No action is necessary. Wait for the transfer or the software download to complete.
Caution
It can take up to 30 minutes for software to be updated on a standby XTC card. Wait the full time period
before removing the card. Premature removal can cause flash corruption.
14.4.109 SFTWDOWN-FAIL
•
Minor, Non-Service-Affecting
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...