14-55
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
Note
When you replace a card with an identical type of card, you do not need to make any changes to
the database.
14.4.74 LOP-V
•
Major, Service-Affecting
The loss of pointer VT (LOP-V) alarm indicates a loss of pointer at the VT level. The VT, or electrical,
layer occurs when the SONET signal is broken down into an electrical signal, for example, when an
optical signal comes into an ONS 15327. The ONS 15327 demultiplexes this optical signal. One of the
channels separated from the optical signal cross connects into an ONS 15327 XTC card port. The ONS
15327 reports the LOS-V alarm.
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 LOP-V Alarm on the XTC Card
Step 1
Verify the stability of the cabling and physical connections on the reporting card.
Step 2
Perform a software reset on the reporting card:
a.
Display the CTC node view.
b.
Position the cursor over the slot reporting the alarm.
c.
Right-click and choose
RESET CARD
.
Step 3
Perform a manual switch to move traffic away from the card:
a.
At the node view, click the
Maintenance >
Protection
tabs.
b.
Double-click the protection group that contains the reporting card.
c.
Click the Protect/Standby card of the selected groups.
d.
Click
Manual
and
OK
.
Note
If you do not have a protect card for the reporting card, create a new circuit on the reporting
card to achieve the same effect.
Step 4
Clear the manual switch:
a.
At the node view, click the
Maintenance >
Protection
tabs.
b.
Double-click the protection group that contains the reporting card.
c.
Highlight either selected group.
d.
Click
Clear
and click
YES
at the confirmation dialog box.
Step 5
If the alarm persists, the problem is at the far-end node. Verify the cabling and physical connections that
connect to the far-end card.
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 ...