Lop-V - Cisco ONS 15327 User Documentation
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Also See for ONS 15327:
- Procedure manual (478 pages) ,
- Manual (42 pages) ,
- Reference manual (166 pages)
Table of Contents
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Chapter 14
Alarm Troubleshooting
Note
14.4.74 LOP-V
•
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.
Always use the supplied ESD wristband when working with a powered ONS 15327. Plug the wristband
Caution
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.
Perform a software reset on the reporting card:
Step 2
a.
b.
c.
Perform a manual switch to move traffic away from the card:
Step 3
a.
b.
c.
d.
Clear the manual switch:
Step 4
a.
b.
c.
d.
If the alarm persists, the problem is at the far-end node. Verify the cabling and physical connections that
Step 5
connect to the far-end card.
June 2002
When you replace a card with an identical type of card, you do not need to make any changes to
the database.
Major, Service-Affecting
Display the CTC node view.
Position the cursor over the slot reporting the alarm.
Right-click and choose RESET CARD.
At the node view, click the Maintenance > Protection tabs.
Double-click the protection group that contains the reporting card.
Click the Protect/Standby card of the selected groups.
Click Manual and OK.
If you do not have a protect card for the reporting card, create a new circuit on the reporting
Note
card to achieve the same effect.
At the node view, click the Maintenance > Protection tabs.
Double-click the protection group that contains the reporting card.
Highlight either selected group.
Click Clear and click YES at the confirmation dialog box.
Cisco ONS 15327 User Documentation, R3.3
Alarm Procedures
14-55
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