Follow the instructions below if the “Last Action” field displays “Precondition violation”.
Troubleshooting instructions
1 In the Equipment View, right-click on the OSCT card raising the PREEMPF alarm and select Optical Link Control. On the resulting “Optical Link Control - Config”
window, verify that the setting for “Attenuator Control” is set to “automatic”. Correct the setting if necessary.
2 If the PREEMPF alarm persists, it could be caused by a non-installed or defective card. If a WBAU, WBAN, WBN, WSSC, or PQMC card is present in the Required Equipping Table, but is unavailable to participate in the Link Control process, the PREEMPF alarm can result. So, make sure all required cards are actually installed in the shelf, fibered correctly, and powered. If any alarms are raised on these cards, troubleshoot and clear those alarms and the PREEMPF alarm should also clear.
3 If the PREEMPF alarm persists, return to chapter 3.1.107, step 2.
146 A42022-L5961-L081-03-7619 Issue: 3 Issue date: August 2008
3.1.108 PU1TD, PU2TD, PU3TD, PU4TD, and PU5TD
Troubleshooting instructions
1 Has the card raising the alarm been in service a considerable length of time?
– Yes: in this case, the PUxTD alarm is providing advance warning of perfor-mance degradation due to end-of-life laser aging effects. Although not immedi-ately required, the card indicating the alarm should be replaced with a spare as soon as practical.
– No: continue to step 2.
2 Check the settings of the Output Power per Channel in the OLI “Card Configura-tion” window. Verify that these settings have been made accurately according to your Commissioning Report.
3 If the PU#TD alarm persists, troubleshoot and clear any alarms raised by upstream equipment. A higher than normal temperature can also cause a PU#TD alarm. Verify that the shelf Fan Units are working.
4 If the PU#TD alarm persists, verify that all fiber cables to/from the affected card are properly installed. If a cable is missing, bent/pinched, or improperly connected, correct the problem.
5 If the PU#TD alarm persists, contact your next higher level of technical support before proceeding. Disconnect fibers leading to/from the affected card. Clean all optical connectors and re-connect. If PU#TD alarm persists, replace the fiber(s) with cleaned, inspected spares.
Alarm name Transmit Degrade Pump# (PU#TD) Default severity Minor
Alarm object OLI cards (all types), PUMP cards (all types), and RPUMPC cards.
General information and causes
The Pu#TD alarm is raised if one of the pump laser currents on the indicated card has risen above 120% of its Beginning of Life (BOL) value. The BOL value is set by the factory for each card individually.
OLI and RPUMPC cards can have up to five on-board pump lasers, so RPUMPC and most OLI cards can raise PU1TD, PU2TD, PU3TD, PU4TD, or PU5TD alarm. Exceptions:
OLIVxx types: only PU1TD. OLIMxx types: only PU1TD and PU2TD.
PUMPA/B/C cards have two on-board pump lasers, so a PUMPA/B/C card can raise only a PU1TD or PU2TD alarm.
! Caution!
Note that the PU#TD alarm has raise and clear integration times of 900 seconds (15 minutes. Therefore, wait at least 15 minutes after performing any troubleshooting step to give the alarm time to clear.
A42022-L5961-L081-03-7619 Issue: 3 Issue date: August 2008
147 6 If the alarm persists, Warm Start the card raising the alarm. If the alarm persists after recovery time, Cold Start the card. If the alarm persists after recovery time, the card is defective. Replace the card raising the alarm with a spare.
7 If the alarm persists, contact your next higher level of technical support.
3.1.109 PU1TF, PU2TF, PU3TF, PU4TF, and PU5TF
Troubleshooting instructions
1 Has the card raising the alarm been in service a considerable length of time?
– Yes: In this case, the PUxTF alarm indicates the pump laser has failed due to end-of-life laser aging effects. Replace the card with a spare.
– No: continue to step 2.
2 Check the settings of the Output Power per Channel in the OLI “Card Configura-tion” window. Verify that these settings have been made accurately according to your Commissioning Report.
3 If the PU#TF alarm persists, troubleshoot and clear any alarms raised by upstream equipment. A higher than normal temperature can also cause a PU#TF alarm. Verify that the shelf Fan Units are working.
4 If the PU#TF alarm persists, verify that all fiber cables to/from the affected card are properly installed. If a cable is missing, bent/pinched, or improperly connected, correct the problem.
Alarm name Transmit Fail Pump# (PU#TF) Default severity Minor
Alarm object OLI cards (all types), PUMP cards (all types), and RPUMPC cards.
General information and causes
The Pu#TD alarm is raised if one of the pump laser currents on the indicated card has risen a substantial amount above 120% of its Beginning of Life (BOL) value. The BOL value is set by the factory for each card individually.
OLI and RPUMPC cards can have up to five on-board pump lasers, so RPUMPC and most OLI cards can raise PU1TF, PU2TF, PU3TF, PU4TF, or PU5TF alarm. Exceptions:
OLIVxx types: only PU1TF. OLIMxx types: only PU1TF and PU2TF.
PUMPA/B/C cards have two on-board pump lasers, so a PUMPA/B/C card can raise only a PU1TF or PU2TF alarm.
! Caution!
Note that the PU#TF alarm has raise and clear integration times of 900 seconds (15 minutes. Therefore, wait at least 15 minutes after performing any troubleshooting step to give the alarm time to clear.
148 A42022-L5961-L081-03-7619 Issue: 3 Issue date: August 2008 5 If the PU#TF alarm persists, contact your next higher level of technical support
before proceeding. Disconnect fibers leading to/from the affected card. Clean all optical connectors and re-connect. If PU#TF alarm persists, replace the fiber(s) with cleaned, inspected spares.
6 If the alarm persists, Warm Start the card raising the alarm. If the alarm persists after recovery time, Cold Start the card. If the alarm persists after recovery time, the card is defective. Replace the card raising the alarm with a spare.
7 If the alarm persists, contact your next higher level of technical support.
3.1.110 PWCTLSUSP
Troubleshooting instructions
1 The PWCTLSUSP alarm is simply a consequent warning due to some other alarm.
In other words, some other failure which caused the OLI card output power control to assume the frozen state is the real problem. So, troubleshoot and clear that alarm and the PWCTLSUSP will also clear. One possible reason could be that the OSCT card is failed or missing (a CFAIL alarm will be raised).
2 If the PWCTLSUSP alarm persists, contact your next higher level of technical support.