The WTOCM IN port will show no information for the total power at the WTOCM port
and the LD port (see Figure 3-25, “WTOCM and LD Total Power ” (p. 3-78)). Note that
readings
normally available from the WTOCM are not reported.
If only one clock source is present in the system and it fails, the FPGA may not recover
properly. The FPGA requires the clocks to be Stratum 3 quality or higher. It is
recommended that you use two PF units for clock and power redundancy.
Note: No alarm conditions are associated with this issue. If you see this issue with the
“Card Failure” or “Card Degrade” alarm, then the issue is likely caused by another
problem. Replacing the card should resolve these alarms (see “Replacing a Card
(General)”
(p. 3-22)).
Procedure
NOTICE
Service-disruption hazard
A cold reset, reseat, or replacement of a card is service impacting if the card is currently
carrying services. To determine if any services are currently carried over a card, perform
the procedure “Reseating a Card” (p. 3-19).
If
there are services currently carried over the card, it may be best to wait for a
maintenance window before resetting, replacing, or reseating the card.
Figure 3-25 WTOCM and LD Total Power
Supporting procedures
Card-Specific Troubleshooting
Egress Adjustment Failure and Clock Source (WTOCM and
PF)
....................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................
3-78
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
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