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2
If the port is pluggable module, remove and reinsert the same module. If the alarm does
not clear, replace the module.
MSIM
MSIM (Multiplex Structure Indication Mismatch)
The MUX OT Line port has detected the mismatch condition of the MSI bytes within the
OTU Signal payload. This may be caused by the following reasons:
• The input OTU signal is severely degraded
• High uncorrectable bit-error-ratio condition
• The input OTU signal has a different multiplex structure
Severity Critical
Service affecting? Yes
Applicability 43STX4P
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1
Retrieve all the alarms reported at OT port. Check if there is a signal degraded alarm
reported, such as DEGOTU. Perform the corrective action for clearing the alarms found.
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2
After all signal degraded alarms are cleared, retrieve the Digital Wrapper (DW)
performance monitoring group.
CLI show interface card_type shelf slot L1 PM DW
WEBUI Select the affected 43STX4P port, and at the top of the WebUI window, click
Performance.
On the PM Data window, select
Digital Wrapper in the PM Group field.
Click
Submit.
Trouble-clearing procedures
MODOUTOOR
MODOUTOOR (Modulator output power out of range)
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2-198
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
E ND OF STEPS
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