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Cisco ONS 15600 SDH Reference Manual, Release 9.0
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Chapter 1 Shelf and Backplane Hardware
1.11.4 Card Replacement
Note
An improper removal (IMPROPRMVL) alarm is raised whenever a card pull is performed, unless the
card is deleted in CTC first. The alarm will clear after the card replacement is complete. If the alarm
does not clear, refer to the “Alarm Troubleshooting” chapter in the
Cisco ONS 15600 SDH
Troubleshooting Guide
.