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Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Chapter 38
Termination or sparing panel replacement
Replace a termination or sparing panel for failure or upgrade, to restore or
maintain configured services or redundancy.
• “Prerequisites to termination or sparing panel replacement” (page 199)
• “Termination or sparing panel replacement task flow” (page 200)
Prerequisites to termination or sparing panel replacement
• Some of the procedures in this task are not located in this document.
Ensure that you have access to the required documents.
• There are two types of sparing panels, single and modular. Single sparing
panels are used for sparing most types of FPs. Modular sparing panels are
used for sparing 32-port multi-service access (MSA32) DS1 or E1 FPs.
When replacing a single sparing panel, traffic is disrupted for the time it
takes to perform the procedure.
• If you replace termination or sparing panels in the back of a seismic
cabinet containing Nortel Networks Multiservice Switch
7480s, leave
some rack space between the termination panels for each device. This
space aids airflow through the cabinet and provides space for cables.
CAUTION
Service loss for sparing configuration
Non-MSA32 FPs will experience a loss of service on
any active ports for the time it takes to replace the
termination or sparing panel.
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