Multiservice Switch 7420 Replacement - Nortel Multiservice Switch 7400 Installation & Maintenance

Multiservice Switch 7420 replacement

Replace a Nortel Multiservice Switch 7420 if a non-replaceable component
fails, for example, a fan failure or a failed power supply.
Prerequisites to Multiservice Switch 7420 replacement
• Before you can replace a shelf, you must assemble enough anti-static
packaging to protect the processor cards, and clear an area large enough
to temporarily store them. You also need to have appropriate packaging
materials so that you can store or ship the removed shelf. See
a processor card (page 469)
• Some of the procedures in this task are not located in this document.
Ensure that you have access to the required documents.
Multiservice Switch 7420 replacement task flow
This task flow shows you the sequence of procedures to perform to replace a
Multiservice Switch 7420. To link to any procedure, go to
(page
Copyright © 2005, Nortel
CAUTION
Service loss due to outage
Replacing a device removes it from service for the duration of the
replacement. Minimize the impact of the outage by rerouting traffic to
other nodes in the network before powering down the device.
CAUTION
Risk of electrostatic damage
When handling processor cards, wear a grounded antistatic wrist
strap so that you do not damage electronic parts. For more
information, see Avoiding damage from static electricity (page
16).
Nortel Multiservice Switch 7400
Hardware Installation, Maintenance, and Upgrade
NN10600-175 7.1S1 Standard
PCR7.1 and up October 2005
for FP and CP handling instructions.
Task flow navigation
135).
Unpacking
Nortel Confidential