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Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2
Chapter 4
Multiservice Switch 7440 replacement
Replace a Nortel Networks Multiservice Switch 7440 if a non-replaceable
component breaks, for example, if you have bent pins on the backplane.
• “Prerequisites to Multiservice Switch 7440 replacement” (page 51)
• “Multiservice Switch 7440 replacement task flow” (page 52)
Prerequisites to Multiservice Switch 7440 replacement
• Before you can replace a device, you must assemble enough anti-static
packaging for the processor cards, and clear an area large enough to
temporarily store all of them. You also need to have appropriate
CAUTION
Service loss due to an 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 208).
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