192 Chapter 36 Power supply replacement
NN10600-175 6.1S2
Power supply replacement task flow
This task flow shows you the sequence of procedures you do to replace a
power supply. To link to any procedure, go to
“Task flow navigation”
(page 193).
CAUTION
Risk of service loss
If a device does not have redundant power, a software
operator must remove the device from service before a
hardware installer removes a power cable or power
supply. For information about minimum and redundant
power configurations, see NN10600-170 Nortel
Networks Multiservice Switch 7400 Hardware
Description.
CAUTION
Risk of equipment damage
You must not install one ac power supply and one dc
power supply in the same Multiservice Switch device.
WARNING
Damage to equipment by electromagnetic interference
Each empty power supply bay must be filled with a power
supply filler (blank) in order to meet electromagnetic
interference (EMI) regulatory requirements and thermal
specifications. Power supply fillers are removed and
installed using the same procedure as for power supplies.
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