Fujitsu SPARC M10-4 Service Manual page 473

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29.3 Enabling the Removal of the
Dedicated Power Distribution Unit
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29.3.1 Active/Cold maintenance
Caution -
Open the rack door.
Disconnect all the power cords of the SPARC M10-4S and crossbar boxes
from the PDU requiring maintenance.
Note -
29.3.2 System-stopped maintenance
Open the rack door.
Stop the entire system.
Disconnect all the power cords of the SPARC M10-4S and crossbar boxes
from the PDU requiring maintenance.
Note -
Chapter 29 Maintaining the Dedicated Power Distribution Unit Mounted on the Rack for Expanded Connection 449