IBM RS/6000 7014-S00

Power Distribution Bus
A Model S00 rack may contain one or two power distribution busses (PDBs). A PDB
contains eight unswitched 200 V to 240 V AC outlets for providing power to all the
devices and drawers in the rack. Each outlet is connected to a separate circuit
breaker for protection against excessive currents.
1-2 7014 Model S00 Rack Installation and Service Guide