IBM i series Handbook page 297

– This specify code is only valid when two iSeries 270 servers are ordered at the same
time for simultaneous delivery. One system must specify #0551 and #0121, while the
second system specifies #0122.
– The two 270 servers combined require 30 EIA units in the lower part of the #0551
rack. This leaves six EIA units available at the top of the rack for additional devices.
– Each iSeries server 270 is an independent system.
– Feature #7104 System Unit Expansion is required in order for an iSeries server 270 to
mount in a #0551 rack.
– The 270 server may be powered by the Power Distribution Unit (PDU), if installed,
using #1422 PDU Line Cord. If no PDU is installed, a valid 14-foot country specific
line cord must be ordered.
Note: Two line cords are required.
– Certain upgrade paths are not supported when an iSeries server 270 is installed in a
#0551 rack. Information on supported upgrade paths may be found in "Model 270
Upgrades" on page 130.
• #0123 #5074 Lower Unit in Rack Specify
– The #0123 may be ordered to place a #5074 PCI Expansion Tower in a #0551 rack
when shipped from manufacturing.
– The #0123 cannot be used to convert an existing #5074 to mount in a rack.
– The #5074 occupies 18 EIA units in the lower part of the #0551 rack. This leaves 18
EIA units available at the top of the rack for additional devices.
– Feature #5101 30-Disk Unit Expansion is required in order for a #5074 to mount in a
#0551 rack.
– The #5074 PCI Expansion Unit cannot be powered by the Power Distribution Unit
(PDU). A valid country specific line cord must be ordered.
• #0125 #9079 Lower Unit in Rack Specify
– The #0125 may be ordered to place the #9079 Base I/O Tower in a #0551 rack when
shipped from manufacturing as part of an order for an iSeries server 840.
– The #0125 cannot be used to convert an existing #9079 to mount in a rack.
– The #9079 occupies 18 EIA units in the lower part of the #0551 rack. This leaves 18
EIA units available at the top of the rack for additional devices.
– The #5074 PCI Expansion Unit cannot be powered by the Power Distribution Unit
(PDU). A valid country specific line cord must be ordered.
Towers and Racks
267
Towers and Racks