IBM i series Handbook page 298

Towers and Racks
• #0127 270 Field Install in Rack Specify
– The #0127 feature denotes that a Model 270 system is to be mounted in the #0551
rack (either top or bottom). Mounting hardware is included.
– Feature #7104 System Unit Expansion is required in order for an iSeries server 270 to
mount in a #0551 rack.
– If the system unit is installed in the upper rack position and is not cabled to a PDU,
then a 14-ft line cord is required.
• #0578 PCI Expansion Unit in Rack
– The #0578 is the rack mounted equivalent of a #5078 PCI Expansion Unit and may be
installed in any #0550 or #0551 rack with available space. See "#5078 PCI Expansion
Unit" on page 249 for a description of the capabilities of the #5078.
– A #5078 cannot be converted to an #0578.
– A #0578 may be part of an initial order, an upgrade, or added to an existing system
with enough available space in a #0550/#0551 rack.
– The #0578 occupies eight EIA units in a rack. Up to four #0578s may be mounted in a
#0551 depending on the amount of empty space available in the rack. One #0578 may
be installed in a #0550 Rack above the 830 server. An #0578 may be placed in a
#0551 rack with a 270 server. However, there is no support for attaching the #0578 to
the 270 server.
– Select any two of these HSL cables if the #0578 is the first or only tower/unit of an
HSL loop. For additional units on an HSL loop, select one HSL cable per unit.
• #1460 - 3m Copper HSL cable
• #1461 - 6m Copper HSL cable
• #1462 - 15m Copper HSL cable
• #1470 - 6m Optical HSL cable (Models 830 and 840 only)
• #1471 - 30m Optical HSL cable (Models 830 and 840 only)
• #1472 - 100m Optical HSL cable (Models 830 and 840 only)
• #1473 - 250m Optical HSL cable (Models 830 and 840 only)
Note: The #1462 15m HSL cable can only be used on HSL port A1 of the Model 820
to directly connect a #5033, #5034, or #5035 Migration Tower I.
– Select one of these SPCN cables per #0578:
• #1463 - 2m SPCN cable
• #1464 - 6m SPCN cable
• #1465 - 15m SPCN cable
• #1466 - 30m SPCN cable
• #0369 - 100m Optical SPCN cable
• #1468 - 250m Optical SPCN cable
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iSeries Handbook