iSeries Model 820 155
iSeries Model 820
power subsystem, which is being upgraded for V5R1, is enabled to support dual line
cords.
High Speed Link (HSL) on Model 820
The Model 820 supports a single HSL loop. These include the #5074/#5079 or #5075 PCI
Expansion Towers (with the #5079 tower counting as two #5074s), #5078 PCI Expansion Unit
and #0578 PCI Expansion Unit in Rack and certain external xSeries servers. The loop also
supports one of: #5033, #5034, or #5035 Migration Tower I. These units provide for the
migration of existing #5073 SPD I/O towers or #5065/#5066 PCI Expansion Towers. The
following figure provides an example of the maximum supported tower configuration of a
Model 820. For further details, see
AS/400e to iSeries 400 Migration
, SG24-6055.
Note: The attachment of a migration tower reduces the total number of new I/O towers by
one.
Model 820
HSL Loop
#5075 PCI
Expansion Tower
#5074 PCI Expansion Towers
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