Chapter 7. IBM iSeries 820, 830, and 840 features and placement 235
#5078 #5078 PCI Expansion Unit
The #5078 PCI Expansion Unit is a “top hat” that installs on top of the #9079 Base I/O Tower and on top of the #5074 PCI
Expansion Tower. The #5078 has 14 PCI slots, which allows up to 11 PCI IOAs to be added. The PCI IOAs are supported
(driven) by #2843 PCI IOPs, #2790 PCI Integrated Netfinity Server, and #2791/#2792/#2799 PCI Integrated xSeries
Servers.
Disk units and removable media devices are not supported and cannot be installed in the #5078 PCI Expansion Unit. The
#5078 includes a bus adapter to provide the HSL interface to the system. The IBM marketing configurator adds to the order
and defaults to copper HSL:
#9691 Base Bus Adapter (copper HSL)
#9739 Base Optical Bus Adapter (HSL)
The two electrical cables of the #5078 connect to the power source in the #5074/#9079. The #5078 can be ordered with a
#5074/#9079 on initial orders and the #5074/#9079 ships with the #5078 installed. The #5078 can also be ordered as an
MES install on an existing #5074/#9079.
The #5078 can be on the same HSL loop as the #5074/#9079, or it can be on a separate HSL loop from the #5074/#9079.
If the #5078 and the #5074/#9079 are on the same HSL loop, then a #1460 - 3 m Copper HSL Cable should be included
in the order (for both initial orders and for MES orders) to connect the #5078 and the #5074/#9079.
If the #5074/#9079 and the #5078 are on separate HSL loops, then one or two of the following HSL cables must be on the
order. Select two HSL cables if the #5078 is the first or only expansion tower/unit on an HSL loop. Select one HSL cable if
the #5078 coexists with other expansion towers or units on an HSL loop:
#1460 - 3 m Copper HSL Cable
#1461 - 6 m Copper HSL Cable
#1462 - 15 m Copper HSL Cable
#1470 - 6 m Optical HSL Cable
#1471 - 30 m Optical HSL Cable
#1472 - 100 m Optical HSL Cable
#1473 - 250 m Optical HSL Cable
#1474 - 6 m HSL to HSL-2 Cable
#1475 - 10 m HSL to HSL-2 Cable
Select one of the following SPCN cables per expansion unit:
#0369 100 m Optical SPCN Cable
#1463 - 2 m SPCN Cable
#1464 - 6 m SPCN Cable
#1465 - 15 m SPCN Cable
#1466 - 30 m SPCN Cable
#1468 - 250 m Optical SPCN Cable
The #1462 cannot be used to connect to HSL port A1 on the Model 820.
Prerequisite: #5074 PCI Expansion Tower (1.8 m) or #9079 Base I/O Tower
The #5078 is supported for migration on a #5094 PCI-X Expansion Tower.
Supported on Models 820, 830, 840
Not supported on the #5079, #8079
Maximum: One per #5074 PCI Expansion Tower, one per #9079 Base I/O Tower
The #5078 was withdrawn from marketing on 01 October 2004. The recommended replacement is a #5088 PCI-X
Expansion Unit.
