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IBM 9309 Rack Enclosures
IBM 9309 Rack Enclosures
AS/400 9406 models support the 9309 Rack Enclosures. External I/O devices such as DASD,
magnetic tapes, and diskette units can be accommodated in these 1.6 M racks.
The 9309 Rack Enclosures provide operator control panels, acoustic noise reduction, power
control to all units within the rack (under the control of the System Unit), and power control to
the next rack. All additional racks attached to the System Unit are termed “secondary” racks.
The following 9309 Rack and System Unit Rack Enclosures are supported:
• 9309 #9171: General Purpose I/O Rack with SPCN
• 9309 #9141: General Purpose Expansion Rack without SPCN
• 9406 #5040: Bus Extension Unit Rack (9406-3X0 models only)
• 9406 #5042: System Unit Expansion Rack (9406-3X0 models only)
• 9406 #5043: Primary to Secondary Rack (for example, 9406 D, E, or F System Unit
Rack conversion to a #9171 type rack)
• 9406 #5044: System Unit Expansion Rack (9406-5X0, 620, 640, and 650 models only)
The 9309 #9141 must be connected to either a 9309 #9171 rack, a 9406 #5044 rack, or a
9406 #5043 rack for power control. However, if the 9309 #9141 rack is only going to support
tape or diskette devices, it may attach directly to the 9406 System Unit using a wrap-around
connector (part number 93X0167) and an EPO jumper (part number 6462413). Rack power
control in this case is performed manually.
The following table shows which racks can upgrade when upgrading to an AS/400 9406
model or AS/400e server model.
9309/9406 Rack Description Upgrade to
#9177
#9128
#9129
#9130
#9277
#5040*
#5042*
System Unit Rack
9332 Disk Unit Rack w/SPCN
9335 Disk Unit Rack
I/O Expansion Rack
I/O Card Unit Rack
9335 Disk Unit Rack
9406 Extension Unit
9406 System Unit Expansion
9406 System Unit Rack
#9171
#9141
#9141
#9141
#9141
#5043/#5044
#5044
#5043 (#9171 type rack)
*9406 #5040 and #5042 are supported on 9406-3XX Models. When upgrading to 9406-5X0, 620, 640, and
650 models, they are converted to a #5044 System Unit Expansion Rack.
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