IBM i Series

iSeries Model 820
148 iSeries Handbook
single input/output adapter (IOA) may have been assigned to a single IOP. This resulted in
unassigned slots in the tower, and valuable slots were left vacant.
This PCI I/O structure enables customer setup of the Model 820 and selected features on all
models. It also enables Hot Plug PCI for adding and replacing hardware without taking the
server down. A full understanding of configuration rules associated with the various I/O
features of the iSeries server is required.
These functions do not have equivalent function PCI cards for the Model 820:
• ASCII Adapter
• V.25 Autocall cable
• Select standby mode
• X.21 switched WAN dial-up or Shorthold Mode WAN
• Asynchronous communication speeds of less than 300 bps
• Data Rate Select signal on the EIA 232/V.24 interface. This function is used by some
older 2400 bps modems to reduce the speed to 1200 bps.
• LPDA-1 (Link Problem Determination Aids). This is a diagnostic function supported by
some (primarily older IBM) modems.
• V.54 local and remote loopback (diagnostics functions supported by some modems)
The fundamental bus architecture of the iSeries server is unchanged when using PCI
adapters. The AS/400e IOP continues to off load the main processor; isolate the host from
the adapter and network errors; and manage, configure, and service the adapters. PCI
architecture offers advantages in flexibility over non-iSeries or non-AS/400e server
structures.
Processor Features
• #0150 Model 820 Processor (SStar 600 MHz Uni) (CCIN 25BC)
– Includes 600 MHz Oscillator, Smart Chip VPD Card
– Includes one 2 MB L2 with 600 MHz Oscillator, Smart Chip VPD Card
– Includes Base I/O Backplane with Common Service Processor (CSP) (CCIN 282D)
Provides support for the Service Processor, nine 32-bit PCI slots and three 32 or
64-bit PCI slots.
• #0151 Model 820 Processor (SStar 600 MHz 2-way) (CCIN 25BD)
– Includes one 4 MB L2 with 600 MHz Oscillator, Smart Chip VPD Card
– Includes Base Main Storage Expansion Card with CSP (CCIN 2884)