2746 Pci Twinaxial Workstation Ioa; 9720 Base Pci Wan/Twinaxial Ioa - IBM i series Handbook

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to the workstation controller polls. Therefore, these addresses count as an active address
even when no device description exists on the AS/400 system. This can occur when the
QAUTOCFG system value is set to *NO. Further considerations include:
• When a device has multiple addresses defined for multiple sessions to support jump
screen or to support an attached printer, each session counts towards the maximum
active addresses supported by that workstation controller.
• When a device has a single address defined with shared sessions, that device counts
as one of the maximum active addresses and up to four of the maximum shared
sessions.
There is a maximum of 300 shared sessions per IOP. Refer to the count of active sessions
table on page 126 for a reference of the types of sessions that count toward the maximum
number of active sessions. You should also refer to "5250 Express Data Stream" on page 126
for workstation considerations.
When ordered, the Multifunction I/O Processor has a selection of features that determine
whether a 5250-type device (#9720) or Operations Console (#0398) is to be used as a
console.
The following workstation controllers can be attached to the Model 250:
• #2746 PCI Twinaxial Workstation IOA
• #9720 Base PCI WAN/Twinaxial IOA

#2746 PCI Twinaxial Workstation IOA

The #2746 is an 8-port twinaxial workstation IOA with a 20-foot attachment cable for
attaching up to 40 5250-type displays and printers. Each port supports seven attached
addresses allowing for up to 56 attached addresses, of which only 40 can be active. When
the attached display supports address sharing, a maximum of 120 shared sessions are
supported. The #2746 is specified when additional PCI twinaxial workstation controllers are
required and can be installed in either high or low speed slots.

#9720 Base PCI WAN/Twinaxial IOA

The #9720 combined twinaxial and communications adapter is a base option on the Model
250. A cable with a 4-port expansion box comes with this adapter. Each port supports seven
attached addresses, for a total of 28 attached addresses per #9720. When the attached
display supports address sharing, a maximum of 112 shared sessions are supported. This
adapter also supports a single communication line. See "#9720 Base PCI WAN/Twinaxial
IOA" on page 100.
iSeries Model 250 Packages and AS/400e Server 250
iSeries Model 250 Packages and AS/400e Server 250
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