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2x5 PCI + 2x2 ISA Backplane
2x5 PCI + 2x2 ISA Backplane (ERS/FT II System Only)
Used only with the active PCI-to-PCI bus extender card, this backplane provides two groups
of five PCI slots, and two groups of two ISA slots (see IMPORTANT NOTE).
In each five-slot group a BC 5xxxSE,SP, TE or TS with extender card and up to four PCI
adapters can be supported. The two-slot groups each support up to two ISA adapters or, one
BC ISA processor and one ISA adapter each. Generally used to support dual server
applications, this backplane is field configurable to support a wide range
of configurations.
IMPORTANT NOTE!
Figure 1 illustrates the slot locations at which bus shunts, BC boards with extender
cards, and PCI or ISA adapters may be installed. Reference to bus shunts 1, 2, and 3
is to illustrate the location at which a shunt may be lnstalled, not to validate
three shunts installed simultaneously to create one bus. Doing so constitutes an
"illegal" configuration and is not supported by Cubix Corporation. See Table 1
for a list of configurations supported by the 2x5 PCI + 2x2 ISA backplane.
Figure 1
2x5 PCI + 2x2 ISA
Legend for Table 1:
= Bus Shunt not installed
= Bus Shunt Installed
Note: This backplane supports a maximum of two shunts. Installing three shunts constitutes an illegal configuration that is not supported by Cubix Corporation.
Table 1
2x5 + 2x2 Backplane Configurations
| Shunt 1 |
Shunt 2 |
Shunt 3 |
Configuration |
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Four separate buses: PCI Group 1 consisting of five slots: Slot 1 supports the BC processor and extender card Slots 2 - 5 support one PCI adapter each ISA Group 1 consisting of ISA slots 6 and 7 to support one BC and ISA adapter ISA Group 2 consisting of ISA slots 8 and 9 to support one BC and ISA adapter PCI Group 2 consisting of five slots: Slot 10 supports the BC processor and extender card Slots 11 - 14 support one PCI adapter each |
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Two separate buses: PCI Group 1 and ISA Group 1 comprise the first bus. Supports one BC with PCI extender card, four PCI adapters and two ISA adapters PCI Group 2 and ISA Group 2 comprise the second bus. Supports one BC with PCI extender card, four PCI adapters and two ISA adapters |
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Two separate buses: PCI Group 1 and ISA Group I and 2 comprise the first bus. Supports one BC with PCI extender card, four PCI adapters and four ISA adapters. PCI Group 2 is the second bus. Supports one BC with PCI extender card and four PCI adapters. |
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Two separate buses: PCI Group 1 is the first bus. Supports one BC with PCI extender card and four PCI adapters. PCI Group 2 and ISA Group I and 2 comprise the second bus. Supports one BC with PCI extender card, four PCI adapters and four ISA adapters |
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Three separate buses: PCI Group 1 is the first bus. Supports one BC with PCI extender card and four PCI adapters. ISA Group 1 and 2 combined creates the second bus. Supports one BC and three ISA adapters. PCI Group 2 is the third bus and can support one BC with PCI extender card and four PCI adapters. |
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Three separate buses: PCI Group 1 shunted to ISA Group 1 creates the first bus. Supports one BC with PCI extender card, four PCI adapters and two ISA adapters. ISA Group 2 is the second bus. Supports one BC and one ISA adapter. PCI Group 2 is the third bus. Supports one BC with PCI extender card and four PCI adapters. |
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Three separate buses: PCI Group 1 is the first bus. Supports one BC with PCI extender card and four PCI adapters. ISA Group 1 is the second bus. Supports one BC and one ISA adapter PCI Group 2 shunted to ISA Group 2 creates the third bus. Supports one BC with PCI extender card, four PCI adapters and two ISA adapters |
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