A-4 AlphaServer DS20 User’s Guide
A.2
Split-Bus Configuration
The H8253-AA kit allows you to convert a single bus to a split-bus. Three SCSI
controllers are required along with a second repeater.
Figure A-3 Split-Bus Configuration
W3
W2
W1
Power
Supply
System Board
StorageWorks Shelf
Repeaters
SE-A
SE-B
PCI0 SLOT 7
PCI0 SLOT 8
PCI0 SLOT 9
PCI1 SLOT 9
ISA SLOT
PCI1 SLOT 7
J10
J12
J11
J16
J13
J17
(Rear)
SE-A
SE-B
PCI1 SLOT 8
Bus A
PK0914
Bus B
Bus C
(Front)
2
3
0
1
2
1
0
Bus B
Bus C
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