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General Rules for System Configuration
D-7
D
Figure D-3
SBus Card Locations
The example in Table D-1 shows how five DSBE/S cards and two FSBE/S
cards might be distributed on three system boards. (Board slots 3–9 are empty
in this example. D=DSBE/S, F=FSBE/S.)
Table D-2 SBus Slot Requirements for the System Master
Slot
SBus Card
Comments
SBus 0
DSBE/S or DWIS
Interface to root disk and, if DSBE/S, to twisted-pair Ethernet Interface
SBus 1
CGSIX
CGSIX is present if a monitor is part of machine configuration, otherwise the slot is used as
general SBus connector
SBus 2
Available
General SBus connector
SBus 3
FSBE/S
To SCSI box
Table D-3 Example of SBus Card Distribution
Board Slot Number
9
8
7
6
5
4
3
2
1
0
Board present?
No
No
No
No
No
No
No
Yes
Yes
Yes
SBus slot 0
—
—
—
—
—
—
—
D
D
D
SBus
slot 0
SBus
slot 1
SBus
slot 2
SBus
slot 3