
SCSI Bus Termination 2-25
Figure 2.18 Termination Override Switch Settings for U1 and U2
2.3.5 Setting SCSI IDs
You must set each SCSI device and the host adapter to a separate SCSI
ID, 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it
the highest priority on the SCSI bus. If you plan to boot your computer
from a SCSI hard disk drive on the SCSI bus, that drive should have
SCSI ID 0, or the lowest SCSI ID on the bus. Chapter 3, Configuring the
Host Adapter, explains how to set the host adapter ID using the Symbios
SCSI Configuration utility.
1
2
3
4
Default settin
. Autotermination will
work as desi
ned.
NO
1
2
3
4
NO
Simulates a device on the Internal 50
in
connector. Use this switch onl
when a
device is connected to the internal 50
in
connector that does not
round
in 22,
like another LSI Lo
ic host ada
ter.
1-INT50
1
2
3
4
NO
Simulates a device on the Internal 68
in
connector. Use this switch onl
when a
device is connected to the internal 68
in
connector that does not
round
in 50,
like another LSI Lo
ic host ada
ter.
2-INT68
1
2
3
4
NO
Forces termination ON the u
er data
lines. Use this switch when a narrow 8-bit
device is connected to one of the 68
in
connectors.
3-UPPER TERM
1
2
3
4
NO
Simulates a device on the External 68
in
connector. Use this switch onl
when a
device is connected to the external 68
in
connector that does not
round
in 50,
like another LSI Lo
ic host ada
ter.
4-EXT68
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