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20
ST11200 Family Install Guide
SCSI address selection
On "ND" model drives, make sure that the SCSI bus
address jumper(s) are properly set for the bus address
assigned to the drive. See figures at beginning of
Section 3 showing the bus address select header and
the jumper configurations that select addresses 0
through 7. Typically the primary boot device is set to ID
0, and the subsequent SCSI drives are jumpered in
ascending order. Bus addresses 0 through 6 should be
used (the host adapter usually uses address 7). On
"NC" model drives the SCSI ID can be, and presumably
will be set over the 80 pin interface by the host com-
puter. Unless directed to by the host system documen-
tation, no jumpers should be installed for address
selection on "NC" models. The host also has complete
control over motor starting, so no motor start jumper is
required. If the drive LED shows no on/off activity when
the host is trying to communicate with it, an incorrect
bus address selection at the drive should be suspect-
ed.
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