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18          Hawk 1LP Family Installation Guide, Rev. D
DC Power connection
"N" and "ND" model family drives receive DC power
through a 4 pin connector mounted on the PCB next to
the SCSI I/O connector. See figure below.
Figure 1. DC power connection, 50 pin SCSI I/O
connector
"NC" model drives receive power from the host com-
puter through the 80 pin combined SCSI I/O and power
connector. No separate DC power connector is pro-
vided on the drive.
SCSI address selection
On "N" and "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 3a and 3b
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
DC Power
Connector
4
3
2
1
50 Pin
SCSI I/O
Connector
Pin
1
2
3
4
Power
+12V
+12V RET
+  5V RET
+  5V