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Barracuda 9 Installation Guide, Rev. B
68 Pin
SCSI I/O Connector
J1 Auxiliary
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
Figure 10. Using the J1 auxiliary jumper block
Drive HDA (rear view, PCB facing downward)
Pin 1
Pin 12
Pin 1
A 3 A 2 A 1 A 0
(default)
J1 Auxiliary
Pin 1
4P
3P
DC Power
Connector
J1 Auxiliary
*Fault LED
*Vendor Unique
*Spindle Sync
*Activity LED
No Connection
Ground
+5V
*
Pins 2, 4, 6, and 8 are driven low
for 250 ms after PWR ON and reset
to allow jumper-selectable SCSI ID.
W/WD drives
2P
1P
PCB
Pin 1
A 3 A 2 A 1 A 0
37
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