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Barracuda 9 Installation Guide, Rev. B
Terminator power
There are three possible terminator power configurations for
ST19171W drives (see Figure 12). You will not normally need to
change this option and can leave the drive configured as it was
shipped from the factory.
There are two possible terminator power configurations for
ST19171WD drives (see Figure 12).
ST19171W
Term. Power from Drive (default)
Term. Power to SCSI Bus
Term. Power from SCSI Bus
ST19171WD
Term. Power to SCSI Bus (default)
Host adapter or other device provides
term. power to external terminator.
J2 Jumper Type
Figure 12. Setting terminator power jumpers
(enlarged to
show detail)
J2
T
D
E
S
Position A
J6
Drive
Front
W/WD drives
Pin 1
R
M
W
P
E
T
T
E
P
D
S
P
P
J2
SCSI I/O
J1
Connector
DC Power
Connector
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