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WC/DC drives
Applicable jumper options
Option jumpers are available as illustrated below.
Delay Motor Start option
The host system has complete
control over motor start functions. Do
not install a jumper on these pins.
Enable Motor Start option
The host system has complete
control over motor start functions. Do
not install a jumper on these pins.
Write Protect option
Write protect = Off
(enables writing – default)
Write protect = On
(disables writing)
Parity Check option
Enable parity check of SCSI bus
(default).
Disable parity check.
Figure 14. Jumper options
Barracuda 9 Installation Guide, Rev. B
J2 Jumper Type
(enlarged to
show detail)
J2
R
E
D
S
S
J6
Drive
Front
DC Power
Connector
Pin 1
R
R
R
M
W
P
E
E
E
E
P
D
S
S
S
J2
SCSI I/O
J1
Connector
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