Seagate Hawk 4XL Installation Manual page 41

Hawk 4XL Installation Guide, Rev. A
Other applicable jumper options
Several other jumper options are available as illustrated.
Drive with
HDA up, PCB
down, viewed
from front
Reserved
Reserved
Remote
LED
Shipped with cover installed.
Do not remove.
Do not install jumpers
on these four positions.
Drive Front
DC Power
Connector
SCSI I/O
Connector
Figure 10. Additional jumper options
Pin 1
HDA
J6
L R R
E E E
A 2 A 1 A 0
D S S
11
12
CATH
J6
Jumper Type
(enlarged to
show detail)
Pin 1
End
J2
Pin 1
J1
J2 Jumper Type
(enlarged to
show detail)
Reserved
Delay Motor Start option
(valid only if the Enable
Motor Start jumper is
not connected)
Disable the Delay Motor
Start option.
Motor start delay equal
to the SCSI ID multiplied
by 12 seconds. For
example, if the SCSI
ID = 2, the drive starts
in 24 seconds.
Motor Start option
Disable motor start.
The drive starts
J6
according to the
Delay Motor Start option.
Enable motor start. The
drive waits for the Start
Unit command from the
host before starting the
spindle motor.
Write Protect option
Write protect = Off
(enables writing).
Write protect = On
(disables writing).
Parity Check option
Enable parity check of
SCSI bus.
Disable parity check.
N drives
J2
Pin 1
(default)
(default)
(default)
(default)
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