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W/WD drives
Other applicable jumper options
Other option jumpers are available as illustrated below.
Reserved
Parity Check option
Enable parity check of SCSI bus (default).
Disable parity check.
Write Protect option
Write protect = Off (enables writing – default)
Write protect = On (disables writing)
Motor Start option
Enable motor start. The drive waits for the Start
Unit command from the host before starting the
spindle motor.
Disable motor start (default). The drive starts
according to the Delay Motor Start option.
Delay Motor Start option (valid only if
the Motor Start jumper is not connected)
Disable the Delay Motor Start option (default).
Motor start delay equal to the SCSI ID multiplied
by 10 seconds. For example, if the SCSI ID = 2,
the drive starts in 20 seconds.
Figure 14a. Additional jumper options
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Barracuda 2LP Installation Guide, Rev. E
Pin 1
J2
J2
Pin 2
Pin 1
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