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42 Barracuda 2LP Installation Guide, Rev. E
W/WD drives
Other applicable jumper options
Other option jumpers are available as illustrated below.
J2
Pin 1
Enable parity check of SCSI bus (default).
Disable parity check.
J2
Pin 1
Pin 2
Reserved
Parity Check option
Write protect = Off (enables writing – default)
Write protect = On (disables writing)
Write Protect option
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.
Delay Motor Start option (valid only if
the Motor Start jumper is not connected)
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.
Motor Start option
Figure 14a. Additional jumper options