Seagate BARRACUDA 50 ST150176LW/LC User Manual

Page 36

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34

Barracuda 50 Installation Guide, Rev. A

Figure 13. Additional jumper options

S
E

D
S

M

E

W

P

P
D

R
E
S

R
E
S

T
P

J2

Pin 1

Pin 2

Enable parity check of SCSI bus (default).

Disable parity check.

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 12 seconds.
For example, if the SCSI ID = 2, the drive starts in 24 seconds.

Delay Motor Start option
(valid only if the Enable 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

Force the drive to operate only in single-ended mode.

Use single-ended or low voltage differential mode.

Single-Ended Mode option

J2 Jumper

(enlarged to

show detail)

J2

Drive
Front

J6

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