44 | Barracuda 4LP Installation Guide, Rev. B |
W/WD drives
Other applicable jumper options
Other option jumpers are available as illustrated below.
Drive with |
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HDA up, PCB |
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down, viewed |
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from front | HDA |
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| J6 |
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| L | R |
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| Reserved E | E A | 3 | A | 2 | A | 1 | A | 0 |
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| D | S |
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Reserved |
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11 |
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Remote |
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LED | CATH |
12 |
Shipped with cover installed.
Do not remove.
Do not install jumpers on these four positions.
| J2 |
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| Pin 1 |
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Reserved |
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Delay Motor Start option |
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(valid only if the Enable |
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Motor Start jumper is |
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not connected) |
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Disable the Delay Motor |
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Start option. |
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Motor start delay equal |
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to the SCSI ID multiplied |
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by 12 seconds. For |
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example, if the SCSI |
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ID = 2, the drive starts |
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in 24 seconds. |
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Motor Start option |
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Disable motor start |
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Drive Front | J6 |
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J2 
DC Power
Connector
J1
J6
Jumper Type (enlarged to show detail)
Pin 1
End
Pin 1
(default). The drive | (default) | |||||||
starts according to the | ||||||||
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Delay Motor Start option. |
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Enable motor start. The |
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drive waits for the Start |
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Unit command from the |
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host before starting the |
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spindle motor. |
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Write Protect option |
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Write protect = Off |
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(enables writing. |
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Write protect = On |
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(disables writing). |
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Parity Check option |
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Enable parity check of | (default) | |||||||
SCSI bus. | ||||||||
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SCSI I/O
Connector J2 Jumper Type (enlarged to
show detail)
Disable parity check. |