42 | Barracuda 36 Installation Guide, Rev. B |
LW drives
Other applicable jumper options
Other option jumpers are available as illustrated in Figures 9 and 10.
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 |
| L | R |
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Reserved E | E A | 3 | A | 2 | A | 1 | A | 0 | |
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Reserved |
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Remote | 11 |
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LED | 12 |
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| CATH |
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Shipped with cover installed. |
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Do not remove. |
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Do not install jumpers |
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on these four positions. |
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Drive Front |
| J6 |
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| Jumper Type | |||||
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| (enlarged to |
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| show detail) |
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| Pin 1 | |
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| End |
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| J2 |
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| Pin 1 |
DC Power |
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Connector |
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SCSI I/O |
| J2 Jumper Type | |||||||
Connector |
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show detail)
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| Pin 1 |
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| [1] |
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Low voltage differential |
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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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(default). The drive |
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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 |
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SCSI bus. |
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Disable parity check. |
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[1] See Figure 10 for this jumper position option for “LW” drives.