Barracuda 9LP Installation Guide, Rev. E | 49 |
W/WD drives
Terminator power
There are four possible terminator power (TP) configurations for “W” model drives (see Figure 14). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory.
There are two possible terminator power (TP) configurations for “WD” model drives (see Figure 14).
J2 |
| R | |
“W” model drives | T D M W P E T T | ||
E S E P D S P P | |||
Term. Power from Drive |
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Term. Power to SCSI Bus |
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Drive furnishes power both to its |
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own terminators and to SCSI bus |
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Term. Power from SCSI Bus |
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| Position A | |
| R | R R | |
“WD” model drives | E D M W P E E T | ||
S S E P D S S P | |||
Term. Power to SCSI Bus |
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Host adapter or other device provides |
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term. power to external terminator. |
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Pin 1
(default)
(default)
J2 Jumper Plug
(enlarged to show detail)
J2
J6
Drive
Front