Barracuda 4LP Installation Guide, Rev. B | 43 |
W/WD drives
Terminator power
There are three 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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Term. Power from SCSI Bus |
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“WD” model drives |
| Position A | |
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Pin 1
(default)
Term. Power to SCSI Bus
Host adapter or other device provides 
term. power to external terminator. 
(default)
| J6 | J2 |
| SCSI I/O J1 | |
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| Connector |
| Drive |
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J2 Jumper Type | Front |
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| DC Power | |
(enlarged to |
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show detail) |
| Connector |
