Barracuda 9 Installation Guide, Rev. B | 33 |
N drives
Terminating the drive
ST19171N drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the jumper from pins 15 and 16 of connector J2 (see Figure 6). If you install the drive on the end of the SCSI bus, enable termina- tion by installing a jumper on pins 15 and 16 of connector J2.
Pin 1
J2 | R | |
| T D M W P E T T | |
| E S E P D S P P | |
Enable SCSI terminator (default) |
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Disable SCSI terminator |
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J6 | J2 | |
SCSI I/O J1 | ||
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| Connector | |
Drive |
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Front |
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J2 Jumper Type | DC Power | |
Connector | ||
(enlarged to | ||
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show detail) |
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