Scsi Cables And Scsi Termination - Dell Dimension XPS D Series Reference And Troubleshooting Manual

3-20 Dell Dimension XPS D xxx Systems Reference and Troubleshooting Guide
hard-disk drive access indicator on the computer's front panel whenever a SCSI
hard-disk drive is accessed.
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If you are installing an internal SCSI device , firmly press the SCSI cable's header
connector onto the 50- or 68-pin connector on the back of the device. The con-
nectors on narrow SCSI cables are keyed for proper positioning—a raised area on
the outside of the header connector fits into a notch on the device connector. The
connectors on wide SCSI cables are shaped so that they can be attached one
way only.
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If you are installing an external SCSI device , connect one end of the external SCSI
cable to the SCSI bus connector on the back of the device.
For additional instructions on connecting SCSI devices, refer to "SCSI Cables and
SCSI Termination" found earlier in this section.
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If you are installing an internal SCSI device , match the colored strip on the inter-
nal SCSI cable to the pin-1 end of the 50-pin connector (for a narrow SCSI device)
or the 68-pin connector (for a wide SCSI device) on the adapter card. Then press
the cable connector firmly onto the adapter card connector.
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If you are installing an external SCSI device , connect the other end of the external
SCSI cable to the external connector on the adapter card.
For additional instructions, refer to the documentation that came with the adapter
card.
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If you are installing an internal SCSI device , connect a DC power cable to the
power input connector on the SCSI device.
If you are installing an external SCSI device , connect the socket end of the power
cable to the AC power receptacle on the back of the SCSI device. Insert the other
end of the power cable into an electrical outlet.
Check all other cable connections. Fold all internal cables out of the way to pro-
vide airflow for the fan or cooling vents.
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