HP Xw8200 LSI 20320A-R PCI: Ultra 320 SCSI to PCI-X Host Adapters Users Guide - Page 20

SCSI Device Cables

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Step 4. Be sure to tighten the bracket screw into the bracket securely before you connect the internal and external SCSI devices. 2.2 SCSI Device Cables For reliable Ultra320 operation, be sure to use an Ultra320 rated SCSI cable. The Ultra320 SCSI cable also has built-in low voltage differential and single-ended termination. This built-in feature is included because most Ultra320 SCSI hard disk drives are not made with on-board low voltage differential termination. 2.2.1 Internal SCSI Cables You can connect all internal SCSI devices to the host adapter with an unshielded, twisted pair, 68-pin ribbon cable. Some 68-pin internal cables come with a low voltage differential and single-ended terminator on one end, which must be furthest from the host adapter. Figure 2.3 and Figure 2.4 show internal cables with and without a terminator. Figure 2.3 SCSI Cable - 68-Pin High Density with Terminator n Terminator Figure 2.4 SCSI Cable - 68-Pin High Density without Terminator 2-4 Detailed Host Adapter Installation Version 2.1 Copyright © 2002-2003 by LSI Logic Corporation. All rights reserved.

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2-4
Detailed Host Adapter Installation
Version 2.1
Copyright © 2002-2003 by LSI Logic Corporation. All rights reserved.
Step 4.
Be sure to tighten the bracket screw into the bracket securely
before you connect the internal and external SCSI devices.
2.2
SCSI Device Cables
For reliable Ultra320 operation, be sure to use an Ultra320 rated SCSI
cable. The Ultra320 SCSI cable also has built-in low voltage differential
and single-ended termination. This built-in feature is included because
most Ultra320 SCSI hard disk drives are not made with on-board low
voltage differential termination.
2.2.1
Internal SCSI Cables
You can connect all internal SCSI devices to the host adapter with an
unshielded, twisted pair, 68-pin ribbon cable. Some 68-pin internal cables
come with a low voltage differential and single-ended terminator on one
end, which must be furthest from the host adapter.
Figure 2.3
and
Figure 2.4
show internal cables with and without a terminator.
Figure 2.3
SCSI Cable – 68-Pin High Density with Terminator
n
Figure 2.4
SCSI Cable – 68-Pin High Density without Terminator
Terminator