Connecting SCSI Devices. Adaptec 29320LP

Below you will find brief information for SCSI controller 29320LP. The Adaptec SCSI Card 29320LP enables you to connect up to 15 Low Voltage Differential (LVD) and/or 15 Single-Ended (SE) SCSI devices—such as very large arrays of high-performance hard disk drives, external storage subsystems, Ultra320/160 hard disk drives, tape drives, scanners, and CD-ROM drives—to any Intel-based computer with 64- or 32-bit PCI/PCI-X expansion slots. The Adaptec SCSI Card 29320LP is a single channel SCSI card with a maximum throughput of 320 MB/sec. You can connect Ultra320/160 and Ultra2 SCSI devices to the internal 68-pin Low Voltage Differential/Single-Ended (LVD/SE) connector and the external very high-density cable interconnect (VHDCI) connector. Although the Adaptec SCSI Card 29320LP is a 64-bit PCI/PCI-X card, it also works in a 32-bit PCI slot. When installed in a 32-bit PCI slot, the card automatically runs in the slower 32-bit mode.

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Connecting SCSI Devices

You can connect a total of up to 15 LVD and/or 15 SE SCSI devices to the Adaptec SCSI Card 29320LP. Before connecting devices, be sure to review

Setting Up SCSI Devices on page 4 .

Connecting Internal Ultra320/160 and Ultra2 Devices

A special 68-pin internal LVD cable is provided to connect up to 4 internal Ultra320/160 or Ultra2 SCSI devices.

The Adaptec SCSI Card 29320LP has one internal LVD/SE connector to which you can connect internal SCSI devices.

Note:

Adaptec recommends that you keep your Ultra320/160 and Ultra2 SCSI devices separate from your Ultra SCSI devices. If you connect a legacy SCSI hard disk drive to the

Adaptec SCSI Card 29320LP LVD/SE connectors, the

Ultra320/Ultra160 and Ultra2 SCSI hard disk drives will slow to Ultra SCSI performance levels.

Follow these steps to connect your internal Ultra320/160 and

Ultra2 devices:

Locate the 4 drop 68-pin internal LVD SCSI cable shown as follows.

Plug the nonterminated end of the cable(s) to one of the internal

LVD/SE connectors.

Plug the internal Ultra320/160 and Ultra2 SCSI devices to the other cable connectors, starting with the connector at the terminated end of the cable.

Ultra320/160 or Ultra2

SCSI devices

Plug first device to this connector

Built-in terminator on cable

Note:

Internal Ultra320/160 and Ultra2 SCSI devices come from the factory with termination disabled and cannot be changed. Proper termination is provided by the terminator at the end of the LVD SCSI cable.

Connect a power cable from your computer’s internal power supply to each internal SCSI device.

Connecting External SCSI Devices

You can connect external Ultra320/160 and Ultra2 SCSI devices to the 68-pin external LVD/VHDCI connector. Each external device will require a 68-pin VHDCI external LVD SCSI cable.

Follow these steps to connect your external SCSI devices:

Connect one end of an external SCSI cable to the external

Ultra320/160 connector on the Adaptec SCSI Card 29320LP.

68-pin external

LVD/VHDCI SCSI connector

VHDCI external LVD

SCSI cable

(Not provided)

Connect the other end of the cable to a SCSI connector on the back of an external device. If you are installing only one external device, terminate the device and skip to Step 4.

SCSI terminator