Connecting Scsi Devices - Adaptec 39320D User Manual

You might want to manually terminate the SCSI card if the
Adaptec SCSI Card 39320D is connected to one or more external
SCSI devices that are also connected to a SCSI card in another
computer. The devices can be shared between the two computers if
one SCSI card is terminated when it is powered off, while the
computer with the other SCSI card is using the SCSI devices.

Connecting SCSI Devices

Here are some examples of how you can connect internal and
external SCSI devices to the Adaptec SCSI Card 39320D. Attach the
first device to the end connector of the cable (furthest from the SCSI
card); attach other devices to the connectors that are closer to the
SCSI card.
The following figure shows Ultra320/Ultra160 and Ultra2 SCSI
devices connected to internal and external SCSI connectors of both
SCSI channels. Note the built-in terminator at the end of the
internal LVD SCSI cable. The last external SCSI device on each
SCSI channel must be terminated with an LVD/SE terminator plug
to ensure that all devices will operate properly.
Built-in Terminator on
Cable
Using the Adaptec SCSI Card 39320D and SCSI Devices
Terminated Device
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