Connecting To More Than One Scsi Device - Adaptec USBXchange User Manual

There are various methods for terminating hard disk drives and other
SCSI devices. Read the device documentation if you are not sure how to
do this. Here are some general guidelines for termination:
Termination is usually controlled by installing or removing a SCSI
terminator. On some SCSI devices, termination is controlled by
setting a switch on the back of the device.
Most SCSI devices come from the factory with termination enabled.
Devices which use a jumper to select a source of termination power
must be set to supply power to their own terminators.
Some devices require that termintaion power be supplied to the SCSI
bus. The USBXchange does not supply termination power. To use
these devices with the USBXchange, another device (which supplies
termination power) must be added to the SCSI bus.
An external SCSI terminator
may be required in certain
SCSI chains. (Actual
appearance may vary)

Connecting to More Than One SCSI Device

You can use the USBXchange to connect your computer to either one
SCSI device, or several SCSI devices in a series (in a SCSI chain) up to
seven devices.
If the SCSI connector on your USBXchange is not appropriate to use in
your system configuration, you may need to obtain an adapter to properly
connect the USBXchange to your SCSI device(s). You may also need
additional SCSI cables if you connect more than one SCSI device to your
USBXchange. Some of your existing SCSI devices may have already
included SCSI cables which may be appropriate to use. It is important to
use high-quality cables to ensure that data is read and written correctly.
Adaptec provides high-quality SCSI cables designed specifically for use
with the USBXchange.
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