Adaptec USB2Xchange User Manual page 14

If your device has a different connector than the one provided on
the USB2Xchange, a 50-pin High-Density to 25-pin SCSI converter
(Adaptec part # ACK-DB25M-50HDF) is available for purchase on
the Adaptec Web site. Additionally, Adaptec provides a wide
range of SCSI cables designed specifically for use with SCSI
devices. Go to the Adaptec Web site at www.adaptec.com for more
information.
To connect your USB2Xchange adapter to your SCSI devices:
1 Prepare your device(s) for connection by setting the SCSI IDs and
termination. See
on page 25 for more information.
2 Connect the USB2Xchange adapter to the first SCSI device, as
shown in the figure below.
Depending on the SCSI device connector type, you can either
attach the SCSI connector of the USB2Xchange directly to your
SCSI device, or you may require an additional cable or
converter.
Note: Do not power on the SCSI device until it is attached to
the USB2Xchange adapter.
3 Fasten the cable securely using the built-in locking clamps.
4 If you are connecting only one device, terminate the device.
Refer to your device's documentation for instructions.
SCSI IDs on page 24
Installing USB2Xchange
and Terminating the SCSI Bus
4