Table of Contents
Advertisement
30
Configuring External SCSI Peripherals
TDZ-612 and TDZ-612 RAX systems are equipped with a separate Ultra SCSI controller for
external SCSI devices. If you use a non-Ultra SCSI device, data transfer rates are limited to
the device's speed.
TD-x10 and TDZ-x10 desktop systems are equipped with an Ultra SCSI controller for all
SCSI devices. If you use a non-Ultra SCSI device, data transfer rates are limited to the
device's speed.
TD-x10 and TDZ-x10 deskside systems are equipped with a separate SCSI-2 controller for
external SCSI devices. You should use only SCSI-2 devices with the external SCSI port. If
you use an Ultra SCSI device, data transfer rates are limited to the controller's SCSI-2 speed.
If you use a SCSI-1 device, data transfer rates are limited to the device's speed.
CAUTION
Using a non-compliant SCSI-1 device with your system may cause your system to stop
working, or lead to other unpredictable results.
You can use up to five external single-ended SCSI devices with a desktop system, and up to
seven external single-ended SCSI devices with a deskside system. The total length of the
external SCSI cables depends on the number of devices connected to the SCSI adapter.
The total length must not exceed the following:
1 to 4 devices
5 to 8 devices
NOTE
You must count the controller as one device.
When calculating the total length of the SCSI cables connected to the SCSI adapter, use the
following estimates where appropriate:
SCSI cabling inside a desktop system
SCSI cabling inside each external device
NOTE
The last external device on the SCSI cable chain must supply active termination. All other
external devices must have SCSI termination disabled or removed.
Disabling Ultra SCSI Capability
To ensure proper operation of the external SCSI devices with a desktop system, you should
disable Ultra SCSI capability under the following conditions:
SCSI-1
SCSI-2
6 meters
3 meters
3 meters
3 meters
Ultra SCSI
3 meters
1.5 meters
101.6 mm
203.2 mm
Advertisement
Table of Contents
Need help?
Do you have a question about the TD-x10 and is the answer not in the manual?