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Built-in AIT
3
Attach the cover to the basic processing unit. Plug the power cable to the outlet.
4
Turn on the basic processing unit.
5
When the SCSI bus can be set on the side of the basic processing unit, set the following on the
Built-In AIT.
• Transfer rate
: 160 Mbyte/second (max., synchronous)
• Data bus width
: 16 bits (Ultra Wide SCSI, LVD/SE)5
• DISCONNECT/RECONNECT function
: Enable
This device has a maximum transfer rate of 160 Mbyte/second. Set the transfer rate to 160
Mbyte/second on Built-In AIT units that support it, and to the next greatest transfer rate under
160 Mbyte/second on those that do not.
When using the Ultra 160 or higher SCSI controller board, set to 160 Mbyte/second.
Also, when the N8141-28AF/-28BF expansion unit is connected, even if the transfer rate of
the Built-In AIT is 160 Mbyte/second, set it to the next greatest transfer rate under
160 Mbyte/second.
For details, see the instruction manual provided with the basic processing unit.
Important
Set the maximum transfer rates as follows according to the number of devices connected to the
bus and the SCSI cable length.
The following are standard values.
If you have other specifications at your disposal, use them over the ones below.
SCSI ID
Maximum transfer
Data bus
Maximum cable Maximum number
rate (Mbyte/s)
width (bit)
length (m)
of devices
Single-ended
LVD*
(SCSI host +
number of devices)
Ultra 160 SCSI
160
16
4
12
16
Ultra 2 Wide SCSI
80
16
-
12
16
Ultra Wide SCSI
40
16
3
-
4
Ultra Wide SCSI
40
16
1.5
-
8
Ultra Wide SCSI
40
16
-
3
16
Fast Wide SCSI
20
16
3
3
16
Wide SCSI
10
16
6
3
8
* When the SCSI host and all devices connected to the same bus are LVD-compatible.