3 connecting the scsi peripherals, Connecting the scsi peripherals, Scsi bus widths and speeds – LSI 8751D User Manual
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Detailed Installation Procedure
2-5
Step 7.
The bracket around the connectors J3 (see
) should
fit in the slot where you removed the blank panel. Secure the
bracket with the bracket screw (see
) before making
the internal and external SCSI bus connections.
2.2.3 Connecting the SCSI Peripherals
SCSI bus connections to the LSI8751D inside your computer are made
with an unshielded, 68-conductor ribbon cable (see
). One side
of this cable is marked with a color to indicate the pin-1 side. Sometimes
the connectors on this cable are keyed to ensure proper pin-1
connection.
All external SCSI bus connections to the LSI8751D are made with
shielded, 68-conductor cables (see
). The connectors on this
cable are always keyed to ensure proper pin-1 connection.
lists the SCSI bus widths and speeds as established by the
SCSI Trade Association (STA).
Important:
Use only cables designed and specified for operation with
Ultra SCSI devices to make connections to the LSI8751D.
See
for an example of the required cables.
Table 2.1
SCSI Bus Widths and Speeds
STA Terms
SCSI Bus
Width, Bits
SCSI Bus Speed
Maximum Data Rate,
Mbytes/s
SCSI-1
8
5
Fast SCSI
8
10
Fast Wide SCSI
16
20
Ultra SCSI
8
20
Wide Ultra SCSI
16
40
Ultra2 SCSI
8
40
Wide Ultra2 SCSI
16
80