4
There are several things you may need to do to your SCSI devices
before you connect them to the Adaptec SCSI Card 29320LP:
•
Check the SCSI IDs
•
Set the termination
•
Connect the power cables
Since setup can vary from device to device, always refer to the
device’s documentation for specific instructions.
Folowing are some guidelines for setting SCSI IDs and
termination on your devices.
Check the SCSI IDs
The Adaptec SCSI Card 29320LP and each device you connect to
it must have a unique SCSI ID number ranging from 0 to 15. No
two devices on the SCSI channel can have the same SCSI ID.
The Adaptec SCSI Card 29320LP is preset to ID 7 and should not
be changed. If you boot from a SCSI hard disk, make sure the
hard disk SCSI ID is set to 0. (Most SCSI hard disks are preset to
SCSI ID 0 at the factory.) The SCSI IDs for internal devices are
usually set with jumpers; SCSI IDs for external devices are
usually set with a switch on the back of the device.
Terminate the Ends
To ensure reliable communication on the SCSI bus, the device at
the end of each cable, or the end of the cable itself, must have a
terminator installed (or enabled). Terminators must be removed,
or termination must be disabled, on devices between the ends of
each cable.
S
ETTING
U
P
SCSI D
EVICES
When connecting Ultra320/160 or Ultra2 SCSI devices,
the SCSI bus must be terminated either on the end of the cable
(with a permanent terminator) or with a separate terminating
connector. Ultra SCSI and earlier single-ended devices can
terminate the bus directly from the device. If you use an Ultra
SCSI terminator on an LVD Ultra320/160 and Ultra2 SCSI bus,
the SCSI devices will not operate properly. For this reason be
sure that you have the necessary Ultra320/160 or Ultra2 cable
and terminator before installing the Ultra320/160 SCSI
devices.
N
OTE
ASC-29320LP IG.fm Page 4 Wednesday, August 14, 2002 4:45 PM
