Power Computing PowerBase Low-Profile, User Manual

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Connecting Peripheral Devices
18
PowerCenter Pro User’s Guide
For Technical Support, Call 1-800-708-6227
To determine what SCSI IDs have already been assigned to which devices, go
to the
H a r d D i s k T o o l k i t ™ P E folder in the U t i l i t i e s folder on your hard
disk and run
H D T P r i m e r ™ P E
. HDT Primer will scan your SCSI buses and
display the Bus number (0 or 1), the SCSI ID, name, and other parameters of all
of the SCSI devices on the bus (see example below).
The 20 MB per second UltraSCSI bus is Bus 1; the conventional 5 MB per
second SCSI bus is Bus 0.
Ensuring proper termination
For a SCSI chain to work properly, it must be terminated correctly. The basic
rule about SCSI termination is simple: the device at the end of the chain must
be
terminated . Active termination is recommended for external SCSI chains, as
it reduces noise and increases reliability. Devices located between the
computer and the end of the chain must be unterminated.
2 Conn Periph Page 18 Friday, June 6, 1997 9:41 AM