Asus P/I-P55SP3AV - Manual (Page 78)

Technical Summary
Many SCSI devices use a set of terminating resistors to terminate
the device. The PCTSC200 has "active" termination that you set us­
ing jumper JP5. If you need to terminate the PCI-SC200, you do it by
setting the jumper. The are two settings, terminated and
unterminated, as shown below.
JP5: Terminator setting
Termination
Enabled
(default)
in
O-
( )
LO
Q_
%
Termination
Disabled
Decide whether or not you need to terminate the PCI-SC200
based on its position in the SCSI chain. Only the devices at each end
of the chain need to be terminated. If you have only internal or only
external devices connected to the PCI-SC200, then you must termi­
nate the PCI-SC200. If you have both internal and external devices
connected, you must not terminate the card. The figures on the next
page illustrate these requirements.
SCSI ID Numbers
All SCSI devices, including the PCI-SC200 interface card must
have a SCSI identification number that is not in use by any other SCSI
device. There are eight possible ID numbers, 0 through 7. The PCI-
SC200 has a fixed SCSI ID of 7.
You can connect up to seven SCSI devices to the interface card.
You must set a SCSI ID number for each device. SCSI devices vary
in how they set the ID number. Some use jumpers, others have some
kind of selector switch. Refer to the manual for any device you in­
stall for details on how to set its ID number.
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