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Chapter 6 Hardware Installation
61
Step 6 Set Termination
You must terminate the SCSI bus properly. Set termination
at both ends of the SCSI cable. The SCSI bus is an
electrical transmission line and must be terminated
properly to minimize reflections and losses. Termination
should be set at each end of the SCSI cable(s), as shown
below. Termination is always enabled, regardless of the
configuration. However, you can override this setting by
setting another state.
For a disk array, set SCSI bus termination so that removing
or adding a SCSI device does not disturb termination. An
easy way to do this is to connect the ADAC Ultra2 S466
card to one end of the SCSI cable and to connect an
external terminator module at the other end of the cable.
The connectors between the two ends can connect SCSI
devices. Disable termination on the SCSI devices. See the
manual for each SCSI device to disable termination.