LSI U160 - Manual (Page 40)

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2-20 Installing the LSIU160
2.2.6.2 External Bus Connections
If you have only external SCSI device connections to your host adapter,
you must terminate the last external device on the SCSI bus. You must
disable the terminators on all other devices. Termination on the host
adapter is automatically enabled in this case.
Figure 2.13 shows an example of how termination is determined for this
SCSI bus configuration.
Figure 2.13 External SCSI Device Termination
Last Device
Does not
Host Adapter
on Bus –
Terminators
Enabled
end Bus –
Terminators
Disabled
Automatically
Terminated