LSI U160 - Manual (Page 39)

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Detailed Installation Procedure 2-19
2.2.6.1 Internal Bus Connections
If you have only internal SCSI device connections to your host adapter,
you must terminate the last internal device on the SCSI bus. You must
disable the terminators on all other devices. Termination on your host
adapter is automatically enabled in this case.
Figure 2.12 shows an example of how termination is determined for this
SCSI bus configuration.
Figure 2.12 Internal SCSI Device Termination
Last Device on
Does not end Bus –
Host Adapter
Bus –
Terminators
Terminators Disabled
Automatically
Terminated
Enabled