LSI SYM8953U manual External Bus Connections, External Scsi Device Termination

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 on Bus - Terminators Enabled

Does not end Bus - Terminators Disabled

Host Adapter

Automatically

Terminated

2-20 Installing the SYM8953U Host Adapter