Installation guide

SCSI Termination
3-12 DAC960PG Installation Guide
Terminating Combined Internal and External Disk Arrays
If some SCSI devices are connected to the internal connector of a channel,
and some SCSI devices are connected to the external connector of the same
channel, the two ends of the SCSI bus farthest from the controller must each
be terminated.
The DAC960PG will automatically
disable
its on board SCSI termination.
Figure 3-5. Combination External/Internal Disk Array, SCSI Termination
Selecting the Correct Terminator
Use ALT-2 type external SCSI terminators for operating a SCSI channel at
10M Bytes/second (or faster) synchronous transfer rates. Use ALT-1 type
external SCSI terminators, for operating a SCSI channel at 5M Bytes/second
synchronous or asynchronous transfer rate. The DACCF Configuration
Utility can be used to set the transfer rate and mode for each channel.