Adaptec 29320A-R User Guide - Page 30

Using the Adaptec SCSI Card and SCSI Devices Using Ultra320/Ultra160 Hard Disk Drives s For the dual-channel cards, Adaptec recommends that you connect your LVD (Ultra 320, Ultra160, and Ultra2) SCSI devices to SCSI Channel A and your non-LVD SCSI devices (if any) to SCSI Channel B. This allows the LVD SCSI devices to run at their maximum performance levels of 320 MB/sec, 160 MB/sec, or 80 MB/sec. Or you can connect LVD SCSI devices to both SCSI channels. If you combine LVD and non-LVD SCSI devices on the same SCSI channel, the data transfer rate of the LVD SCSI devices will drop down to non-LVD SCSI performance levels of up to 40 MB/sec. s Internal LVD SCSI devices come from the factory with termination disabled and cannot be changed. Proper termination is provided by the terminator at the end of the internal LVD SCSI cable. Adaptec SCSI Card 39320A The following is a figure of the Adaptec SCSI Card 39320A. 68-pin Internal LVD/SE Connector 68-pin Internal LVD/SE Connector Channel A Channel B 68-pin External LVD/SE VHDCI Connector Channel A 68-pin External LVD/SE VHDCI Connector Channel B 2-3