SCSI card 39160

Feature: INTRODUCTION The Adaptec SCSI Card 39160 enables you to connect up to 30 SCSI devices-such as very large arrays of high-performance HDDs,external storage subsystems,clustered congfigurations,Ultral 160 hard disk drives,scanners,and CD-ROM drives-to any Intel-based computer with 64-or 32-bit PCI expansion slots. The Adaptec SCSI card 39160 has two independent SCSI channels,each with a maximum throughput of 160 MBytes/sec.SCSI Channel A (marked%22CH 1/A%22on the card) has two internal connectors and one external connector.SCSI Channel B (marked%22CH 2/B%22on the card) has one internal and one external connector. You can connect newer LVD (Low Voltage Differential) SCSI devices (includes Ultral 160 and 2 SCSI devices),to the 68-pin LVD/SE (Low Voltage Differential/Single-Ended) connectors on both SCSI channels. Or you can operate the LVD SCSI devices at their maximum speed on Channel B while at the same using legacy SCSI devices on Channel A. Although the Adaptec SCSI Card 39160 is a 64-bit PCI card, it also works in a 32-bit PCI slot.When installed in a 32-bit PCI slot,the card automatically runs in the slower 32-bit mode. This installation guide explains how to l Install the Adaptec SCSI Card 39160 l Set up SCSI devices l Connect SCSI devices Installation Guide Support for Older SCSI Devices We recommend that if you have single-ended Ultra SCSI and earlier SCSI devices you connect them to Channel A of the The Adaptec SCSI Card 39160 and that you connect LVD SCSI devices to Channel B. This allows the Adaptec SCSI Card 39160 to support LVD SCSI devices at speeds up to 160 MBytes/sec while at the same time supporting Ultra (legacy) devices at speeds up to 40 MBytes/sec. It also allows you to use longer cable lengths for the newer SCSI devices. (For more information about the maximum cable lengths see the Adaptec SCSI Card 39160 User%27s Reference). NOTE If you connect Wide Ultra/ Ultra SCSI devices to the same SCSI Channel as the LVD SCSI devices,the data transfer rate for the LVD SCSI devices will drop to Ultra SCSI performance levels. To achieve maximum data transfer rates for the LVD SCSI devices,be sure to connect them on their own SCSI channel.