Advantech PCA-6187 user manual SCSI Setup & Configuration, Introduction

Models: PCA-6187

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Chapter 7 SCSI Setup & Configuration

Chapter 7 SCSI Setup & Configuration

7.1 Introduction

The PCA-6187 is equipped with an Adaptec AIC-7899 single-chip PCI- to-SCSI host adapter which provides a dual channel Ultra 160 multi- tasking interface between your computer.s PCI bus and SCSI devices (disk drives, CD-ROM drives, scanners, tape backups, removable media drives, etc.). Ultra 160 is a new generation of SCSI technology that expands SCSI performance from 80 MBytes/sec to 160 MBytes/ sec. Up to a total of 15 SCSI devices can be connected to each of the SCSI con- nectors.

The AIC-7899 combines this Ultra 160 SCSI technology with Adaptec.s SpeedFlex. technology. SpeedFlex allows the Adaptec SCSI card to be backwards compatible with previous generations of SCSI products, while allowing newer Ultra 160 SCSI devices to operate at the higher 160 MBytes/sec rate.

There are 3 SCSI connectors on the CPU card: CN50 and CN51 for Ultra 160 devices, and CN52 for 50-pin SCSI devices. You can use Ultra 160 and Ultra wide devices simultaneously without compromising the perfor- mance.

If you need to configure the SCSI, the onboard SCSI Select configuration utility allows you to change host adapter settings without opening the computer or handling the board. The SCSI Select utility also contains a utility to low-level format and verifies the disk media on your hard disk drives.

Note:

If any peripheral is running at SE mode, the

 

Ultra 160 SCSI segment will run at speeds up to

 

40 MBytes/sec only instead of 160 MBytes/sec.

PCA-6187 User’s Manual

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Advantech PCA-6187 user manual SCSI Setup & Configuration, Introduction, If any peripheral is running at SE mode, the