Advantech 2006957006 5th Edition Introduction, If any peripheral is attached to the Ultra2 SCSI

6.1 Introduction

The PCM-9570/S is equipped with a Symbios SYM53C895 single-chip PCI-to-SCSI host adapter which provides a powerful Ultra2 multitasking interface between your computer’s PCI bus and SCSI devices (disk drives, CD-ROM drives, scanners, tape backups, removable media drives, etc.). Up to a total of 15 SCSI devices can be connected to the SCSI connector through the Symbios SYM53C895.

The SYMBIOS 53C895 is a 16-bit, LVD/SE (Low Voltage Differential/Single-Ended) SCSI solution for your computer. It can support both legacy Fast SCSI and Ultra SCSI devices, as well as the newest LVD Ultra2 SCSI devices.

If you need to configure the SCSI, the on-board 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 attached to the Ultra2 SCSI
	segment and is running at SE mode, one or more
	Ultra/Ultra Wide peripherals will be attached to the
	Ultra2 SCSI segment and will cause the Ultra2 SCSI
	segment to run at speeds up to 40 MBytes/sec
	instead of 80 MBytes/sec.

60 PCM-9570/S User's Manual