Q-Logic QLA12160 manual Features

Features 1 – Introduction

The QLA12160 board supports Ultra, Ultra2, and Ultra3 transfer speeds. The board can connect computers to other computers or to peripheral devices such as CD-ROM drives, tape drives, and hard disk drives. SCSI allows connecting the following numbers and types of devices to a single port by daisy chaining:

■15 fast, wide SCSI devices

■15 Ultra2 or Ultra3, LVD SCSI devices

■6 Ultra SCSI devices (QLA12160 board in single-ended mode)

A daisy chain is a series of connections where the first device is connected to the host adapter board, the second device is connected to the first device, and so on. A daisy chain can be created either by using a daisy chain cable (one cable with multiple connectors) or by using multiple cables. Each SCSI device must have a unique SCSI ID.

Because SCSI allows the computer to use a standard set of commands to communicate with peripherals, adding a variety of peripherals to your computer using one host adapter board is easy.

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Features

■Compliance with Intel PCI version 2.2 specification

■Compliance with ANSI X3.131-1994 SCSI-2 standard

■Compliance with ANSI X3T10/1071D SCSI-3 Fast-20 standard (Ultra SCSI)

■Compliance with ANSI X3T10/1142D Fast-40 draft (Ultra2 SCSI)

■Compliance with ANSI T10 project 855D, Information Technology— SCSI-3 Parallel Interface (SPI)

■Compliance with ANSI T10 project 1142D, Information Technology—SCSI Parallel Interface-2(SPI-2)

■Compliance with ANSI T10 project 1302D, Information Technology —SCSI Parallel Interface-3(SPI-3)

■Compliance with U.S. and international safety and emissions standards

■Support for asynchronous and synchronous transfer modes

■Support for synchronous SCSI data transfer rates:

❑Ultra3, LVD SCSI (160 MBps)

❑Ultra2, LVD SCSI (80 MBps)

❑Ultra SCSI wide (40 MBps)

❑Ultra SCSI narrow (20 MBps)

❑Fast SCSI wide (20 MBps)

❑Fast SCSI narrow (10 MBps)

❑SCSI narrow (5 MBps)

■Support for single-ended mode

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