Compaq EN Series - Appendix E Wide Ultra SCSI Host Adapter; E.1 Introduction

Technical Reference Guide
Compaq Personal Computers
Original - April 1998
E-1
Appendix E
WIDE ULTRA SCSI HOST ADAPTER
E. Appendix E Wide Ultra SCSI Host Adapter
E.1 INTRODUCTION
The Adaptec AHA-2940UW SCSI Host Adapter (Compaq p/n 334136-001) is a PCI peripheral
that provides high performance interfacing with compatible SCSI peripherals, specifically hard
drives. The card installs in a PCI slot and supports full bus mastering capability.
NOTE:
This appendix describes the Wide Ultra SCSI Adapter in general. For detailed
information on the Ultra SCSI Adapter card refer to Adaptec, Inc documentation.
This appendix covers the following subjects:
♦ Functional description (E.2) page E-2
♦ SCSI adapter programming (E.3) page E-3
♦ Specifications (E.4) page E-3
♦ User guidelines (E.5) page E-4
♦ SCSI connectors (E.6) page E-5
Figure E–1.
Wide Ultra SCSI Host Adapter Card Layout
External
Wide Ultra
SCSI Connector
AIC7880
Internal
Wide Ultra SCSI Connector
Internal
Ultra SCSI Connector