LSI SYM8953U manual Scsi Interface

Page 69

A.2.2 The SCSI Interface

The SCSI interface conforms to ANSI X 3T10.11/1142.

The SCSI interface operates as 16-bit, synchronous or asynchronous, SE or LVD, and supports SCSI-3 protocols and 8-bit and 16-bit arbitration. The interface is made through connectors J2 and J3.

Active SE or LVD SCSI termination is provided automatically. SCSI termination power is supplied by the board.

Connector J2 is a 68-pin HD right angle header used for internal connections.

Connector J3 is a 68-pin HD right angle connector that protrudes through the back panel bracket and is used for external connections.

Table A.4 and Table A.5 show the signal assignments for J2 and J3 respectively.

Operational Environment

A-7

Image 69

Contents December User’s GuideElectromagnetic Compatibility Notices Iii Page Contents Appendix a Technical Specifications Tables ViiiContents Preface AudienceOrganization Related Publications General Description Chapter Using the SYM8953U Host AdapterFeatures PCI InterfaceScsi Interface Interface Descriptions Board CharacteristicsPCI Interface Ultra2 Scsi Technology LVD Link TechnologyBenefits of LVD Link On-Board LED Quick Installation Procedure Chapter Installing the SYM8953U Host AdapterInstalling the SYM8953U Host Adapter Before You Start Detailed Installation ProcedureInserting the Host Adapter Hardware Connections for the SYM8953U Host Adapter Inserting the Host Adapter Scsi Bus Widths and Speeds Connecting the Scsi PeripheralsLVD Scsi Bus LengthsScsi Cables Internal Scsi Ribbon Cable to Host Adapter Connection Making Internal Scsi Bus ConnectionsDetailed Installation Procedure Connecting Additional Internal Scsi Devices Multiple Internal Scsi Devices Chained Together Scsi LED Connector External Cable to Host Adapter Making External Scsi Bus Connections10 External Scsi Device Cable 11 Multiple External Scsi Devices Chained Together Scsi Bus Termination 12 Internal Scsi Device Termination Internal Bus Connections13 External Scsi Device Termination External Bus Connections14 Internal and External Scsi Device Termination Internal and External Bus ConnectionsSetting Scsi IDs Scsi ID Record Verify Installation Procedures Done Completing the InstallationOverview of the Scsi Bios Configuration Utility Chapter Configuring the SYM8953U Host AdapterStarting the Configuration Utility Symbios Scsi Bios Configuration Utility Menus Exiting the Scsi Bios Configuration UtilityUsing the Menus Main Menu Configuration CommandsMain Menu Fields and Descriptions Main MenuNVM Adapter Properties MenuAdapter Properties Menu Field Field Type Descriptions Value Adapter Properties Fields and DescriptionsIs moved between adapters from different vendors Device Properties Menu Device Properties Menu Left Half Device Properties Menu Right Half Field Field Type Description Value Device Properties Fields and DescriptionsForever should an operation fail Boot Adapter List Menu Boot Adapter List Menu Boot Adapter List Fields and Descriptions Global Properties Menu Global Properties MenuGlobal Properties Fields and Descriptions Exit Menu Exit MenuSymbios Scsi Bios Configuration Utility Menus Configuring the SYM8953U Host Adapter Appendix a Technical Specifications Physical CharacteristicsPhysical Environment Table A.1 Maximum Power Requirements Electrical CharacteristicsSafety Characteristics Thermal, Atmospheric CharacteristicsOperational Environment Electromagnetic CompliancePCI Interface Signal Name Pin Table A.2 PCI Connector J1 FrontTable A.3 PCI Connector J1 Back Scsi Interface SDP1+ SDP1− Table A.4 Internal Scsi Connector J2Table A.5 External Scsi Connector J3 Scsi Busy LED Table A.6 LED Connector J4Appendix B Glossary of Terms Abbreviations DMA Bus ConfigurationMaster Device DriverFirmware FileHard Disk HostMbyte Main MemoryMotherboard MultitaskingPort Number Port AddressQueue Tags Risc CoreScsi Device System BiosProcessor Single-EndedVirtual Memory Ultra2 ScsiWide Scsi Wide Ultra ScsiGlossary of Terms and Abbreviations IX-1 IndexIX-2Index Customer Feedback Excellent Good Average Fair Poor Reader’s CommentsCalifornia Distributors by StateNew York Direct Sales Representatives by State Component and HAB International Sales Offices and Design Resource CentersInternational Distributors